Analysis

  • max time kernel
    145s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    14/05/2024, 15:28

General

  • Target
    cc10da7e2a5c074cc559ed0f19a4880ae171a44b0039a5d3caadfd326db714fc.js
  • Size 616KB
  • Sample240514-swe2rsce8x
  • SHA256 cc10da7e2a5c074cc559ed0f19a4880ae171a44b0039a5d3caadfd326db714fc
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • wshrat

C2
  • http://masterokrwh.duckdns.org:8426

Signatures

  • WSHRAT

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

  • Blocklisted process makes network request 28 IoCs
  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 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.

  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • Enumerates physical storage devices 1 TTPs

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

  • Script User-Agent 25 IoCs

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

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\cc10da7e2a5c074cc559ed0f19a4880ae171a44b0039a5d3caadfd326db714fc.js
    1⤵
    • Blocklisted process makes network request
    • Drops startup file
    • Adds Run key to start application
    PID:2752

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        cc10da7e2a5c074cc559ed0f19a4880ae171a44b0039a5d3caadfd326db714fc.js

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\cc10da7e2a5c074cc559ed0f19a4880ae171a44b0039a5d3caadfd326db714fc.js
        • Size 616KB
        • SHA256 cc10da7e2a5c074cc559ed0f19a4880ae171a44b0039a5d3caadfd326db714fc
        • MD5 SHA1 SHA512 SSDEEP