Analysis

  • max time kernel
    45s
  • max time network
    134s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    12/11/2026, 06:16

General

  • Target
    2026-11-11_c60aee3eebeb70fa6fbb17432af04504_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
  • Size 2.0MB
  • Sample261112-g1wpjaev6m
  • SHA256 70b37b31aef9edfdb198c9c9b92c6e67bea51f44e439c6ca4d549274c15dc9e3
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: DcRat

    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 18 IoCs

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

  • UAC bypass 3 TTPs 3 IoCs
  • Custom signature
    Detects executables packed with SmartAssembly 7 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 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.

  • 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 18 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 5 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\2026-11-11_c60aee3eebeb70fa6fbb17432af04504_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-11-11_c60aee3eebeb70fa6fbb17432af04504_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe"
    1⤵
    • Modifies WinLogon for persistence
    • UAC bypass
    • Drops file in Drivers directory
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • 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:4600
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SecurityHealthServiceS" /sc MINUTE /mo 6 /tr "'C:\Windows.old\SecurityHealthService.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:6108
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SecurityHealthService" /sc ONLOGON /tr "'C:\Windows.old\SecurityHealthService.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5172
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SecurityHealthServiceS" /sc MINUTE /mo 12 /tr "'C:\Windows.old\SecurityHealthService.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3988
  • C:\Windows.old\SecurityHealthService.exe
    "C:\Windows.old\SecurityHealthService.exe"
    1⤵
    • Executes dropped EXE
    PID:5248
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "ShellHostS" /sc MINUTE /mo 10 /tr "'C:\Users\All Users\Application Data\ShellHost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5112
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "ShellHost" /sc ONLOGON /tr "'C:\Users\All Users\Application Data\ShellHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3736
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "ShellHostS" /sc MINUTE /mo 9 /tr "'C:\Users\All Users\Application Data\ShellHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:4164
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 5 /tr "'C:\Users\All Users\Documents\Idle.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3276
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Users\All Users\Documents\Idle.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5620
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 13 /tr "'C:\Users\All Users\Documents\Idle.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:5052
  • C:\Users\All Users\Documents\Idle.exe
    "C:\Users\All Users\Documents\Idle.exe"
    1⤵
      PID:5816
    • C:\Users\All Users\Application Data\ShellHost.exe
      "C:\Users\All Users\Application Data\ShellHost.exe"
      1⤵
        PID:4280
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "SecurityHealthServiceS" /sc MINUTE /mo 9 /tr "'C:\Windows\SystemTemp\Crashpad\SecurityHealthService.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2788
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "SecurityHealthService" /sc ONLOGON /tr "'C:\Windows\SystemTemp\Crashpad\SecurityHealthService.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:6608
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "SecurityHealthServiceS" /sc MINUTE /mo 5 /tr "'C:\Windows\SystemTemp\Crashpad\SecurityHealthService.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:5736
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\MSBuild\lsass.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:1124
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\Program Files (x86)\MSBuild\lsass.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2784
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\MSBuild\lsass.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:1656
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "explorere" /sc MINUTE /mo 6 /tr "'C:\Windows\Panther\FastCleanup\explorer.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2784
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Windows\Panther\FastCleanup\explorer.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:4308
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "explorere" /sc MINUTE /mo 10 /tr "'C:\Windows\Panther\FastCleanup\explorer.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Scheduled Task/Job: Scheduled Task
        PID:2636
      • C:\Program Files (x86)\MSBuild\lsass.exe
        "C:\Program Files (x86)\MSBuild\lsass.exe"
        1⤵
          PID:1316
        • C:\Windows\Panther\FastCleanup\explorer.exe
          "C:\Windows\Panther\FastCleanup\explorer.exe"
          1⤵
            PID:2152

          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 70b37b31aef9edfdb198c9c9b92c6e67bea51f44e439c6ca4d549274c15dc9e3
                • MD5 SHA1 SHA512 SSDEEP TLSH

                memory/4600-0-0x0000000074102000-0x0000000074103000-memory.dmp

                memory/4600-1-0x0000000005510000-0x00000000057C8000-memory.dmp

                memory/4600-2-0x00000000740F0000-0x00000000748AC000-memory.dmp

                memory/4600-4-0x00000000057D0000-0x0000000005D8A000-memory.dmp

                memory/4600-3-0x00000000740F0000-0x00000000748AC000-memory.dmp

                memory/4600-5-0x0000000005250000-0x0000000005506000-memory.dmp

                memory/4600-34-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-38-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-41-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-100-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-107-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-133-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-131-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-127-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-125-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-123-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-122-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-119-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-117-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-115-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-113-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-111-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-109-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-105-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-103-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-97-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-101-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-95-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-91-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-89-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-87-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-85-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-83-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-81-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-79-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-77-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-76-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-73-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-69-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-67-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-65-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-63-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-61-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-59-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-58-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-55-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-54-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-51-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-49-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-47-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-45-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-94-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-71-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-43-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-35-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-29-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-28-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-25-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-21-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-18-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-13-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-11-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-7-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-6-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-39-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-31-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-23-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-19-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-15-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-9-0x0000000005250000-0x0000000005501000-memory.dmp

                memory/4600-1809-0x0000000074102000-0x0000000074103000-memory.dmp

                memory/4600-1814-0x00000000740F0000-0x00000000748AC000-memory.dmp

                memory/4600-5228-0x00000000740F0000-0x00000000748AC000-memory.dmp

                memory/4600-5229-0x0000000002B80000-0x0000000002B9C000-memory.dmp

                memory/4600-5230-0x0000000002BB0000-0x0000000002C00000-memory.dmp

                memory/4600-5232-0x0000000006610000-0x0000000006620000-memory.dmp

                memory/4600-5231-0x0000000002C10000-0x0000000002C18000-memory.dmp

                memory/4600-5233-0x0000000006620000-0x0000000006636000-memory.dmp

                memory/4600-5234-0x0000000006660000-0x0000000006668000-memory.dmp

                memory/4600-5235-0x00000000066A0000-0x00000000066B2000-memory.dmp

                memory/4600-5236-0x0000000006B20000-0x0000000006B28000-memory.dmp

                memory/4600-5237-0x0000000006B70000-0x0000000006B80000-memory.dmp

                memory/4600-5238-0x0000000006BA0000-0x0000000006C32000-memory.dmp

                memory/4600-5239-0x00000000066B0000-0x00000000066BA000-memory.dmp

                memory/4600-5240-0x0000000006B50000-0x0000000006B58000-memory.dmp

                memory/4600-5241-0x0000000006B60000-0x0000000006B6C000-memory.dmp

                memory/4600-5242-0x0000000006C40000-0x0000000006C48000-memory.dmp

                memory/4600-5244-0x0000000006C50000-0x0000000006C62000-memory.dmp

                memory/4600-5245-0x0000000007CE0000-0x000000000820C000-memory.dmp

                memory/4600-5246-0x0000000008220000-0x000000000822C000-memory.dmp

                memory/4600-5247-0x0000000008240000-0x000000000824C000-memory.dmp

                memory/4600-5248-0x0000000008250000-0x000000000825C000-memory.dmp

                memory/4600-5249-0x0000000008270000-0x000000000827C000-memory.dmp

                memory/4600-5250-0x0000000008280000-0x0000000008288000-memory.dmp

                memory/4600-5252-0x0000000008630000-0x000000000863E000-memory.dmp

                memory/4600-5251-0x0000000008620000-0x000000000862A000-memory.dmp

                memory/4600-5255-0x0000000008680000-0x000000000868A000-memory.dmp

                memory/4600-5254-0x0000000008670000-0x0000000008678000-memory.dmp

                memory/4600-5253-0x0000000008660000-0x0000000008668000-memory.dmp

                memory/4600-5257-0x00000000740F0000-0x00000000748AC000-memory.dmp

                memory/4600-5256-0x00000000086B0000-0x00000000086BC000-memory.dmp

                memory/4600-5260-0x00000000086E0000-0x0000000008746000-memory.dmp

                memory/4600-6633-0x00000000740F0000-0x00000000748AC000-memory.dmp

                memory/4600-6982-0x00000000740F0000-0x00000000748AC000-memory.dmp