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General

  • Target

    2b5a958eb46e4773c9cf8b619780ef72_JaffaCakes118

  • Size

    781KB

  • Sample

    240509-xb792aca84

  • MD5

    2b5a958eb46e4773c9cf8b619780ef72

  • SHA1

    55fd1b59bc4401a581e1cd3a8d76a0f792a4c9b7

  • SHA256

    adef926286b3351e3d4abc650296821f24e7bfede5832af2989a7facb57b9a0e

  • SHA512

    47607151384649e2e4689dcc7da6c265bbc36caaa9c44d54943d3cc1ec8ae280d013be65447c994f90ddb2e67a10b3f1429b717155ad088e1e024a24d3a14da6

  • SSDEEP

    24576:ZMMpXS0hN0V0HZSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlRXZ+CP63n0N2:Kwi0L0qkV

Malware Config

Targets

    • Target

      2b5a958eb46e4773c9cf8b619780ef72_JaffaCakes118

    • Size

      781KB

    • MD5

      2b5a958eb46e4773c9cf8b619780ef72

    • SHA1

      55fd1b59bc4401a581e1cd3a8d76a0f792a4c9b7

    • SHA256

      adef926286b3351e3d4abc650296821f24e7bfede5832af2989a7facb57b9a0e

    • SHA512

      47607151384649e2e4689dcc7da6c265bbc36caaa9c44d54943d3cc1ec8ae280d013be65447c994f90ddb2e67a10b3f1429b717155ad088e1e024a24d3a14da6

    • SSDEEP

      24576:ZMMpXS0hN0V0HZSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlRXZ+CP63n0N2:Kwi0L0qkV

    • 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