Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-05-2024 14:06

General

  • Target

    3d3b93e744a9fc154a70b6a6b709be2806598abb2b00db8e51faa55f961f3076.js

  • Size

    262KB

  • MD5

    61003ace63f39ed1cc39a22cb924e6b1

  • SHA1

    914548e77023a990b0e79e1cea9ce25991e8116e

  • SHA256

    3d3b93e744a9fc154a70b6a6b709be2806598abb2b00db8e51faa55f961f3076

  • SHA512

    e9d25955a7a9700b996dc435e23505ddb772290bf6370a0ccd122a34fc6c21c935b6a4dfc60fd2d2d00e74e6edb0f6f49d9df960a2ac3b7155a98d908560ba53

  • SSDEEP

    96:GM969Xx6VdE6ruU6S+4SWp9uS+V6fXuSEFYcnhVM3/DyBCODI99PRdN1QNLq9Iu/:gWGcucNHw1c5UEWzC423S68XC

Malware Config

Extracted

Family

wshrat

C2

http://chongmei33.publicvm.com:7045

Signatures

  • WSHRAT

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

  • Blocklisted process makes network request 24 IoCs
  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • 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 24 IoCs

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

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\3d3b93e744a9fc154a70b6a6b709be2806598abb2b00db8e51faa55f961f3076.js
    1⤵
    • Blocklisted process makes network request
    • Drops startup file
    • Adds Run key to start application
    PID:4168

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3d3b93e744a9fc154a70b6a6b709be2806598abb2b00db8e51faa55f961f3076.js

    Filesize

    262KB

    MD5

    61003ace63f39ed1cc39a22cb924e6b1

    SHA1

    914548e77023a990b0e79e1cea9ce25991e8116e

    SHA256

    3d3b93e744a9fc154a70b6a6b709be2806598abb2b00db8e51faa55f961f3076

    SHA512

    e9d25955a7a9700b996dc435e23505ddb772290bf6370a0ccd122a34fc6c21c935b6a4dfc60fd2d2d00e74e6edb0f6f49d9df960a2ac3b7155a98d908560ba53