Analysis

  • max time kernel
    150s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    14-06-2024 21:19

General

  • Target

    ab8414edc043a9d6f7804170942da343_JaffaCakes118.exe

  • Size

    512KB

  • MD5

    ab8414edc043a9d6f7804170942da343

  • SHA1

    fe801a8dc6c43bb30ba4a6bff33532d33230750e

  • SHA256

    b7074d4785ff6c3f9900363972d6057ed004287fb7605e086c2ed644628a739e

  • SHA512

    a1a9e0c981f43c26b9785f8dbb9e71d4ee412b168c2333238bc9e06a7a0d6f12594e8e5ba0665cef95df9c72f096bf83e4e1c5f816d2e1dfbdf6725cd52230ef

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6+:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5B

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 5 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Windows security modification 2 TTPs 6 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

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

  • Modifies WinLogon 2 TTPs 2 IoCs
  • AutoIT Executable 6 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 9 IoCs
  • Drops file in Program Files directory 14 IoCs
  • Drops file in Windows directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of FindShellTrayWindow 18 IoCs
  • Suspicious use of SendNotifyMessage 18 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ab8414edc043a9d6f7804170942da343_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\ab8414edc043a9d6f7804170942da343_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1212
    • C:\Windows\SysWOW64\yndiwydjbq.exe
      yndiwydjbq.exe
      2⤵
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Loads dropped DLL
      • Windows security modification
      • Enumerates connected drives
      • Modifies WinLogon
      • Drops file in System32 directory
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:2604
      • C:\Windows\SysWOW64\pxdjzvun.exe
        C:\Windows\system32\pxdjzvun.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2760
    • C:\Windows\SysWOW64\rcrduzcezemelxd.exe
      rcrduzcezemelxd.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2652
    • C:\Windows\SysWOW64\pxdjzvun.exe
      pxdjzvun.exe
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2768
    • C:\Windows\SysWOW64\olssytlctcuoi.exe
      olssytlctcuoi.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2636
    • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
      "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Windows\mydoc.rtf"
      2⤵
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2680
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:2488

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.DOC.exe

      Filesize

      512KB

      MD5

      fd4912d38fb05cda3812a2b34b9ea0a9

      SHA1

      194f1672676b036735b61243f3758b760c8c7a80

      SHA256

      17a0b94488189e770008ccf1c93bb0247cf1788518347853d21c45f0d290390a

      SHA512

      8227dd3c09d6249208eff57314df684e50eaad66c28342b30f18854fc418b1ee58cbb9975fbfb0bdc3a56a89ce468d6d724bc7c24efcc8fd7df6623973d5834a

    • C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm

      Filesize

      20KB

      MD5

      4801d5ca450d38bd1a1af03344252f47

      SHA1

      bd03973ee7dd5d0c55ac87e613949e77266e75bf

      SHA256

      e8766599ad36fa486f54b156176f18b05940d6363119945452740c33ccedf850

      SHA512

      f1837691ba31760d9ece480155769bf7446699d8dd1b3d83602fa0554d708ac694aaebcafa23fe43493bc4affafae5c876ebc1a44e3f3d163da976f43230b544

    • C:\Windows\SysWOW64\rcrduzcezemelxd.exe

      Filesize

      512KB

      MD5

      5db0389bfedc0d7ca4247a089e4e4bab

      SHA1

      12e1a01fabc92b9e017857c019fe22a49ee4f56e

      SHA256

      89bf2d5faf5407c73d3829ef99c12b9937078e8ea6baa08d3c48c901c1066446

      SHA512

      3d73094a8d500b84811fe0f75d9000e47f009272eca6d203243ae4ee65b281629217c625fe4e1036d86519db1d8f16f933a42b9ab7a791baa3671d99a9024643

    • C:\Windows\mydoc.rtf

      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

    • \Windows\SysWOW64\olssytlctcuoi.exe

      Filesize

      512KB

      MD5

      2b7aaa811cb609efa941048cfa680373

      SHA1

      2ffc62cda20900f88c3431a4705a4fd21a1ba5d8

      SHA256

      204585a0ddb33ac6c0e8cf10f50353a0538b0fccecdb27a48c9d3e3aae5c677d

      SHA512

      30fd2e244d5a798801140635e0ef6ab5151522069c8973883f64c87c13f88e343ab1c1471b8cad887a6910c0901e80634663b86514e55c3bfc13b68acd54bb6f

    • \Windows\SysWOW64\pxdjzvun.exe

      Filesize

      512KB

      MD5

      6119928568204908e13cba9ab18f54c7

      SHA1

      9eb80276d8746eb9a294d5f3c76ef3c346cf74f3

      SHA256

      522a3cc28b9e34afa5547c29c7aeaa737d0d1cfd1a2500c17ea69a6cae830bb5

      SHA512

      231e1e6c37aedb796abb3cc02f3c19cbac60159e07e3922e7988a3b94b09b200af9ceb4e8ed362d2bd76a694e421f03cfda59615b6cb701caf17c487d246b28b

    • \Windows\SysWOW64\yndiwydjbq.exe

      Filesize

      512KB

      MD5

      0d939dae8093caf837ababd4ff5af96a

      SHA1

      db3a3e7f950abf58ce44459cbb130de6e5054ae8

      SHA256

      45249383b53e37b68459bf95d1d8ad66a3f3871ce1068a2121286ec2e2aa842c

      SHA512

      2751f6bc9b24733b41721ee99f1e496c3315e4fd9484906146652b5e71db81c10e82e1d66347d7a44ff5b44a674b5456ee5a37055587d4ead3d5d91a748c9611

    • memory/1212-0-0x0000000000400000-0x0000000000496000-memory.dmp

      Filesize

      600KB

    • memory/2680-45-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2680-99-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB