Analysis

  • max time kernel
    57s
  • max time network
    139s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    01/10/2026, 10:56

General

  • Target
    2026-09-30_863f6fad5eb0af44d8a56fffb741c5cf_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
  • Size 2.0MB
  • Sample261001-m1tstswt5m
  • SHA256 ddd3b419be72597dc934ef12f94dd2e558510ec945f08c08ba32893506ae2c77
  • 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 4 IoCs
  • Process spawned unexpected child process 12 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
  • Command and Scripting Interpreter: PowerShell 1 TTPs 5 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 8 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Executes a VBScript file via the Windows Script Host. 1 TTPs 2 IoCs
  • SmartAssembly .NET packer 7 IoCs

    Detects SmartAssembly .NET packer.

  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • 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 3 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 12 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 34 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 5 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\2026-09-30_863f6fad5eb0af44d8a56fffb741c5cf_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-30_863f6fad5eb0af44d8a56fffb741c5cf_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
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:5604
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\2026-09-30_863f6fad5eb0af44d8a56fffb741c5cf_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:6668
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\Favorites\Links\System.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:6692
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Windows.old\lsass.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:6712
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Windows.old\ctfmon.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:6720
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Windows.old\dllhost.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:6728
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\7G92lRQL3o.bat"
      2⤵
      • Executes a command shell one-liner
      PID:3036
      • C:\Windows\SysWOW64\w32tm.exe
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        3⤵
          PID:6816
          • C:\Windows\system32\w32tm.exe
            w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
            4⤵
              PID:5688
          • C:\Windows.old\dllhost.exe
            "C:\Windows.old\dllhost.exe"
            3⤵
              PID:1524
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 7 /tr "'C:\Users\Admin\Favorites\Links\System.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:3016
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Users\Admin\Favorites\Links\System.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:5216
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 7 /tr "'C:\Users\Admin\Favorites\Links\System.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:5460
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 5 /tr "'C:\Windows.old\lsass.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:5612
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\Windows.old\lsass.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:1220
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 11 /tr "'C:\Windows.old\lsass.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2800
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "ctfmonc" /sc MINUTE /mo 12 /tr "'C:\Windows.old\ctfmon.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:4864
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "ctfmon" /sc ONLOGON /tr "'C:\Windows.old\ctfmon.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:3188
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "ctfmonc" /sc MINUTE /mo 8 /tr "'C:\Windows.old\ctfmon.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2652
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 13 /tr "'C:\Windows.old\dllhost.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:2700
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Windows.old\dllhost.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:5332
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 7 /tr "'C:\Windows.old\dllhost.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Scheduled Task/Job: Scheduled Task
          PID:5892
        • C:\Windows.old\ctfmon.exe
          "C:\Windows.old\ctfmon.exe"
          1⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:4796
        • C:\Windows.old\dllhost.exe
          "C:\Windows.old\dllhost.exe"
          1⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:4572
          • C:\Windows\SysWOW64\WScript.exe
            "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\86207b28-8a10-4078-9fdd-4780687d1b09.vbs"
            2⤵
            • Executes a VBScript file via the Windows Script Host.
            PID:5528
          • C:\Windows\SysWOW64\WScript.exe
            "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\052576d4-1f0e-4d3f-b552-01a579884f02.vbs"
            2⤵
            • Executes a VBScript file via the Windows Script Host.
            PID:3216
        • C:\Users\Admin\Favorites\Links\System.exe
          "C:\Users\Admin\Favorites\Links\System.exe"
          1⤵
            PID:5504
          • C:\Windows.old\lsass.exe
            "C:\Windows.old\lsass.exe"
            1⤵
              PID:2832

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

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                  Downloads

                  ModuleAnalysisCache

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache
                  • Size 60KB
                  • SHA256 81d469831a0e4f95c7b0e70783fe880001b17a567e18f0e40ff9b1f9758c976f
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  052576d4-1f0e-4d3f-b552-01a579884f02.vbs

                  • Path C:\Users\Admin\AppData\Local\Temp\052576d4-1f0e-4d3f-b552-01a579884f02.vbs
                  • Size 478B
                  • SHA256 f5cbda19b7fdb9881ef100c1cfeab09442ea13fe74a2bb362a0fa257cf9eed91
                  • MD5 SHA1 SHA512 TLSH

                  7G92lRQL3o.bat

                  • Path C:\Users\Admin\AppData\Local\Temp\7G92lRQL3o.bat
                  • Size 191B
                  • SHA256 34c06495389e36ecfb5d096fe365dd4f8c187416c5d45d6737085b17f97ac286
                  • MD5 SHA1 SHA512 TLSH

                  86207b28-8a10-4078-9fdd-4780687d1b09.vbs

                  • Path C:\Users\Admin\AppData\Local\Temp\86207b28-8a10-4078-9fdd-4780687d1b09.vbs
                  • Size 702B
                  • SHA256 8fa1ad1839dcc81468b424a84b31ae7f33892db6862b6da4570e591836c9eaa8
                  • MD5 SHA1 SHA512 TLSH

                  __PSScriptPolicyTest_rutt1znw.tc2.ps1

                  • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rutt1znw.tc2.ps1
                  • Size 60B
                  • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                  • MD5 SHA1 SHA512 TLSH

                  System.exe

                  • Path C:\Users\Admin\Favorites\Links\System.exe
                  • Size 2.0MB
                  • SHA256 6107f0ab1a236822011f4efac141332702d310f735583d90de2fabd873d4c88f
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  ctfmon.exe

                  • Path C:\Windows.old\ctfmon.exe
                  • Size 2.0MB
                  • SHA256 ddd3b419be72597dc934ef12f94dd2e558510ec945f08c08ba32893506ae2c77
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  lsass.exe

                  • Path C:\Windows.old\lsass.exe
                  • Size 2.0MB
                  • SHA256 d1ea67877c6fa4de93b90258cfb1966e1b4b6dda584f207f57cc802aa8c6027c
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  memory/4572-15759-0x00000000061E0000-0x00000000061F2000-memory.dmp

                  memory/5604-54-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-5234-0x0000000006770000-0x0000000006786000-memory.dmp

                  memory/5604-7-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-12-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-24-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-23-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-26-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-64-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-86-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-92-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-94-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-126-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-132-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-130-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-128-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-124-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-122-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-120-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-118-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-116-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-114-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-112-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-110-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-108-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-104-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-102-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-98-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-97-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-107-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-100-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-90-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-89-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-82-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-80-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-76-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-74-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-73-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-70-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-68-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-66-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-84-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-78-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-63-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-58-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-56-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-53-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-50-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-48-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-46-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-60-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-4-0x0000000005910000-0x0000000005ECA000-memory.dmp

                  memory/5604-42-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-38-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-34-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-30-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-28-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-6-0x0000000074C00000-0x00000000753BC000-memory.dmp

                  memory/5604-37-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-44-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-32-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-20-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-18-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-16-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-14-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-10-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-8-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-728-0x0000000074C12000-0x0000000074C13000-memory.dmp

                  memory/5604-877-0x0000000074C00000-0x00000000753BC000-memory.dmp

                  memory/5604-5229-0x0000000074C00000-0x00000000753BC000-memory.dmp

                  memory/5604-5230-0x0000000004D10000-0x0000000004D2C000-memory.dmp

                  memory/5604-5231-0x0000000004D40000-0x0000000004D90000-memory.dmp

                  memory/5604-5232-0x0000000004DA0000-0x0000000004DA8000-memory.dmp

                  memory/5604-5233-0x0000000006760000-0x0000000006770000-memory.dmp

                  memory/5604-40-0x0000000005390000-0x0000000005641000-memory.dmp

                  memory/5604-5235-0x00000000067B0000-0x00000000067B8000-memory.dmp

                  memory/5604-5236-0x00000000067C0000-0x00000000067D2000-memory.dmp

                  memory/5604-5237-0x0000000006C70000-0x0000000006C78000-memory.dmp

                  memory/5604-5238-0x0000000006800000-0x0000000006810000-memory.dmp

                  memory/5604-5239-0x0000000006C90000-0x0000000006D22000-memory.dmp

                  memory/5604-5240-0x0000000006D30000-0x0000000006D3A000-memory.dmp

                  memory/5604-5242-0x0000000006DB0000-0x0000000006DBC000-memory.dmp

                  memory/5604-5243-0x0000000006DD0000-0x0000000006DD8000-memory.dmp

                  memory/5604-5241-0x0000000006D50000-0x0000000006D58000-memory.dmp

                  memory/5604-5245-0x0000000006D70000-0x0000000006D82000-memory.dmp

                  memory/5604-5246-0x0000000007F90000-0x00000000084BC000-memory.dmp

                  memory/5604-5247-0x0000000006E10000-0x0000000006E1C000-memory.dmp

                  memory/5604-5248-0x0000000008500000-0x000000000850C000-memory.dmp

                  memory/5604-5249-0x0000000008510000-0x000000000851C000-memory.dmp

                  memory/5604-5250-0x0000000008530000-0x000000000853C000-memory.dmp

                  memory/5604-5253-0x00000000087F0000-0x00000000087FE000-memory.dmp

                  memory/5604-5252-0x00000000087E0000-0x00000000087EA000-memory.dmp

                  memory/5604-5255-0x0000000008930000-0x0000000008938000-memory.dmp

                  memory/5604-5256-0x0000000008940000-0x000000000894A000-memory.dmp

                  memory/5604-5254-0x0000000008920000-0x0000000008928000-memory.dmp

                  memory/5604-5257-0x0000000074C00000-0x00000000753BC000-memory.dmp

                  memory/5604-5251-0x0000000008540000-0x0000000008548000-memory.dmp

                  memory/5604-5258-0x0000000006630000-0x000000000663C000-memory.dmp

                  memory/5604-5260-0x00000000089B0000-0x0000000008A16000-memory.dmp

                  memory/5604-6910-0x0000000074C00000-0x00000000753BC000-memory.dmp

                  memory/5604-7358-0x0000000074C00000-0x00000000753BC000-memory.dmp

                  memory/5604-0-0x0000000074C12000-0x0000000074C13000-memory.dmp

                  memory/5604-2-0x0000000005650000-0x0000000005908000-memory.dmp

                  memory/5604-1-0x0000000074C00000-0x00000000753BC000-memory.dmp

                  memory/5604-12717-0x0000000074C00000-0x00000000753BC000-memory.dmp

                  memory/5604-3-0x0000000074C00000-0x00000000753BC000-memory.dmp

                  memory/5604-5-0x0000000005390000-0x0000000005646000-memory.dmp

                  memory/6668-10697-0x0000000006130000-0x000000000648B000-memory.dmp

                  memory/6668-8048-0x0000000002D40000-0x0000000002D76000-memory.dmp

                  memory/6692-15075-0x00000000068C0000-0x000000000690C000-memory.dmp

                  memory/6692-14871-0x0000000006440000-0x000000000645E000-memory.dmp

                  memory/6712-8339-0x0000000005140000-0x000000000578A000-memory.dmp

                  memory/6712-9822-0x0000000005860000-0x00000000058C6000-memory.dmp

                  memory/6728-9816-0x0000000006000000-0x0000000006022000-memory.dmp