General

  • Target
    Copia de pago.gz
  • Size 1.5MB
  • Sample220923-jm4t4ahear
  • SHA256 935032c463328efc58dd11f5edb092a06556fa6a194dcac8f3bb2bc0e8c49dbe
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    mail.waterchem.com.tr

  • Port

    587

  • Password

    ,A26dsH,[D)x

Extracted

Family
  • agenttesla

Credentials

Extracted

Family
  • wshrat

C2
  • http://goods.camdvr.org:2888

Targets

    • Target
      Copia de pago.exe
    • Size 1.7MB
    • SHA256 b61c01986b22368ac8981d54811a6c7c1355b6e0f40c51b5ceba65229989d7a3
    • MD5 SHA1 SHA512 SSDEEP
    • AgentTesla

      Agent Tesla is a remote access tool (RAT) written in visual basic.

    • WSHRAT

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

    • WSHRAT payload

    • Blocklisted process makes network request

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • 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