Analysis

  • max time kernel
    143s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-02-2024 08:03

General

  • Target

    Request For Quotation.js

  • Size

    940KB

  • MD5

    78252a15f51c83f53b649437cfb4dd89

  • SHA1

    199691ba02706c385773a874fe6a6f6776d336dc

  • SHA256

    0677778651e6e33725cf6517a2bfa1fba1c7ca0bccde26b9c1408cd95b1741f9

  • SHA512

    87217894c79e6e17ef7c40ae3e8ab404fe5a7fc55028763bce93388cb9cc8c778536061ac97ddbc51bb5424a00f55d7362480706c04bfc7ceaa18fc70957c264

  • SSDEEP

    6144:XQsxuHg3waI+262g6Wl087udlFgnSTlWViJo4Q5SSAjMDbriPufIKeMuRg3B6oWM:gD4

Score
10/10

Malware Config

Extracted

Family

wshrat

C2

http://harold.jetos.com:3609

Signatures

  • WSHRAT

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

  • Blocklisted process makes network request 13 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 2 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).

  • Script User-Agent 12 IoCs

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

  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe "C:\Users\Admin\AppData\Local\Temp\Request For Quotation.js"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Suspicious use of WriteProcessMemory
    PID:1872
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\Request For Quotation.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      PID:3412

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Request For Quotation.js

    Filesize

    354KB

    MD5

    3c21048255e24e51963acd408b04c38a

    SHA1

    ca198e164e7e9ccd81318e15db29056207a4dc09

    SHA256

    2218d1f0ee7046e8f25190976e8da8d811bc2e39f68416560e2855c8af352ab0

    SHA512

    504b13fca5802db09014d74271107c68a96db9a3d044a2680fd3a53608f16d701a839e2bc8c21d1970a3dbcb057ee2fe2d2df869f87da0a25770c2cc23a2a390

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Request For Quotation.js

    Filesize

    362KB

    MD5

    5aef5ee75c2109ff7e3867ec4c33edde

    SHA1

    292fe77beb3480693e662f16c7ced38a58cabfc7

    SHA256

    439f5dc203b637aa17246538c68cb3977ab22bd825a1380e0aeda7fcf5acc225

    SHA512

    6843f48f71c678cc72091885c5856ef4dd7d081fbbc49e57b0b5ebb6c46bbae5c1cffbd1e19c8777b5a12511eb96d76dce4897570b5493f79786742e65e0fd25

  • C:\Users\Admin\AppData\Roaming\Request For Quotation.js

    Filesize

    644KB

    MD5

    2167165cb5ccb87e4d228e8b43ed06d9

    SHA1

    da690f10eb4b0c6134e83a6a3b5f3a2c21f348d7

    SHA256

    5c2ead52080306f25a45f7af4921bee8e3561914f16d23d97ab9ef44db667591

    SHA512

    81313c943b192123aa770a249e9ec31c6b8df37f3de9dcd93e387f127a5e3393a6b08780ce5ea799cf7bc9a47f43fa22b743927f38d67ddec40ec6adb5ddb289