General

  • Target

    file.exe

  • Size

    4.2MB

  • Sample

    241125-pyxstaxkbx

  • MD5

    02bb15adea48221f6c39e50f1c4d902c

  • SHA1

    7ca16530831f2388c7cf367e3e782533a764bf10

  • SHA256

    af2552f7d0586a5c95bbbf16460571b82e18aa651a440fa94136b0258c640c14

  • SHA512

    31c547da420e474dbc2e729b05f33c2022e24743ed673ca125ff5345a1e1e00c5b6579338bd6fa2c7c1fd316a49266d4ae4b14c35b3cb9f40842dd9c8bcef774

  • SSDEEP

    98304:EZQ6G/2bP/6awhqwu0osOyyifwcdrbX62Q0aMX+anOWQ+:gQIPtdsfy0wcdz+Yu

Malware Config

Targets

    • Target

      file.exe

    • Size

      4.2MB

    • MD5

      02bb15adea48221f6c39e50f1c4d902c

    • SHA1

      7ca16530831f2388c7cf367e3e782533a764bf10

    • SHA256

      af2552f7d0586a5c95bbbf16460571b82e18aa651a440fa94136b0258c640c14

    • SHA512

      31c547da420e474dbc2e729b05f33c2022e24743ed673ca125ff5345a1e1e00c5b6579338bd6fa2c7c1fd316a49266d4ae4b14c35b3cb9f40842dd9c8bcef774

    • SSDEEP

      98304:EZQ6G/2bP/6awhqwu0osOyyifwcdrbX62Q0aMX+anOWQ+:gQIPtdsfy0wcdz+Yu

    • 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