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14/04/2025, 04:20

250414-ex92msynx2 10

14/04/2025, 03:24

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14/04/2025, 02:53

250414-ddh85sy1bs 10

13/04/2025, 19:39

250413-ydbjhssks5 10

13/04/2025, 01:50

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13/04/2025, 01:45

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12/04/2025, 16:37

250412-t49rsaykv4 10

Analysis

  • max time kernel
    149s
  • max time network
    135s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20250314-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20250314-enlocale:en-usos:windows10-ltsc_2021-x64system
  • submitted
    13/04/2025, 01:50

General

  • Target

    3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe

  • Size

    658KB

  • MD5

    3178fcad2d2c2f3c0f4f70aecfb18db7

  • SHA1

    0ecad6522214f9bef4dd8f2f8eb927827bc4971c

  • SHA256

    dd8650f0e484ba0ea4775ccce3a9644bba747ee92f1b534628525c7ceedc69f9

  • SHA512

    57148c860850344b1086c8765c083862d57d99119914e218aca4c8e80dc9cbe48d206b6aefaea9ad5cda58a459ff5888f1bc82f6fabacd2aa81f52818cef4985

  • SSDEEP

    12288:+9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hV:KZ1xuVVjfFoynPaVBUR8f+kN10EBP

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

127.0.0.1:1604

Mutex

DC_MUTEX-7X99PTF

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    DNgeskLTppzX

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    System32.dll

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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 18 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 25 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5364
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe" +s +h
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5232
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp\3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe" +s +h
        3⤵
        • Sets file to hidden
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:4944
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5244
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • Sets file to hidden
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:4840
    • C:\Windows\SysWOW64\notepad.exe
      notepad
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:5132
    • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
      "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:420
  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3140
    • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
      C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
      2⤵
      • 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:5556
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3104
  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4788
    • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
      C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:4828
  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2024
    • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
      C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2396
  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4680
    • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
      C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3780
  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
    1⤵
      PID:5272
      • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
        C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
        2⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4492
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
      1⤵
        PID:1504
        • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
          C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
          2⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:5788
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
        1⤵
          PID:4296
          • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
            C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
            2⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            PID:2220
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
          1⤵
            PID:3984
            • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
              C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
              2⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              PID:440
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
            1⤵
              PID:1592
              • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                2⤵
                • Executes dropped EXE
                • System Location Discovery: System Language Discovery
                PID:1708
            • C:\Windows\system32\cmd.exe
              C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
              1⤵
                PID:1804
                • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                  C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                  2⤵
                  • Executes dropped EXE
                  • System Location Discovery: System Language Discovery
                  PID:1252
              • C:\Windows\system32\cmd.exe
                C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                1⤵
                  PID:1716
                  • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                    C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                    2⤵
                    • Executes dropped EXE
                    • System Location Discovery: System Language Discovery
                    PID:416
                • C:\Windows\system32\cmd.exe
                  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                  1⤵
                    PID:5512
                    • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                      C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                      2⤵
                      • Executes dropped EXE
                      • System Location Discovery: System Language Discovery
                      PID:3008
                  • C:\Windows\system32\cmd.exe
                    C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                    1⤵
                      PID:5724
                      • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                        C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                        2⤵
                        • Executes dropped EXE
                        • System Location Discovery: System Language Discovery
                        PID:5376
                    • C:\Windows\system32\cmd.exe
                      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                      1⤵
                        PID:3436
                        • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                          C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                          2⤵
                          • Executes dropped EXE
                          • System Location Discovery: System Language Discovery
                          PID:5524
                      • C:\Windows\system32\cmd.exe
                        C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                        1⤵
                          PID:5692
                          • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                            C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                            2⤵
                            • Executes dropped EXE
                            • Adds Run key to start application
                            • System Location Discovery: System Language Discovery
                            PID:5124
                        • C:\Windows\system32\cmd.exe
                          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                          1⤵
                            PID:5820
                            • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                              C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                              2⤵
                              • Executes dropped EXE
                              • System Location Discovery: System Language Discovery
                              PID:4568
                          • C:\Windows\system32\cmd.exe
                            C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                            1⤵
                              PID:1840
                              • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                                C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                                2⤵
                                • Executes dropped EXE
                                • System Location Discovery: System Language Discovery
                                PID:6032

                            Network

                            MITRE ATT&CK Enterprise v16

                            Replay Monitor

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                            Downloads

                            • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe

                              Filesize

                              658KB

                              MD5

                              3178fcad2d2c2f3c0f4f70aecfb18db7

                              SHA1

                              0ecad6522214f9bef4dd8f2f8eb927827bc4971c

                              SHA256

                              dd8650f0e484ba0ea4775ccce3a9644bba747ee92f1b534628525c7ceedc69f9

                              SHA512

                              57148c860850344b1086c8765c083862d57d99119914e218aca4c8e80dc9cbe48d206b6aefaea9ad5cda58a459ff5888f1bc82f6fabacd2aa81f52818cef4985

                            • memory/416-37-0x0000000000400000-0x00000000004B2000-memory.dmp

                              Filesize

                              712KB

                            • memory/420-8-0x0000000000400000-0x00000000004B2000-memory.dmp

                              Filesize

                              712KB

                            • memory/440-28-0x0000000000400000-0x00000000004B2000-memory.dmp

                              Filesize

                              712KB

                            • memory/1252-34-0x0000000000400000-0x00000000004B2000-memory.dmp

                              Filesize

                              712KB

                            • memory/1708-31-0x0000000000400000-0x00000000004B2000-memory.dmp

                              Filesize

                              712KB

                            • memory/2220-25-0x0000000000400000-0x00000000004B2000-memory.dmp

                              Filesize

                              712KB

                            • memory/2396-14-0x0000000000400000-0x00000000004B2000-memory.dmp

                              Filesize

                              712KB

                            • memory/3008-41-0x0000000000400000-0x00000000004B2000-memory.dmp

                              Filesize

                              712KB

                            • memory/3104-4-0x00000000004A0000-0x00000000004A1000-memory.dmp

                              Filesize

                              4KB

                            • memory/3780-16-0x0000000000400000-0x00000000004B2000-memory.dmp

                              Filesize

                              712KB

                            • memory/4492-19-0x0000000000400000-0x00000000004B2000-memory.dmp

                              Filesize

                              712KB

                            • memory/4568-52-0x0000000000400000-0x00000000004B2000-memory.dmp

                              Filesize

                              712KB

                            • memory/4828-6-0x0000000000400000-0x00000000004B2000-memory.dmp

                              Filesize

                              712KB

                            • memory/5124-50-0x0000000000400000-0x00000000004B2000-memory.dmp

                              Filesize

                              712KB

                            • memory/5132-3-0x00000000009E0000-0x00000000009E1000-memory.dmp

                              Filesize

                              4KB

                            • memory/5364-9-0x0000000000400000-0x00000000004B2000-memory.dmp

                              Filesize

                              712KB

                            • memory/5364-0-0x0000000002270000-0x0000000002271000-memory.dmp

                              Filesize

                              4KB

                            • memory/5376-44-0x0000000000400000-0x00000000004B2000-memory.dmp

                              Filesize

                              712KB

                            • memory/5524-47-0x0000000000400000-0x00000000004B2000-memory.dmp

                              Filesize

                              712KB

                            • memory/5556-11-0x00000000007C0000-0x00000000007C1000-memory.dmp

                              Filesize

                              4KB

                            • memory/5556-2-0x00000000007C0000-0x00000000007C1000-memory.dmp

                              Filesize

                              4KB

                            • memory/5556-13-0x0000000000400000-0x00000000004B2000-memory.dmp

                              Filesize

                              712KB

                            • memory/5788-22-0x0000000000400000-0x00000000004B2000-memory.dmp

                              Filesize

                              712KB

                            • memory/6032-55-0x0000000000400000-0x00000000004B2000-memory.dmp

                              Filesize

                              712KB