General

  • Target

    0aa49257b08dd56e17e93004ed283074b0a7e7c86c104ec6f4d01d0e69f9b6f2.rar

  • Size

    590KB

  • Sample

    240914-bgfajsyern

  • MD5

    410ca33c5536a7fc3593cd8b8be20b98

  • SHA1

    5494044130980d52e5309ca298c4985ef1aab9e9

  • SHA256

    0aa49257b08dd56e17e93004ed283074b0a7e7c86c104ec6f4d01d0e69f9b6f2

  • SHA512

    2c05b176be7841c03461297176bf0b9f654cdc357cf93a6e1437b0ee3c79ee52acee85c0c81476ba19daea722acd15c4ea2711b3e8ba5a6711efd7d9bb51096c

  • SSDEEP

    12288:XYb+m4Isui/R8zzfBdM/okhdcMHk0szstV3Ne+Zfp/QRgI:XYb+m4+i/RkzBqP3RsQtV9xVKWI

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://cash4cars.nz
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    -[([pqM~nGA4

Targets

    • Target

      MV TBN CALL PORT FOR LOADING COAL_pdf.exe

    • Size

      641KB

    • MD5

      2546f92a54b6f32407cb0d86c91b330c

    • SHA1

      3b2eeddcae26a3efbb431fc4863e4765ff556392

    • SHA256

      c4152d490edfcc1620c4579bc9e9455b8cb71cb9efecb38140a22385ea95a9ce

    • SHA512

      df3cdd886e0ac5c315e47b352030313d189d51d4d959977421e443cf6fffd02df108319b5b277c202567caa86327803e1aaf9830d89c3bbc8ee7015703f28ea4

    • SSDEEP

      12288:Tbx119VXiwDIgVFyDu7iKXy2pGL3v5GzD1uIOUgQX14JE9xje50VwXH:BD95lGb5GzDL1pg06

    • AgentTesla

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

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • 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 WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • 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.

    • 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 v15

Tasks