Analysis

  • max time kernel
    4264953s
  • max time network
    5s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    17/01/2022, 10:28

General

  • Target

    Request For Quotation.js

  • Size

    446KB

  • MD5

    0afce07b69b1f5e065f36c00b44802b0

  • SHA1

    412b7f715e1c325330d51d5eeae0f166e8a0497d

  • SHA256

    9608362f4713abe6fe636520a1f55218350d6ff78794aa432d45eef1c95e04e7

  • SHA512

    3d1d6099cfc633415f27a08a378e3b96c20e6a193034724f943c5f19807a3a99ff7fcf22190b76ed8b2a6713204c28cb2442c22dfdb13ba9499c2e75da634040

Malware Config

Signatures

  • Vjw0rm

    Vjw0rm is a remote access trojan written in JavaScript.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe "C:\Users\Admin\AppData\Local\Temp\Request For Quotation.js"
    1⤵
    • Checks computer location settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1888
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\JRzXjjDHaa.js"
      2⤵
      • Adds Run key to start application
      PID:2860
    • C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe
      "C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\nevdkkoe.txt"
      2⤵
        PID:2996

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/2996-134-0x0000000003120000-0x0000000003390000-memory.dmp

            Filesize

            2.4MB