General

  • Target
    Invoice.zip
  • Size 250KB
  • Sample220506-vcs6dschdr
  • SHA256 abef74a699cc498ba7b686dc2a3199e66d485dba0d79aa7e932e381f373baafd
  • MD5 SHA1 SHA512

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    mail.avizatechnologies.com

  • Port

    587

  • Password

    s?I%3su#oFtB

Targets

    • Target
      Invoice.exe
    • Size 264KB
    • SHA256 3ce612b0f9fe428cee187e2c135bb42db9054307d1704101bb54f5235dd1bdd9
    • MD5 SHA1 SHA512
    • AgentTesla

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

    • suricata: ET MALWARE AgentTesla Exfil Via SMTP

      suricata: ET MALWARE AgentTesla Exfil Via SMTP

    • Drops file in Drivers directory

    • 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.

    • Accesses Microsoft Outlook profiles

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks