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Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/04/2024, 07:34

General

  • Target

    ea904e91e1f7cfa59118378c10ea02d5_JaffaCakes118.exe

  • Size

    52KB

  • MD5

    ea904e91e1f7cfa59118378c10ea02d5

  • SHA1

    e6e331b02feb4fd195576ac7b7ed1c302055c40b

  • SHA256

    3e405cf51962c5cab5fbfe7825be054082e1ccdc36277d2c87bcff5edc5619d2

  • SHA512

    6da468b53ff3601c494bc32b8e075f12ed49a9fba4f33524a0397200eb88f701c815bde6534be237c371e203d55bc2e39cf3b6882058f5471223f732afa9d440

  • SSDEEP

    768:tzFfdBozItqlxy+zv9HtixQaPQPS71cZdb109YSBkO6gKYOmGBH:tzr0Itq7yMv9Htix/PjWvO9YSSTBY8BH

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 4 IoCs
  • Modifies registry class 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\winlogon.exe
    winlogon.exe
    1⤵
      PID:636
    • C:\Users\Admin\AppData\Local\Temp\ea904e91e1f7cfa59118378c10ea02d5_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\ea904e91e1f7cfa59118378c10ea02d5_JaffaCakes118.exe"
      1⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1048
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe C:\Windows\system32\vtUlLCus.dll,a
        2⤵
        • Loads dropped DLL
        • Adds Run key to start application
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        PID:4980
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\removalfile.bat "C:\Users\Admin\AppData\Local\Temp\ea904e91e1f7cfa59118378c10ea02d5_JaffaCakes118.exe"
        2⤵
          PID:2084

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\removalfile.bat

        Filesize

        43B

        MD5

        9a7ef09167a6f4433681b94351509043

        SHA1

        259b1375ed8e84943ca1d42646bb416325c89e12

        SHA256

        d5739a0510d89da572eb0b0d394d4fb4dd361cd9ee0144b9b31c590df93c3be7

        SHA512

        96b84cd88a0e4b7c1122af3ed6ce5edf0a9a4e9bf79575eadfac16b2c46f1278d57755d29f21d7c6dcb4403be24b7ac7da4837c6cc9c602342a8f2b8e54883df

      • C:\Windows\SysWOW64\xxyxXNfF.dll

        Filesize

        37KB

        MD5

        6f3f3e47806e643ebe0ef26f298d6438

        SHA1

        3e47e11fec25b78189de73b9abf06cdae1fe2eb0

        SHA256

        75af970866ba003cafe11f98f90ac8df548061e911c9b4058dbd2587972afd38

        SHA512

        27af7de073dfc2d989e61b50e35cdc2a2228348de2b1da1beb6c0cccb32b2516d80e8549b4c1b6d125511105bc99a1f77e06ea3114035417104dc2a1fc341f19

      • memory/1048-0-0x0000000000400000-0x0000000000410000-memory.dmp

        Filesize

        64KB

      • memory/1048-1-0x0000000002020000-0x0000000002026000-memory.dmp

        Filesize

        24KB

      • memory/1048-7-0x0000000010000000-0x0000000010010000-memory.dmp

        Filesize

        64KB

      • memory/1048-8-0x00000000021C0000-0x00000000021C6000-memory.dmp

        Filesize

        24KB

      • memory/1048-13-0x0000000000400000-0x0000000000410000-memory.dmp

        Filesize

        64KB

      • memory/1048-14-0x0000000010000000-0x0000000010010000-memory.dmp

        Filesize

        64KB

      • memory/1048-17-0x0000000002020000-0x0000000002026000-memory.dmp

        Filesize

        24KB

      • memory/4980-23-0x0000000010000000-0x0000000010010000-memory.dmp

        Filesize

        64KB

      • memory/4980-24-0x0000000000A90000-0x0000000000A96000-memory.dmp

        Filesize

        24KB

      • memory/4980-26-0x0000000010000000-0x0000000010010000-memory.dmp

        Filesize

        64KB