Analysis

  • max time kernel
    39s
  • max time network
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/10/2026, 16:01

General

  • Target
    2026-10-01_40e986d58b161e33f9e10475e8ba11f1_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
  • Size 2.0MB
  • Sample261002-tf782sdf38
  • SHA256 f257d0c31c2725e4d1eb18887fdb794b39318f0d179edd76ed6d34afa87d0d4c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: DcRat 27 IoCs

    DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Process spawned unexpected child process 26 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • UAC bypass 3 TTPs 3 IoCs
  • Detects executables packed with SmartAssembly 7 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • SmartAssembly .NET packer 7 IoCs

    Detects SmartAssembly .NET packer.

  • Drops file in Windows directory 2 IoCs
  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

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

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 26 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • System policy modification 1 TTPs 3 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-10-01_40e986d58b161e33f9e10475e8ba11f1_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-01_40e986d58b161e33f9e10475e8ba11f1_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe"
    1⤵
    • Family: DcRat
    • Modifies WinLogon for persistence
    • UAC bypass
    • Drops file in Drivers directory
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Drops file in Windows directory
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • System policy modification
    PID:4076
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SecurityHealthServiceS" /sc MINUTE /mo 11 /tr "'C:\Windows.old\SecurityHealthService.exe'" /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5108
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SecurityHealthService" /sc ONLOGON /tr "'C:\Windows.old\SecurityHealthService.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5588
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SecurityHealthServiceS" /sc MINUTE /mo 13 /tr "'C:\Windows.old\SecurityHealthService.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5636
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "explorere" /sc MINUTE /mo 8 /tr "'C:\Windows\Speech_OneCore\Engines\explorer.exe'" /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4436
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Windows\Speech_OneCore\Engines\explorer.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2692
  • C:\Windows.old\SecurityHealthService.exe
    "C:\Windows.old\SecurityHealthService.exe"
    1⤵
      PID:2412
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorere" /sc MINUTE /mo 14 /tr "'C:\Windows\Speech_OneCore\Engines\explorer.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3052
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WUDFHostW" /sc MINUTE /mo 7 /tr "'C:\Windows.old\WUDFHost.exe'" /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2600
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WUDFHost" /sc ONLOGON /tr "'C:\Windows.old\WUDFHost.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4848
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WUDFHostW" /sc MINUTE /mo 13 /tr "'C:\Windows.old\WUDFHost.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2828
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Adobe\Acrobat Reader DC\Idle.exe'" /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4988
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Program Files (x86)\Adobe\Acrobat Reader DC\Idle.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4252
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Adobe\Acrobat Reader DC\Idle.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:5616
    • C:\Windows\Speech_OneCore\Engines\explorer.exe
      "C:\Windows\Speech_OneCore\Engines\explorer.exe"
      1⤵
        PID:4256
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 9 /tr "'C:\Program Files\VideoLAN\VLC\locale\winlogon.exe'" /f
        1⤵
        • Family: DcRat
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:5616
      • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Idle.exe
        "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Idle.exe"
        1⤵
          PID:2680
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Program Files\VideoLAN\VLC\locale\winlogon.exe'" /rl HIGHEST /f
          1⤵
          • Family: DcRat
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:4216
        • C:\Windows.old\WUDFHost.exe
          "C:\Windows.old\WUDFHost.exe"
          1⤵
            PID:1796
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 11 /tr "'C:\Program Files\VideoLAN\VLC\locale\winlogon.exe'" /rl HIGHEST /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:108
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 12 /tr "'C:\Recovery\WindowsRE\Idle.exe'" /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:6988
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\Idle.exe'" /rl HIGHEST /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:7036
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 9 /tr "'C:\Recovery\WindowsRE\Idle.exe'" /rl HIGHEST /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:7136
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 14 /tr "'C:\Recovery\WindowsRE\Idle.exe'" /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:6700
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\Idle.exe'" /rl HIGHEST /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:2388
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 10 /tr "'C:\Recovery\WindowsRE\Idle.exe'" /rl HIGHEST /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:6464
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "WUDFHostW" /sc MINUTE /mo 9 /tr "'C:\Recovery\WindowsRE\WUDFHost.exe'" /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:3440
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "WUDFHost" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\WUDFHost.exe'" /rl HIGHEST /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:4540
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "WUDFHostW" /sc MINUTE /mo 8 /tr "'C:\Recovery\WindowsRE\WUDFHost.exe'" /rl HIGHEST /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:2452
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 6 /tr "'C:\Windows\PLA\Templates\Idle.exe'" /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:6524
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Windows\PLA\Templates\Idle.exe'" /rl HIGHEST /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:3356

          Network

                MITRE ATT&CK Enterprise v16

                Replay Monitor

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                Downloads

                SecurityHealthService.exe

                • Path C:\Windows.old\SecurityHealthService.exe
                • Size 2.0MB
                • SHA256 f257d0c31c2725e4d1eb18887fdb794b39318f0d179edd76ed6d34afa87d0d4c
                • MD5 SHA1 SHA512 SSDEEP TLSH

                memory/4076-0-0x0000000074D02000-0x0000000074D03000-memory.dmp

                memory/4076-1-0x0000000005720000-0x00000000059D8000-memory.dmp

                memory/4076-2-0x0000000074CF0000-0x00000000754AC000-memory.dmp

                memory/4076-3-0x00000000059E0000-0x0000000005F9A000-memory.dmp

                memory/4076-5-0x0000000005460000-0x0000000005716000-memory.dmp

                memory/4076-4-0x0000000074CF0000-0x00000000754AC000-memory.dmp

                memory/4076-14-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-20-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-65-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-68-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-108-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-116-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-132-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-131-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-128-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-126-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-124-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-122-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-120-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-118-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-114-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-112-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-110-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-106-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-104-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-103-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-100-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-98-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-96-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-94-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-90-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-88-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-86-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-84-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-82-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-80-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-78-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-76-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-93-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-74-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-72-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-70-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-66-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-62-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-60-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-58-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-56-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-54-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-52-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-50-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-48-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-46-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-44-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-43-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-40-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-38-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-37-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-35-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-31-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-28-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-27-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-24-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-22-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-18-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-16-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-12-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-10-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-8-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-32-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-7-0x0000000005460000-0x0000000005711000-memory.dmp

                memory/4076-6-0x0000000074CF0000-0x00000000754AC000-memory.dmp

                memory/4076-1991-0x0000000074CF0000-0x00000000754AC000-memory.dmp

                memory/4076-5228-0x0000000074CF0000-0x00000000754AC000-memory.dmp

                memory/4076-5229-0x0000000002500000-0x000000000251C000-memory.dmp

                memory/4076-5230-0x0000000002530000-0x0000000002580000-memory.dmp

                memory/4076-5231-0x0000000002590000-0x0000000002598000-memory.dmp

                memory/4076-5232-0x0000000006760000-0x0000000006770000-memory.dmp

                memory/4076-5233-0x0000000006770000-0x0000000006786000-memory.dmp

                memory/4076-5234-0x00000000067B0000-0x00000000067B8000-memory.dmp

                memory/4076-5235-0x00000000067C0000-0x00000000067D2000-memory.dmp

                memory/4076-5236-0x0000000006800000-0x0000000006808000-memory.dmp

                memory/4076-5237-0x0000000006C70000-0x0000000006C80000-memory.dmp

                memory/4076-5238-0x0000000006CB0000-0x0000000006D42000-memory.dmp

                memory/4076-5239-0x0000000006CA0000-0x0000000006CAA000-memory.dmp

                memory/4076-5241-0x0000000006D70000-0x0000000006D7C000-memory.dmp

                memory/4076-5240-0x0000000006D50000-0x0000000006D58000-memory.dmp

                memory/4076-5242-0x0000000006D90000-0x0000000006D98000-memory.dmp

                memory/4076-5244-0x0000000006DA0000-0x0000000006DB2000-memory.dmp

                memory/4076-5245-0x0000000006DF0000-0x000000000731C000-memory.dmp

                memory/4076-5246-0x0000000007370000-0x000000000737C000-memory.dmp

                memory/4076-5247-0x0000000007390000-0x000000000739C000-memory.dmp

                memory/4076-5248-0x00000000073A0000-0x00000000073AC000-memory.dmp

                memory/4076-5249-0x00000000073C0000-0x00000000073CC000-memory.dmp

                memory/4076-5250-0x00000000073D0000-0x00000000073D8000-memory.dmp

                memory/4076-5252-0x0000000007780000-0x000000000778E000-memory.dmp

                memory/4076-5255-0x00000000077D0000-0x00000000077DA000-memory.dmp

                memory/4076-5254-0x00000000077C0000-0x00000000077C8000-memory.dmp

                memory/4076-5253-0x00000000077B0000-0x00000000077B8000-memory.dmp

                memory/4076-5256-0x0000000007800000-0x000000000780C000-memory.dmp

                memory/4076-5251-0x0000000007770000-0x000000000777A000-memory.dmp

                memory/4076-5257-0x0000000074CF0000-0x00000000754AC000-memory.dmp

                memory/4076-5259-0x0000000007830000-0x0000000007896000-memory.dmp

                memory/4076-6991-0x0000000074CF0000-0x00000000754AC000-memory.dmp

                memory/4076-7373-0x0000000074CF0000-0x00000000754AC000-memory.dmp