General

  • Target
    Pass_1234_Setup.rar
  • Size 5.3MB
  • Sample220630-lkvjrabhf2
  • SHA256 3b93d09292f2f38a0405954ff5c9a4697a2425fbcfad55d61782d4d055b2d9f7
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • recordbreaker

C2
  • http://45.140.146.30/

  • http://45.133.216.200/

Targets

    • Target
      Setup.exe
    • Size 400.2MB
    • SHA256 a62628c4a68d9261ab6fe875a79f6876ef1089b5b68ba57f61c65f3854aeef73
    • MD5 SHA1 SHA512
    • RecordBreaker

      RecordBreaker is an information stealer capable of downloading and executing secondary payloads written in C++.

    • suricata: ET MALWARE Generic .bin download from Dotted Quad

      suricata: ET MALWARE Generic .bin download from Dotted Quad

    • suricata: ET MALWARE Generic Stealer Config Download Request

      suricata: ET MALWARE Generic Stealer Config Download Request

    • suricata: ET MALWARE Win32/RecordBreaker CnC Checkin

      suricata: ET MALWARE Win32/RecordBreaker CnC Checkin

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

    • Downloads MZ/PE file

    • Executes dropped EXE

    • 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.

    • Loads dropped DLL

    • 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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v6

Tasks