Analysis

  • max time kernel
    51s
  • max time network
    51s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-06-2024 03:11

General

  • Target

    14778af23a015e14c365e2e3f99128b7_JaffaCakes118.exe

  • Size

    661KB

  • MD5

    14778af23a015e14c365e2e3f99128b7

  • SHA1

    963f99b8f67478c1d35344a191db4e8d05401ca9

  • SHA256

    37ef6ca609a8b945cdcb5f40fe3f2c06fcfb7df107af8890332503b66392a2e6

  • SHA512

    7457c570cad97d99483b5b6a109e64432d18dde875a843bdfae951c2efb33fd1d78a4f0dc2a6c3472a802e7f185fb83b0838a1b8f9c1487af5e2fae7d9928752

  • SSDEEP

    12288:IXhpvNWw276S/DuoeFcfbmiJ99VPhYR5MTSHvLenELrWv1lZw4JuMkMh/fy452U2:unAw2WWeFcfbP9VPSPMTSPL/rWvzq4Jm

Malware Config

Extracted

Family

darkcomet

Botnet

Furkan

C2

furkian.zapto.org:1604

Mutex

DC_MUTEX-VDNJCF8

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    XDKisQrYB60J

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Signatures

  • Darkcomet

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

  • Modifies WinLogon for persistence 2 TTPs 4 IoCs
  • Sets file to hidden 1 TTPs 4 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Checks computer location settings 2 TTPs 4 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Drops file in System32 directory 16 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\14778af23a015e14c365e2e3f99128b7_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\14778af23a015e14c365e2e3f99128b7_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Adds Run key to start application
    • Drops file in System32 directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2364
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\14778af23a015e14c365e2e3f99128b7_JaffaCakes118.exe" +s +h
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4388
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp\14778af23a015e14c365e2e3f99128b7_JaffaCakes118.exe" +s +h
        3⤵
        • Sets file to hidden
        • Views/modifies file attributes
        PID:2988
    • C:\Windows\SysWOW64\notepad.exe
      notepad
      2⤵
      • Deletes itself
      PID:744
    • C:\Windows\SysWOW64\MSDCSC\msdcsc.exe
      "C:\Windows\system32\MSDCSC\msdcsc.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Checks computer location settings
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in System32 directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4452
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Windows\SysWOW64\MSDCSC\msdcsc.exe" +s +h
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4688
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Windows\SysWOW64\MSDCSC\msdcsc.exe" +s +h
          4⤵
          • Sets file to hidden
          • Drops file in System32 directory
          • Views/modifies file attributes
          PID:4040
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
          PID:752
        • C:\Windows\SysWOW64\MSDCSC\XDKisQrYB60J\msdcsc.exe
          "C:\Windows\system32\MSDCSC\XDKisQrYB60J\msdcsc.exe"
          3⤵
          • Modifies WinLogon for persistence
          • Checks computer location settings
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in System32 directory
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4612
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /k attrib "C:\Windows\SysWOW64\MSDCSC\XDKisQrYB60J\msdcsc.exe" +s +h
            4⤵
              PID:4864
              • C:\Windows\SysWOW64\attrib.exe
                attrib "C:\Windows\SysWOW64\MSDCSC\XDKisQrYB60J\msdcsc.exe" +s +h
                5⤵
                • Sets file to hidden
                • Drops file in System32 directory
                • Views/modifies file attributes
                PID:1536
            • C:\Windows\SysWOW64\notepad.exe
              notepad
              4⤵
                PID:5056
              • C:\Windows\SysWOW64\MSDCSC\XDKisQrYB60J\XDKisQrYB60J\msdcsc.exe
                "C:\Windows\system32\MSDCSC\XDKisQrYB60J\XDKisQrYB60J\msdcsc.exe"
                4⤵
                • Modifies WinLogon for persistence
                • Checks computer location settings
                • Executes dropped EXE
                • Adds Run key to start application
                • Drops file in System32 directory
                • Modifies registry class
                PID:2076
                • C:\Windows\SysWOW64\cmd.exe
                  "C:\Windows\System32\cmd.exe" /k attrib "C:\Windows\SysWOW64\MSDCSC\XDKisQrYB60J\XDKisQrYB60J\msdcsc.exe" +s +h
                  5⤵
                    PID:2072
                    • C:\Windows\SysWOW64\attrib.exe
                      attrib "C:\Windows\SysWOW64\MSDCSC\XDKisQrYB60J\XDKisQrYB60J\msdcsc.exe" +s +h
                      6⤵
                      • Sets file to hidden
                      • Drops file in System32 directory
                      • Views/modifies file attributes
                      PID:2256
                  • C:\Windows\SysWOW64\notepad.exe
                    notepad
                    5⤵
                      PID:3184

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

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

              Filesize

              661KB

              MD5

              14778af23a015e14c365e2e3f99128b7

              SHA1

              963f99b8f67478c1d35344a191db4e8d05401ca9

              SHA256

              37ef6ca609a8b945cdcb5f40fe3f2c06fcfb7df107af8890332503b66392a2e6

              SHA512

              7457c570cad97d99483b5b6a109e64432d18dde875a843bdfae951c2efb33fd1d78a4f0dc2a6c3472a802e7f185fb83b0838a1b8f9c1487af5e2fae7d9928752

            • memory/744-4-0x0000000001370000-0x0000000001371000-memory.dmp

              Filesize

              4KB

            • memory/2076-55-0x0000000000400000-0x00000000004B5000-memory.dmp

              Filesize

              724KB

            • memory/2364-0-0x0000000002140000-0x0000000002141000-memory.dmp

              Filesize

              4KB

            • memory/2364-15-0x0000000000400000-0x00000000004B5000-memory.dmp

              Filesize

              724KB

            • memory/4452-19-0x00000000022D0000-0x00000000022D1000-memory.dmp

              Filesize

              4KB

            • memory/4452-31-0x0000000000400000-0x00000000004B5000-memory.dmp

              Filesize

              724KB

            • memory/4612-47-0x0000000000400000-0x00000000004B5000-memory.dmp

              Filesize

              724KB