General

  • Target

    PO - 70155781 pdf.exe

  • Size

    705KB

  • Sample

    250422-hrmwpssjw3

  • MD5

    6439f75877545c2d01029955439a11f2

  • SHA1

    4cab75ac1a63ff6d955aa0e0af0a3cce293dbea6

  • SHA256

    f0695b975e0e13218720fb19aeead0d365d7dc99ac0d32d8b0227a3224cf56f5

  • SHA512

    1b492ca9ffde7ea46e518689826f5f6205eb271de4478340c36d3fa19c5066920632e4fad45c51009ada743add84c25b38f31f5ec4448e7229af76ba245b85a7

  • SSDEEP

    12288:tMocjzKHoyD9Qu4IZVJ+X97zNqBjl1VFBqhMQlMuDmi0JVbDAt2cO+//05F6i:tMT+H7QGz0vNqBjl1V/GxOLi0JVPAtH2

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    w#chNV#1

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      PO - 70155781 pdf.exe

    • Size

      705KB

    • MD5

      6439f75877545c2d01029955439a11f2

    • SHA1

      4cab75ac1a63ff6d955aa0e0af0a3cce293dbea6

    • SHA256

      f0695b975e0e13218720fb19aeead0d365d7dc99ac0d32d8b0227a3224cf56f5

    • SHA512

      1b492ca9ffde7ea46e518689826f5f6205eb271de4478340c36d3fa19c5066920632e4fad45c51009ada743add84c25b38f31f5ec4448e7229af76ba245b85a7

    • SSDEEP

      12288:tMocjzKHoyD9Qu4IZVJ+X97zNqBjl1VFBqhMQlMuDmi0JVbDAt2cO+//05F6i:tMT+H7QGz0vNqBjl1V/GxOLi0JVPAtH2

    • 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.

    • Executes dropped EXE

    • 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.

    • 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 v16

Tasks