General

  • Target

    file.exe

  • Size

    4.2MB

  • Sample

    241120-nvkhms1kaq

  • MD5

    6c252bd0d2276c27af37629d8cf891db

  • SHA1

    77a8f28e1594ffdca929e0f7528ce578a2758282

  • SHA256

    79ba6f438dc061cd67dd554bccb6a3a8c7263615565d324b48e92d5a3e4a82d4

  • SHA512

    520ce00369cb202da14840354dee1df7695f303008cd517b1e9a43a7f5be3f576b60d457e43f9df9733dbbca081ca6fe7df0a233f33659c8db5ea4f95566e604

  • SSDEEP

    98304:310DA+t/7OvVb9RJ55MrfFqLppk2qwkncfKi1iGOL:3qDA+tTO7TMELYrncHYGI

Malware Config

Targets

    • Target

      file.exe

    • Size

      4.2MB

    • MD5

      6c252bd0d2276c27af37629d8cf891db

    • SHA1

      77a8f28e1594ffdca929e0f7528ce578a2758282

    • SHA256

      79ba6f438dc061cd67dd554bccb6a3a8c7263615565d324b48e92d5a3e4a82d4

    • SHA512

      520ce00369cb202da14840354dee1df7695f303008cd517b1e9a43a7f5be3f576b60d457e43f9df9733dbbca081ca6fe7df0a233f33659c8db5ea4f95566e604

    • SSDEEP

      98304:310DA+t/7OvVb9RJ55MrfFqLppk2qwkncfKi1iGOL:3qDA+tTO7TMELYrncHYGI

    • 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