Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    02-05-2024 21:11

General

  • Target

    Update on Payment.js

  • Size

    615KB

  • MD5

    8dcc2c7236870e00097d09cadc066b03

  • SHA1

    2c9868c25000e2d7801dc9fd431d6ba99b694e16

  • SHA256

    d968cf117419570bc67f57a2be52a648d2253346fd60489c06435fdbe518c61e

  • SHA512

    918ee5a3a83fcbc098b294077c0fd5888ccc05e0785ef749c788be763ddd2750fe6daa67904b9de2d77cdb9dfab4dc7b65db25e1c18ab5d33f969e81fdae9cf5

  • SSDEEP

    12288:fYeIrWr/qRigAyX/kngXFbjTLvaH28nZH19Iimg0VtxWvTbxzOObcizI/mofdEMp:fYeIrWr/qRigAyX/kngXFbjTLvaH28ng

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 19 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 18 IoCs

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

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe "C:\Users\Admin\AppData\Local\Temp\Update on Payment.js"
    1⤵
    • Blocklisted process makes network request
    • Drops startup file
    • Adds Run key to start application
    PID:2700

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Update on Payment.js

    Filesize

    615KB

    MD5

    8dcc2c7236870e00097d09cadc066b03

    SHA1

    2c9868c25000e2d7801dc9fd431d6ba99b694e16

    SHA256

    d968cf117419570bc67f57a2be52a648d2253346fd60489c06435fdbe518c61e

    SHA512

    918ee5a3a83fcbc098b294077c0fd5888ccc05e0785ef749c788be763ddd2750fe6daa67904b9de2d77cdb9dfab4dc7b65db25e1c18ab5d33f969e81fdae9cf5