General

  • Target
    Akbank Hesap Özetiniz.exe
  • Size 484KB
  • Sample201109-an44gpaj32
  • SHA256 b36cdef1bf3b71c8edb27b1d2eabaa00b2df89f3a46bc9c727f4dbb6956fcddb
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    smtp.yandex.com

  • Port

    587

  • Password

    kroskofile

Targets

    • Target
      Akbank Hesap Özetiniz.exe
    • Size 484KB
    • SHA256 b36cdef1bf3b71c8edb27b1d2eabaa00b2df89f3a46bc9c727f4dbb6956fcddb
    • MD5 SHA1 SHA512
    • AgentTesla

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

    • CoreEntity .NET Packer

      A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

    • AgentTesla Payload

    • rezer0

      Detects ReZer0, a packer with multiple versions used in various campaigns.

    • 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 v6

Tasks