Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/09/2022, 09:56

General

  • Target
    Order Confirmation_OV220001820_29 0922.js
  • Size 47KB
  • Sample220929-lycabsadc3
  • SHA256 085914ae6981487ee2ad184426717a2707df75e15e6b8cf48e5c2ff0186edcbb
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Vjw0rm

    Vjw0rm is a remote access trojan written in JavaScript.

  • Blocklisted process makes network request 33 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
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe "C:\Users\Admin\AppData\Local\Temp\Order Confirmation_OV220001820_29 0922.js"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2960
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\mrlgZfWIwh.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      PID:4168
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\Order Confirmation_OV220001820_29 0922.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:3092
      • C:\Windows\System32\wscript.exe
        "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\mrlgZfWIwh.js"
        3⤵
        • Blocklisted process makes network request
        • Drops startup file
        PID:4140

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        Order Confirmation_OV220001820_29 0922.js

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Order Confirmation_OV220001820_29 0922.js
        • Size 47KB
        • SHA256 085914ae6981487ee2ad184426717a2707df75e15e6b8cf48e5c2ff0186edcbb
        • MD5 SHA1 SHA512 SSDEEP

        mrlgZfWIwh.js

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\mrlgZfWIwh.js
        • Size 8KB
        • SHA256 6b3cfb721c0af8d0b577083aee2c40b8c4627716b1cb46d600c97e90a8de1f50
        • MD5 SHA1 SHA512 SSDEEP

        Order Confirmation_OV220001820_29 0922.js

        • Path C:\Users\Admin\AppData\Roaming\Order Confirmation_OV220001820_29 0922.js
        • Size 47KB
        • SHA256 085914ae6981487ee2ad184426717a2707df75e15e6b8cf48e5c2ff0186edcbb
        • MD5 SHA1 SHA512 SSDEEP

        mrlgZfWIwh.js

        • Path C:\Users\Admin\AppData\Roaming\mrlgZfWIwh.js
        • Size 8KB
        • SHA256 6b3cfb721c0af8d0b577083aee2c40b8c4627716b1cb46d600c97e90a8de1f50
        • MD5 SHA1 SHA512 SSDEEP

        mrlgZfWIwh.js

        • Path C:\Users\Admin\AppData\Roaming\mrlgZfWIwh.js
        • Size 8KB
        • SHA256 6b3cfb721c0af8d0b577083aee2c40b8c4627716b1cb46d600c97e90a8de1f50
        • MD5 SHA1 SHA512 SSDEEP