What is fx.exe?

fx.exe is usually located in the 'c:\downloads\' folder.

Some of the anti-virus scanners at VirusTotal detected fx.exe.

If you have additional information about the file, please share it with the FreeFixer users by posting a comment at the bottom of this page.

Vendor and version information [?]

fx.exe does not have any version or vendor information.

Digital signatures [?]

fx.exe is not signed.

VirusTotal report

43 of the 65 anti-virus programs at VirusTotal detected the fx.exe file. That's a 66% detection rate.

ScannerDetection Name
Acronis suspicious
Ad-Aware Trojan.GenericKD.41106692
ALYac Trojan.GenericKD.41106692
Arcabit Trojan.Generic.D2733D04
Avast Win32:Trojan-gen
AVG Win32:Trojan-gen
Avira TR/Kryptik.smodr
BitDefender Trojan.GenericKD.41106692
Comodo Malware@#2pogn9j0248ot
CrowdStrike win/malicious_confidence_90% (W)
Cyren W32/Trojan.VGJW-5139
eGambit PE.Heur.InvalidSig
Emsisoft Trojan.GenericKD.41106692 (B)
Endgame malicious (high confidence)
ESET-NOD32 a variant of Win32/GenKryptik.CZNB
F-Secure Trojan.TR/Kryptik.smodr
Fortinet W32/GenKryptik.CZNB!tr
GData Trojan.GenericKD.41106692
Ikarus Trojan.Win32.Krypt
Invincea heuristic
Jiangmin Trojan.Yakes.achi
K7AntiVirus Trojan ( 005498781 )
K7GW Trojan ( 005498781 )
Kaspersky Trojan.Win32.Yakes.ymmi
Malwarebytes Trojan.Crypt
MAX malware (ai score=99)
McAfee RDN/Generic.hbg
McAfee-GW-Edition RDN/Generic.hbg
Microsoft Trojan:Win32/Occamy.C
MicroWorld-eScan Trojan.GenericKD.41106692
NANO-Antivirus Trojan.Win32.Yakes.fobflc
Paloalto generic.ml
Panda Trj/GdSda.A
Qihoo-360 Win32/Trojan.882
Rising Trojan.GenKryptik!8.AA55 (CLOUD)
SentinelOne DFI - Malicious PE
Sophos Mal/Cerber-AL
Tencent Win32.Trojan.Yakes.Ahyk
Trapmine malicious.high.ml.score
TrendMicro-HouseCall TROJ_GEN.F0C2C00CD19
VBA32 BScope.TrojanBanker.Chthonic
ViRobot Trojan.Win32.Z.Genkryptik.442056
ZoneAlarm Trojan.Win32.Yakes.ymmi
43 of the 65 anti-virus programs detected the fx.exe file.

Sandbox Report

The following information was gathered by executing the file inside Cuckoo Sandbox.

Summary

Successfully executed process in sandbox.

Summary

{
    "file_created": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\4E644E4B.tmp"
    ],
    "dll_loaded": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\61325437.tmp",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\32364C74.tmp",
        "KERNEL32.dll",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\59464357.tmp",
        "SHELL32.dll",
        "kernel32.dll",
        "MSVCRT.dll",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\4E644E4B.tmp",
        "ADVAPI32.dll",
        "ole32.dll",
        "SHLWAPI.dll",
        "USER32.dll"
    ],
    "file_failed": [
        "C:\\Windows\\System32\\offreg.dll",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\JJouBwlBvv"
    ],
    "file_copied": [
        [
            "C:\\Windows\\System32\\ntdll.dll",
            "C:\\Users\\cuck\\AppData\\Local\\Temp\\61325437.tmp"
        ],
        [
            "C:\\Windows\\System32\\kernel32.dll",
            "C:\\Users\\cuck\\AppData\\Local\\Temp\\32364C74.tmp"
        ],
        [
            "C:\\Windows\\System32\\advapi32.dll",
            "C:\\Users\\cuck\\AppData\\Local\\Temp\\59464357.tmp"
        ]
    ],
    "regkey_opened": [
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE",
        "HKEY_LOCAL_MACHINE\\SYSTEM\\Select",
        "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\OLE\\Tracing",
        "HKEY_CLASSES_ROOT\\interface\\{aa5b6a80-b834-11d0-932f-00a0c90dcaa9}",
        "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Windows NT\\CurrentVersion\\Diagnostics"
    ],
    "file_written": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\4E644E4B.tmp"
    ],
    "file_deleted": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\4E644E4B.tmp"
    ],
    "mutex": [
        "{03B8A4CD-37A3-3A5D-99BA-2F2544D2A32F}",
        "NtMute"
    ],
    "regkey_read": [
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE\\PageAllocatorSystemHeapIsPrivate",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\Wow6432Node\\Interface\\{AA5B6A80-B834-11D0-932F-00A0C90DCAA9}\\(Default)",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE\\PageAllocatorUseSystemHeap",
        "HKEY_LOCAL_MACHINE\\SYSTEM\\Select\\Current"
    ]
}

Dropped

[
    {
        "yara": [],
        "sha1": "c53972b97a0046e19d3115ec1e49460748bfb6d3",
        "name": "873a2ba4c3bb88b9_4e644e4b.tmp",
        "filepath": "C:\\Users\\cuck\\AppData\\Local\\Temp\\4E644E4B.tmp",
        "type": "PE32 executable (DLL) (console) Intel 80386, for MS Windows",
        "sha256": "873a2ba4c3bb88b9354eab47b8e5f8118212a63abf7cb149696a385edb57dd63",
        "urls": [],
        "crc32": "C52A5E19",
        "path": "\/home\/hpuser\/.cuckoo\/storage\/analyses\/8903\/files\/873a2ba4c3bb88b9_4e644e4b.tmp",
        "ssdeep": null,
        "size": 47104,
        "sha512": "255f850ef0f8fd5afdaf2d8e803247d9c42072ea19303b86a01167e8a470c97ce018ad73dbc6bca1284c2d011ec45c1f4ef0342583185a1db0b3f209fe5e173b",
        "pids": [
            2816
        ],
        "md5": "94bf8c26c5b85c2c490cf4440ab8170b"
    }
]

Generic

[
    {
        "process_path": "C:\\Users\\cuck\\AppData\\Local\\Temp\\afdbf62d81e1c3c9c730a1f59799326a4969a88caae485607d35aa4f3b70d3fb.bin",
        "process_name": "afdbf62d81e1c3c9c730a1f59799326a4969a88caae485607d35aa4f3b70d3fb.bin",
        "pid": 2816,
        "summary": {
            "file_created": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\4E644E4B.tmp"
            ],
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\61325437.tmp",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\32364C74.tmp",
                "KERNEL32.dll",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\59464357.tmp",
                "SHELL32.dll",
                "kernel32.dll",
                "MSVCRT.dll",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\4E644E4B.tmp",
                "ADVAPI32.dll",
                "ole32.dll",
                "SHLWAPI.dll",
                "USER32.dll"
            ],
            "file_failed": [
                "C:\\Windows\\System32\\offreg.dll",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\JJouBwlBvv"
            ],
            "file_copied": [
                [
                    "C:\\Windows\\System32\\ntdll.dll",
                    "C:\\Users\\cuck\\AppData\\Local\\Temp\\61325437.tmp"
                ],
                [
                    "C:\\Windows\\System32\\kernel32.dll",
                    "C:\\Users\\cuck\\AppData\\Local\\Temp\\32364C74.tmp"
                ],
                [
                    "C:\\Windows\\System32\\advapi32.dll",
                    "C:\\Users\\cuck\\AppData\\Local\\Temp\\59464357.tmp"
                ]
            ],
            "regkey_opened": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE",
                "HKEY_LOCAL_MACHINE\\SYSTEM\\Select",
                "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\OLE\\Tracing",
                "HKEY_CLASSES_ROOT\\interface\\{aa5b6a80-b834-11d0-932f-00a0c90dcaa9}",
                "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Windows NT\\CurrentVersion\\Diagnostics"
            ],
            "file_written": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\4E644E4B.tmp"
            ],
            "file_deleted": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\4E644E4B.tmp"
            ],
            "mutex": [
                "{03B8A4CD-37A3-3A5D-99BA-2F2544D2A32F}",
                "NtMute"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE\\PageAllocatorSystemHeapIsPrivate",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\Wow6432Node\\Interface\\{AA5B6A80-B834-11D0-932F-00A0C90DCAA9}\\(Default)",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE\\PageAllocatorUseSystemHeap",
                "HKEY_LOCAL_MACHINE\\SYSTEM\\Select\\Current"
            ]
        },
        "first_seen": 1597297986.59375,
        "ppid": 2016
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1597297986.328125,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 23,
        "families": [],
        "description": "Queries for the computername",
        "severity": 1,
        "marks": [
            {
                "call": {
                    "category": "misc",
                    "status": 1,
                    "stacktrace": [],
                    "api": "GetComputerNameA",
                    "return_value": 1,
                    "arguments": {
                        "computer_name": "CUCKPC"
                    },
                    "time": 1597297987.48475,
                    "tid": 2420,
                    "flags": {}
                },
                "pid": 2816,
                "type": "call",
                "cid": 286
            },
            {
                "call": {
                    "category": "misc",
                    "status": 1,
                    "stacktrace": [],
                    "api": "GetComputerNameA",
                    "return_value": 1,
                    "arguments": {
                        "computer_name": "CUCKPC"
                    },
                    "time": 1597297987.48475,
                    "tid": 2420,
                    "flags": {}
                },
                "pid": 2816,
                "type": "call",
                "cid": 287
            },
            {
                "call": {
                    "category": "misc",
                    "status": 1,
                    "stacktrace": [],
                    "api": "GetComputerNameA",
                    "return_value": 1,
                    "arguments": {
                        "computer_name": "CUCKPC"
                    },
                    "time": 1597297987.48475,
                    "tid": 2420,
                    "flags": {}
                },
                "pid": 2816,
                "type": "call",
                "cid": 288
            },
            {
                "call": {
                    "category": "misc",
                    "status": 1,
                    "stacktrace": [],
                    "api": "GetComputerNameA",
                    "return_value": 1,
                    "arguments": {
                        "computer_name": "CUCKPC"
                    },
                    "time": 1597297987.78175,
                    "tid": 2420,
                    "flags": {}
                },
                "pid": 2816,
                "type": "call",
                "cid": 1443
            },
            {
                "call": {
                    "category": "misc",
                    "status": 1,
                    "stacktrace": [],
                    "api": "GetComputerNameA",
                    "return_value": 1,
                    "arguments": {
                        "computer_name": "CUCKPC"
                    },
                    "time": 1597297987.78175,
                    "tid": 2420,
                    "flags": {}
                },
                "pid": 2816,
                "type": "call",
                "cid": 1444
            },
            {
                "call": {
                    "category": "misc",
                    "status": 1,
                    "stacktrace": [],
                    "api": "GetComputerNameA",
                    "return_value": 1,
                    "arguments": {
                        "computer_name": "CUCKPC"
                    },
                    "time": 1597297987.78175,
                    "tid": 2420,
                    "flags": {}
                },
                "pid": 2816,
                "type": "call",
                "cid": 1445
            },
            {
                "call": {
                    "category": "misc",
                    "status": 1,
                    "stacktrace": [],
                    "api": "GetComputerNameA",
                    "return_value": 1,
                    "arguments": {
                        "computer_name": "CUCKPC"
                    },
                    "time": 1597297987.78175,
                    "tid": 2420,
                    "flags": {}
                },
                "pid": 2816,
                "type": "call",
                "cid": 1446
            },
            {
                "call": {
                    "category": "misc",
                    "status": 1,
                    "stacktrace": [],
                    "api": "GetComputerNameA",
                    "return_value": 1,
                    "arguments": {
                        "computer_name": "CUCKPC"
                    },
                    "time": 1597297987.78175,
                    "tid": 2420,
                    "flags": {}
                },
                "pid": 2816,
                "type": "call",
                "cid": 1447
            },
            {
                "call": {
                    "category": "misc",
                    "status": 1,
                    "stacktrace": [],
                    "api": "GetComputerNameA",
                    "return_value": 1,
                    "arguments": {
                        "computer_name": "CUCKPC"
                    },
                    "time": 1597297987.78175,
                    "tid": 2420,
                    "flags": {}
                },
                "pid": 2816,
                "type": "call",
                "cid": 1448
            },
            {
                "call": {
                    "category": "misc",
                    "status": 1,
                    "stacktrace": [],
                    "api": "GetComputerNameA",
                    "return_value": 1,
                    "arguments": {
                        "computer_name": "CUCKPC"
                    },
                    "time": 1597297987.78175,
                    "tid": 2420,
                    "flags": {}
                },
                "pid": 2816,
                "type": "call",
                "cid": 1449
            },
            {
                "call": {
                    "category": "misc",
                    "status": 1,
                    "stacktrace": [],
                    "api": "GetComputerNameA",
                    "return_value": 1,
                    "arguments": {
                        "computer_name": "CUCKPC"
                    },
                    "time": 1597297987.78175,
                    "tid": 2420,
                    "flags": {}
                },
                "pid": 2816,
                "type": "call",
                "cid": 1450
            },
            {
                "call": {
                    "category": "misc",
                    "status": 1,
                    "stacktrace": [],
                    "api": "GetComputerNameA",
                    "return_value": 1,
                    "arguments": {
                        "computer_name": "CUCKPC"
                    },
                    "time": 1597297987.78175,
                    "tid": 2420,
                    "flags": {}
                },
                "pid": 2816,
                "type": "call",
                "cid": 1451
            },
            {
                "call": {
                    "category": "misc",
                    "status": 1,
                    "stacktrace": [],
                    "api": "GetComputerNameA",
                    "return_value": 1,
                    "arguments": {
                        "computer_name": "CUCKPC"
                    },
                    "time": 1597297987.96875,
                    "tid": 2420,
                    "flags": {}
                },
                "pid": 2816,
                "type": "call",
                "cid": 3787
            },
            {
                "call": {
                    "category": "misc",
                    "status": 1,
                    "stacktrace": [],
                    "api": "GetComputerNameA",
                    "return_value": 1,
                    "arguments": {
                        "computer_name": "CUCKPC"
                    },
                    "time": 1597297987.96875,
                    "tid": 2420,
                    "flags": {}
                },
                "pid": 2816,
                "type": "call",
                "cid": 3791
            },
            {
                "call": {
                    "category": "misc",
                    "status": 1,
                    "stacktrace": [],
                    "api": "GetComputerNameA",
                    "return_value": 1,
                    "arguments": {
                        "computer_name": "CUCKPC"
                    },
                    "time": 1597297987.96875,
                    "tid": 2420,
                    "flags": {}
                },
                "pid": 2816,
                "type": "call",
                "cid": 3794
            },
            {
                "call": {
                    "category": "misc",
                    "status": 1,
                    "stacktrace": [],
                    "api": "GetComputerNameA",
                    "return_value": 1,
                    "arguments": {
                        "computer_name": "CUCKPC"
                    },
                    "time": 1597297987.96875,
                    "tid": 2420,
                    "flags": {}
                },
                "pid": 2816,
                "type": "call",
                "cid": 3795
            },
            {
                "call": {
                    "category": "misc",
                    "status": 1,
                    "stacktrace": [],
                    "api": "GetComputerNameA",
                    "return_value": 1,
                    "arguments": {
                        "computer_name": "CUCKPC"
                    },
                    "time": 1597297987.96875,
                    "tid": 2420,
                    "flags": {}
                },
                "pid": 2816,
                "type": "call",
                "cid": 3797
            },
            {
                "call": {
                    "category": "misc",
                    "status": 1,
                    "stacktrace": [],
                    "api": "GetComputerNameA",
                    "return_value": 1,
                    "arguments": {
                        "computer_name": "CUCKPC"
                    },
                    "time": 1597297987.96875,
                    "tid": 2420,
                    "flags": {}
                },
                "pid": 2816,
                "type": "call",
                "cid": 3799
            },
            {
                "call": {
                    "category": "misc",
                    "status": 1,
                    "stacktrace": [],
                    "api": "GetComputerNameA",
                    "return_value": 1,
                    "arguments": {
                        "computer_name": "CUCKPC"
                    },
                    "time": 1597297987.96875,
                    "tid": 2420,
                    "flags": {}
                },
                "pid": 2816,
                "type": "call",
                "cid": 3801
            },
            {
                "call": {
                    "category": "misc",
                    "status": 1,
                    "stacktrace": [],
                    "api": "GetComputerNameA",
                    "return_value": 1,
                    "arguments": {
                        "computer_name": "CUCKPC"
                    },
                    "time": 1597297987.96875,
                    "tid": 2420,
                    "flags": {}
                },
                "pid": 2816,
                "type": "call",
                "cid": 3803
            },
            {
                "call": {
                    "category": "misc",
                    "status": 1,
                    "stacktrace": [],
                    "api": "GetComputerNameA",
                    "return_value": 1,
                    "arguments": {
                        "computer_name": "CUCKPC"
                    },
                    "time": 1597297987.96875,
                    "tid": 2420,
                    "flags": {}
                },
                "pid": 2816,
                "type": "call",
                "cid": 3804
            },
            {
                "call": {
                    "category": "misc",
                    "status": 1,
                    "stacktrace": [],
                    "api": "GetComputerNameA",
                    "return_value": 1,
                    "arguments": {
                        "computer_name": "CUCKPC"
                    },
                    "time": 1597297987.96875,
                    "tid": 2420,
                    "flags": {}
                },
                "pid": 2816,
                "type": "call",
                "cid": 3805
            },
            {
                "call": {
                    "category": "misc",
                    "status": 1,
                    "stacktrace": [],
                    "api": "GetComputerNameA",
                    "return_value": 1,
                    "arguments": {
                        "computer_name": "CUCKPC"
                    },
                    "time": 1597297987.96875,
                    "tid": 2420,
                    "flags": {}
                },
                "pid": 2816,
                "type": "call",
                "cid": 3807
            }
        ],
        "references": [],
        "name": "antivm_queries_computername"
    },
    {
        "markcount": 1,
        "families": [],
        "description": "One or more processes crashed",
        "severity": 1,
        "marks": [
            {
                "call": {
                    "category": "__notification__",
                    "status": 1,
                    "stacktrace": [],
                    "raw": [
                        "stacktrace"
                    ],
                    "api": "__exception__",
                    "return_value": 0,
                    "arguments": {
                        "stacktrace": "",
                        "registers": {
                            "esp": 70253048,
                            "edi": 0,
                            "eax": 0,
                            "ebp": 3145783,
                            "edx": 2130553844,
                            "ebx": 3,
                            "esi": 4298312,
                            "ecx": 3339911168
                        },
                        "exception": {
                            "instruction_r": "00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00",
                            "instruction": "add byte ptr [eax], al",
                            "exception_code": "0xc0000005",
                            "symbol": "",
                            "address": "0x330064"
                        }
                    },
                    "time": 1597297987.98475,
                    "tid": 1480,
                    "flags": {}
                },
                "pid": 2816,
                "type": "call",
                "cid": 3893
            }
        ],
        "references": [],
        "name": "raises_exception"
    },
    {
        "markcount": 4,
        "families": [],
        "description": "Allocates read-write-execute memory (usually to unpack itself)",
        "severity": 2,
        "marks": [
            {
                "call": {
                    "category": "process",
                    "status": 1,
                    "stacktrace": [],
                    "api": "NtAllocateVirtualMemory",
                    "return_value": 0,
                    "arguments": {
                        "process_identifier": 2816,
                        "region_size": 245760,
                        "stack_dep_bypass": 0,
                        "stack_pivoted": 0,
                        "heap_dep_bypass": 0,
                        "protection": 64,
                        "process_handle": "0xffffffff",
                        "allocation_type": 12288,
                        "base_address": "0x00470000"
                    },
                    "time": 1597297986.89075,
                    "tid": 2420,
                    "flags": {
                        "protection": "PAGE_EXECUTE_READWRITE",
                        "allocation_type": "MEM_COMMIT|MEM_RESERVE"
                    }
                },
                "pid": 2816,
                "type": "call",
                "cid": 5
            },
            {
                "call": {
                    "category": "process",
                    "status": 1,
                    "stacktrace": [],
                    "api": "NtAllocateVirtualMemory",
                    "return_value": 0,
                    "arguments": {
                        "process_identifier": 2816,
                        "region_size": 241664,
                        "stack_dep_bypass": 0,
                        "stack_pivoted": 0,
                        "heap_dep_bypass": 0,
                        "protection": 64,
                        "process_handle": "0xffffffff",
                        "allocation_type": 12288,
                        "base_address": "0x004b0000"
                    },
                    "time": 1597297987.48475,
                    "tid": 2420,
                    "flags": {
                        "protection": "PAGE_EXECUTE_READWRITE",
                        "allocation_type": "MEM_COMMIT|MEM_RESERVE"
                    }
                },
                "pid": 2816,
                "type": "call",
                "cid": 24
            },
            {
                "call": {
                    "category": "process",
                    "status": 1,
                    "stacktrace": [],
                    "api": "NtAllocateVirtualMemory",
                    "return_value": 0,
                    "arguments": {
                        "process_identifier": 2816,
                        "region_size": 249856,
                        "stack_dep_bypass": 0,
                        "stack_pivoted": 0,
                        "heap_dep_bypass": 0,
                        "protection": 64,
                        "process_handle": "0xffffffff",
                        "allocation_type": 12288,
                        "base_address": "0x004f0000"
                    },
                    "time": 1597297987.48475,
                    "tid": 2420,
                    "flags": {
                        "protection": "PAGE_EXECUTE_READWRITE",
                        "allocation_type": "MEM_COMMIT|MEM_RESERVE"
                    }
                },
                "pid": 2816,
                "type": "call",
                "cid": 25
            },
            {
                "call": {
                    "category": "process",
                    "status": 1,
                    "stacktrace": [],
                    "api": "NtAllocateVirtualMemory",
                    "return_value": 0,
                    "arguments": {
                        "process_identifier": 2816,
                        "region_size": 249856,
                        "stack_dep_bypass": 0,
                        "stack_pivoted": 0,
                        "heap_dep_bypass": 1,
                        "protection": 64,
                        "process_handle": "0xffffffff",
                        "allocation_type": 12288,
                        "base_address": "0x00400000"
                    },
                    "time": 1597297987.48475,
                    "tid": 2420,
                    "flags": {
                        "protection": "PAGE_EXECUTE_READWRITE",
                        "allocation_type": "MEM_COMMIT|MEM_RESERVE"
                    }
                },
                "pid": 2816,
                "type": "call",
                "cid": 148
            }
        ],
        "references": [],
        "name": "allocates_rwx"
    },
    {
        "markcount": 1,
        "families": [],
        "description": "Drops an executable to the user AppData folder",
        "severity": 2,
        "marks": [
            {
                "category": "file",
                "ioc": "C:\\Users\\cuck\\AppData\\Local\\Temp\\4E644E4B.tmp",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "exe_appdata"
    },
    {
        "markcount": 2,
        "families": [],
        "description": "The binary likely contains encrypted or compressed data indicative of a packer",
        "severity": 2,
        "marks": [
            {
                "entropy": 6.805818970401999,
                "section": {
                    "size_of_data": "0x0004b200",
                    "virtual_address": "0x00001000",
                    "entropy": 6.805818970401999,
                    "name": ".text",
                    "virtual_size": "0x0004b17b"
                },
                "type": "generic",
                "description": "A section with a high entropy has been found"
            },
            {
                "entropy": 0.7012835472578763,
                "type": "generic",
                "description": "Overall entropy of this PE file is high"
            }
        ],
        "references": [
            "http:\/\/www.forensickb.com\/2013\/03\/file-entropy-explained.html",
            "http:\/\/virii.es\/U\/Using%20Entropy%20Analysis%20to%20Find%20Encrypted%20and%20Packed%20Malware.pdf"
        ],
        "name": "packer_entropy"
    }
]

Yara

The Yara rules did not detect anything in the file.

Network

{
    "tls": [],
    "udp": [
        {
            "src": "192.168.56.101",
            "dst": "192.168.56.255",
            "offset": 546,
            "time": 3.15578293800354,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 3346,
            "time": 3.0261878967285156,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 3674,
            "time": 1.0119459629058838,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 4002,
            "time": 3.035754919052124,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 4330,
            "time": 1.5185599327087402,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 4658,
            "time": -0.09902215003967285,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 4986,
            "time": 1.5313220024108887,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 11456,
            "time": 1.0475809574127197,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 15648,
            "time": 3.155879020690918,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "f85b261322aee4c7be7ae645b2e750a7e50b8ca2afede5ce900bddd335407b65",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "77522252511cd142fe3dc53ad5c47c948b74e4d2288403103f707036598d376e",
    "irc": [],
    "https_ex": []
}

Screenshots

Screenshot from the sandbox

fx.exe removal instructions

The instructions below shows how to remove fx.exe with help from the FreeFixer removal tool. Basically, you install FreeFixer, scan your computer, check the fx.exe file for removal, restart your computer and scan it again to verify that fx.exe has been successfully removed. Here are the removal instructions in more detail:

  1. Download and install FreeFixer: http://www.freefixer.com/download.html
  2. Start FreeFixer and press the Start Scan button. The scan will finish in approximately five minutes.
    Screenshot of Start Scan button
  3. When the scan is finished, locate fx.exe in the scan result and tick the checkbox next to the fx.exe file. Do not check any other file for removal unless you are 100% sure you want to delete it. Tip: Press CTRL-F to open up FreeFixer's search dialog to quickly locate fx.exe in the scan result.
    Red arrow point on the unwanted file
    c:\downloads\fx.exe
  4. Scroll down to the bottom of the scan result and press the Fix button. FreeFixer will now delete the fx.exe file.
    Screenshot of Fix button
  5. Restart your computer.
  6. Start FreeFixer and scan your computer again. If fx.exe still remains in the scan result, proceed with the next step. If fx.exe is gone from the scan result you're done.
  7. If fx.exe still remains in the scan result, check its checkbox again in the scan result and click Fix.
  8. Restart your computer.
  9. Start FreeFixer and scan your computer again. Verify that fx.exe no longer appear in the scan result.
Please select the option that best describe your thoughts on the removal instructions given above








Free Questionnaires

Hashes [?]

PropertyValue
MD576862d181081fb863590b8ce683d5e9e
SHA256afdbf62d81e1c3c9c730a1f59799326a4969a88caae485607d35aa4f3b70d3fb

Error Messages

These are some of the error messages that can appear related to fx.exe:

fx.exe has encountered a problem and needs to close. We are sorry for the inconvenience.

fx.exe - Application Error. The instruction at "0xXXXXXXXX" referenced memory at "0xXXXXXXXX". The memory could not be "read/written". Click on OK to terminate the program.

fx.exe has stopped working.

End Program - fx.exe. This program is not responding.

fx.exe is not a valid Win32 application.

fx.exe - Application Error. The application failed to initialize properly (0xXXXXXXXX). Click OK to terminate the application.

What will you do with fx.exe?

To help other users, please let us know what you will do with fx.exe:



Comments

Please share with the other users what you think about this file. What does this file do? Is it legitimate or something that your computer is better without? Do you know how it was installed on your system? Did you install it yourself or did it come bundled with some other software? Is it running smoothly or do you get some error message? Any information that will help to document this file is welcome. Thank you for your contributions.

I'm reading all new comments so don't hesitate to post a question about the file. If I don't have the answer perhaps another user can help you.

No comments posted yet.

Leave a reply