General

  • Target

    file.exe

  • Size

    4.2MB

  • Sample

    241120-xd334a1bra

  • MD5

    f90374d1e2df332bd4f9e86c9ae614a0

  • SHA1

    31a9cc771605166f62d58badad661d2d727ea218

  • SHA256

    f9bdb5c752cc0ed00c82cfd43688b694a98cd593e583d31809b625e69b6be007

  • SHA512

    d6e2201ede8cf552d2e7c47630ee09f2cb316e0d0511a60a66ae29c19b76304367618053cfe41d647c6991557789fe34e3cfd7168908ed22fe261da80d66f014

  • SSDEEP

    98304:c+4svHtTl8A58Z7VKxOqfUDenVjq7AH66wtRk09kG:esvHxl8AKZNVDI4D6wyG

Malware Config

Targets

    • Target

      file.exe

    • Size

      4.2MB

    • MD5

      f90374d1e2df332bd4f9e86c9ae614a0

    • SHA1

      31a9cc771605166f62d58badad661d2d727ea218

    • SHA256

      f9bdb5c752cc0ed00c82cfd43688b694a98cd593e583d31809b625e69b6be007

    • SHA512

      d6e2201ede8cf552d2e7c47630ee09f2cb316e0d0511a60a66ae29c19b76304367618053cfe41d647c6991557789fe34e3cfd7168908ed22fe261da80d66f014

    • SSDEEP

      98304:c+4svHtTl8A58Z7VKxOqfUDenVjq7AH66wtRk09kG:esvHxl8AKZNVDI4D6wyG

    • 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