General

  • Target
    subCY_Wsinvoice.js
  • Size 258KB
  • Sample221019-ntxftafdb5
  • SHA256 b7966ac2c98ec6f85220d42a378a55081245b69ef730e5b6845468d5b66edeaa
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • wshrat

C2
  • http://213.226.123.91:1702

Targets

    • Target
      subCY_Wsinvoice.js
    • Size 258KB
    • SHA256 b7966ac2c98ec6f85220d42a378a55081245b69ef730e5b6845468d5b66edeaa
    • MD5 SHA1 SHA512 SSDEEP
    • Vjw0rm

      Vjw0rm is a remote access trojan written in JavaScript.

    • WSHRAT

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

    • Blocklisted process makes network request

    • Executes dropped EXE

    • Checks computer location settings

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

    • Drops startup file

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

MITRE ATT&CK Enterprise v6

Tasks