Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    18-03-2021 22:40

General

  • Target

    Finanzierung.js

  • Size

    179KB

  • MD5

    0bc9b5360f88fc7228a93b15ac0a879a

  • SHA1

    f1dd1957da7d8fd715bdcd5ce3579c30bd727e88

  • SHA256

    262329afc152fa7205598cc6e67751a7b0634e65d2c15cbdb3d4da377a2408c1

  • SHA512

    a44bd6b7e4c57b7784c96f8f0176d000a330f413b96f3dfe9221368fce37e28814d5aa8034ccfa0918348cfb174269afe94037a14301b9836e11ad119160cc45

Malware Config

Signatures

  • WSHRAT

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

  • WSHRAT Payload 2 IoCs
  • Blocklisted process makes network request 42 IoCs
  • Drops startup file 2 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 2 IoCs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\Finanzierung.js
    1⤵
    • Blocklisted process makes network request
    • Drops startup file
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2008
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\Finanzierung.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      • Adds Run key to start application
      PID:872

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1912-6-0x000007FEF6850000-0x000007FEF6ACA000-memory.dmp

    Filesize

    2.5MB

  • memory/2008-4-0x00000000025D0000-0x00000000025D4000-memory.dmp

    Filesize

    16KB