What is kpdf2wordshellext.dll?

kpdf2wordshellext.dll is part of WPS Office and developed by Zhuhai Kingsoft Office Software Co.,Ltd according to the kpdf2wordshellext.dll version information.

kpdf2wordshellext.dll's description is "pdf2words shellext"

kpdf2wordshellext.dll is digitally signed by Zhuhai Kingsoft Office Software Co., Ltd..

kpdf2wordshellext.dll is usually located in the 'c:\users\%USERNAME%\appdata\local\kingsoft\wps office\10.2.0.7635\office6\addons\kpdf2wordshellext\' folder.

None of the anti-virus scanners at VirusTotal reports anything malicious about kpdf2wordshellext.dll.

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 [?]

The following is the available information on kpdf2wordshellext.dll:

PropertyValue
Product nameWPS Office
Company nameZhuhai Kingsoft Office Software Co.,Ltd
File descriptionpdf2words shellext
Internal namekpdf2wordshellext
Original filenamekpdf2wordshellext.dll
Legal copyrightCopyright©1988-2019 Kingsoft Corporation. All rights reserved.
Product version10,2,0,7635
File version10,2,0,7635

Here's a screenshot of the file properties when displayed by Windows Explorer:

Product nameWPS Office
Company nameZhuhai Kingsoft Office Software Co.,..
File descriptionpdf2words shellext
Internal namekpdf2wordshellext
Original filenamekpdf2wordshellext.dll
Legal copyrightCopyright©1988-2019 Kingsoft Corpor..
Product version10,2,0,7635
File version10,2,0,7635

Digital signatures [?]

kpdf2wordshellext.dll has a valid digital signature.

PropertyValue
Signer nameZhuhai Kingsoft Office Software Co., Ltd.
Certificate issuer nameVeriSign Class 3 Code Signing 2010 CA
Certificate serial number60864463bbbc2e4e67d42771e4cbd9a5

VirusTotal report

None of the 64 anti-virus programs at VirusTotal detected the kpdf2wordshellext.dll file.

None of the 64 anti-virus programs detected the kpdf2wordshellext.dll file.

Sandbox Report

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

Summary

Successfully executed process in sandbox.

Summary

{
    "regkey_written": [
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\Wow6432Node\\CLSID\\{70239788-4DAE-49B8-9270-5D8614384B49}\\InprocServer32\\(Default)",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\AppID\\kpdf2wordshellext.DLL\\AppID",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\Wow6432Node\\CLSID\\{70239788-4DAE-49B8-9270-5D8614384B49}\\(Default)",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\TypeLib\\{9D73C06F-1C32-4829-AB52-DEAE6F2764D2}\\1.0\\HELPDIR\\(Default)",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\TypeLib\\{9D73C06F-1C32-4829-AB52-DEAE6F2764D2}\\1.0\\FLAGS\\(Default)",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\TypeLib\\{9D73C06F-1C32-4829-AB52-DEAE6F2764D2}\\1.0\\0\\win32\\(Default)",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\Wow6432Node\\CLSID\\{70239788-4DAE-49B8-9270-5D8614384B49}\\InprocServer32\\ThreadingModel",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\*\\shellex\\ContextMenuHandlers\\kpdf2wordshellext\\(Default)",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\AppID\\{168DC665-BFE9-4056-87BF-3EA865ADFAF3}\\(Default)",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\TypeLib\\{9D73C06F-1C32-4829-AB52-DEAE6F2764D2}\\1.0\\(Default)"
    ],
    "dll_loaded": [
        "ADVAPI32.dll",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\263d197d53f509e5481d74f1eb9421070b3f3c9006c96fd8bb7e22458168e2c8.bin.dll",
        "kernel32.dll"
    ],
    "file_opened": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\263d197d53f509e5481d74f1eb9421070b3f3c9006c96fd8bb7e22458168e2c8.bin.dll",
        "C:\\Windows\\Globalization\\Sorting\\sortdefault.nls"
    ],
    "regkey_opened": [
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\TypeLib\\{9D73C06F-1C32-4829-AB52-DEAE6F2764D2}\\1.0",
        "HKEY_CLASSES_ROOT\\.dll",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\TypeLib\\{9D73C06F-1C32-4829-AB52-DEAE6F2764D2}\\1.0\\0\\win32",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\TypeLib\\{9D73C06F-1C32-4829-AB52-DEAE6F2764D2}",
        "HKEY_CLASSES_ROOT\\dllfile",
        "HKEY_CLASSES_ROOT\\*",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\Wow6432Node\\CLSID\\{70239788-4DAE-49B8-9270-5D8614384B49}",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\dllfile\\AutoRegister",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLEAUT",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\*\\shellex\\ContextMenuHandlers\\kpdf2wordshellext",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\TypeLib\\{9D73C06F-1C32-4829-AB52-DEAE6F2764D2}\\1.0\\HELPDIR",
        "HKEY_CURRENT_USER\\TypeLib",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\*\\shellex",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\AppID\\kpdf2wordshellext.DLL",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\AppID\\{168DC665-BFE9-4056-87BF-3EA865ADFAF3}",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\*\\shellex\\ContextMenuHandlers",
        "HKEY_CLASSES_ROOT\\AppID",
        "HKEY_CLASSES_ROOT\\CLSID",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\Wow6432Node\\CLSID\\{70239788-4DAE-49B8-9270-5D8614384B49}\\InprocServer32",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\TypeLib\\{9D73C06F-1C32-4829-AB52-DEAE6F2764D2}\\1.0\\0",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\TypeLib\\{9D73C06F-1C32-4829-AB52-DEAE6F2764D2}\\1.0\\FLAGS"
    ],
    "file_read": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\263d197d53f509e5481d74f1eb9421070b3f3c9006c96fd8bb7e22458168e2c8.bin.dll"
    ],
    "regkey_read": [
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\TypeLib\\{9D73C06F-1C32-4829-AB52-DEAE6F2764D2}\\1.0\\(Default)",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\TypeLib\\{9D73C06F-1C32-4829-AB52-DEAE6F2764D2}\\1.0\\HELPDIR\\(Default)",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\TypeLib\\{9D73C06F-1C32-4829-AB52-DEAE6F2764D2}\\1.0\\FLAGS\\(Default)",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\.dll\\(Default)",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\TypeLib\\{9D73C06F-1C32-4829-AB52-DEAE6F2764D2}\\1.0\\0\\win32\\(Default)",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
    ]
}

Generic

[
    {
        "process_path": "C:\\Windows\\SysWOW64\\regsvr32.exe",
        "process_name": "regsvr32.exe",
        "pid": 2736,
        "summary": {
            "regkey_written": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\Wow6432Node\\CLSID\\{70239788-4DAE-49B8-9270-5D8614384B49}\\InprocServer32\\(Default)",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\AppID\\kpdf2wordshellext.DLL\\AppID",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\Wow6432Node\\CLSID\\{70239788-4DAE-49B8-9270-5D8614384B49}\\(Default)",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\TypeLib\\{9D73C06F-1C32-4829-AB52-DEAE6F2764D2}\\1.0\\HELPDIR\\(Default)",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\TypeLib\\{9D73C06F-1C32-4829-AB52-DEAE6F2764D2}\\1.0\\FLAGS\\(Default)",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\TypeLib\\{9D73C06F-1C32-4829-AB52-DEAE6F2764D2}\\1.0\\0\\win32\\(Default)",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\Wow6432Node\\CLSID\\{70239788-4DAE-49B8-9270-5D8614384B49}\\InprocServer32\\ThreadingModel",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\*\\shellex\\ContextMenuHandlers\\kpdf2wordshellext\\(Default)",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\AppID\\{168DC665-BFE9-4056-87BF-3EA865ADFAF3}\\(Default)",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\TypeLib\\{9D73C06F-1C32-4829-AB52-DEAE6F2764D2}\\1.0\\(Default)"
            ],
            "dll_loaded": [
                "ADVAPI32.dll",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\263d197d53f509e5481d74f1eb9421070b3f3c9006c96fd8bb7e22458168e2c8.bin.dll",
                "kernel32.dll"
            ],
            "file_opened": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\263d197d53f509e5481d74f1eb9421070b3f3c9006c96fd8bb7e22458168e2c8.bin.dll",
                "C:\\Windows\\Globalization\\Sorting\\sortdefault.nls"
            ],
            "regkey_opened": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\TypeLib\\{9D73C06F-1C32-4829-AB52-DEAE6F2764D2}\\1.0",
                "HKEY_CLASSES_ROOT\\.dll",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\TypeLib\\{9D73C06F-1C32-4829-AB52-DEAE6F2764D2}\\1.0\\0\\win32",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\TypeLib\\{9D73C06F-1C32-4829-AB52-DEAE6F2764D2}",
                "HKEY_CLASSES_ROOT\\dllfile",
                "HKEY_CLASSES_ROOT\\*",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\Wow6432Node\\CLSID\\{70239788-4DAE-49B8-9270-5D8614384B49}",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\dllfile\\AutoRegister",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLEAUT",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\*\\shellex\\ContextMenuHandlers\\kpdf2wordshellext",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\TypeLib\\{9D73C06F-1C32-4829-AB52-DEAE6F2764D2}\\1.0\\HELPDIR",
                "HKEY_CURRENT_USER\\TypeLib",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\*\\shellex",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\AppID\\kpdf2wordshellext.DLL",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\AppID\\{168DC665-BFE9-4056-87BF-3EA865ADFAF3}",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\*\\shellex\\ContextMenuHandlers",
                "HKEY_CLASSES_ROOT\\AppID",
                "HKEY_CLASSES_ROOT\\CLSID",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\Wow6432Node\\CLSID\\{70239788-4DAE-49B8-9270-5D8614384B49}\\InprocServer32",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\TypeLib\\{9D73C06F-1C32-4829-AB52-DEAE6F2764D2}\\1.0\\0",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\TypeLib\\{9D73C06F-1C32-4829-AB52-DEAE6F2764D2}\\1.0\\FLAGS"
            ],
            "file_read": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\263d197d53f509e5481d74f1eb9421070b3f3c9006c96fd8bb7e22458168e2c8.bin.dll"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\TypeLib\\{9D73C06F-1C32-4829-AB52-DEAE6F2764D2}\\1.0\\(Default)",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\TypeLib\\{9D73C06F-1C32-4829-AB52-DEAE6F2764D2}\\1.0\\HELPDIR\\(Default)",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\TypeLib\\{9D73C06F-1C32-4829-AB52-DEAE6F2764D2}\\1.0\\FLAGS\\(Default)",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\.dll\\(Default)",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\TypeLib\\{9D73C06F-1C32-4829-AB52-DEAE6F2764D2}\\1.0\\0\\win32\\(Default)",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
            ]
        },
        "first_seen": 1599681187.609375,
        "ppid": 2448
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1599681187.3125,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "E:\\rc_v10_i18n_201901_branch\\Build\\Release\\WPSOffice\\office6\\addons\\kpdf2wordshellext\\kpdf2wordshellext.pdb",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "has_pdb"
    },
    {
        "markcount": 2,
        "families": [],
        "description": "The file contains an unknown PE resource name possibly indicative of a packer",
        "severity": 1,
        "marks": [
            {
                "category": "resource name",
                "ioc": "REGISTRY",
                "type": "ioc",
                "description": null
            },
            {
                "category": "resource name",
                "ioc": "TYPELIB",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "pe_unknown_resource_name"
    },
    {
        "markcount": 1,
        "families": [],
        "description": "Allocates read-write-execute memory (usually to unpack itself)",
        "severity": 2,
        "marks": [
            {
                "call": {
                    "category": "process",
                    "status": 1,
                    "stacktrace": [],
                    "api": "NtProtectVirtualMemory",
                    "return_value": 0,
                    "arguments": {
                        "process_identifier": 2736,
                        "stack_dep_bypass": 0,
                        "stack_pivoted": 0,
                        "heap_dep_bypass": 0,
                        "length": 4096,
                        "protection": 64,
                        "process_handle": "0xffffffff",
                        "base_address": "0x74bc6000"
                    },
                    "time": 1599681187.875375,
                    "tid": 2504,
                    "flags": {
                        "protection": "PAGE_EXECUTE_READWRITE"
                    }
                },
                "pid": 2736,
                "type": "call",
                "cid": 11
            }
        ],
        "references": [],
        "name": "allocates_rwx"
    },
    {
        "markcount": 7,
        "families": [],
        "description": "Foreign language identified in PE resource",
        "severity": 2,
        "marks": [
            {
                "name": "REGISTRY",
                "language": "LANG_CHINESE",
                "offset": "0x00027318",
                "filetype": "ASCII text, with CRLF line terminators",
                "sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
                "type": "generic",
                "size": "0x0000018a"
            },
            {
                "name": "REGISTRY",
                "language": "LANG_CHINESE",
                "offset": "0x00027318",
                "filetype": "ASCII text, with CRLF line terminators",
                "sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
                "type": "generic",
                "size": "0x0000018a"
            },
            {
                "name": "TYPELIB",
                "language": "LANG_CHINESE",
                "offset": "0x000274a4",
                "filetype": "data",
                "sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
                "type": "generic",
                "size": "0x0000065c"
            },
            {
                "name": "RT_BITMAP",
                "language": "LANG_CHINESE",
                "offset": "0x00027e2c",
                "filetype": "GLS_BINARY_LSB_FIRST",
                "sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
                "type": "generic",
                "size": "0x0000032a"
            },
            {
                "name": "RT_BITMAP",
                "language": "LANG_CHINESE",
                "offset": "0x00027e2c",
                "filetype": "GLS_BINARY_LSB_FIRST",
                "sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
                "type": "generic",
                "size": "0x0000032a"
            },
            {
                "name": "RT_STRING",
                "language": "LANG_CHINESE",
                "offset": "0x0002819c",
                "filetype": "data",
                "sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
                "type": "generic",
                "size": "0x00000076"
            },
            {
                "name": "RT_STRING",
                "language": "LANG_CHINESE",
                "offset": "0x0002819c",
                "filetype": "data",
                "sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
                "type": "generic",
                "size": "0x00000076"
            }
        ],
        "references": [],
        "name": "origin_langid"
    }
]

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": 6.209319114685059,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5190,
            "time": 6.168241024017334,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5518,
            "time": 4.159510135650635,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5846,
            "time": 6.179925203323364,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6174,
            "time": 4.688113212585449,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6502,
            "time": 3.0620510578155518,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 6830,
            "time": 4.230787038803101,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 18678,
            "time": 4.211510181427002,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 22870,
            "time": 6.256295204162598,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "5253f1103a6d8a9a697fbc559518d43d71978b999cbc2f1d9b62c45221c5430a",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "9613ee950653da5d168d9535c3ffcd20c1b5f1a3b74bdb262747973497d57e6f",
    "irc": [],
    "https_ex": []
}

Screenshots

Screenshot from the sandboxScreenshot from the sandbox

Hashes [?]

PropertyValue
MD553ab682243666ecab7f564a8970475d3
SHA256263d197d53f509e5481d74f1eb9421070b3f3c9006c96fd8bb7e22458168e2c8

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Comments

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