General

  • Target
    99dfe8a4454f28c944e3c749150aecdaa97e19bcc5a9cf644a509b7eb1d4e50f
  • Size 4.0MB
  • Sample240624-1gcxvsshmb
  • SHA256 99dfe8a4454f28c944e3c749150aecdaa97e19bcc5a9cf644a509b7eb1d4e50f
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • stealc

Botnet
  • default

C2
  • http://85.28.47.4

Attributes
  • url_path

    /920475a59bac849d.php

Targets

    • Target
      99dfe8a4454f28c944e3c749150aecdaa97e19bcc5a9cf644a509b7eb1d4e50f
    • Size 4.0MB
    • SHA256 99dfe8a4454f28c944e3c749150aecdaa97e19bcc5a9cf644a509b7eb1d4e50f
    • MD5 SHA1 SHA512 SSDEEP
    • Stealc

      Stealc is an infostealer written in C++.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Downloads MZ/PE file

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • 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 web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Checks whether UAC is enabled

MITRE ATT&CK Enterprise v15

Tasks