Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    03-05-2024 05:07

General

  • Target

    60413aef500d578efcf2ce776c02d9d6b29ec0d1070ea7d758b6c5a3544e7928.js

  • Size

    1.1MB

  • MD5

    45ece63fd62550c00c23129d45acc6ae

  • SHA1

    428b9734401dbb1c71cbe84894be3ac54f7f8f0f

  • SHA256

    60413aef500d578efcf2ce776c02d9d6b29ec0d1070ea7d758b6c5a3544e7928

  • SHA512

    35a97ce1eb9765d3f306b3478e6607889aa5130239cd85a351c81c94caf964a765db5f455c7777641996fb7f422980689be63ef3593a68c79ee275d2a7dc3935

  • SSDEEP

    24576:xnM9UoHmc6UHyDnk8VYJH2GLvXHLmhWeWJxuLiYZZNJIMmXL/MbiHmKA63OuQFfP:xnmTGCS48ZorOWe6jeZNJIpXjMbiHmKk

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 30 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 29 IoCs

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

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\60413aef500d578efcf2ce776c02d9d6b29ec0d1070ea7d758b6c5a3544e7928.js
    1⤵
    • Blocklisted process makes network request
    • Drops startup file
    • Adds Run key to start application
    PID:112

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\60413aef500d578efcf2ce776c02d9d6b29ec0d1070ea7d758b6c5a3544e7928.js

    Filesize

    1.1MB

    MD5

    45ece63fd62550c00c23129d45acc6ae

    SHA1

    428b9734401dbb1c71cbe84894be3ac54f7f8f0f

    SHA256

    60413aef500d578efcf2ce776c02d9d6b29ec0d1070ea7d758b6c5a3544e7928

    SHA512

    35a97ce1eb9765d3f306b3478e6607889aa5130239cd85a351c81c94caf964a765db5f455c7777641996fb7f422980689be63ef3593a68c79ee275d2a7dc3935