Analysis

  • max time kernel
    67s
  • max time network
    117s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    19/10/2026, 04:33

General

  • Target
    2026-10-17_581db4b0090fece537685d88dc7e8989_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
  • Size 2.0MB
  • Sample261019-e6lqeacy5n
  • SHA256 bce57133523827794df8d2a868b0e6656caa67e507e9261e8c632050cc022f68
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: DcRat 19 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 17 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 17 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\2026-10-17_581db4b0090fece537685d88dc7e8989_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-17_581db4b0090fece537685d88dc7e8989_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:2540
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 10 /tr "'C:\Windows\debug\lsass.exe'" /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4152
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\Windows\debug\lsass.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4088
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 10 /tr "'C:\Windows\debug\lsass.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:460
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "ShellHostS" /sc MINUTE /mo 13 /tr "'C:\Recovery\WindowsRE\ShellHost.exe'" /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4656
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "ShellHost" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\ShellHost.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3928
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "ShellHostS" /sc MINUTE /mo 13 /tr "'C:\Recovery\WindowsRE\ShellHost.exe'" /rl HIGHEST /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4172
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sihosts" /sc MINUTE /mo 13 /tr "'C:\Windows\Downloaded Program Files\sihost.exe'" /f
    1⤵
    • Family: DcRat
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:240
  • C:\Windows\debug\lsass.exe
    "C:\Windows\debug\lsass.exe"
    1⤵
      PID:1612
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sihost" /sc ONLOGON /tr "'C:\Windows\Downloaded Program Files\sihost.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3988
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sihosts" /sc MINUTE /mo 11 /tr "'C:\Windows\Downloaded Program Files\sihost.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2696
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\MSBuild\Microsoft\Windows Workflow Foundation\RuntimeBroker.exe'" /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:5784
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Program Files (x86)\MSBuild\Microsoft\Windows Workflow Foundation\RuntimeBroker.exe'" /rl HIGHEST /f
      1⤵
      • Family: DcRat
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:5160
    • C:\Recovery\WindowsRE\ShellHost.exe
      "C:\Recovery\WindowsRE\ShellHost.exe"
      1⤵
        PID:5388
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\MSBuild\Microsoft\Windows Workflow Foundation\RuntimeBroker.exe'" /rl HIGHEST /f
        1⤵
        • Family: DcRat
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:904
      • C:\Windows\Downloaded Program Files\sihost.exe
        "C:\Windows\Downloaded Program Files\sihost.exe"
        1⤵
          PID:5516
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 12 /tr "'C:\Windows.old\dllhost.exe'" /f
          1⤵
          • Family: DcRat
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:5248
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Windows.old\dllhost.exe'" /rl HIGHEST /f
          1⤵
          • Family: DcRat
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:5452
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 14 /tr "'C:\Windows.old\dllhost.exe'" /rl HIGHEST /f
          1⤵
          • Family: DcRat
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:940
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 8 /tr "'C:\Recovery\WindowsRE\Registry.exe'" /f
          1⤵
          • Family: DcRat
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:6032
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "Registry" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\Registry.exe'" /rl HIGHEST /f
          1⤵
          • Family: DcRat
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:4928

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              lsass.exe

              • Path C:\Windows\debug\lsass.exe
              • Size 2.0MB
              • SHA256 bce57133523827794df8d2a868b0e6656caa67e507e9261e8c632050cc022f68
              • MD5 SHA1 SHA512 SSDEEP TLSH

              memory/2540-0-0x0000000074BF2000-0x0000000074BF3000-memory.dmp

              memory/2540-1-0x0000000005460000-0x0000000005718000-memory.dmp

              memory/2540-2-0x0000000074BE0000-0x000000007539C000-memory.dmp

              memory/2540-4-0x0000000074BE0000-0x000000007539C000-memory.dmp

              memory/2540-5-0x00000000051A0000-0x0000000005456000-memory.dmp

              memory/2540-3-0x0000000005720000-0x0000000005CDA000-memory.dmp

              memory/2540-6-0x0000000074BE0000-0x000000007539C000-memory.dmp

              memory/2540-8-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-49-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-87-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-104-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-94-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-93-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-90-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-88-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-85-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-82-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-79-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-80-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-76-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-74-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-68-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-66-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-72-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-70-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-64-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-62-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-60-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-58-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-56-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-54-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-52-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-50-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-46-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-44-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-36-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-34-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-32-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-30-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-28-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-42-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-39-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-40-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-26-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-24-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-22-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-20-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-14-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-12-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-10-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-7-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-17-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-18-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-111-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-119-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-125-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-126-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-96-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-128-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-122-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-132-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-130-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-120-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-116-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-114-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-112-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-109-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-106-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-102-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-100-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-98-0x00000000051A0000-0x0000000005451000-memory.dmp

              memory/2540-1117-0x0000000074BF2000-0x0000000074BF3000-memory.dmp

              memory/2540-1125-0x0000000074BE0000-0x000000007539C000-memory.dmp

              memory/2540-5229-0x0000000074BE0000-0x000000007539C000-memory.dmp

              memory/2540-5230-0x0000000002BD0000-0x0000000002BEC000-memory.dmp

              memory/2540-5231-0x0000000002C00000-0x0000000002C50000-memory.dmp

              memory/2540-5232-0x0000000002C60000-0x0000000002C68000-memory.dmp

              memory/2540-5233-0x00000000064E0000-0x00000000064F0000-memory.dmp

              memory/2540-5234-0x00000000064F0000-0x0000000006506000-memory.dmp

              memory/2540-5235-0x00000000069F0000-0x00000000069F8000-memory.dmp

              memory/2540-5236-0x0000000006A00000-0x0000000006A12000-memory.dmp

              memory/2540-5237-0x0000000006B80000-0x0000000006B88000-memory.dmp

              memory/2540-5238-0x0000000006A20000-0x0000000006A30000-memory.dmp

              memory/2540-5239-0x0000000006BA0000-0x0000000006C32000-memory.dmp

              memory/2540-5240-0x0000000006C50000-0x0000000006C5A000-memory.dmp

              memory/2540-5241-0x0000000006C70000-0x0000000006C78000-memory.dmp

              memory/2540-5242-0x0000000006C80000-0x0000000006C8C000-memory.dmp

              memory/2540-5243-0x0000000006CA0000-0x0000000006CA8000-memory.dmp

              memory/2540-5245-0x0000000006CB0000-0x0000000006CC2000-memory.dmp

              memory/2540-5246-0x0000000006D00000-0x000000000722C000-memory.dmp

              memory/2540-5247-0x0000000007280000-0x000000000728C000-memory.dmp

              memory/2540-5249-0x00000000072B0000-0x00000000072BC000-memory.dmp

              memory/2540-5248-0x00000000072A0000-0x00000000072AC000-memory.dmp

              memory/2540-5250-0x00000000072D0000-0x00000000072DC000-memory.dmp

              memory/2540-5251-0x0000000007600000-0x0000000007608000-memory.dmp

              memory/2540-5253-0x0000000007610000-0x000000000761E000-memory.dmp

              memory/2540-5252-0x00000000072E0000-0x00000000072EA000-memory.dmp

              memory/2540-5254-0x0000000007660000-0x0000000007668000-memory.dmp

              memory/2540-5255-0x0000000074BE0000-0x000000007539C000-memory.dmp

              memory/2540-5256-0x0000000007670000-0x0000000007678000-memory.dmp

              memory/2540-5257-0x0000000007680000-0x000000000768A000-memory.dmp

              memory/2540-5258-0x0000000007690000-0x000000000769C000-memory.dmp

              memory/2540-5260-0x0000000007730000-0x0000000007796000-memory.dmp

              memory/2540-5261-0x0000000074BE0000-0x000000007539C000-memory.dmp

              memory/2540-5757-0x0000000074BE0000-0x000000007539C000-memory.dmp

              memory/2540-6045-0x0000000074BE0000-0x000000007539C000-memory.dmp

              memory/2540-6455-0x0000000074BE0000-0x000000007539C000-memory.dmp