General

  • Target

    random.exe

  • Size

    6.3MB

  • Sample

    250207-skqzwsxkbq

  • MD5

    3d72b2c4ba36263375742d6c8d726c98

  • SHA1

    64ed89d703370ce69d0d8dea61e697f192719421

  • SHA256

    5daf14b11bae7062c17e08f0fc02d949b70f0a862a703821f2bfdb7720c2e516

  • SHA512

    42fdb2e6e525d39897bf1031105f78aaf9731c539dc8bc619bb1aa4a08bac12c2b94f8efe26bb3165abb162fa0a89a8e40964da60847283a54ccda0ab654ad7c

  • SSDEEP

    98304:6/Ury/Oc4Njy7ObMpVR9H09BK96gcFOnCGppHMhUx/ja:6/Uymc4NOOCVf3gurp

Malware Config

Extracted

Family

cryptbot

Targets

    • Target

      random.exe

    • Size

      6.3MB

    • MD5

      3d72b2c4ba36263375742d6c8d726c98

    • SHA1

      64ed89d703370ce69d0d8dea61e697f192719421

    • SHA256

      5daf14b11bae7062c17e08f0fc02d949b70f0a862a703821f2bfdb7720c2e516

    • SHA512

      42fdb2e6e525d39897bf1031105f78aaf9731c539dc8bc619bb1aa4a08bac12c2b94f8efe26bb3165abb162fa0a89a8e40964da60847283a54ccda0ab654ad7c

    • SSDEEP

      98304:6/Ury/Oc4Njy7ObMpVR9H09BK96gcFOnCGppHMhUx/ja:6/Uymc4NOOCVf3gurp

    • CryptBot

      CryptBot is a C++ stealer distributed widely in bundle with other software.

    • Cryptbot family

    • Detects CryptBot payload

      CryptBot is a C++ stealer distributed widely in bundle with other software.

    • Enumerates VirtualBox registry keys

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

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • 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

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Checks installed software on the system

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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks