Analysis

  • max time kernel
    150s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    23-06-2024 00:27

General

  • Target

    0492f8c8547711f75e0ab55be38474d8_JaffaCakes118.exe

  • Size

    1.5MB

  • MD5

    0492f8c8547711f75e0ab55be38474d8

  • SHA1

    8ce0c24d626f4f72d87d45937aadbba964960cc3

  • SHA256

    99ed9696332eab95e0de439fa61c1f7e6bb8235ec5e40b679bb003dd7413500a

  • SHA512

    58ed8415a0448fbfc5c75c3e105e06ed8cac7c7dd29a2d4e7e9d969f44e235c77a2cec27e313079250f521f33ce69d1654d438cd99be3c86689cc2a467ad16fb

  • SSDEEP

    24576:SqjN1QF2EgNbpSrAg2hrrBoBKNsmNHRilFSqdvwsH6qdfmDwY5neO:Sqh6F2Eaplv6BiHwDR7m8ieO

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Adds policy Run key to start application 2 TTPs 4 IoCs
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 5 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • ASPack v2.12-2.42 1 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 8 IoCs
  • UPX packed file 25 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Unexpected DNS network traffic destination 2 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Modifies WinLogon 2 TTPs 2 IoCs
  • Drops file in System32 directory 7 IoCs
  • Drops file in Windows directory 8 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0492f8c8547711f75e0ab55be38474d8_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\0492f8c8547711f75e0ab55be38474d8_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2176
    • C:\Users\Admin\AppData\Local\Temp\Exporer32.exe
      "C:\Users\Admin\AppData\Local\Temp\Exporer32.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Adds policy Run key to start application
      • Boot or Logon Autostart Execution: Active Setup
      • Executes dropped EXE
      • Loads dropped DLL
      • Modifies WinLogon
      • Drops file in System32 directory
      • Drops file in Windows directory
      • Suspicious use of WriteProcessMemory
      PID:2764
      • C:\Windows\SysWOW64\fservice.exe
        C:\Windows\system32\fservice.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in System32 directory
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:2636
        • C:\Windows\services.exe
          C:\Windows\services.exe -XP
          4⤵
          • Modifies WinLogon for persistence
          • Adds policy Run key to start application
          • Boot or Logon Autostart Execution: Active Setup
          • Executes dropped EXE
          • Loads dropped DLL
          • Modifies WinLogon
          • Drops file in System32 directory
          • Drops file in Windows directory
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2656
          • C:\Windows\SysWOW64\NET.exe
            NET STOP srservice
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:2536
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 STOP srservice
              6⤵
                PID:2996
            • C:\Windows\SysWOW64\NET.exe
              NET STOP navapsvc
              5⤵
              • Suspicious use of WriteProcessMemory
              PID:2548
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 STOP navapsvc
                6⤵
                  PID:3016
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c C:\Users\Admin\AppData\Local\Temp\Exporer32.exe.bat
            3⤵
              PID:2880

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\Exporer32.exe.bat

          Filesize

          133B

          MD5

          e83340ddc821c94bf7927e4c03855430

          SHA1

          e58d3d9aa5c582aacd499472c70f1b44b1e58237

          SHA256

          1f4cb7f8aba8f62f950364993929c564dd1f717fbc97f0686c8735398d4a7b1f

          SHA512

          34ccad0991f1bf1cb15ed21a7a4d99265bd44916780049e7c99093f40fef2a008e99799a3c770797a950ca9befc1b6f34c3520b17f53575a120acb4b612d24c8

        • \Users\Admin\AppData\Local\Temp\Exporer32.exe

          Filesize

          342KB

          MD5

          2403a5c1d025497c9b65f738fae744be

          SHA1

          2e66befa455197f49b444697c9e8a32a72edf994

          SHA256

          eb26194e0129d527ff6d9bdab894af9aaa7685273bf5ba6b75064b1803a3fb06

          SHA512

          a0a1b14a9649799629fd61d4e45823f347a6f82d8d91ad63c3c651be2a57723bb990181bc7e473a1752397c91a1d5227d303b1345f9691a6c6709ce1b0e5383a

        • \Windows\SysWOW64\reginv.dll

          Filesize

          36KB

          MD5

          562e0d01d6571fa2251a1e9f54c6cc69

          SHA1

          83677ad3bc630aa6327253c7b3deffbd4a8ce905

          SHA256

          c5b1d800c86d550c0b68c57c0d9911c1dd21df9e5e37e9e7bc032b5e66fdebe6

          SHA512

          166e132432eca24061f7e7d0c58c0b286e971ae2bc50f7c890b7707dd5dede19fcd83a5f79b6fd3f93dd691e07ad9bc1bd05fe82ccaade1610282188571585ea

        • \Windows\SysWOW64\winkey.dll

          Filesize

          13KB

          MD5

          b4c72da9fd1a0dcb0698b7da97daa0cd

          SHA1

          b25a79e8ea4c723c58caab83aed6ea48de7ed759

          SHA256

          45d266269634ba2de70f179a26d7224111e677e66b38dff2802851b71ce4458f

          SHA512

          f5f184416c5381d275bc093c9275e9fdb35c58e2c401d188aef097950013de6e43269da5d4dd5e7baea34735bd7de664d15fe487b2292fd66926c9845b0cd066

        • memory/2176-4-0x0000000000401000-0x0000000000414000-memory.dmp

          Filesize

          76KB

        • memory/2176-14-0x0000000005C10000-0x0000000005E0C000-memory.dmp

          Filesize

          2.0MB

        • memory/2176-1-0x0000000000260000-0x0000000000354000-memory.dmp

          Filesize

          976KB

        • memory/2176-16-0x0000000000401000-0x0000000000414000-memory.dmp

          Filesize

          76KB

        • memory/2176-15-0x0000000000400000-0x000000000052E000-memory.dmp

          Filesize

          1.2MB

        • memory/2176-0-0x0000000000360000-0x0000000000361000-memory.dmp

          Filesize

          4KB

        • memory/2636-65-0x0000000000400000-0x00000000005FC000-memory.dmp

          Filesize

          2.0MB

        • memory/2636-33-0x0000000000400000-0x00000000005FC000-memory.dmp

          Filesize

          2.0MB

        • memory/2636-34-0x0000000000400000-0x00000000005FC000-memory.dmp

          Filesize

          2.0MB

        • memory/2636-43-0x0000000003420000-0x000000000361C000-memory.dmp

          Filesize

          2.0MB

        • memory/2656-79-0x0000000000400000-0x00000000005FC000-memory.dmp

          Filesize

          2.0MB

        • memory/2656-85-0x0000000000400000-0x00000000005FC000-memory.dmp

          Filesize

          2.0MB

        • memory/2656-46-0x0000000000400000-0x00000000005FC000-memory.dmp

          Filesize

          2.0MB

        • memory/2656-97-0x0000000000400000-0x00000000005FC000-memory.dmp

          Filesize

          2.0MB

        • memory/2656-95-0x0000000000400000-0x00000000005FC000-memory.dmp

          Filesize

          2.0MB

        • memory/2656-93-0x0000000000400000-0x00000000005FC000-memory.dmp

          Filesize

          2.0MB

        • memory/2656-91-0x0000000000400000-0x00000000005FC000-memory.dmp

          Filesize

          2.0MB

        • memory/2656-71-0x0000000010000000-0x000000001000B000-memory.dmp

          Filesize

          44KB

        • memory/2656-70-0x0000000000400000-0x00000000005FC000-memory.dmp

          Filesize

          2.0MB

        • memory/2656-72-0x0000000000400000-0x00000000005FC000-memory.dmp

          Filesize

          2.0MB

        • memory/2656-74-0x0000000000400000-0x00000000005FC000-memory.dmp

          Filesize

          2.0MB

        • memory/2656-75-0x0000000000400000-0x00000000005FC000-memory.dmp

          Filesize

          2.0MB

        • memory/2656-77-0x0000000000400000-0x00000000005FC000-memory.dmp

          Filesize

          2.0MB

        • memory/2656-89-0x0000000000400000-0x00000000005FC000-memory.dmp

          Filesize

          2.0MB

        • memory/2656-81-0x0000000000400000-0x00000000005FC000-memory.dmp

          Filesize

          2.0MB

        • memory/2656-83-0x0000000000400000-0x00000000005FC000-memory.dmp

          Filesize

          2.0MB

        • memory/2656-49-0x0000000010000000-0x000000001000B000-memory.dmp

          Filesize

          44KB

        • memory/2656-87-0x0000000000400000-0x00000000005FC000-memory.dmp

          Filesize

          2.0MB

        • memory/2764-17-0x0000000000400000-0x00000000005FC000-memory.dmp

          Filesize

          2.0MB

        • memory/2764-67-0x0000000000400000-0x00000000005FC000-memory.dmp

          Filesize

          2.0MB

        • memory/2764-23-0x0000000000400000-0x00000000005FC000-memory.dmp

          Filesize

          2.0MB

        • memory/2764-31-0x0000000003270000-0x000000000346C000-memory.dmp

          Filesize

          2.0MB

        • memory/2764-30-0x0000000003270000-0x000000000346C000-memory.dmp

          Filesize

          2.0MB