General

  • Target

    4f86439a425e3980a2c4c6a7133161f441d3c8338d226eff67b84b180d659ec7.exe

  • Size

    790KB

  • Sample

    240213-czyehsba2s

  • MD5

    4a8534b3579fc2e0b3903dec85a38f12

  • SHA1

    2506a0a6a2303e53e400de74c21474440e563e3b

  • SHA256

    4f86439a425e3980a2c4c6a7133161f441d3c8338d226eff67b84b180d659ec7

  • SHA512

    08f3c76cb933735f78fe248675919d1e4a0be54030c3d810f737a2d9d8317b378656508d13e2a1b7319a212fa29a0309b85aa23f018fd419e2dceb518821a697

  • SSDEEP

    24576:fs3ZPyRt9g4hxWR1HJSKSta5V0CJxJUinq3:fsJ6RtugxWR1H4c5XJUinq

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.elektronikkutu.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    9U:e3@wpS3:U7h_V

Targets

    • Target

      4f86439a425e3980a2c4c6a7133161f441d3c8338d226eff67b84b180d659ec7.exe

    • Size

      790KB

    • MD5

      4a8534b3579fc2e0b3903dec85a38f12

    • SHA1

      2506a0a6a2303e53e400de74c21474440e563e3b

    • SHA256

      4f86439a425e3980a2c4c6a7133161f441d3c8338d226eff67b84b180d659ec7

    • SHA512

      08f3c76cb933735f78fe248675919d1e4a0be54030c3d810f737a2d9d8317b378656508d13e2a1b7319a212fa29a0309b85aa23f018fd419e2dceb518821a697

    • SSDEEP

      24576:fs3ZPyRt9g4hxWR1HJSKSta5V0CJxJUinq3:fsJ6RtugxWR1H4c5XJUinq

    • AgentTesla

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

    • Detect packed .NET executables. Mostly AgentTeslaV4.

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

    • Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion

    • Detects executables referencing Windows vault credential objects. Observed in infostealers

    • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

    • Detects executables referencing many email and collaboration clients. Observed in information stealers

    • Detects executables referencing many file transfer clients. Observed in information stealers

    • Checks computer location settings

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

    • 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