General

  • Target

    01040c4c79da4ec0a133f69813340ab6_JaffaCakes118

  • Size

    884KB

  • Sample

    240426-r87f4seg31

  • MD5

    01040c4c79da4ec0a133f69813340ab6

  • SHA1

    24dee5963adafd4c235ea901ae802de2cc3a6c3d

  • SHA256

    1fa99a84802e9d03e4da0eab475da3e1e5b433607e8e9b5143f5e8efa04662bc

  • SHA512

    a4a731c74ad9230709233e8564061b005a64e19adc49e786e9e8bb7d26905fe708bb6812aca28ad95ffc68fa81756c6339eb6a1b10294a41413ac4170a34857c

  • SSDEEP

    24576:ZMMpXS0hN0V0HitSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlRXZ+CP63n03:Kwi0L0qTK/

Malware Config

Targets

    • Target

      01040c4c79da4ec0a133f69813340ab6_JaffaCakes118

    • Size

      884KB

    • MD5

      01040c4c79da4ec0a133f69813340ab6

    • SHA1

      24dee5963adafd4c235ea901ae802de2cc3a6c3d

    • SHA256

      1fa99a84802e9d03e4da0eab475da3e1e5b433607e8e9b5143f5e8efa04662bc

    • SHA512

      a4a731c74ad9230709233e8564061b005a64e19adc49e786e9e8bb7d26905fe708bb6812aca28ad95ffc68fa81756c6339eb6a1b10294a41413ac4170a34857c

    • SSDEEP

      24576:ZMMpXS0hN0V0HitSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlRXZ+CP63n03:Kwi0L0qTK/

    • 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