General

  • Target

    b80b5ae75cc2fbd9c0009b85aae87fe0e57b031c3b799b07b23941de2f8dfb11

  • Size

    764KB

  • Sample

    240528-b2xqbsbb35

  • MD5

    73fe7dcad838afe2e670b4c0f1e5e838

  • SHA1

    94fccd5c9c345e4452321833bec5413213606bce

  • SHA256

    b80b5ae75cc2fbd9c0009b85aae87fe0e57b031c3b799b07b23941de2f8dfb11

  • SHA512

    9b89fdb299a3f1dce6074e9bdde2d2dae5d617409d99aff1829d1ffd36975d1f7c14fc931721c146eea79264bd1af8fe8a33c7046b36f38d7ef9dd8c446bb6df

  • SSDEEP

    12288:+0LTyvK/lXkS/q/jX8O7+hbsJZ7juIEsE/KsPPJamhWR0V4vxChYDwr0sos+Op:+0yiXdqKsHKIEsEyO4Co0aM1/+O

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Brillium360@@

Targets

    • Target

      b80b5ae75cc2fbd9c0009b85aae87fe0e57b031c3b799b07b23941de2f8dfb11

    • Size

      764KB

    • MD5

      73fe7dcad838afe2e670b4c0f1e5e838

    • SHA1

      94fccd5c9c345e4452321833bec5413213606bce

    • SHA256

      b80b5ae75cc2fbd9c0009b85aae87fe0e57b031c3b799b07b23941de2f8dfb11

    • SHA512

      9b89fdb299a3f1dce6074e9bdde2d2dae5d617409d99aff1829d1ffd36975d1f7c14fc931721c146eea79264bd1af8fe8a33c7046b36f38d7ef9dd8c446bb6df

    • SSDEEP

      12288:+0LTyvK/lXkS/q/jX8O7+hbsJZ7juIEsE/KsPPJamhWR0V4vxChYDwr0sos+Op:+0yiXdqKsHKIEsEyO4Co0aM1/+O

    • AgentTesla

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

    • 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