Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/07/2026, 17:01

General

  • Target
    2026-07-23_1268ba39bf7e59c3429abc9767c8b338_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
  • Size 1.7MB
  • Sample260723-vjmxysgm2w
  • SHA256 8d2121ad763171f34bdde40a560022a5ebd78ab03e249d504d7d9fa3d5915332
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: DcRat 26 IoCs

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

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Process spawned unexpected child process 24 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 4 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • SmartAssembly .NET packer 5 IoCs

    Detects SmartAssembly .NET packer.

  • Drops file in Program Files directory 2 IoCs
  • 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 24 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 7 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\2026-07-23_1268ba39bf7e59c3429abc9767c8b338_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-23_1268ba39bf7e59c3429abc9767c8b338_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
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • System policy modification
    PID:4284
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Mozilla Maintenance Service\logs\RuntimeBroker.exe'" /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4668
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Program Files (x86)\Mozilla Maintenance Service\logs\RuntimeBroker.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5816
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Mozilla Maintenance Service\logs\RuntimeBroker.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2604
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 14 /tr "'C:\Users\Default\My Documents\csrss.exe'" /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2436
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Users\Default\My Documents\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4692
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 6 /tr "'C:\Users\Default\My Documents\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3440
  • C:\Program Files (x86)\Mozilla Maintenance Service\logs\RuntimeBroker.exe
    "C:\Program Files (x86)\Mozilla Maintenance Service\logs\RuntimeBroker.exe"
    1⤵
      PID:2908
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 9 /tr "'C:\Windows.old\System.exe'" /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2760
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Windows.old\System.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:5972
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 9 /tr "'C:\Windows.old\System.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:5444
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "servicess" /sc MINUTE /mo 13 /tr "'C:\Windows.old\services.exe'" /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:5876
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Windows.old\services.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:5932
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "servicess" /sc MINUTE /mo 13 /tr "'C:\Windows.old\services.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4248
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SecurityHealthServiceS" /sc MINUTE /mo 9 /tr "'C:\Users\All Users\ssh\SecurityHealthService.exe'" /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4692
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SecurityHealthService" /sc ONLOGON /tr "'C:\Users\All Users\ssh\SecurityHealthService.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1464
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SecurityHealthServiceS" /sc MINUTE /mo 9 /tr "'C:\Users\All Users\ssh\SecurityHealthService.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:5360
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Windows Media Player\dwm.exe'" /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4996
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Media Player\dwm.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3212
    • C:\Users\All Users\ssh\SecurityHealthService.exe
      "C:\Users\All Users\ssh\SecurityHealthService.exe"
      1⤵
        PID:3384
      • C:\Windows.old\System.exe
        "C:\Windows.old\System.exe"
        1⤵
          PID:2976
        • C:\Users\Default\My Documents\csrss.exe
          "C:\Users\Default\My Documents\csrss.exe"
          1⤵
            PID:6104
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Windows Media Player\dwm.exe'" /rl HIGHEST /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:3368
          • C:\Program Files (x86)\Windows Media Player\dwm.exe
            "C:\Program Files (x86)\Windows Media Player\dwm.exe"
            1⤵
              PID:1136
            • C:\Windows\system32\schtasks.exe
              schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 8 /tr "'C:\Windows\Cursors\spoolsv.exe'" /f
              1⤵
              • Family: DcRat
              • Process spawned unexpected child process
              • Scheduled Task/Job: Scheduled Task
              PID:9160
            • C:\Windows\system32\schtasks.exe
              schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Windows\Cursors\spoolsv.exe'" /rl HIGHEST /f
              1⤵
              • Family: DcRat
              • Process spawned unexpected child process
              • Scheduled Task/Job: Scheduled Task
              PID:8264
            • C:\Windows\system32\schtasks.exe
              schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 11 /tr "'C:\Windows\Cursors\spoolsv.exe'" /rl HIGHEST /f
              1⤵
              • Family: DcRat
              • Process spawned unexpected child process
              • Scheduled Task/Job: Scheduled Task
              PID:7288
            • C:\Windows\system32\schtasks.exe
              schtasks.exe /create /tn "ctfmonc" /sc MINUTE /mo 6 /tr "'C:\Windows\Logs\CBS\ctfmon.exe'" /f
              1⤵
              • Family: DcRat
              • Process spawned unexpected child process
              • Scheduled Task/Job: Scheduled Task
              PID:7656
            • C:\Windows\system32\schtasks.exe
              schtasks.exe /create /tn "ctfmon" /sc ONLOGON /tr "'C:\Windows\Logs\CBS\ctfmon.exe'" /rl HIGHEST /f
              1⤵
              • Family: DcRat
              • Process spawned unexpected child process
              • Scheduled Task/Job: Scheduled Task
              PID:6196
            • C:\Windows\system32\schtasks.exe
              schtasks.exe /create /tn "ctfmonc" /sc MINUTE /mo 13 /tr "'C:\Windows\Logs\CBS\ctfmon.exe'" /rl HIGHEST /f
              1⤵
              • Family: DcRat
              • Process spawned unexpected child process
              • Scheduled Task/Job: Scheduled Task
              PID:3232

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

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                  Downloads

                  RuntimeBroker.exe

                  • Path C:\Program Files (x86)\Mozilla Maintenance Service\logs\RuntimeBroker.exe
                  • Size 1.7MB
                  • SHA256 8d2121ad763171f34bdde40a560022a5ebd78ab03e249d504d7d9fa3d5915332
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  memory/4284-0-0x00000000748C2000-0x00000000748C3000-memory.dmp

                  memory/4284-1-0x0000000005460000-0x00000000056DC000-memory.dmp

                  memory/4284-2-0x00000000748B0000-0x000000007506C000-memory.dmp

                  memory/4284-3-0x00000000056E0000-0x0000000005C9A000-memory.dmp

                  memory/4284-4-0x00000000051D0000-0x000000000544A000-memory.dmp

                  memory/4284-5-0x00000000748B0000-0x000000007506C000-memory.dmp

                  memory/4284-6-0x00000000748B0000-0x000000007506C000-memory.dmp

                  memory/4284-7-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-22-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-34-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-36-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-40-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-54-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-64-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-74-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-72-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-70-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-68-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-66-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-62-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-60-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-58-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-56-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-53-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-50-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-48-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-44-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-43-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-38-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-46-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-32-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-30-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-28-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-26-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-24-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-18-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-17-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-20-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-14-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-12-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-9-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-10-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-82-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-84-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-86-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-106-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-110-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-120-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-126-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-132-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-130-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-128-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-124-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-122-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-118-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-116-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-114-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-112-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-108-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-104-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-102-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-98-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-96-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-94-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-92-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-88-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-100-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-90-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-80-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-78-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-76-0x00000000051D0000-0x0000000005444000-memory.dmp

                  memory/4284-1738-0x00000000748B0000-0x000000007506C000-memory.dmp

                  memory/4284-1734-0x00000000748C2000-0x00000000748C3000-memory.dmp

                  memory/4284-5229-0x00000000748B0000-0x000000007506C000-memory.dmp

                  memory/4284-5230-0x0000000002A70000-0x0000000002A8C000-memory.dmp

                  memory/4284-5231-0x0000000002AA0000-0x0000000002AF0000-memory.dmp

                  memory/4284-5232-0x0000000002B00000-0x0000000002B08000-memory.dmp

                  memory/4284-5233-0x0000000006370000-0x0000000006380000-memory.dmp

                  memory/4284-5234-0x00000000063D0000-0x00000000063E6000-memory.dmp

                  memory/4284-5235-0x00000000063B0000-0x00000000063B8000-memory.dmp

                  memory/4284-5236-0x00000000063F0000-0x0000000006400000-memory.dmp

                  memory/4284-5237-0x0000000006440000-0x000000000644A000-memory.dmp

                  memory/4284-5238-0x0000000006770000-0x000000000677C000-memory.dmp

                  memory/4284-5239-0x0000000006780000-0x0000000006792000-memory.dmp

                  memory/4284-5240-0x0000000007AE0000-0x000000000800C000-memory.dmp

                  memory/4284-5241-0x0000000006810000-0x000000000681C000-memory.dmp

                  memory/4284-5242-0x0000000006820000-0x000000000682C000-memory.dmp

                  memory/4284-5244-0x0000000006900000-0x0000000006908000-memory.dmp

                  memory/4284-5243-0x00000000068F0000-0x00000000068FA000-memory.dmp

                  memory/4284-5245-0x00000000068E0000-0x00000000068EC000-memory.dmp

                  memory/4284-5246-0x0000000008310000-0x00000000083A2000-memory.dmp

                  memory/4284-5247-0x0000000006930000-0x000000000693C000-memory.dmp

                  memory/4284-5248-0x00000000748B0000-0x000000007506C000-memory.dmp

                  memory/4284-5250-0x00000000083B0000-0x0000000008416000-memory.dmp

                  memory/4284-6856-0x00000000748B0000-0x000000007506C000-memory.dmp

                  memory/4284-7257-0x00000000748B0000-0x000000007506C000-memory.dmp