General

  • Target

    HALKBANK.exe

  • Size

    1.9MB

  • Sample

    200707-eaq9jcf4d6

  • MD5

    50c28ec3b4d36ef6d94c9ee44669d5c6

  • SHA1

    e1fa59975732f319ee3543721946c9bdbddcdd7d

  • SHA256

    8424b5a86327251f934d4e4526de3d48b942c0953a866f84de2d7bb19a5fbc04

  • SHA512

    f6bd95acce6103f8111f3b510c64de731733b0e5ccde6313ba55193667d22a0cc5f076672b25ea30fc58e50e164ab8149541dd0a79ece6e26c54d27272b6cdc1

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.bunsadokum.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    posta38Bunsa

Targets

    • Target

      HALKBANK.exe

    • Size

      1.9MB

    • MD5

      50c28ec3b4d36ef6d94c9ee44669d5c6

    • SHA1

      e1fa59975732f319ee3543721946c9bdbddcdd7d

    • SHA256

      8424b5a86327251f934d4e4526de3d48b942c0953a866f84de2d7bb19a5fbc04

    • SHA512

      f6bd95acce6103f8111f3b510c64de731733b0e5ccde6313ba55193667d22a0cc5f076672b25ea30fc58e50e164ab8149541dd0a79ece6e26c54d27272b6cdc1

    • AgentTesla

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

    • AgentTesla Payload

    • Executes dropped EXE

    • Loads dropped DLL

    • 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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks