General

  • Target
    0b41cacd4b074eeb13a5d1044b4900840d0e5e4a54dd65e7566e28727fdcfa92.rar
  • Size 701KB
  • Sample240613-becfwasbjp
  • SHA256 0b41cacd4b074eeb13a5d1044b4900840d0e5e4a54dd65e7566e28727fdcfa92
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials

Extracted

Credentials
  • Protocol

    smtp

  • Host

    mail.groupmt.vn

  • Port

    587

  • Password

    4j37SF2n8e

Targets

    • Target
      PO#55666355252367578-pdf.exe
    • Size 854KB
    • SHA256 95434e14f7937ffe2702c3fd491f07957188cc1f09b5b26bf7161ece6a2e3744
    • MD5 SHA1 SHA512 SSDEEP
    • AgentTesla

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

    • Detect packed .NET executables. Mostly AgentTeslaV4.

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

    • Detects executables referencing Windows vault credential objects. Observed in infostealers

    • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

    • Detects executables referencing many email and collaboration clients. Observed in information stealers

    • Detects executables referencing many file transfer clients. Observed in information stealers

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks