Analysis

  • max time kernel
    150s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    25/08/2024, 10:09

General

  • Target

    c081f6c1e7f47df99c84033bfc3b1b7d_JaffaCakes118.exe

  • Size

    457KB

  • MD5

    c081f6c1e7f47df99c84033bfc3b1b7d

  • SHA1

    d0e18725c64e13ad26dfa7900fe67fbb1ff6327b

  • SHA256

    de56748561bdd30b47f0a64e4bbe0226771f428b1c5a793aeb109d248c672417

  • SHA512

    e3df5333233671c75ddfd7d21da345a3158038ff5786d9461b0ab28a1b5ad1eb353bc02b8650d5b7d6934b7a7443dc12078da948aa4bd5586acf4a61e5f6dd98

  • SSDEEP

    6144:eiiA/aDa4zZk1KQ01j7R7hnjlEpYofsF+B8TNoIPDQN4gKRfUW/h08hExcBQOLdu:eSaDpWKT7xhn7TNo2A4gScW/h0jx6Q6Y

Score
10/10

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.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • Modifies WinLogon 2 TTPs 2 IoCs
  • Drops file in System32 directory 7 IoCs
  • Drops file in Windows directory 8 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c081f6c1e7f47df99c84033bfc3b1b7d_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\c081f6c1e7f47df99c84033bfc3b1b7d_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Adds policy Run key to start application
    • Boot or Logon Autostart Execution: Active Setup
    • Loads dropped DLL
    • Modifies WinLogon
    • Drops file in System32 directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2552
    • C:\Windows\SysWOW64\fservice.exe
      C:\Windows\system32\fservice.exe
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1304
      • C:\Windows\services.exe
        C:\Windows\services.exe -XP
        3⤵
        • 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
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2876
        • C:\Windows\SysWOW64\NET.exe
          NET STOP srservice
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2664
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 STOP srservice
            5⤵
            • System Location Discovery: System Language Discovery
            PID:2740
        • C:\Windows\SysWOW64\NET.exe
          NET STOP navapsvc
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2716
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 STOP navapsvc
            5⤵
            • System Location Discovery: System Language Discovery
            PID:2688
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c C:\Users\Admin\AppData\Local\Temp\c081f6c1e7f47df99c84033bfc3b1b7d_JaffaCakes118.exe.bat
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:2096

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\c081f6c1e7f47df99c84033bfc3b1b7d_JaffaCakes118.exe.bat

          Filesize

          133B

          MD5

          7db595f27577f5043312abd397c9356e

          SHA1

          6e13f1e8ca4d5b01c11173e1aec5682e9d44872f

          SHA256

          84e10183a6c65ecf204100a02265823b218ee3c9dd7d9f5c301e71888ba4e61a

          SHA512

          00e0582350e77dd63cf0184faa5c7313ba565298df0fba6a821568a8acc1919211c702ff3bd773705ffbf2dfcfe7201deb5f1850021b6b68b64ea32ce437a469

        • C:\Windows\SysWOW64\fservice.exe

          Filesize

          457KB

          MD5

          c081f6c1e7f47df99c84033bfc3b1b7d

          SHA1

          d0e18725c64e13ad26dfa7900fe67fbb1ff6327b

          SHA256

          de56748561bdd30b47f0a64e4bbe0226771f428b1c5a793aeb109d248c672417

          SHA512

          e3df5333233671c75ddfd7d21da345a3158038ff5786d9461b0ab28a1b5ad1eb353bc02b8650d5b7d6934b7a7443dc12078da948aa4bd5586acf4a61e5f6dd98

        • \Windows\SysWOW64\reginv.dll

          Filesize

          36KB

          MD5

          d4a3f90e159ffbcbc4f9740de4b7f171

          SHA1

          0542f5d1e2c23dca8d90766b3a8537dc3880e5c9

          SHA256

          2200dd5f83d2fb8c5d3994206a4fa9ff34b4cbfe56ed39a9a03c954cf45d8f77

          SHA512

          5493beb50b5f7d8ec52f32718d01696916ae173456005d0c1294ce695161ce5004aff58ee3892bf5db0f9b23720146a6d3ae8ffbcbbd81f84d894fdc8cf75a94

        • \Windows\SysWOW64\winkey.dll

          Filesize

          24KB

          MD5

          43e7d9b875c921ba6be38d45540fb9dd

          SHA1

          f22a73fc0d4aa3ea6c0b8f61d974b028f308acc4

          SHA256

          f1b2b0abe844e6ba812c7f8709a463a7f6c56fa6ac38d376a0739cc3469f795b

          SHA512

          2e74e23c0875b69b82319391c392132f28f4eb45aa412805130382498ae48969a06a2b3a7528b626fa7d7ddb6b006f19f0ef8d73cf73cb9a0c0df44a21077622

        • memory/1304-41-0x0000000000400000-0x0000000000681000-memory.dmp

          Filesize

          2.5MB

        • memory/1304-27-0x0000000000400000-0x0000000000681000-memory.dmp

          Filesize

          2.5MB

        • memory/1304-16-0x0000000000400000-0x0000000000681000-memory.dmp

          Filesize

          2.5MB

        • memory/1304-40-0x00000000034E0000-0x0000000003761000-memory.dmp

          Filesize

          2.5MB

        • memory/1304-38-0x00000000034E0000-0x0000000003761000-memory.dmp

          Filesize

          2.5MB

        • memory/1304-28-0x0000000000400000-0x0000000000681000-memory.dmp

          Filesize

          2.5MB

        • memory/2552-24-0x0000000000401000-0x00000000005FA000-memory.dmp

          Filesize

          2.0MB

        • memory/2552-15-0x0000000000400000-0x0000000000681000-memory.dmp

          Filesize

          2.5MB

        • memory/2552-25-0x0000000000400000-0x0000000000681000-memory.dmp

          Filesize

          2.5MB

        • memory/2552-13-0x0000000003190000-0x0000000003411000-memory.dmp

          Filesize

          2.5MB

        • memory/2552-0-0x0000000000400000-0x0000000000681000-memory.dmp

          Filesize

          2.5MB

        • memory/2552-2-0x0000000000400000-0x0000000000681000-memory.dmp

          Filesize

          2.5MB

        • memory/2552-1-0x0000000000401000-0x00000000005FA000-memory.dmp

          Filesize

          2.0MB

        • memory/2876-39-0x0000000000400000-0x0000000000681000-memory.dmp

          Filesize

          2.5MB

        • memory/2876-42-0x0000000000400000-0x0000000000681000-memory.dmp

          Filesize

          2.5MB

        • memory/2876-44-0x0000000000400000-0x0000000000681000-memory.dmp

          Filesize

          2.5MB

        • memory/2876-52-0x0000000000400000-0x0000000000681000-memory.dmp

          Filesize

          2.5MB

        • memory/2876-53-0x0000000000400000-0x0000000000681000-memory.dmp

          Filesize

          2.5MB

        • memory/2876-54-0x0000000000400000-0x0000000000681000-memory.dmp

          Filesize

          2.5MB