Analysis

  • max time kernel
    47s
  • max time network
    147s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/10/2026, 15:48

General

  • Target
    2026-10-01_4321b81f391c4aecb3c0eb4eb6046fa0_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
  • Size 1.7MB
  • Sample261002-s88vlsdd77
  • SHA256 d6ec823919fbb0ff870c1f9b146927e9d58dac8f30cf2226201f10340cec21c1
  • 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 3 IoCs
  • Process spawned unexpected child process 9 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
  • Command and Scripting Interpreter: PowerShell 1 TTPs 12 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 6 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 5 IoCs

    Detects SmartAssembly .NET packer.

  • Drops file in Windows directory 5 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 4 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 9 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 12 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\2026-10-01_4321b81f391c4aecb3c0eb4eb6046fa0_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-01_4321b81f391c4aecb3c0eb4eb6046fa0_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe"
    1⤵
    • Modifies WinLogon for persistence
    • UAC bypass
    • 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
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:4400
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:3564
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/$Recycle.Bin/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:1340
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Documents and Settings/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:7116
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/PerfLogs/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:7136
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Program Files/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:1360
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Program Files (x86)/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:7164
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/ProgramData/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:1228
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Recovery/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:3032
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/System Volume Information/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:948
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Users/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:4232
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Windows/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:3460
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Windows.old/'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:4132
    • C:\Windows\RemotePackages\RemoteDesktops\Registry.exe
      "C:\Windows\RemotePackages\RemoteDesktops\Registry.exe"
      2⤵
        PID:5788
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 6 /tr "'C:\Windows\RemotePackages\RemoteDesktops\Registry.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:4916
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "Registry" /sc ONLOGON /tr "'C:\Windows\RemotePackages\RemoteDesktops\Registry.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1684
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 9 /tr "'C:\Windows\RemotePackages\RemoteDesktops\Registry.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2112
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 12 /tr "'C:\Recovery\WindowsRE\spoolsv.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:448
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\spoolsv.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:6088
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 10 /tr "'C:\Recovery\WindowsRE\spoolsv.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3440
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 10 /tr "'C:\Users\Default User\dllhost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2736
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Users\Default User\dllhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:6104
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 13 /tr "'C:\Users\Default User\dllhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1976
    • C:\Users\Default User\dllhost.exe
      "C:\Users\Default User\dllhost.exe"
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:3744
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\3cc4912b-54f5-4394-8282-94a9755363ba.vbs"
        2⤵
        • Executes a VBScript file via the Windows Script Host.
        PID:6560
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\df6942ed-a8c5-433d-a429-fb41d97a5acc.vbs"
        2⤵
        • Executes a VBScript file via the Windows Script Host.
        PID:2332
    • C:\Windows\RemotePackages\RemoteDesktops\Registry.exe
      "C:\Windows\RemotePackages\RemoteDesktops\Registry.exe"
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:808
    • C:\Recovery\WindowsRE\spoolsv.exe
      "C:\Recovery\WindowsRE\spoolsv.exe"
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2636

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          spoolsv.exe

          • Path C:\Recovery\WindowsRE\spoolsv.exe
          • Size 1.7MB
          • SHA256 819a7f0aa70f7af0f3bf3cc500a2bd325c529d1dccf961414c71e00e3c384c0b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          3cc4912b-54f5-4394-8282-94a9755363ba.vbs

          • Path C:\Users\Admin\AppData\Local\Temp\3cc4912b-54f5-4394-8282-94a9755363ba.vbs
          • Size 709B
          • SHA256 10e82b06d1dbb4e842aaf40fc2a04b086a4e336a12cdf994e09bf8c89db92899
          • MD5 SHA1 SHA512 TLSH

          __PSScriptPolicyTest_fsuuufwr.jos.psm1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fsuuufwr.jos.psm1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512 TLSH

          df6942ed-a8c5-433d-a429-fb41d97a5acc.vbs

          • Path C:\Users\Admin\AppData\Local\Temp\df6942ed-a8c5-433d-a429-fb41d97a5acc.vbs
          • Size 485B
          • SHA256 acd10bc323fd5415177142ed836b0381d1d0622ca299a9d478187942997daeea
          • MD5 SHA1 SHA512 TLSH

          dllhost.exe

          • Path C:\Users\Default\dllhost.exe
          • Size 1.7MB
          • SHA256 d6ec823919fbb0ff870c1f9b146927e9d58dac8f30cf2226201f10340cec21c1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Registry.exe

          • Path C:\Windows\RemotePackages\RemoteDesktops\Registry.exe
          • Size 1.7MB
          • SHA256 de4a2cb2814e656ecb8ee13bc3f6b441426a24bef5c10dd947b5bc3668ac6f6c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/948-23664-0x00000000700E0000-0x000000007012C000-memory.dmp

          memory/1228-23592-0x00000000700E0000-0x000000007012C000-memory.dmp

          memory/1340-23590-0x00000000700E0000-0x000000007012C000-memory.dmp

          memory/1340-21393-0x0000000005F10000-0x0000000005F5C000-memory.dmp

          memory/1340-21134-0x0000000005E30000-0x0000000005E4E000-memory.dmp

          memory/1340-15818-0x0000000005730000-0x0000000005796000-memory.dmp

          memory/1360-23742-0x00000000700E0000-0x000000007012C000-memory.dmp

          memory/3032-23665-0x00000000072E0000-0x0000000007383000-memory.dmp

          memory/3032-23605-0x0000000006530000-0x0000000006550000-memory.dmp

          memory/3032-23585-0x00000000700E0000-0x000000007012C000-memory.dmp

          memory/3032-23549-0x0000000006660000-0x0000000006696000-memory.dmp

          memory/3032-15491-0x0000000005280000-0x00000000052A2000-memory.dmp

          memory/4132-23584-0x00000000700E0000-0x000000007012C000-memory.dmp

          memory/4232-23650-0x00000000700E0000-0x000000007012C000-memory.dmp

          memory/4400-41-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-14-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-127-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-125-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-123-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-121-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-119-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-117-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-113-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-111-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-109-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-105-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-103-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-101-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-99-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-97-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-95-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-93-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-91-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-89-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-87-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-85-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-83-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-81-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-79-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-73-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-71-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-69-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-67-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-65-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-63-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-61-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-59-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-57-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-55-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-53-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-51-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-49-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-47-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-45-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-132-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-39-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-37-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-35-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-33-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-32-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-29-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-28-0x0000000074250000-0x0000000074A0C000-memory.dmp

          memory/4400-20-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-18-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-16-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-129-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-11-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-5-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-12-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-2194-0x0000000074262000-0x0000000074263000-memory.dmp

          memory/4400-2195-0x0000000074250000-0x0000000074A0C000-memory.dmp

          memory/4400-5228-0x0000000074250000-0x0000000074A0C000-memory.dmp

          memory/4400-5229-0x0000000004B80000-0x0000000004B9C000-memory.dmp

          memory/4400-5230-0x0000000004BB0000-0x0000000004C00000-memory.dmp

          memory/4400-5232-0x0000000006370000-0x0000000006380000-memory.dmp

          memory/4400-5231-0x0000000004C10000-0x0000000004C18000-memory.dmp

          memory/4400-5233-0x00000000063D0000-0x00000000063E6000-memory.dmp

          memory/4400-5234-0x00000000063B0000-0x00000000063B8000-memory.dmp

          memory/4400-5235-0x00000000063F0000-0x0000000006400000-memory.dmp

          memory/4400-5236-0x0000000006440000-0x000000000644A000-memory.dmp

          memory/4400-5237-0x00000000078D0000-0x00000000078DC000-memory.dmp

          memory/4400-5238-0x00000000078E0000-0x00000000078F2000-memory.dmp

          memory/4400-5239-0x0000000007910000-0x0000000007E3C000-memory.dmp

          memory/4400-5240-0x0000000007EA0000-0x0000000007EAC000-memory.dmp

          memory/4400-5241-0x0000000007EB0000-0x0000000007EBC000-memory.dmp

          memory/4400-5244-0x0000000008290000-0x000000000829C000-memory.dmp

          memory/4400-5245-0x00000000082A0000-0x0000000008332000-memory.dmp

          memory/4400-5243-0x0000000008280000-0x0000000008288000-memory.dmp

          memory/4400-5246-0x0000000008380000-0x000000000838C000-memory.dmp

          memory/4400-5242-0x0000000008270000-0x000000000827A000-memory.dmp

          memory/4400-5248-0x00000000083A0000-0x0000000008406000-memory.dmp

          memory/4400-5249-0x0000000074250000-0x0000000074A0C000-memory.dmp

          memory/4400-7423-0x0000000074250000-0x0000000074A0C000-memory.dmp

          memory/4400-8621-0x0000000074250000-0x0000000074A0C000-memory.dmp

          memory/4400-115-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-0-0x0000000074262000-0x0000000074263000-memory.dmp

          memory/4400-1-0x00000000053B0000-0x000000000562C000-memory.dmp

          memory/4400-4-0x0000000005130000-0x00000000053AA000-memory.dmp

          memory/4400-108-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-75-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-21412-0x0000000074250000-0x0000000074A0C000-memory.dmp

          memory/4400-77-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-43-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-24-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-26-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-3-0x0000000005630000-0x0000000005BEA000-memory.dmp

          memory/4400-22-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-8-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-6-0x0000000005130000-0x00000000053A4000-memory.dmp

          memory/4400-2-0x0000000074250000-0x0000000074A0C000-memory.dmp

          memory/7116-23725-0x00000000700E0000-0x000000007012C000-memory.dmp

          memory/7116-10839-0x0000000002C90000-0x0000000002CC6000-memory.dmp

          memory/7136-23574-0x00000000700E0000-0x000000007012C000-memory.dmp

          memory/7164-19260-0x0000000006130000-0x000000000648B000-memory.dmp

          memory/7164-11796-0x00000000055E0000-0x0000000005C2A000-memory.dmp