General

  • Target

    file.exe

  • Size

    4.2MB

  • Sample

    241126-jmhxmayjbq

  • MD5

    b4de34dcc96d16ec82f6fa3a7d037d4f

  • SHA1

    a61abdbcf17bd347b2f0733d921100bf5503e844

  • SHA256

    176260afa9071597e2a1a9947ae1394acf082932fbbb78b3c830c6d7c63bfa76

  • SHA512

    619dd38b27a461164a5541a42d4796b5f946df776d7e8e5e0849580c7148a6bbd7afb50db9e7ee0fb0f2dce02962a260fa7545c14d70f1e005243e1fd600aa33

  • SSDEEP

    98304:qyJObEL3jPKlKoUYSnB2qP/wU0NtC8FbxEMFfB:qyJHnoUYCUqlB8F1

Malware Config

Targets

    • Target

      file.exe

    • Size

      4.2MB

    • MD5

      b4de34dcc96d16ec82f6fa3a7d037d4f

    • SHA1

      a61abdbcf17bd347b2f0733d921100bf5503e844

    • SHA256

      176260afa9071597e2a1a9947ae1394acf082932fbbb78b3c830c6d7c63bfa76

    • SHA512

      619dd38b27a461164a5541a42d4796b5f946df776d7e8e5e0849580c7148a6bbd7afb50db9e7ee0fb0f2dce02962a260fa7545c14d70f1e005243e1fd600aa33

    • SSDEEP

      98304:qyJObEL3jPKlKoUYSnB2qP/wU0NtC8FbxEMFfB:qyJHnoUYCUqlB8F1

    • 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