Analysis

  • max time kernel
    149s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    12-06-2024 13:33

General

  • Target

    a0d70dafbf56fbf8248a1a5f8a9b81cd_JaffaCakes118.exe

  • Size

    512KB

  • MD5

    a0d70dafbf56fbf8248a1a5f8a9b81cd

  • SHA1

    232e4d759c7a4959d1ef54f50b9a3462286f8ab9

  • SHA256

    2d3d7773775404e6b644e50be9dbc8fd33f373a6f1430f0fd8956f4c32548ed6

  • SHA512

    3051a78bfd170f5d8be770ae8ca648d59a59c1e77eac824ec2382a98df5d4f088cef26f931cde0ef12df08b257fabe930070d6c4c841e1fc3e63f117d0bb903f

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6D: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
  • 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\a0d70dafbf56fbf8248a1a5f8a9b81cd_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a0d70dafbf56fbf8248a1a5f8a9b81cd_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:2088
    • C:\Windows\SysWOW64\exrlbswqpw.exe
      exrlbswqpw.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:2980
      • C:\Windows\SysWOW64\fybmtxcn.exe
        C:\Windows\system32\fybmtxcn.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:2708
    • C:\Windows\SysWOW64\mszerdyxozbfttm.exe
      mszerdyxozbfttm.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2676
    • C:\Windows\SysWOW64\fybmtxcn.exe
      fybmtxcn.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:2760
    • C:\Windows\SysWOW64\ntzstjbhzziyw.exe
      ntzstjbhzziyw.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2404
    • 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:2740
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:1712

    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

      d73ea28c12e4f39770bbe4bc2dc276a0

      SHA1

      e1fed7cdd21ba6f7e825ecd7374c7158cfd155f3

      SHA256

      9d6b27b5a950cc3345c50964ffef4039c7172801965b85c9a8df86de29b13f75

      SHA512

      bc834d4c25d4843a26fb19bd2a677574bb48578196a21e1378e5708e3b10635992e1cd54ba2a8daadf11eabd1f094b99a4e8b09f801171671e41eb0b7bab8bad

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

      Filesize

      20KB

      MD5

      a5f4c044a8ffd99699b8d9693deee338

      SHA1

      d2b82edeb8207043b1714dbfd329420f216f7276

      SHA256

      7ac6f10ac3f3a951966ce90b9529e2b5e275c67b2f03077556819676e78ab992

      SHA512

      1a06514a4b07e6442901741343f43cd4891420981a939d75767c96ad8016b55e8c995643bfe58472a035493aae78a8c11fa2a91cc881ef4715d0b2d22f6783ba

    • C:\Windows\SysWOW64\mszerdyxozbfttm.exe

      Filesize

      512KB

      MD5

      58483c2e619fb7cca8c29ba05d3cfe58

      SHA1

      0e4b009979f67f2666fce5414a6917284d1b2b49

      SHA256

      c5e60bd47dfe96684b1ac56db6251fabc6ba1643414537c4ceab608fd0a891a3

      SHA512

      60b9d2aae5ad4b2a3299d480301a030b3a373d2976b0e5e1670a5a3bb1ef7dd481588baa8e1faaa2bf8be90de87817946e958fddf5c91616383921eaf75f974b

    • C:\Windows\SysWOW64\ntzstjbhzziyw.exe

      Filesize

      512KB

      MD5

      adb5fa4595121b91a0bab6e56bb823e6

      SHA1

      f0e0bc90fa38880da96c18e9be80957f3ccc930c

      SHA256

      24266b73d09a1133a8897806cdf830a2a8f117a682f9693e0ea7ff35cc8c0a35

      SHA512

      dd0d673d9fd37a7528e20f7e5077959bfaed4210d73954dccb6112829b68098a63ec4b7edca25e8afb143480d1226a5b48c5c09acc5b7db87fe5ef67e499f0a7

    • C:\Windows\mydoc.rtf

      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

    • \Windows\SysWOW64\exrlbswqpw.exe

      Filesize

      512KB

      MD5

      29054890892f116b435ba59bb6532702

      SHA1

      00a247dfb5cb70b3e7b0b1228fbb4eac693f634e

      SHA256

      3400e3f9bda129ebc14d8accdb135b50b4c33dc71b320f754cab5e7099b200ff

      SHA512

      853f929613d51db914278701ac3d551a5a00d23f29e8a065754e97b6d53fc557442978dbfcf7151b180cb32d1a445c13fc5448be37eaaf39c4320e903c429275

    • \Windows\SysWOW64\fybmtxcn.exe

      Filesize

      512KB

      MD5

      6ef28f438669c39e58b8f3b8ac8e9d7e

      SHA1

      d1e49e96fd1577ab8270d877d532e5b872539d45

      SHA256

      1c3dfaeaef16ada00d5a9718bacb196f4efd5bffa738e53ba64f42f7b40e8ffe

      SHA512

      0cb0269df97c1fa5d898d5a8276aa479030fac7672e5c33d6250064c02c97379c809d6901250cdb2cc314b7a9b085c04d3802d2fb81502bc6fa54033ab9c38c5

    • memory/2088-0-0x0000000000400000-0x0000000000496000-memory.dmp

      Filesize

      600KB

    • memory/2740-45-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2740-102-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB