General

  • Target

    file.exe

  • Size

    4.2MB

  • Sample

    241121-a2jb9s1qaj

  • MD5

    389910a7e7b0be062240be06d7ce5d31

  • SHA1

    6c7f61dd43e11c3b5ee5bd21914ae5a9875adc7f

  • SHA256

    f9fe7307aac94b1dcd354cb199243dad83dcb5c3cdf4b599e643e8321b916ef1

  • SHA512

    231c854c70859b52f000f0a374d63077dfb00ee3af1ceabc76e53ffb289008d4a94df7dd0c6ab7482ca350ee6ee8f9ca79b20881534295a6ab7a0bfe545d66a0

  • SSDEEP

    98304:Va6kKK3wPgdgFfIlJgQGhx2jNyvJE0OzSDyQFRLnuYvb6HTjUwKnISeC:06kfwPytGhAjNsEpoyQFduYvbOX9KnID

Malware Config

Targets

    • Target

      file.exe

    • Size

      4.2MB

    • MD5

      389910a7e7b0be062240be06d7ce5d31

    • SHA1

      6c7f61dd43e11c3b5ee5bd21914ae5a9875adc7f

    • SHA256

      f9fe7307aac94b1dcd354cb199243dad83dcb5c3cdf4b599e643e8321b916ef1

    • SHA512

      231c854c70859b52f000f0a374d63077dfb00ee3af1ceabc76e53ffb289008d4a94df7dd0c6ab7482ca350ee6ee8f9ca79b20881534295a6ab7a0bfe545d66a0

    • SSDEEP

      98304:Va6kKK3wPgdgFfIlJgQGhx2jNyvJE0OzSDyQFRLnuYvb6HTjUwKnISeC:06kfwPytGhAjNsEpoyQFduYvbOX9KnID

    • 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