General

  • Target

    PO00211.zip

  • Size

    681KB

  • Sample

    240603-gwf4aaec2w

  • MD5

    45d494738f12d2ff09f3556f5112b569

  • SHA1

    497caa4a9053e5c5a343c63c40e73e11ed7ad644

  • SHA256

    433a35c820b1df227715b8aa6715c8a37b41bce74d95f49f72f5c0a980517257

  • SHA512

    b1fcb9af46e5d43994af085a100dfac405b6e4c53fb486c0db8329dfc6b47fcdabb6f2b4b51222a68cbea4d4b02567168849e4c40725a83841df75db233e4102

  • SSDEEP

    12288:fBQAfPLRcBi9osdZeT4D2ewGQFjmvYe9qFedbEB8lzBZb4ztgiOsT9:fZpVZekf/QFjmv1ldwB+7YdX9

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.formosabag.co.id
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    @2022exim02^^**

Targets

    • Target

      PO00211.exe

    • Size

      865KB

    • MD5

      c0b9ff48615c0d13d454091b13eff54a

    • SHA1

      0c7ca395f8a439cfd6001d6d6b9224ac23f82c88

    • SHA256

      0d89f9c07d7604f3ca0f4949f17613d6b09a8445b8459e4fd57f0e10fe465ed0

    • SHA512

      606a3433bd0ef6b8efeed964b057177d163273fbf979c8797bbe6bc860cec74d0134a637262d9c880ccfc58e8cc5ad4887c96abc2b31e2c7467b536b2a51b8ba

    • SSDEEP

      24576:1MYedeaN5icFJHe0V/QFLmvl7V8x2Y2JgEUo:1MYe5N5icFdZZvl7ix2Y2JZ

    • 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.

    • 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