Analysis

  • max time kernel
    34s
  • max time network
    121s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/07/2026, 01:26

General

  • Target
    2026-07-01_b6187f2ac5c19c77b0fc0c5bd2397ed8_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
  • Size 1.7MB
  • Sample260702-btqxtahs9n
  • SHA256 c2f10af80ad02cfe94af5862a0b8c7e75479bd9f9f5758d04cfedd25a5221090
  • 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 2 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
  • Executes dropped EXE 1 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 Windows directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 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 11 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\2026-07-01_b6187f2ac5c19c77b0fc0c5bd2397ed8_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-01_b6187f2ac5c19c77b0fc0c5bd2397ed8_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 Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • System policy modification
    PID:2004
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 14 /tr "'C:\Recovery\WindowsRE\RuntimeBroker.exe'" /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5808
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\RuntimeBroker.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1276
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 14 /tr "'C:\Recovery\WindowsRE\RuntimeBroker.exe'" /rl HIGHEST /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 "csrssc" /sc MINUTE /mo 11 /tr "'C:\Windows\ELAMBKUP\csrss.exe'" /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5332
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Windows\ELAMBKUP\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5736
  • C:\Recovery\WindowsRE\RuntimeBroker.exe
    "C:\Recovery\WindowsRE\RuntimeBroker.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4152
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 6 /tr "'C:\Windows\ELAMBKUP\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1116
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SecurityHealthServiceS" /sc MINUTE /mo 5 /tr "'C:\Recovery\WindowsRE\SecurityHealthService.exe'" /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3096
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SecurityHealthService" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\SecurityHealthService.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5468
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SecurityHealthServiceS" /sc MINUTE /mo 13 /tr "'C:\Recovery\WindowsRE\SecurityHealthService.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2988
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 7 /tr "'C:\Windows.old\OfficeClickToRun.exe'" /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5244
  • C:\Windows\ELAMBKUP\csrss.exe
    "C:\Windows\ELAMBKUP\csrss.exe"
    1⤵
      PID:5148
    • C:\Recovery\WindowsRE\SecurityHealthService.exe
      "C:\Recovery\WindowsRE\SecurityHealthService.exe"
      1⤵
        PID:5464
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "OfficeClickToRun" /sc ONLOGON /tr "'C:\Windows.old\OfficeClickToRun.exe'" /rl HIGHEST /f
        1⤵
        • Family: DcRat
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:1924
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 9 /tr "'C:\Windows.old\OfficeClickToRun.exe'" /rl HIGHEST /f
        1⤵
        • Family: DcRat
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:6164
      • C:\Windows.old\OfficeClickToRun.exe
        "C:\Windows.old\OfficeClickToRun.exe"
        1⤵
          PID:5648
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 14 /tr "'C:\Recovery\WindowsRE\sppsvc.exe'" /f
          1⤵
          • Family: DcRat
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:6248
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\sppsvc.exe'" /rl HIGHEST /f
          1⤵
          • Family: DcRat
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:1656
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 9 /tr "'C:\Recovery\WindowsRE\sppsvc.exe'" /rl HIGHEST /f
          1⤵
          • Family: DcRat
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:6396
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\WindowsPowerShell\Registry.exe'" /f
          1⤵
          • Family: DcRat
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:6380
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "Registry" /sc ONLOGON /tr "'C:\Program Files (x86)\WindowsPowerShell\Registry.exe'" /rl HIGHEST /f
          1⤵
          • Family: DcRat
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:7640
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 11 /tr "'C:\Program Files (x86)\WindowsPowerShell\Registry.exe'" /rl HIGHEST /f
          1⤵
          • Family: DcRat
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:4384
        • C:\Recovery\WindowsRE\sppsvc.exe
          "C:\Recovery\WindowsRE\sppsvc.exe"
          1⤵
            PID:6852
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 11 /tr "'C:\Recovery\WindowsRE\OfficeClickToRun.exe'" /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:5128
          • C:\Windows\system32\schtasks.exe
            schtasks.exe /create /tn "OfficeClickToRun" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\OfficeClickToRun.exe'" /rl HIGHEST /f
            1⤵
            • Family: DcRat
            • Process spawned unexpected child process
            • Scheduled Task/Job: Scheduled Task
            PID:7804
          • C:\Program Files (x86)\WindowsPowerShell\Registry.exe
            "C:\Program Files (x86)\WindowsPowerShell\Registry.exe"
            1⤵
              PID:6832
            • C:\Windows\system32\schtasks.exe
              schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 8 /tr "'C:\Recovery\WindowsRE\OfficeClickToRun.exe'" /rl HIGHEST /f
              1⤵
              • Family: DcRat
              • Process spawned unexpected child process
              • Scheduled Task/Job: Scheduled Task
              PID:7076

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

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                  Downloads

                  RuntimeBroker.exe

                  • Path C:\Recovery\WindowsRE\RuntimeBroker.exe
                  • Size 1.7MB
                  • SHA256 c2f10af80ad02cfe94af5862a0b8c7e75479bd9f9f5758d04cfedd25a5221090
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  memory/2004-0-0x0000000074432000-0x0000000074433000-memory.dmp

                  memory/2004-1-0x0000000005680000-0x00000000058FC000-memory.dmp

                  memory/2004-2-0x0000000074420000-0x0000000074BDC000-memory.dmp

                  memory/2004-3-0x0000000005900000-0x0000000005EBA000-memory.dmp

                  memory/2004-4-0x0000000005400000-0x000000000567A000-memory.dmp

                  memory/2004-5-0x0000000074420000-0x0000000074BDC000-memory.dmp

                  memory/2004-52-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-63-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-68-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-132-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-130-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-128-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-126-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-124-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-122-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-120-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-118-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-114-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-112-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-110-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-108-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-106-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-104-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-102-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-100-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-98-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-94-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-93-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-90-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-88-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-86-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-82-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-80-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-78-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-76-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-72-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-70-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-66-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-117-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-96-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-84-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-74-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-61-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-59-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-57-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-65-0x0000000074420000-0x0000000074BDC000-memory.dmp

                  memory/2004-55-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-49-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-47-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-45-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-43-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-41-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-39-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-37-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-35-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-33-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-31-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-29-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-25-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-21-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-19-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-16-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-13-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-11-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-9-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-7-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-6-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-53-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-28-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-23-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-17-0x0000000005400000-0x0000000005674000-memory.dmp

                  memory/2004-1749-0x0000000074420000-0x0000000074BDC000-memory.dmp

                  memory/2004-1744-0x0000000074432000-0x0000000074433000-memory.dmp

                  memory/2004-5229-0x0000000074420000-0x0000000074BDC000-memory.dmp

                  memory/2004-5230-0x0000000002BE0000-0x0000000002BFC000-memory.dmp

                  memory/2004-5231-0x0000000002C10000-0x0000000002C60000-memory.dmp

                  memory/2004-5233-0x00000000064B0000-0x00000000064C0000-memory.dmp

                  memory/2004-5232-0x0000000002C70000-0x0000000002C78000-memory.dmp

                  memory/2004-5234-0x0000000006510000-0x0000000006526000-memory.dmp

                  memory/2004-5235-0x00000000064F0000-0x00000000064F8000-memory.dmp

                  memory/2004-5236-0x0000000006530000-0x0000000006540000-memory.dmp

                  memory/2004-5237-0x0000000006580000-0x000000000658A000-memory.dmp

                  memory/2004-5238-0x00000000068B0000-0x00000000068BC000-memory.dmp

                  memory/2004-5239-0x00000000068C0000-0x00000000068D2000-memory.dmp

                  memory/2004-5240-0x0000000007C20000-0x000000000814C000-memory.dmp

                  memory/2004-5241-0x0000000006950000-0x000000000695C000-memory.dmp

                  memory/2004-5242-0x0000000006960000-0x000000000696C000-memory.dmp

                  memory/2004-5245-0x0000000006A40000-0x0000000006A4C000-memory.dmp

                  memory/2004-5244-0x0000000006A30000-0x0000000006A38000-memory.dmp

                  memory/2004-5243-0x0000000006A20000-0x0000000006A2A000-memory.dmp

                  memory/2004-5250-0x00000000084F0000-0x0000000008556000-memory.dmp

                  memory/2004-5248-0x0000000006A90000-0x0000000006A9C000-memory.dmp

                  memory/2004-5247-0x0000000008450000-0x00000000084E2000-memory.dmp

                  memory/2004-5246-0x0000000074420000-0x0000000074BDC000-memory.dmp

                  memory/2004-6868-0x0000000074420000-0x0000000074BDC000-memory.dmp

                  memory/2004-7254-0x0000000074420000-0x0000000074BDC000-memory.dmp