General

  • Target

    9802175dc78cef260413c05623704f267eaa8184d8d6bcb68e15e82de4ee696e.exe

  • Size

    905KB

  • Sample

    250111-e4519stpbs

  • MD5

    8fbffb8434e574ea1bb6865da7af4c8d

  • SHA1

    557bac80418049b3c97821a2b60bb3928211a644

  • SHA256

    9802175dc78cef260413c05623704f267eaa8184d8d6bcb68e15e82de4ee696e

  • SHA512

    63c897dca939e97e142b95d692b3ea22d46178cee470cafceaae797226ddeaec5d6ddbb06346c946700f1860ec4ede17a03c37e3357e4848e2dc936a192e0fa8

  • SSDEEP

    24576:1CIee0JW/voReSPECqUYIu6HzxY27/c913X39:IBexvoReSnJu6HzxY2DC1H39

Malware Config

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.ercolina-usa.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    nXe0M~WkW&nJ

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.ercolina-usa.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    nXe0M~WkW&nJ

Targets

    • Target

      9802175dc78cef260413c05623704f267eaa8184d8d6bcb68e15e82de4ee696e.exe

    • Size

      905KB

    • MD5

      8fbffb8434e574ea1bb6865da7af4c8d

    • SHA1

      557bac80418049b3c97821a2b60bb3928211a644

    • SHA256

      9802175dc78cef260413c05623704f267eaa8184d8d6bcb68e15e82de4ee696e

    • SHA512

      63c897dca939e97e142b95d692b3ea22d46178cee470cafceaae797226ddeaec5d6ddbb06346c946700f1860ec4ede17a03c37e3357e4848e2dc936a192e0fa8

    • SSDEEP

      24576:1CIee0JW/voReSPECqUYIu6HzxY27/c913X39:IBexvoReSnJu6HzxY2DC1H39

    • 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.

    • 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 v15

Tasks