What is wow64_microsoft-windows-crypt32-dll_31bf3856ad364e35_10.0.19041.21_none_5d87edc64039afca_crypt32.dll_9c3ccf73?

wow64_microsoft-windows-crypt32-dll_31bf3856ad364e35_10.0.19041.21_none_5d87edc64039afca_crypt32.dll_9c3ccf73 is part of Microsoft® Windows® Operating System and developed by Microsoft Corporation according to the wow64_microsoft-windows-crypt32-dll_31bf3856ad364e35_10.0.19041.21_none_5d87edc64039afca_crypt32.dll_9c3ccf73 version information.

wow64_microsoft-windows-crypt32-dll_31bf3856ad364e35_10.0.19041.21_none_5d87edc64039afca_crypt32.dll_9c3ccf73's description is "Crypto API32"

wow64_microsoft-windows-crypt32-dll_31bf3856ad364e35_10.0.19041.21_none_5d87edc64039afca_crypt32.dll_9c3ccf73 is digitally signed by Microsoft Windows.

wow64_microsoft-windows-crypt32-dll_31bf3856ad364e35_10.0.19041.21_none_5d87edc64039afca_crypt32.dll_9c3ccf73 is usually located in the 'c:\Windows\WinSxS\Backup\' folder.

None of the anti-virus scanners at VirusTotal reports anything malicious about wow64_microsoft-windows-crypt32-dll_31bf3856ad364e35_10.0.19041.21_none_5d87edc64039afca_crypt32.dll_9c3ccf73.

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.

VirusTotal report

None of the 72 anti-virus programs at VirusTotal detected the wow64_microsoft-windows-crypt32-dll_31bf3856ad364e35_10.0.19041.21_none_5d87edc64039afca_crypt32.dll_9c3ccf73 file.

Sandbox Report

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

Summary

Successfully executed process in sandbox.

Summary

{
    "file_opened": [
        "C:\\Windows\\SysWOW64\\en-US\\KERNELBASE.dll.mui"
    ],
    "file_exists": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\89b846b844e1273f840f56dff1fc0a9e463a691c11b5726d012026f83d8368f1.bin.dll.manifest",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\89b846b844e1273f840f56dff1fc0a9e463a691c11b5726d012026f83d8368f1.bin.dll"
    ],
    "regkey_read": [
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Windows\\Windows Error Reporting\\WMR\\Disable",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
    ],
    "dll_loaded": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\89b846b844e1273f840f56dff1fc0a9e463a691c11b5726d012026f83d8368f1.bin.dll"
    ]
}

Generic

[
    {
        "process_path": "C:\\Windows\\SysWOW64\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2732,
        "summary": {
            "file_opened": [
                "C:\\Windows\\SysWOW64\\en-US\\KERNELBASE.dll.mui"
            ],
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\89b846b844e1273f840f56dff1fc0a9e463a691c11b5726d012026f83d8368f1.bin.dll.manifest",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\89b846b844e1273f840f56dff1fc0a9e463a691c11b5726d012026f83d8368f1.bin.dll"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Windows\\Windows Error Reporting\\WMR\\Disable",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
            ],
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\89b846b844e1273f840f56dff1fc0a9e463a691c11b5726d012026f83d8368f1.bin.dll"
            ]
        },
        "first_seen": 1593071590.5625,
        "ppid": 2892
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1593071590.3125,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "crypt32.pdb",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "has_pdb"
    },
    {
        "markcount": 1,
        "families": [],
        "description": "The executable contains unknown PE section names indicative of a packer (could be a false positive)",
        "severity": 1,
        "marks": [
            {
                "category": "section",
                "ioc": ".didat",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "pe_features"
    },
    {
        "markcount": 1,
        "families": [],
        "description": "The file contains an unknown PE resource name possibly indicative of a packer",
        "severity": 1,
        "marks": [
            {
                "category": "resource name",
                "ioc": "MUI",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "pe_unknown_resource_name"
    }
]

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": 662,
            "time": 6.175886154174805,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5190,
            "time": 6.109769105911255,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5518,
            "time": 4.140780210494995,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5846,
            "time": 6.11822509765625,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6174,
            "time": 4.647464036941528,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6502,
            "time": 3.0119240283966064,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 6830,
            "time": 4.703619003295898,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 15512,
            "time": 4.194029092788696,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 21800,
            "time": 6.238440036773682,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "1c00ab6750e2a5a07e4568c0f0ecf40eb04b3ba616d5f7fbbd92eb19bb43df03",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "1dd1a50fd46c8c8fb53f204dfe69339f984058e194538f419a66e89ac41f066f",
    "irc": [],
    "https_ex": []
}

Screenshots

Malware or legitimate?

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