General

  • Target

    d91b3f6f4e566fff74506d30a1a61597c03f07b1f826f393bebfee12cbc8d95d.exe

  • Size

    4.2MB

  • Sample

    241121-klf73szejh

  • MD5

    2ca191450d69dcbee0485f1c14135040

  • SHA1

    6cf3997d6e3f246bcad8497476fea2dd792199fa

  • SHA256

    d91b3f6f4e566fff74506d30a1a61597c03f07b1f826f393bebfee12cbc8d95d

  • SHA512

    8a4241a3cd9531db18b75b5bed1a384daf71a45876f85de6821bcecfdb2c6f7efd67facb35313afe496696a5c73e2b36d6aa17b96b39d1c84593a61a61715e2a

  • SSDEEP

    98304:ymh/kvf6iOF400QlB3ff0w9FfHx1xe1wvVIUL1z:ymh/kH6LFV0Qldf0SfbeMVIUL1

Malware Config

Targets

    • Target

      d91b3f6f4e566fff74506d30a1a61597c03f07b1f826f393bebfee12cbc8d95d.exe

    • Size

      4.2MB

    • MD5

      2ca191450d69dcbee0485f1c14135040

    • SHA1

      6cf3997d6e3f246bcad8497476fea2dd792199fa

    • SHA256

      d91b3f6f4e566fff74506d30a1a61597c03f07b1f826f393bebfee12cbc8d95d

    • SHA512

      8a4241a3cd9531db18b75b5bed1a384daf71a45876f85de6821bcecfdb2c6f7efd67facb35313afe496696a5c73e2b36d6aa17b96b39d1c84593a61a61715e2a

    • SSDEEP

      98304:ymh/kvf6iOF400QlB3ff0w9FfHx1xe1wvVIUL1z:ymh/kH6LFV0Qldf0SfbeMVIUL1

    • 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