Resubmissions

14/04/2025, 04:20

250414-ex92msynx2 10

14/04/2025, 03:24

250414-dydt6aztet 10

14/04/2025, 02:53

250414-ddh85sy1bs 10

13/04/2025, 19:39

250413-ydbjhssks5 10

13/04/2025, 01:50

250413-b9pdxswpt2 10

13/04/2025, 01:45

250413-b6f85swwgw 10

12/04/2025, 16:37

250412-t49rsaykv4 10

Analysis

  • max time kernel
    150s
  • max time network
    138s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20250314-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20250314-enlocale:en-usos:windows10-ltsc_2021-x64system
  • submitted
    14/04/2025, 03:24

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 17 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 24 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:2924
    • 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:232
      • 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:1756
    • 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:3088
      • 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:4592
    • C:\Windows\SysWOW64\notepad.exe
      notepad
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:5520
    • 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:4940
  • 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:2060
    • 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:1672
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2164
  • 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:5216
    • 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:5576
  • 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:4064
    • 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:3392
  • 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:4832
    • 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:3700
  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
    1⤵
      PID:5596
      • 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:1272
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
      1⤵
        PID:3568
        • 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:1604
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
        1⤵
          PID:3456
          • 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:2200
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
          1⤵
            PID:3400
            • 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:5256
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
            1⤵
              PID:4464
              • 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:2096
            • C:\Windows\system32\cmd.exe
              C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
              1⤵
                PID:2268
                • 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:2912
              • C:\Windows\system32\cmd.exe
                C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                1⤵
                  PID:3844
                  • 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:3540
                • C:\Windows\system32\cmd.exe
                  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                  1⤵
                    PID:1636
                    • 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:808
                  • C:\Windows\system32\cmd.exe
                    C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                    1⤵
                      PID:5720
                      • 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:5976
                    • C:\Windows\system32\cmd.exe
                      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                      1⤵
                        PID:4512
                        • 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:3376
                      • C:\Windows\system32\cmd.exe
                        C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                        1⤵
                          PID:2404
                          • 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:1556
                        • C:\Windows\system32\cmd.exe
                          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
                          1⤵
                            PID:1288
                            • 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:4316

                          Network

                          MITRE ATT&CK Enterprise v16

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

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

                            Filesize

                            658KB

                            MD5

                            3178fcad2d2c2f3c0f4f70aecfb18db7

                            SHA1

                            0ecad6522214f9bef4dd8f2f8eb927827bc4971c

                            SHA256

                            dd8650f0e484ba0ea4775ccce3a9644bba747ee92f1b534628525c7ceedc69f9

                            SHA512

                            57148c860850344b1086c8765c083862d57d99119914e218aca4c8e80dc9cbe48d206b6aefaea9ad5cda58a459ff5888f1bc82f6fabacd2aa81f52818cef4985

                          • memory/808-40-0x0000000000400000-0x00000000004B2000-memory.dmp

                            Filesize

                            712KB

                          • memory/1272-18-0x0000000000400000-0x00000000004B2000-memory.dmp

                            Filesize

                            712KB

                          • memory/1556-49-0x0000000000400000-0x00000000004B2000-memory.dmp

                            Filesize

                            712KB

                          • memory/1604-21-0x0000000000400000-0x00000000004B2000-memory.dmp

                            Filesize

                            712KB

                          • memory/1672-13-0x0000000000400000-0x00000000004B2000-memory.dmp

                            Filesize

                            712KB

                          • memory/1672-2-0x00000000007C0000-0x00000000007C1000-memory.dmp

                            Filesize

                            4KB

                          • memory/2096-30-0x0000000000400000-0x00000000004B2000-memory.dmp

                            Filesize

                            712KB

                          • memory/2164-3-0x0000000001310000-0x0000000001311000-memory.dmp

                            Filesize

                            4KB

                          • memory/2200-24-0x0000000000400000-0x00000000004B2000-memory.dmp

                            Filesize

                            712KB

                          • memory/2912-33-0x0000000000400000-0x00000000004B2000-memory.dmp

                            Filesize

                            712KB

                          • memory/2924-9-0x0000000000400000-0x00000000004B2000-memory.dmp

                            Filesize

                            712KB

                          • memory/2924-0-0x0000000002260000-0x0000000002261000-memory.dmp

                            Filesize

                            4KB

                          • memory/3376-46-0x0000000000400000-0x00000000004B2000-memory.dmp

                            Filesize

                            712KB

                          • memory/3392-12-0x0000000000400000-0x00000000004B2000-memory.dmp

                            Filesize

                            712KB

                          • memory/3540-36-0x0000000000400000-0x00000000004B2000-memory.dmp

                            Filesize

                            712KB

                          • memory/3700-15-0x0000000000400000-0x00000000004B2000-memory.dmp

                            Filesize

                            712KB

                          • memory/4316-52-0x0000000000400000-0x00000000004B2000-memory.dmp

                            Filesize

                            712KB

                          • memory/4940-8-0x0000000000400000-0x00000000004B2000-memory.dmp

                            Filesize

                            712KB

                          • memory/5256-27-0x0000000000400000-0x00000000004B2000-memory.dmp

                            Filesize

                            712KB

                          • memory/5520-4-0x0000000001040000-0x0000000001041000-memory.dmp

                            Filesize

                            4KB

                          • memory/5576-6-0x0000000000400000-0x00000000004B2000-memory.dmp

                            Filesize

                            712KB

                          • memory/5976-43-0x0000000000400000-0x00000000004B2000-memory.dmp

                            Filesize

                            712KB