Analysis

  • max time kernel
    34s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    27-06-2024 11:52

General

  • Target

    15e79e75f052a82d3e1a2cd88028596f_JaffaCakes118.exe

  • Size

    1.3MB

  • MD5

    15e79e75f052a82d3e1a2cd88028596f

  • SHA1

    ec3f2e8e2fe31d232bd45d7d54c79dbe81c47994

  • SHA256

    938bfda0209c6bb2e28e0094245a0ce708c75f19b42a557054d9a1efde1b1335

  • SHA512

    8b425d73fb21de18b8fa549a2719cc22da45e0eccd45c1168ee2ffdfd26dd1db3090a0ebd1eb28608e7dad6d1f60de54246f232579c134e779d4a9114ff16ab3

  • SSDEEP

    24576:1BjwYUcORkNuE9agxxs3HAfpnJ+xxxgQUSFKJnNiu/J5tL:qcuE9xxs3HAB8xTflFKJNx/VL

Malware Config

Signatures

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Sets file to hidden 1 TTPs 1 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 7 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 47 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 45 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\15e79e75f052a82d3e1a2cd88028596f_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\15e79e75f052a82d3e1a2cd88028596f_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1992
    • C:\ProgramData\winlogon.exe
      C:\ProgramData\winlogon.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2976
      • C:\Users\Admin\AppData\Local\Temp\ephir.exe
        "C:\Users\Admin\AppData\Local\Temp\ephir.exe"
        3⤵
        • Modifies WinLogon for persistence
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2552
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\ephir.exe" +s +h
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2428
          • C:\Windows\SysWOW64\attrib.exe
            attrib "C:\Users\Admin\AppData\Local\Temp\ephir.exe" +s +h
            5⤵
            • Sets file to hidden
            • Views/modifies file attributes
            PID:2796
        • C:\Windupdt\winupdate.exe
          "C:\Windupdt\winupdate.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:1656
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 5 > NUL&del "C:\Users\Admin\AppData\Local\Temp\ephir.exe"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1864
          • C:\Windows\SysWOW64\PING.EXE
            ping 127.0.0.1 -n 5
            5⤵
            • Runs ping.exe
            PID:648
  • C:\Windows\SysWOW64\DllHost.exe
    C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
    1⤵
    • Suspicious use of FindShellTrayWindow
    PID:2424

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Sarahlovex.jpg

    Filesize

    32KB

    MD5

    2de3403a72fd77a82f48e40237a105a0

    SHA1

    95aebc031614c68585b229b29fe3690d57de731d

    SHA256

    aca69786ef712a7584472dfb0e12ce76845bc717d12642a6f1c7de7f2862a4b9

    SHA512

    b84e1aa98c7f5c5819ae8aec4a180b2bfc0c2d6e6bc0fa057c11069b9edd68c14494141f8972fac696c119e33e536a58391fced23ad4c7db6b70b4916a033b89

  • \ProgramData\winlogon.exe

    Filesize

    1.1MB

    MD5

    34aa912defa18c2c129f1e09d75c1d7e

    SHA1

    9c3046324657505a30ecd9b1fdb46c05bde7d470

    SHA256

    6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

    SHA512

    d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

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

    Filesize

    648KB

    MD5

    33c3c97354fadb72aeb3af19215a9c0b

    SHA1

    e0e388a7b42facdfd4bb5c6e7466f553575f3d43

    SHA256

    92d939bdbf1517dba637996aa25ab692f1c00b9465f19bb85ceaa09f5545352e

    SHA512

    33d4d18b1b206458f8acf09441ad263a2019639a2fac13acf4725a766335be2aa44c059abfcd10a8dd04f23a947f413f514920e8134d0087275a1779f06dca7e

  • memory/1656-45-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/1656-44-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/1992-1-0x00000000741A0000-0x000000007474B000-memory.dmp

    Filesize

    5.7MB

  • memory/1992-2-0x00000000741A0000-0x000000007474B000-memory.dmp

    Filesize

    5.7MB

  • memory/1992-16-0x00000000741A0000-0x000000007474B000-memory.dmp

    Filesize

    5.7MB

  • memory/1992-0-0x00000000741A1000-0x00000000741A2000-memory.dmp

    Filesize

    4KB

  • memory/2424-30-0x0000000000220000-0x0000000000222000-memory.dmp

    Filesize

    8KB

  • memory/2552-39-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/2976-31-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/2976-29-0x00000000022A0000-0x00000000022A2000-memory.dmp

    Filesize

    8KB

  • memory/2976-10-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/2976-11-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/2976-8-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB