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General

  • Target

    2be4dd24679af4e98fdfec189af0f649_JaffaCakes118

  • Size

    886KB

  • Sample

    240509-1skrvabg85

  • MD5

    2be4dd24679af4e98fdfec189af0f649

  • SHA1

    c98232a649386e254af6da55d0f12670307d3d87

  • SHA256

    a7c8e4720af0da66a4c8499f151837bca5d6298c902cc88cfb4a2487fd093f74

  • SHA512

    15553ffb127b758fe5d80e3aee44098f95ae65e569cb2350bf2a305244e8b0f8fe0e91907f3a04ef4ab09c502e9e3640f5ee82f5eff502872e3e5cfb1a549100

  • SSDEEP

    24576:ZMMpXS0hN0V0HoSMMMpXS0hN0CjSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGq:Kwi0L0qlFwi0L0NT

Malware Config

Targets

    • Target

      2be4dd24679af4e98fdfec189af0f649_JaffaCakes118

    • Size

      886KB

    • MD5

      2be4dd24679af4e98fdfec189af0f649

    • SHA1

      c98232a649386e254af6da55d0f12670307d3d87

    • SHA256

      a7c8e4720af0da66a4c8499f151837bca5d6298c902cc88cfb4a2487fd093f74

    • SHA512

      15553ffb127b758fe5d80e3aee44098f95ae65e569cb2350bf2a305244e8b0f8fe0e91907f3a04ef4ab09c502e9e3640f5ee82f5eff502872e3e5cfb1a549100

    • SSDEEP

      24576:ZMMpXS0hN0V0HoSMMMpXS0hN0CjSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGq:Kwi0L0qlFwi0L0NT

    • 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