General

  • Target
    shippment invoice_6543223456.PDF.exe
  • Size 691KB
  • Sample251014-c8c5yadp81
  • SHA256 c77df447c372e2aa22b4fb528775f2ac2be22e0595f02ceb3c40c9944cf689d4
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    ftp

  • Host

    ftp://ftp.fosna.net

  • Port

    21

  • Password

    (=8fPSH$KO_!

Targets

    • Target
      shippment invoice_6543223456.PDF.exe
    • Size 691KB
    • SHA256 c77df447c372e2aa22b4fb528775f2ac2be22e0595f02ceb3c40c9944cf689d4
    • MD5 SHA1 SHA512 SSDEEP
    • AgentTesla

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

    • Agenttesla family

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

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

    • 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.

    • 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 v16

Tasks