General

  • Target
    PROFORMA_INVOICE.exe
  • Size 540KB
  • Sample260520-wbb16ae16p
  • SHA256 5ea572bc60e811027a4cb1098794eb2dc6bdeae545d8eb27b66c0b48b1688efe
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • masslogger

Attributes
  • exfiltration_mode

    #SMTPEnabled

  • expire_time_date

    2025-02-19

  • host_password

    goodGod2024

  • host_port

    587

  • host_receiver

    [email protected]

  • host_sender

    [email protected]

  • host_server

    mail.mzgold.ir

  • ssl_slate

    True

Targets

    • Target
      PROFORMA_INVOICE.exe
    • Size 540KB
    • SHA256 5ea572bc60e811027a4cb1098794eb2dc6bdeae545d8eb27b66c0b48b1688efe
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects Darktortilla crypter.

    • Family: Darktortilla

      DarkTortilla is a highly configurable .NET based crypter that delivers a wide range of information stealers.

    • Family: MassLogger

      Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

    • Modifies WinLogon for persistence

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Executes dropped EXE

    • Accesses Microsoft Outlook profiles

    • 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 v16

Tasks