General

  • Target

    4ce8b7b64434758644fe5b65c40c7dab_JaffaCakes118

  • Size

    689KB

  • Sample

    240516-zcckvsfb97

  • MD5

    4ce8b7b64434758644fe5b65c40c7dab

  • SHA1

    ec61f7cff00954f762d62acabc7eafd60e8436df

  • SHA256

    45a787ae9cb457db3cad5811a421af21ef417cec13fc0279e9f6a89c39523805

  • SHA512

    1f115b8d2c16451fad74d9b7a85ead60aac3d3bcaf6239ff97651d9f3a384d78d21477315eefb2fd079d53c505ba533ad8d36a16382a48bf9d2039e77abe1816

  • SSDEEP

    12288:ZMMpXKb0hNGh1kG0HWnAlU866w0B2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlC:ZMMpXS0hN0V0HZSGB2uJ2s4otqFCJrWd

Malware Config

Targets

    • Target

      4ce8b7b64434758644fe5b65c40c7dab_JaffaCakes118

    • Size

      689KB

    • MD5

      4ce8b7b64434758644fe5b65c40c7dab

    • SHA1

      ec61f7cff00954f762d62acabc7eafd60e8436df

    • SHA256

      45a787ae9cb457db3cad5811a421af21ef417cec13fc0279e9f6a89c39523805

    • SHA512

      1f115b8d2c16451fad74d9b7a85ead60aac3d3bcaf6239ff97651d9f3a384d78d21477315eefb2fd079d53c505ba533ad8d36a16382a48bf9d2039e77abe1816

    • SSDEEP

      12288:ZMMpXKb0hNGh1kG0HWnAlU866w0B2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlC:ZMMpXS0hN0V0HZSGB2uJ2s4otqFCJrWd

    • Modifies WinLogon for persistence

    • Renames multiple (91) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Drops autorun.inf file

      Malware can abuse Windows Autorun to spread further via attached volumes.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks