Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-12-2024 23:57

General

  • Target

    e8e5c9e651f358d8c24c8f6757f164ed_JaffaCakes118.exe

  • Size

    2.2MB

  • MD5

    e8e5c9e651f358d8c24c8f6757f164ed

  • SHA1

    74296bf4fceba6d906055c4fedc51b75f4f99f0d

  • SHA256

    dcff421c7cd4cc77eda4ce513f23ef47cea8784979375ed62a3a78672c590138

  • SHA512

    8605b1b3ecb56450fe1b57aa6a62fc9a18045025b4a1cc7094216da9e86b8c8b19d3f243a8e6a696ec502c80f2837b7350c0f5e0da66014a4d48f0e5784e6c9d

  • SSDEEP

    49152:vYb/OBImCOQewFay6GKEIhfb0wyI9Ko2P4RP:wbCImCOQewFay6GQhfb0FI9KXk

Malware Config

Extracted

Family

darkcomet

Botnet

Novo

C2

tutoriais157.no-ip.org:1604

Mutex

DC_MUTEX-VRFY1RF

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    MlBzybfvaNEy

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies firewall policy service 3 TTPs 3 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 4 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in System32 directory 4 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e8e5c9e651f358d8c24c8f6757f164ed_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e8e5c9e651f358d8c24c8f6757f164ed_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1644
    • C:\Users\Admin\AppData\Local\Temp\e8e5c9e651f358d8c24c8f6757f164ed_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\e8e5c9e651f358d8c24c8f6757f164ed_JaffaCakes118.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2308
      • C:\Users\Admin\AppData\Local\Temp\e8e5c9e651f358d8c24c8f6757f164ed_JaffaCakes118.exe
        C:\Users\Admin\AppData\Local\Temp\e8e5c9e651f358d8c24c8f6757f164ed_JaffaCakes118.exe
        3⤵
        • Modifies WinLogon for persistence
        • Checks computer location settings
        • Adds Run key to start application
        • Drops file in System32 directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2752
        • C:\Users\Admin\AppData\Local\Temp\H3R0 INJECTOR.EXE
          "C:\Users\Admin\AppData\Local\Temp\H3R0 INJECTOR.EXE"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:4580
        • C:\Windows\SysWOW64\MSDCSC\msdcsc.exe
          "C:\Windows\system32\MSDCSC\msdcsc.exe"
          4⤵
          • Executes dropped EXE
          • Drops file in System32 directory
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:5100
          • C:\Windows\SysWOW64\MSDCSC\msdcsc.exe
            "C:\Windows\SysWOW64\MSDCSC\msdcsc.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:2800
            • C:\Windows\SysWOW64\MSDCSC\msdcsc.exe
              C:\Windows\SysWOW64\MSDCSC\msdcsc.exe
              6⤵
              • Modifies firewall policy service
              • Disables RegEdit via registry modification
              • Executes dropped EXE
              • Adds Run key to start application
              • System Location Discovery: System Language Discovery
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:1780
              • C:\Windows\SysWOW64\notepad.exe
                notepad
                7⤵
                • System Location Discovery: System Language Discovery
                PID:1996

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\H3R0 INJECTOR.EXE

    Filesize

    1.5MB

    MD5

    4274aa3fb911f5621f34595e58e50a7b

    SHA1

    d029a0e95a96be0571ceff311c562e52eb878c28

    SHA256

    5a109456ccb1a4435cf6664086f3312820550af2687fc2192712323f13f8f7f1

    SHA512

    f7ddb71f80a2e52e1d6068758a1fd220e023889245d1df981511b24a60bcde2d7800ad395be099232693f618a07a800d5868b582078242d89a9b59329847c312

  • C:\Windows\SysWOW64\MSDCSC\msdcsc.exe

    Filesize

    2.2MB

    MD5

    e8e5c9e651f358d8c24c8f6757f164ed

    SHA1

    74296bf4fceba6d906055c4fedc51b75f4f99f0d

    SHA256

    dcff421c7cd4cc77eda4ce513f23ef47cea8784979375ed62a3a78672c590138

    SHA512

    8605b1b3ecb56450fe1b57aa6a62fc9a18045025b4a1cc7094216da9e86b8c8b19d3f243a8e6a696ec502c80f2837b7350c0f5e0da66014a4d48f0e5784e6c9d

  • memory/1644-0-0x0000000000400000-0x000000000064D000-memory.dmp

    Filesize

    2.3MB

  • memory/1644-6-0x0000000000400000-0x000000000064D000-memory.dmp

    Filesize

    2.3MB

  • memory/1780-69-0x0000000000400000-0x000000000063A000-memory.dmp

    Filesize

    2.2MB

  • memory/1780-73-0x0000000000400000-0x000000000063A000-memory.dmp

    Filesize

    2.2MB

  • memory/1780-87-0x0000000000400000-0x000000000063A000-memory.dmp

    Filesize

    2.2MB

  • memory/1780-85-0x0000000000400000-0x000000000063A000-memory.dmp

    Filesize

    2.2MB

  • memory/1780-83-0x0000000000400000-0x000000000063A000-memory.dmp

    Filesize

    2.2MB

  • memory/1780-81-0x0000000000400000-0x000000000063A000-memory.dmp

    Filesize

    2.2MB

  • memory/1780-79-0x0000000000400000-0x000000000063A000-memory.dmp

    Filesize

    2.2MB

  • memory/1780-77-0x0000000000400000-0x000000000063A000-memory.dmp

    Filesize

    2.2MB

  • memory/1780-75-0x0000000000400000-0x000000000063A000-memory.dmp

    Filesize

    2.2MB

  • memory/1780-71-0x0000000000400000-0x000000000063A000-memory.dmp

    Filesize

    2.2MB

  • memory/1780-67-0x0000000000400000-0x000000000063A000-memory.dmp

    Filesize

    2.2MB

  • memory/1780-65-0x0000000000400000-0x000000000063A000-memory.dmp

    Filesize

    2.2MB

  • memory/1780-63-0x0000000000400000-0x000000000063A000-memory.dmp

    Filesize

    2.2MB

  • memory/1780-61-0x0000000000400000-0x000000000063A000-memory.dmp

    Filesize

    2.2MB

  • memory/1780-57-0x0000000000400000-0x000000000063A000-memory.dmp

    Filesize

    2.2MB

  • memory/1780-58-0x0000000000400000-0x000000000063A000-memory.dmp

    Filesize

    2.2MB

  • memory/1780-55-0x0000000000400000-0x000000000063A000-memory.dmp

    Filesize

    2.2MB

  • memory/1996-56-0x00000000009C0000-0x00000000009C1000-memory.dmp

    Filesize

    4KB

  • memory/2308-3-0x0000000000400000-0x0000000000408000-memory.dmp

    Filesize

    32KB

  • memory/2308-12-0x0000000000400000-0x0000000000408000-memory.dmp

    Filesize

    32KB

  • memory/2308-5-0x0000000000400000-0x0000000000408000-memory.dmp

    Filesize

    32KB

  • memory/2752-15-0x0000000000400000-0x000000000063A000-memory.dmp

    Filesize

    2.2MB

  • memory/2752-9-0x0000000000400000-0x000000000063A000-memory.dmp

    Filesize

    2.2MB

  • memory/2752-54-0x0000000000400000-0x000000000063A000-memory.dmp

    Filesize

    2.2MB

  • memory/2752-10-0x0000000000400000-0x000000000063A000-memory.dmp

    Filesize

    2.2MB

  • memory/2752-14-0x0000000000400000-0x000000000063A000-memory.dmp

    Filesize

    2.2MB

  • memory/2752-13-0x0000000000400000-0x000000000063A000-memory.dmp

    Filesize

    2.2MB

  • memory/2800-43-0x0000000000400000-0x0000000000408000-memory.dmp

    Filesize

    32KB

  • memory/2800-52-0x0000000000400000-0x0000000000408000-memory.dmp

    Filesize

    32KB

  • memory/4580-27-0x0000000000400000-0x0000000000591000-memory.dmp

    Filesize

    1.6MB

  • memory/4580-59-0x0000000000400000-0x0000000000591000-memory.dmp

    Filesize

    1.6MB

  • memory/5100-47-0x0000000000400000-0x000000000064D000-memory.dmp

    Filesize

    2.3MB

  • memory/5100-38-0x0000000000400000-0x000000000064D000-memory.dmp

    Filesize

    2.3MB