Overview

overview

10

Static

static

1

1dd3bb7632...960.js

windows7-x64

10

1dd3bb7632...960.js

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/03/2024, 02:11

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    1dd3bb76323b4cef240b169318d78ba1a360574382fb2d9f42a1888fe3fc3960.js
  • Size 3.8MB
  • Sample240312-cmcmaafb64
  • SHA256 1dd3bb76323b4cef240b169318d78ba1a360574382fb2d9f42a1888fe3fc3960
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
vjw0rmwshratpersistencetrojanworm

Malware Config

Extracted

Family

  • wshrat

C2

  • http://46.183.223.73:7000

Signatures

  • Vjw0rm

    Vjw0rm is a remote access trojan written in JavaScript.

    trojanwormvjw0rm
  • WSHRAT

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

    trojanwshrat
  • Blocklisted process makes network request 52 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 4 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • Script User-Agent 27 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\1dd3bb76323b4cef240b169318d78ba1a360574382fb2d9f42a1888fe3fc3960.js
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:3248
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\KrxtdWzuVD.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      PID:2836
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\1dd3bb76323b4cef240b169318d78ba1a360574382fb2d9f42a1888fe3fc3960.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:3380
      • C:\Windows\System32\wscript.exe
        "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\KrxtdWzuVD.js"
        3⤵
        • Blocklisted process makes network request
        • Drops startup file
        PID:3120

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        1dd3bb76323b4cef240b169318d78ba1a360574382fb2d9f42a1888fe3fc3960.js
        • Path C:\Users\Admin\AppData\Roaming\1dd3bb76323b4cef240b169318d78ba1a360574382fb2d9f42a1888fe3fc3960.js
        • Size 3.8MB
        • SHA256 1dd3bb76323b4cef240b169318d78ba1a360574382fb2d9f42a1888fe3fc3960
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        KrxtdWzuVD.js
        • Path C:\Users\Admin\AppData\Roaming\KrxtdWzuVD.js
        • Size 346KB
        • SHA256 b6c75bec3bac9f66e932372b1646945b0277c45659fcd657f9c0a2f7da625088
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download