Analysis

  • max time kernel
    150s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    22-05-2024 01:25

General

  • Target

    6583fa1c4a931884ab20da67ff58c4a7_JaffaCakes118.exe

  • Size

    512KB

  • MD5

    6583fa1c4a931884ab20da67ff58c4a7

  • SHA1

    60ce85ffddee5f77b3dcdbbeaa0a18c6b3382670

  • SHA256

    530c3e01f8ca478e81a5f867322d9d8b35369bb1fe0f9e6953a95cb09adfff4a

  • SHA512

    342c49ce337a0db2fca9b9c19b5d63d1ebd45ddfd74fa3f018771c9deeadb643351e40c80e3f29c18489aa85bcc36555ebd02013eb9624d914815762bba4663c

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6b:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5y

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
  • Modifies Installed Components in the registry 2 TTPs 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 7 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 4 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 behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 12 IoCs
  • Suspicious use of FindShellTrayWindow 47 IoCs
  • Suspicious use of SendNotifyMessage 33 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\6583fa1c4a931884ab20da67ff58c4a7_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\6583fa1c4a931884ab20da67ff58c4a7_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2764
    • C:\Windows\SysWOW64\eufmngtfhy.exe
      eufmngtfhy.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:3068
      • C:\Windows\SysWOW64\wkwxnzxy.exe
        C:\Windows\system32\wkwxnzxy.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        PID:2496
    • C:\Windows\SysWOW64\svgmwbapvgexvok.exe
      svgmwbapvgexvok.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:2452
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c izglkrmugiors.exe
        3⤵
          PID:2120
      • C:\Windows\SysWOW64\wkwxnzxy.exe
        wkwxnzxy.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:2872
      • C:\Windows\SysWOW64\izglkrmugiors.exe
        izglkrmugiors.exe
        2⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2588
      • 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
        PID:2356
    • C:\Windows\explorer.exe
      explorer.exe
      1⤵
      • Modifies Installed Components in the registry
      • Modifies registry class
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2668

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      512KB

      MD5

      5db93e9e3f8673c9e6d784a0d7f6ef25

      SHA1

      e9a1d4bfb5745be8103f89a642628f60e3d83a4f

      SHA256

      b4ddb456d745252695c4c8ddd57a3ad7fd5e6ec0ccb2b907e054e72e343c58a9

      SHA512

      0320c790bbf065a59e8b5952408157facf3d8422b9ef8ddee62d4f5abdbcc8dafe6cf17009518b4864b4ce1b7bb72ca6cd29dd6490e9135af78e0da23d708756

    • C:\Users\Admin\Downloads\ProtectJoin.doc.exe

      Filesize

      512KB

      MD5

      e95b531c85608b3bfd47630c869d8b09

      SHA1

      0d2a9a2826a0e9f429c5955469cac352921d5a73

      SHA256

      8efcf212d93a681f9c12f91e04874ca5c2fed0e605a579d3d2cc87fe4a81aa73

      SHA512

      9a1219cebbad00c48a1fd52ad2c942bd30fb4f663f6f64f9d462c657f6f50df838571260e12a8ba2bdc281a7998e3877535a879441d63fd61cc7e72e82f1da52

    • C:\Windows\SysWOW64\svgmwbapvgexvok.exe

      Filesize

      512KB

      MD5

      4bbad84ce92ab219beaba9937bcd0042

      SHA1

      5de44cfbeb372ae498b29241507c74eb25d6c434

      SHA256

      f4e9a54a8065076168e99467472eab51831571a14d1aabb0c019306ae38c6e7b

      SHA512

      6b59f79f5f656f23b3db17f33d79a4fbf6c15c2ce7b5ef79212eaf1ae0c4f08c58e41cdbc187c664ce721413ca2728819e665059597779d66b47a19d7a3371cf

    • C:\Windows\mydoc.rtf

      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

    • \Windows\SysWOW64\eufmngtfhy.exe

      Filesize

      512KB

      MD5

      d45c44bf17895a4051bb216ab5dfab61

      SHA1

      23ca6fb8f88990a399d77a48c9ce4a0694f07831

      SHA256

      44d92a832f17ae625ffe18f28faf2a05e56679d8af50555e0c1494209f1f3554

      SHA512

      5a725c28845523e659052d6034496fdac8874e3e6258c79e76cd1d76220ec3855ae13d10850ccba04a103eb08a8c9ac3c177d6afd2246d3cbf5daf254300b3bb

    • \Windows\SysWOW64\izglkrmugiors.exe

      Filesize

      512KB

      MD5

      0827466130027ed07d7420e9cb1def3b

      SHA1

      83e1cf863cc47b00de0098668cfac83ac7ec9a89

      SHA256

      91c4a0036203c5865d527835af41eb92486a77fbc608bac5f0077bbefd04d1d7

      SHA512

      ed01264c6eecfe9647444e86df02cb0b0a094c2ba20dc341403bc3581834be60dcbbed1d92ffe0a66b6b1e948a968172bf7c02c4bc06b3382e20e22bee9e0163

    • \Windows\SysWOW64\wkwxnzxy.exe

      Filesize

      512KB

      MD5

      5ba0bf693b9dfb70f85346221412a532

      SHA1

      580d98a1fb0cbd227f309757dc6da4957c56f797

      SHA256

      0d756bf02ef29bca8b0b724b322a3208956ff232c71b79d24f8b785605967a0d

      SHA512

      13482f9ec25f729843108b691f3a0f1dec404c9de45b6461f1430f729b27f924dede994545cd48b514342958ce1ecdf2703d75e3d55a09bd28ab4cbdcaf0a53a

    • memory/2356-45-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2668-84-0x0000000002750000-0x0000000002760000-memory.dmp

      Filesize

      64KB

    • memory/2764-0-0x0000000000400000-0x0000000000496000-memory.dmp

      Filesize

      600KB