General

  • Target

    file.exe

  • Size

    4.2MB

  • Sample

    241122-gtkzfs1pdj

  • MD5

    455d3e46c7b97c0e6f1ed1072e8ec7b1

  • SHA1

    fa1bc295a7f78dce0c28bf9c24a7fe16e8b6bc55

  • SHA256

    f5c02d06937793096e56f2acd5b302fe7cdcdfbdf943c9ee269b50037753969f

  • SHA512

    ef0b87b68dc6bb80f41d64c94b3e0d1170f9e9e02eaa191748e12bf32c8efe63d94063667a4cc6ec3c72094288b873b9fcb109b1885551111f0e6b59fc01181d

  • SSDEEP

    98304:rzGDqQnRFJ7VM/PyUxQKGVnvjUO5YZhcIibaCSzSb:rzGPnRFJ6HyyIxLUO5YEIipSzSb

Malware Config

Targets

    • Target

      file.exe

    • Size

      4.2MB

    • MD5

      455d3e46c7b97c0e6f1ed1072e8ec7b1

    • SHA1

      fa1bc295a7f78dce0c28bf9c24a7fe16e8b6bc55

    • SHA256

      f5c02d06937793096e56f2acd5b302fe7cdcdfbdf943c9ee269b50037753969f

    • SHA512

      ef0b87b68dc6bb80f41d64c94b3e0d1170f9e9e02eaa191748e12bf32c8efe63d94063667a4cc6ec3c72094288b873b9fcb109b1885551111f0e6b59fc01181d

    • SSDEEP

      98304:rzGDqQnRFJ7VM/PyUxQKGVnvjUO5YZhcIibaCSzSb:rzGPnRFJ6HyyIxLUO5YEIipSzSb

    • 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