General

  • Target
    VIZSPLOIT.exe
  • Size 4.2MB
  • Sample241023-amfb3a1fpc
  • SHA256 e23062cd6dad6012797a7e52358e73c1597900ae3a4f0da83daff4c2bf9854b3
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • stealc

Botnet
  • game

C2
  • http://193.233.112.44

Attributes
  • url_path

    /383ccd496f3c5eee.php

Targets

    • Target
      VIZSPLOIT.exe
    • Size 4.2MB
    • SHA256 e23062cd6dad6012797a7e52358e73c1597900ae3a4f0da83daff4c2bf9854b3
    • 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.

    • Checks computer location settings

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

    • 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 web browsers

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • 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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks