Analysis

  • max time kernel
    149s
  • max time network
    113s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    19/07/2026, 00:41

General

  • Target
    2026-07-19_c8a87fba0db2526c5421cb0d57ee06d1_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
  • Size 1.7MB
  • Sample260719-a14ltaa16t
  • SHA256 feaeffee3c85d80f12fd6edeb655871764226a227fbe92b78637bbd100c6b1f5
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: DcRat 22 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 21 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 5 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • SmartAssembly .NET packer 5 IoCs

    Detects SmartAssembly .NET packer.

  • 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 21 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 10 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\2026-07-19_c8a87fba0db2526c5421cb0d57ee06d1_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-19_c8a87fba0db2526c5421cb0d57ee06d1_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe"
    1⤵
    • Family: DcRat
    • Modifies WinLogon for persistence
    • UAC bypass
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • System policy modification
    PID:3340
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 5 /tr "'C:\Users\Default\Videos\fontdrvhost.exe'" /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4440
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Users\Default\Videos\fontdrvhost.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:6064
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 9 /tr "'C:\Users\Default\Videos\fontdrvhost.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3824
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 6 /tr "'C:\Users\All Users\ssh\RuntimeBroker.exe'" /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4464
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Users\All Users\ssh\RuntimeBroker.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:992
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 14 /tr "'C:\Users\All Users\ssh\RuntimeBroker.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2040
  • C:\Users\Default\Videos\fontdrvhost.exe
    "C:\Users\Default\Videos\fontdrvhost.exe"
    1⤵
      PID:4128
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 11 /tr "'C:\Program Files (x86)\Windows Photo Viewer\it-IT\fontdrvhost.exe'" /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3612
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Photo Viewer\it-IT\fontdrvhost.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1684
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Windows Photo Viewer\it-IT\fontdrvhost.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:760
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 14 /tr "'C:\Users\Public\lsass.exe'" /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3572
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\Users\Public\lsass.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1572
    • C:\Program Files (x86)\Windows Photo Viewer\it-IT\fontdrvhost.exe
      "C:\Program Files (x86)\Windows Photo Viewer\it-IT\fontdrvhost.exe"
      1⤵
        PID:4716
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 11 /tr "'C:\Users\Public\lsass.exe'" /rl HIGHEST /f
        1⤵
        • Family: DcRat
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:7100
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 5 /tr "'C:\Users\Admin\Links\Registry.exe'" /f
        1⤵
        • Family: DcRat
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:7140
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "Registry" /sc ONLOGON /tr "'C:\Users\Admin\Links\Registry.exe'" /rl HIGHEST /f
        1⤵
        • Family: DcRat
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:6508
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 10 /tr "'C:\Users\Admin\Links\Registry.exe'" /rl HIGHEST /f
        1⤵
        • Family: DcRat
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:6216
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Internet Explorer\SIGNUP\Registry.exe'" /f
        1⤵
        • Family: DcRat
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:1320
      • C:\Users\All Users\ssh\RuntimeBroker.exe
        "C:\Users\All Users\ssh\RuntimeBroker.exe"
        1⤵
          PID:2852
        • C:\Users\Public\lsass.exe
          "C:\Users\Public\lsass.exe"
          1⤵
            PID:2360
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "Registry" /sc ONLOGON /tr "'C:\Program Files (x86)\Internet Explorer\SIGNUP\Registry.exe'" /rl HIGHEST /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:7936
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 11 /tr "'C:\Program Files (x86)\Internet Explorer\SIGNUP\Registry.exe'" /rl HIGHEST /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:5640
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "servicess" /sc MINUTE /mo 11 /tr "'C:\Recovery\WindowsRE\services.exe'" /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:7416
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\services.exe'" /rl HIGHEST /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:6940
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "servicess" /sc MINUTE /mo 9 /tr "'C:\Recovery\WindowsRE\services.exe'" /rl HIGHEST /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:5632
          • C:\Program Files (x86)\Internet Explorer\SIGNUP\Registry.exe
            "C:\Program Files (x86)\Internet Explorer\SIGNUP\Registry.exe"
            1⤵
              PID:4796

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  fontdrvhost.exe

                  • Path C:\Users\Default\Videos\fontdrvhost.exe
                  • Size 1.7MB
                  • SHA256 feaeffee3c85d80f12fd6edeb655871764226a227fbe92b78637bbd100c6b1f5
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  fontdrvhost.exe

                  • Path C:\Users\Default\Videos\fontdrvhost.exe
                  • Size 1.7MB
                  • SHA256 aa3110ff0aac95d501a75f7f749ca24118cdbea5929d38903676edac4fb1a1fd
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  memory/3340-0-0x0000000074DA2000-0x0000000074DA3000-memory.dmp

                  memory/3340-1-0x0000000005580000-0x00000000057FC000-memory.dmp

                  memory/3340-5-0x0000000074D90000-0x000000007554C000-memory.dmp

                  memory/3340-4-0x0000000005300000-0x000000000557A000-memory.dmp

                  memory/3340-3-0x0000000005800000-0x0000000005DBA000-memory.dmp

                  memory/3340-2-0x0000000074D90000-0x000000007554C000-memory.dmp

                  memory/3340-6-0x0000000074D90000-0x000000007554C000-memory.dmp

                  memory/3340-8-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-7-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-130-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-132-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-128-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-126-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-124-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-122-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-120-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-118-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-114-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-112-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-110-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-108-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-106-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-104-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-102-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-100-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-98-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-96-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-94-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-92-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-90-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-87-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-88-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-84-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-82-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-80-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-78-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-76-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-74-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-72-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-70-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-68-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-66-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-117-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-64-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-62-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-60-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-58-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-56-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-54-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-53-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-50-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-49-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-47-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-44-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-43-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-40-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-38-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-36-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-34-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-32-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-29-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-30-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-26-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-23-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-18-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-16-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-14-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-12-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-10-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-21-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-24-0x0000000005300000-0x0000000005574000-memory.dmp

                  memory/3340-1883-0x0000000074DA2000-0x0000000074DA3000-memory.dmp

                  memory/3340-1888-0x0000000074D90000-0x000000007554C000-memory.dmp

                  memory/3340-5229-0x0000000074D90000-0x000000007554C000-memory.dmp

                  memory/3340-5230-0x0000000004CC0000-0x0000000004CDC000-memory.dmp

                  memory/3340-5231-0x0000000004CF0000-0x0000000004D40000-memory.dmp

                  memory/3340-5232-0x0000000004D50000-0x0000000004D58000-memory.dmp

                  memory/3340-5233-0x00000000065F0000-0x0000000006600000-memory.dmp

                  memory/3340-5234-0x0000000006650000-0x0000000006666000-memory.dmp

                  memory/3340-5236-0x0000000006670000-0x0000000006680000-memory.dmp

                  memory/3340-5235-0x0000000006630000-0x0000000006638000-memory.dmp

                  memory/3340-5237-0x00000000066C0000-0x00000000066CA000-memory.dmp

                  memory/3340-5238-0x00000000069F0000-0x00000000069FC000-memory.dmp

                  memory/3340-5239-0x0000000006A00000-0x0000000006A12000-memory.dmp

                  memory/3340-5240-0x0000000006A30000-0x0000000006F5C000-memory.dmp

                  memory/3340-5241-0x0000000006FC0000-0x0000000006FCC000-memory.dmp

                  memory/3340-5242-0x0000000006FD0000-0x0000000006FDC000-memory.dmp

                  memory/3340-5245-0x00000000073B0000-0x00000000073BC000-memory.dmp

                  memory/3340-5244-0x00000000073A0000-0x00000000073A8000-memory.dmp

                  memory/3340-5246-0x0000000074D90000-0x000000007554C000-memory.dmp

                  memory/3340-5247-0x00000000073E0000-0x0000000007472000-memory.dmp

                  memory/3340-5248-0x00000000074A0000-0x00000000074AC000-memory.dmp

                  memory/3340-5243-0x0000000007390000-0x000000000739A000-memory.dmp

                  memory/3340-5250-0x0000000007610000-0x0000000007676000-memory.dmp

                  memory/3340-5251-0x0000000074D90000-0x000000007554C000-memory.dmp

                  memory/3340-6685-0x0000000074D90000-0x000000007554C000-memory.dmp

                  memory/3340-7084-0x0000000074D90000-0x000000007554C000-memory.dmp

                  memory/3340-7255-0x0000000074D90000-0x000000007554C000-memory.dmp