General

  • Target

    d55e7652ad28060ef52b81942fa1d67240eb88e6f845b840c2759830cfb9942c.exe

  • Size

    854KB

  • Sample

    240919-b7rq9svbqd

  • MD5

    99853951945715da9e52111bd8182223

  • SHA1

    c5f3366413233a93cef17378a2f2f8bf5c8ea8b7

  • SHA256

    d55e7652ad28060ef52b81942fa1d67240eb88e6f845b840c2759830cfb9942c

  • SHA512

    7470cb82871338b9f315b38454d83eac4eef31623720dddbeaeb2285785b1c508320d559424c7a4f42bbd92d141464a79ea53cdf5f18bbef6737578944ccd384

  • SSDEEP

    12288:5qlll/cvZ6fYkKnSEi9TmeCITdw6yPvkrhXeSHE3q0/yJC3l+eQk1b/JH6:GcbksFYTmATdHyPcdXeSk6v28k1bJH

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Credentials

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

Targets

    • Target

      d55e7652ad28060ef52b81942fa1d67240eb88e6f845b840c2759830cfb9942c.exe

    • Size

      854KB

    • MD5

      99853951945715da9e52111bd8182223

    • SHA1

      c5f3366413233a93cef17378a2f2f8bf5c8ea8b7

    • SHA256

      d55e7652ad28060ef52b81942fa1d67240eb88e6f845b840c2759830cfb9942c

    • SHA512

      7470cb82871338b9f315b38454d83eac4eef31623720dddbeaeb2285785b1c508320d559424c7a4f42bbd92d141464a79ea53cdf5f18bbef6737578944ccd384

    • SSDEEP

      12288:5qlll/cvZ6fYkKnSEi9TmeCITdw6yPvkrhXeSHE3q0/yJC3l+eQk1b/JH6:GcbksFYTmATdHyPcdXeSk6v28k1bJH

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks