Overview

overview

10

Static

static

cdccee46e5...c1f.js

windows7-x64

10

cdccee46e5...c1f.js

windows10-2004-x64

10

Analysis

  • max time kernel
    145s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/10/2022, 03:23

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General

  • Target
    cdccee46e5ffe96721e95934c1613ed849e2abbdbab661de99afdd08e2d7dc1f.js
  • Size 267KB
  • Sample221025-dxltdabdf6
  • SHA256 cdccee46e5ffe96721e95934c1613ed849e2abbdbab661de99afdd08e2d7dc1f
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
vjw0rmwshratpersistencetrojanworm

Malware Config

Extracted

Family

  • wshrat

C2

  • http://huntebez.xyz:1702

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 43 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 4 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
    persistence
  • 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 26 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\cdccee46e5ffe96721e95934c1613ed849e2abbdbab661de99afdd08e2d7dc1f.js
    1⤵
    • Blocklisted process makes network request
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2740
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\acBPHhbFSd.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      PID:788

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        acBPHhbFSd.js
        • Path C:\Users\Admin\AppData\Roaming\acBPHhbFSd.js
        • Size 9KB
        • SHA256 7988e077e12f2a9b4e83cb646c89dc1a42448f60096fd285f3af61a363a3ded4
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download