General

  • Target

    file.exe

  • Size

    4.2MB

  • Sample

    241123-2chg8awmdm

  • MD5

    e4ce436577c61894061cb66d79ff104c

  • SHA1

    f9fefdd313f0418ddf9d143bf66566c2932cc0b5

  • SHA256

    f9445c47bc1b7580e4a81cda77fe412ffad705411ab1cc28d164250d275a3017

  • SHA512

    6d3ead9324b8061e32f1e4dc133e6a1e129d24cd17d147595fe8aeb445c462b39a696edb5c4fa005d4fb86113b7183f37103b0e10648490ed87302fc423fb222

  • SSDEEP

    98304:MHVnAVflpUOMkj4jRPDsaHFzPh0ujVS/V0jnYIi1NCxX80bJ6Q2YRebm0:MHJAVf5Fj4xBlPGc2uuGX96Qvel

Malware Config

Targets

    • Target

      file.exe

    • Size

      4.2MB

    • MD5

      e4ce436577c61894061cb66d79ff104c

    • SHA1

      f9fefdd313f0418ddf9d143bf66566c2932cc0b5

    • SHA256

      f9445c47bc1b7580e4a81cda77fe412ffad705411ab1cc28d164250d275a3017

    • SHA512

      6d3ead9324b8061e32f1e4dc133e6a1e129d24cd17d147595fe8aeb445c462b39a696edb5c4fa005d4fb86113b7183f37103b0e10648490ed87302fc423fb222

    • SSDEEP

      98304:MHVnAVflpUOMkj4jRPDsaHFzPh0ujVS/V0jnYIi1NCxX80bJ6Q2YRebm0:MHJAVf5Fj4xBlPGc2uuGX96Qvel

    • 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