Analysis

  • max time kernel
    149s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    03-06-2024 04:04

General

  • Target

    907abca4a46cd96738dd4cacd43e276e_JaffaCakes118.exe

  • Size

    512KB

  • MD5

    907abca4a46cd96738dd4cacd43e276e

  • SHA1

    a6261c56d6dcffc147cb8d2883834c2d12e7429d

  • SHA256

    d7d117e4bbcd6880006f68a014c68d43601d4df9bd64a61bd315a7981bef4e7e

  • SHA512

    ebfeeb895bde071c23a9bb40bb36ec192156d80f7f70e229cfaa155330c99e6e41a9294a3ef9c8b1e53b9ae2a161ccdafe8c1a46be93a4a152f693d169088dd9

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6j:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5u

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 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 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 use of AdjustPrivilegeToken 12 IoCs
  • Suspicious use of FindShellTrayWindow 47 IoCs
  • Suspicious use of SendNotifyMessage 36 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 32 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\907abca4a46cd96738dd4cacd43e276e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\907abca4a46cd96738dd4cacd43e276e_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:2052
    • C:\Windows\SysWOW64\wuvlqrnfai.exe
      wuvlqrnfai.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:2108
      • C:\Windows\SysWOW64\lovxpyfx.exe
        C:\Windows\system32\lovxpyfx.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:2576
    • C:\Windows\SysWOW64\upekfowdplihxeu.exe
      upekfowdplihxeu.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:2680
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c iyorslpyqifuf.exe
        3⤵
          PID:2568
      • C:\Windows\SysWOW64\lovxpyfx.exe
        lovxpyfx.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:2732
      • C:\Windows\SysWOW64\iyorslpyqifuf.exe
        iyorslpyqifuf.exe
        2⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2948
      • 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:2548
        • C:\Windows\splwow64.exe
          C:\Windows\splwow64.exe 12288
          3⤵
            PID:2260
      • C:\Windows\explorer.exe
        explorer.exe
        1⤵
        • Modifies Installed Components in the registry
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2604

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Roaming\Microsoft\Office\Recent\index.dat

        Filesize

        64B

        MD5

        e6f830248950f33f322c8513a686c435

        SHA1

        a547756ad54514832dd9ab0be9e5c2a31c9a6fe0

        SHA256

        cb2cd9993267bf17a4f417fdb97d3f62b73b20758ec788452d330c6ef5bbe20c

        SHA512

        c0e799fb75bc8552c4131e3f3142b3b51a15709a71eedb30bdf51d1757ec31c80068f2e516d8c574e57414b9da4d4e141e210fce441be0b1043a0938d148f0b0

      • C:\Users\Admin\Documents\TestApprove.doc.exe

        Filesize

        512KB

        MD5

        4b6f920ba30da63ee2413d4256b7a0fe

        SHA1

        27a8d56c55a79c93720317fa50c98f86f5c5aebb

        SHA256

        bc78783b743818db7e95cbc3710f1c01d72b0665c3424c80f2fc7e9b7763464e

        SHA512

        4786604fd4b98fc0795dcf8179043c2d0252a9f5046edfdaf023a96fe9061dfbac66c7fd6aa299fd2af3dcaf122630b4368492305e37f3e7a2ca64d60dfc08ce

      • C:\Windows\SysWOW64\upekfowdplihxeu.exe

        Filesize

        512KB

        MD5

        1aa35de9356dbdb861c6c80cf1c72bb9

        SHA1

        ad34c6136983e609cd557d7e559786ff91c719c9

        SHA256

        80e803a39a926873ea73cb32ba36d9b32bde0c206efdf2549c031fcf00fd76b0

        SHA512

        473cabe62a21b2dddf262334a7b6715acab944ab7929c111f7629e3951afec83a2a72a8db985ade328d7792c79fca817a0078e36adca39f1486d9320f4caf218

      • C:\Windows\mydoc.rtf

        Filesize

        223B

        MD5

        06604e5941c126e2e7be02c5cd9f62ec

        SHA1

        4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

        SHA256

        85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

        SHA512

        803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

      • \Windows\SysWOW64\iyorslpyqifuf.exe

        Filesize

        512KB

        MD5

        921968ae6bcda4df1b456df1efc732da

        SHA1

        f9d9450fdc70c77d8d6a2023e3d0e0c589226997

        SHA256

        866359adaecc2957e4f713dcac84bbabaf051faeacaf9785b4ebe0c27643407e

        SHA512

        705636764eb878dc30f03e55051cb44ea744a6b8c86b5551b41771654aa6195184d1a71d53906f82ce021286e5843c28682221ceea82f5afdb26cb0342198db6

      • \Windows\SysWOW64\lovxpyfx.exe

        Filesize

        512KB

        MD5

        b0cbe76472a3858095a88a2cdfa4e381

        SHA1

        444624c2e246d1df29b5949e11df8133b49ba2ad

        SHA256

        0fade0ae89e2d217ed2f62e034852ab21b55293cda5781992382b08fbc2cd3fe

        SHA512

        b74b869b1f82487929fe014fcbfd81e0170a4883af818923c71fd7ed2d7f8da8515517e81cf84b40934bb35ff0b561911dc62700ea0743e285db1d51bbb23c36

      • \Windows\SysWOW64\wuvlqrnfai.exe

        Filesize

        512KB

        MD5

        cbd595eb81b675123cd1ff8eefee5888

        SHA1

        d54c2e69455450bfbcc37884eb153c6551f77b37

        SHA256

        b153f3c93e188a19526c87837a999120d6408a271b059a6744a6615814b7abd7

        SHA512

        6e32da23c99869915891febd7259bd0a6067fc300f849cabe58dbef6adcb3ab8925d0c83b26308797b98f0c8b6e6a0d187af6282b31bc64d08d0f592eb10791d

      • memory/2052-0-0x0000000000400000-0x0000000000496000-memory.dmp

        Filesize

        600KB

      • memory/2548-45-0x000000005FFF0000-0x0000000060000000-memory.dmp

        Filesize

        64KB

      • memory/2604-83-0x0000000003C00000-0x0000000003C10000-memory.dmp

        Filesize

        64KB