General

  • Target

    81faa857e0e440955735ed78a8c61ddd.exe

  • Size

    4.3MB

  • Sample

    241228-kesyasxnam

  • MD5

    81faa857e0e440955735ed78a8c61ddd

  • SHA1

    c13ce342d65ff323711b7a8829bcc3f94a3cfe56

  • SHA256

    0db9a16d15b04d332d6f96fea01b0c31662105d3097f340ed124c7357a964072

  • SHA512

    3daacf7ea9b6160568f0d285898c56921f588a226e5055b803c74533218bde2b9f102facba3e6fd2d47241b9b5edcdb11e2df29daa7307503092c7be161362c9

  • SSDEEP

    98304:j6o0e+zdDWFs1wNzJH9K5/ig4mCRqItKHT64yFyeYm5t7g/Htn:j6o0e+z84wVJHs5/x41cW4yEeP5ta

Malware Config

Extracted

Family

cryptbot

Targets

    • Target

      81faa857e0e440955735ed78a8c61ddd.exe

    • Size

      4.3MB

    • MD5

      81faa857e0e440955735ed78a8c61ddd

    • SHA1

      c13ce342d65ff323711b7a8829bcc3f94a3cfe56

    • SHA256

      0db9a16d15b04d332d6f96fea01b0c31662105d3097f340ed124c7357a964072

    • SHA512

      3daacf7ea9b6160568f0d285898c56921f588a226e5055b803c74533218bde2b9f102facba3e6fd2d47241b9b5edcdb11e2df29daa7307503092c7be161362c9

    • SSDEEP

      98304:j6o0e+zdDWFs1wNzJH9K5/ig4mCRqItKHT64yFyeYm5t7g/Htn:j6o0e+z84wVJHs5/x41cW4yEeP5ta

    • CryptBot

      CryptBot is a C++ stealer distributed widely in bundle with other software.

    • Cryptbot family

    • Enumerates VirtualBox registry keys

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • 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