Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/04/2023, 01:01

General

  • Target
    3beb5d47b8a2cf4b5dc8f442445fae8c26898add6427ea86c27c3af2797356bb.js
  • Size 2.7MB
  • Sample230411-bdbsysbb6w
  • SHA256 3beb5d47b8a2cf4b5dc8f442445fae8c26898add6427ea86c27c3af2797356bb
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • wshrat

C2
  • http://graceland.dns05.com:2048

Signatures

  • Vjw0rm

    Vjw0rm is a remote access trojan written in JavaScript.

  • WSHRAT

    WSHRAT is a variant of Houdini worm and has vbs and js variants.

  • Blocklisted process makes network request 55 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 5 IoCs
  • Adds Run key to start application 2 TTPs 8 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Script User-Agent 22 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\3beb5d47b8a2cf4b5dc8f442445fae8c26898add6427ea86c27c3af2797356bb.js
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:3812
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\QziJnhNNpM.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      PID:4348
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\3beb5d47b8a2cf4b5dc8f442445fae8c26898add6427ea86c27c3af2797356bb.js"
      2⤵
      • Blocklisted process makes network request
      • Checks computer location settings
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:916
      • C:\Windows\System32\wscript.exe
        "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\QziJnhNNpM.js"
        3⤵
        • Blocklisted process makes network request
        • Drops startup file
        PID:4328

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        3beb5d47b8a2cf4b5dc8f442445fae8c26898add6427ea86c27c3af2797356bb.js

        • Path C:\Users\Admin\AppData\Roaming\3beb5d47b8a2cf4b5dc8f442445fae8c26898add6427ea86c27c3af2797356bb.js
        • Size 2.7MB
        • SHA256 3beb5d47b8a2cf4b5dc8f442445fae8c26898add6427ea86c27c3af2797356bb
        • MD5 SHA1 SHA512 SSDEEP

        3beb5d47b8a2cf4b5dc8f442445fae8c26898add6427ea86c27c3af2797356bb.js

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3beb5d47b8a2cf4b5dc8f442445fae8c26898add6427ea86c27c3af2797356bb.js
        • Size 2.7MB
        • SHA256 3beb5d47b8a2cf4b5dc8f442445fae8c26898add6427ea86c27c3af2797356bb
        • MD5 SHA1 SHA512 SSDEEP

        3beb5d47b8a2cf4b5dc8f442445fae8c26898add6427ea86c27c3af2797356bb.js

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3beb5d47b8a2cf4b5dc8f442445fae8c26898add6427ea86c27c3af2797356bb.js
        • Size 2.7MB
        • SHA256 3beb5d47b8a2cf4b5dc8f442445fae8c26898add6427ea86c27c3af2797356bb
        • MD5 SHA1 SHA512 SSDEEP

        QziJnhNNpM.js

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\QziJnhNNpM.js
        • Size 346KB
        • SHA256 d97f4e5a8d586a62c824a0a351fa35084a22718cc958897d559625cabc067967
        • MD5 SHA1 SHA512 SSDEEP

        QziJnhNNpM.js

        • Path C:\Users\Admin\AppData\Roaming\QziJnhNNpM.js
        • Size 346KB
        • SHA256 d97f4e5a8d586a62c824a0a351fa35084a22718cc958897d559625cabc067967
        • MD5 SHA1 SHA512 SSDEEP

        QziJnhNNpM.js

        • Path C:\Users\Admin\AppData\Roaming\QziJnhNNpM.js
        • Size 346KB
        • SHA256 d97f4e5a8d586a62c824a0a351fa35084a22718cc958897d559625cabc067967
        • MD5 SHA1 SHA512 SSDEEP