Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-01-2025 08:10

General

  • Target

    Simple BTC Trader v1.3/Simple BTC Trader v1.3 [Trial Version].exe

  • Size

    1.0MB

  • MD5

    d493ef686bd337ee99459886c3ef6f93

  • SHA1

    e0b99011aec22e73f0eb362d503e724567b2ae33

  • SHA256

    fc46fddea9f07579ff17ca2045151449488c44c30435df61f560797d9e4a1bff

  • SHA512

    96074111f22fbb6c7d13a42d0fc6a60a50f98e3e0ddc79458469b6edcec24c596bc5966419516225fc26fa9b2bf85c9dd6ce6933d4cbb42faf41d1aa3c16068c

  • SSDEEP

    12288:rhE5xyytgDbV5WC2Mry6Wzgo0Rl7yX5vWL1wajud:NE5Yd5ZrG2lO+1O

Malware Config

Extracted

Family

darkcomet

Botnet

Coin

C2

89.173.7.7:200

Mutex

DC_MUTEX-YG8ENTR

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    g43hiCLbWeZk

  • 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
  • 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 4 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • 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.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Simple BTC Trader v1.3\Simple BTC Trader v1.3 [Trial Version].exe
    "C:\Users\Admin\AppData\Local\Temp\Simple BTC Trader v1.3\Simple BTC Trader v1.3 [Trial Version].exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:380
    • C:\Users\Admin\AppData\Local\Temp\Simple BTC Trader v1.3\Simple BTC Trader v1.3 [Trial Version].exe
      "C:\Users\Admin\AppData\Local\Temp\Simple BTC Trader v1.3\Simple BTC Trader v1.3 [Trial Version].exe"
      2⤵
      • 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:1836
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\Simple BTC Trader v1.3\Simple BTC Trader v1.3 [Trial Version].exe" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:992
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\Simple BTC Trader v1.3\Simple BTC Trader v1.3 [Trial Version].exe" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:3496
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\Simple BTC Trader v1.3" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:408
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\Simple BTC Trader v1.3" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:1212
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • Deletes itself
        • System Location Discovery: System Language Discovery
        PID:4732
      • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
        "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1380
        • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
          "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of UnmapMainImage
          PID:3916
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 3916 -s 12
            5⤵
            • Program crash
            PID:2152
        • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
          "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
          4⤵
          • Executes dropped EXE
          PID:2284
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 2284 -s 80
            5⤵
            • Program crash
            PID:4572
        • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
          "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.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
          PID:2620
          • C:\Windows\SysWOW64\notepad.exe
            notepad
            5⤵
            • System Location Discovery: System Language Discovery
            PID:2836
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3916 -ip 3916
    1⤵
      PID:1936
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2284 -ip 2284
      1⤵
        PID:1560

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        1.0MB

        MD5

        d493ef686bd337ee99459886c3ef6f93

        SHA1

        e0b99011aec22e73f0eb362d503e724567b2ae33

        SHA256

        fc46fddea9f07579ff17ca2045151449488c44c30435df61f560797d9e4a1bff

        SHA512

        96074111f22fbb6c7d13a42d0fc6a60a50f98e3e0ddc79458469b6edcec24c596bc5966419516225fc26fa9b2bf85c9dd6ce6933d4cbb42faf41d1aa3c16068c

      • memory/380-17-0x00000000750F0000-0x00000000756A1000-memory.dmp

        Filesize

        5.7MB

      • memory/380-1-0x00000000750F0000-0x00000000756A1000-memory.dmp

        Filesize

        5.7MB

      • memory/380-2-0x00000000750F0000-0x00000000756A1000-memory.dmp

        Filesize

        5.7MB

      • memory/380-10-0x00000000750F0000-0x00000000756A1000-memory.dmp

        Filesize

        5.7MB

      • memory/380-0-0x00000000750F2000-0x00000000750F3000-memory.dmp

        Filesize

        4KB

      • memory/1836-19-0x0000000001590000-0x0000000001591000-memory.dmp

        Filesize

        4KB

      • memory/1836-12-0x0000000000400000-0x00000000004B6000-memory.dmp

        Filesize

        728KB

      • memory/1836-14-0x0000000000400000-0x00000000004B6000-memory.dmp

        Filesize

        728KB

      • memory/1836-18-0x0000000000400000-0x00000000004B6000-memory.dmp

        Filesize

        728KB

      • memory/1836-16-0x0000000000400000-0x00000000004B6000-memory.dmp

        Filesize

        728KB

      • memory/1836-11-0x0000000000400000-0x00000000004B6000-memory.dmp

        Filesize

        728KB

      • memory/1836-75-0x0000000000400000-0x00000000004B6000-memory.dmp

        Filesize

        728KB

      • memory/1836-4-0x0000000000400000-0x00000000004B6000-memory.dmp

        Filesize

        728KB

      • memory/1836-9-0x0000000000400000-0x00000000004B6000-memory.dmp

        Filesize

        728KB

      • memory/1836-7-0x0000000000400000-0x00000000004B6000-memory.dmp

        Filesize

        728KB

      • memory/1836-6-0x0000000000400000-0x00000000004B6000-memory.dmp

        Filesize

        728KB

      • memory/1836-3-0x0000000000400000-0x00000000004B6000-memory.dmp

        Filesize

        728KB

      • memory/2620-71-0x0000000000400000-0x00000000004B6000-memory.dmp

        Filesize

        728KB

      • memory/2620-70-0x0000000000400000-0x00000000004B6000-memory.dmp

        Filesize

        728KB

      • memory/2620-73-0x0000000000400000-0x00000000004B6000-memory.dmp

        Filesize

        728KB

      • memory/2620-74-0x0000000000400000-0x00000000004B6000-memory.dmp

        Filesize

        728KB

      • memory/2836-72-0x0000000000C00000-0x0000000000C01000-memory.dmp

        Filesize

        4KB

      • memory/4732-22-0x0000000000F80000-0x0000000000F81000-memory.dmp

        Filesize

        4KB