General

  • Target

    file.exe

  • Size

    4.2MB

  • Sample

    241126-lsrstswjfy

  • MD5

    656371664d61fbd6c3db3bdf26b502d7

  • SHA1

    b0d400bdaa8c52aa61ab572d8e3cf77066a11c6f

  • SHA256

    39ea348148e0911c4682bddcca8fb0ebaa3b6e733cd7b319e859161ac306462f

  • SHA512

    c1950690f598c5ea7b8b36bed90c24ce42c47e4b34c0102561b690db54b2fb2772a3cdc3c24da5b5e0b777b8dcc80d835b4e2cb468073a25bfe0bf6ac18f1edf

  • SSDEEP

    98304:Uib9DJROG8rIMz6D+OWpcU1bf+Ii2l5eyrbSGyJIIT8hRnLGj:Uib9VROP6yfcOf+rKeCSr8hR4

Malware Config

Targets

    • Target

      file.exe

    • Size

      4.2MB

    • MD5

      656371664d61fbd6c3db3bdf26b502d7

    • SHA1

      b0d400bdaa8c52aa61ab572d8e3cf77066a11c6f

    • SHA256

      39ea348148e0911c4682bddcca8fb0ebaa3b6e733cd7b319e859161ac306462f

    • SHA512

      c1950690f598c5ea7b8b36bed90c24ce42c47e4b34c0102561b690db54b2fb2772a3cdc3c24da5b5e0b777b8dcc80d835b4e2cb468073a25bfe0bf6ac18f1edf

    • SSDEEP

      98304:Uib9DJROG8rIMz6D+OWpcU1bf+Ii2l5eyrbSGyJIIT8hRnLGj:Uib9VROP6yfcOf+rKeCSr8hR4

    • 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