General

  • Target
    Chaos Solution.exe
  • Size 6.4MB
  • Sample250922-w75ckssry2
  • SHA256 1dbb77aaaa897dca1ca3f911d6570df5c4bf9b2cafb88d2be8342fe032fb4ebb
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • stealc

Botnet
  • for4dexine

C2
  • http://178.16.54.175

Attributes
  • url_path

    /e9762ff07e084dbb.php

rc4.plain

Targets

    • Target
      Chaos Solution.exe
    • Size 6.4MB
    • SHA256 1dbb77aaaa897dca1ca3f911d6570df5c4bf9b2cafb88d2be8342fe032fb4ebb
    • MD5 SHA1 SHA512 SSDEEP
    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

    • 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

    • 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 v16

Tasks