General

  • Target
    Purchase Order-6630T.exe
  • Size 1.3MB
  • Sample221005-k5llxaeafk
  • SHA256 57ded1368d1a4e13a6220b144f2b78cc91e915fccd66a9193bc2d9fe8d758432
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • snakekeylogger

Credentials

Extracted

Family
  • wshrat

C2
  • http://rze6.sytes.net:4000

Targets

    • Target
      Purchase Order-6630T.exe
    • Size 1.3MB
    • SHA256 57ded1368d1a4e13a6220b144f2b78cc91e915fccd66a9193bc2d9fe8d758432
    • MD5 SHA1 SHA512 SSDEEP
    • Snake Keylogger

      Keylogger and Infostealer first seen in November 2020.

    • Snake Keylogger payload

    • WSHRAT

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

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Drops startup file

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook profiles

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks