General

  • Target

    file.exe

  • Size

    4.2MB

  • Sample

    241124-bt375sxjcw

  • MD5

    ce1c81d721906475fc878ebd26d09ad4

  • SHA1

    2fd29c1c343af0ffc67441b448e8a101b7f7854e

  • SHA256

    a80ca2e11b0eaa75711ca4b8a002d95f45e8dbaf41101e4dfc52b32ab5d9ddae

  • SHA512

    af61993252d78e5da18d4826ba22e3496aebf9a14af715ff7034d9972b577b5ca4d75dfa0fab515e384dec5f74a27a53d4d25d9423500580f74dcd2c1b5be5ff

  • SSDEEP

    98304:v3FnLa3pgrd18qp3n1DpjPJRTIWFKdI+4b/TxHkKT5KdKXzJ+S:fFnLa3qR1v3VpjJRcEKdIfblEO5KdKjo

Malware Config

Targets

    • Target

      file.exe

    • Size

      4.2MB

    • MD5

      ce1c81d721906475fc878ebd26d09ad4

    • SHA1

      2fd29c1c343af0ffc67441b448e8a101b7f7854e

    • SHA256

      a80ca2e11b0eaa75711ca4b8a002d95f45e8dbaf41101e4dfc52b32ab5d9ddae

    • SHA512

      af61993252d78e5da18d4826ba22e3496aebf9a14af715ff7034d9972b577b5ca4d75dfa0fab515e384dec5f74a27a53d4d25d9423500580f74dcd2c1b5be5ff

    • SSDEEP

      98304:v3FnLa3pgrd18qp3n1DpjPJRTIWFKdI+4b/TxHkKT5KdKXzJ+S:fFnLa3qR1v3VpjJRcEKdIfblEO5KdKjo

    • 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.

    • 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