Analysis

  • max time kernel
    150s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    20/02/2025, 09:44

General

  • Target

    JaffaCakes118_0b14225cd21bff8fc3eaa2c1f02a2170.exe

  • Size

    340KB

  • MD5

    0b14225cd21bff8fc3eaa2c1f02a2170

  • SHA1

    eca9f8b58cf005086da39710535f51e04e960a79

  • SHA256

    e66245e14577b896bd02a8a7e7d49d45df12566bc3c8e63798715a6b2067e9a7

  • SHA512

    1fca7b4fc74319a872cb0bd3ce258249905d6b01735b9c7ad4b91a9894dbe11f3dcfe4da740fcc5592204d95f919816b9b9698e284316febfd82821b9452c710

  • SSDEEP

    6144:E53+WTVqx/FEx5j8+oFBBo+8bb+L6KvJWxbzUOM+:w3+mVkU8P/S+L6mMx/VM+

Malware Config

Extracted

Family

darkcomet

Botnet

!@#clusive

C2

darkvader.zapto.org:5900

Mutex

DC_MUTEX-EBP5FS8

Attributes
  • InstallPath

    Network\scvhosts.exe

  • gencode

    K7eKFjmV3PZh

  • install

    true

  • offline_keylogger

    true

  • password

    1q2w3E$R%T

  • persistence

    true

  • reg_key

    LAN/WAN interface

rc4.plain

Signatures

  • Darkcomet

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

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

    Modifies file attributes to stop it showing in Explorer etc.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • UPX packed file 15 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

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

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 59 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0b14225cd21bff8fc3eaa2c1f02a2170.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0b14225cd21bff8fc3eaa2c1f02a2170.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2236
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0b14225cd21bff8fc3eaa2c1f02a2170.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0b14225cd21bff8fc3eaa2c1f02a2170.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Loads dropped DLL
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2372
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0b14225cd21bff8fc3eaa2c1f02a2170.exe" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2944
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0b14225cd21bff8fc3eaa2c1f02a2170.exe" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:2848
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2760
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:2296
      • C:\ProgramData\Microsoft\Windows\Start Menu\Network\scvhosts.exe
        "C:\ProgramData\Microsoft\Windows\Start Menu\Network\scvhosts.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2644
        • C:\ProgramData\Microsoft\Windows\Start Menu\Network\scvhosts.exe
          "C:\ProgramData\Microsoft\Windows\Start Menu\Network\scvhosts.exe"
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:3008
          • C:\Windows\SysWOW64\notepad.exe
            notepad
            5⤵
            • System Location Discovery: System Language Discovery
            PID:380
  • C:\Windows\SysWOW64\DllHost.exe
    C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:2384

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\Microsoft\Windows\Start Menu\Network\scvhosts.exe

    Filesize

    340KB

    MD5

    0b14225cd21bff8fc3eaa2c1f02a2170

    SHA1

    eca9f8b58cf005086da39710535f51e04e960a79

    SHA256

    e66245e14577b896bd02a8a7e7d49d45df12566bc3c8e63798715a6b2067e9a7

    SHA512

    1fca7b4fc74319a872cb0bd3ce258249905d6b01735b9c7ad4b91a9894dbe11f3dcfe4da740fcc5592204d95f919816b9b9698e284316febfd82821b9452c710

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

    Filesize

    52KB

    MD5

    68ceca01193ddcf0639e1d2f305ccb30

    SHA1

    09cd7c96ed37f52af06390d340d3b4dabb432960

    SHA256

    e75795f8d0f98c892fb5dfce4c24e1a81a6b181982912d22174bfb044ce04f98

    SHA512

    f060069c7e5ece30624b9cdd96ec4b87b3732facf8d9c6bb3899428374900faf7daf8729d5b4ec1def6c9d5fd2327729ef8b374835ae6b74def963a942d385fa

  • memory/380-50-0x0000000000080000-0x0000000000081000-memory.dmp

    Filesize

    4KB

  • memory/2236-3-0x0000000002380000-0x0000000002382000-memory.dmp

    Filesize

    8KB

  • memory/2372-16-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2372-13-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2372-5-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2372-8-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2372-14-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2372-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2372-11-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2372-15-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2372-12-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2372-7-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2372-30-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2384-4-0x0000000000120000-0x0000000000122000-memory.dmp

    Filesize

    8KB

  • memory/2644-34-0x0000000000690000-0x0000000000692000-memory.dmp

    Filesize

    8KB

  • memory/3008-45-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/3008-44-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/3008-46-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/3008-49-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/3008-48-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/3008-92-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB