General

  • Target

    2b1c8e28590c81630fe3c284857734161139c1998cdd28e899cd1049bf5fff0d.exe

  • Size

    941KB

  • Sample

    241217-czzycaymfr

  • MD5

    42555dbdcc01fddb6e68265cc5704b5b

  • SHA1

    543e5153ad0bc094841e40330567ac8e9abb2d48

  • SHA256

    2b1c8e28590c81630fe3c284857734161139c1998cdd28e899cd1049bf5fff0d

  • SHA512

    027029b37e79edf8f5156e6d651c5aca4608a6ccad14eac33c32a0c92b4814f43c59ae1f46fba454d21af6d5de9fcbd8f6a6b99bd4db2c7d19915adf9416107f

  • SSDEEP

    12288:I2dhHhAIqUmkY/Tz9P+okSieKdNBJrC2lZNYheNhlK:5dhBArUmxrBP+BSGdC2lQeFK

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://beirutrest.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    9yXQ39wz(uL+

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    beirutrest.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    9yXQ39wz(uL+

Targets

    • Target

      2b1c8e28590c81630fe3c284857734161139c1998cdd28e899cd1049bf5fff0d.exe

    • Size

      941KB

    • MD5

      42555dbdcc01fddb6e68265cc5704b5b

    • SHA1

      543e5153ad0bc094841e40330567ac8e9abb2d48

    • SHA256

      2b1c8e28590c81630fe3c284857734161139c1998cdd28e899cd1049bf5fff0d

    • SHA512

      027029b37e79edf8f5156e6d651c5aca4608a6ccad14eac33c32a0c92b4814f43c59ae1f46fba454d21af6d5de9fcbd8f6a6b99bd4db2c7d19915adf9416107f

    • SSDEEP

      12288:I2dhHhAIqUmkY/Tz9P+okSieKdNBJrC2lZNYheNhlK:5dhBArUmxrBP+BSGdC2lQeFK

    • 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.

    • 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