Analysis
- max time kernel
44s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
23/05/2026, 23:50
General
- Target 2026-05-23_10db481bbb94a7e73c694039851baf1a_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
- Size 1.7MB
- Sample260523-3vs74sft8y
- SHA256 f64587fb28e5c2566df26b6e0c9b5f55d2c1d2a2f5146ef68deecd00bf894305
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 6 IoCs
- Command and Scripting Interpreter: PowerShell 1 TTPs 11 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 8 IoCs
- Checks whether UAC is enabled 1 TTPs 2 IoCs
- SmartAssembly .NET packer 6 IoCs
Detects SmartAssembly .NET packer.
- Drops file in Program Files directory 10 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 12 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 24 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 11 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
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C:\Users\Admin\AppData\Local\Temp\2026-05-23_10db481bbb94a7e73c694039851baf1a_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-23_10db481bbb94a7e73c694039851baf1a_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 Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/'2⤵
- Command and Scripting Interpreter: PowerShell
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/$Recycle.Bin/'2⤵
- Command and Scripting Interpreter: PowerShell
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/Documents and Settings/'2⤵
- Command and Scripting Interpreter: PowerShell
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/PerfLogs/'2⤵
- Command and Scripting Interpreter: PowerShell
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/Program Files/'2⤵
- Command and Scripting Interpreter: PowerShell
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/Program Files (x86)/'2⤵
- Command and Scripting Interpreter: PowerShell
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/ProgramData/'2⤵
- Command and Scripting Interpreter: PowerShell
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/Recovery/'2⤵
- Command and Scripting Interpreter: PowerShell
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/System Volume Information/'2⤵
- Command and Scripting Interpreter: PowerShell
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/Users/'2⤵
- Command and Scripting Interpreter: PowerShell
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/Windows/'2⤵
- Command and Scripting Interpreter: PowerShell
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\yD89Tn4SZn.bat"2⤵
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C:\Windows\SysWOW64\w32tm.exew32tm /stripchart /computer:localhost /period:5 /dataonly /samples:23⤵
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C:\Windows\system32\w32tm.exew32tm /stripchart /computer:localhost /period:5 /dataonly /samples:24⤵
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C:\Program Files\Uninstall Information\SearchApp.exe"C:\Program Files\Uninstall Information\SearchApp.exe"3⤵
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\a47dceaf-7047-4c19-82a8-3f76c920a974.vbs"4⤵
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\acf9528e-9524-49a4-9fc6-17cf625716e1.vbs"4⤵
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 9 /tr "'C:\Program Files\Uninstall Information\SearchApp.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "SearchApp" /sc ONLOGON /tr "'C:\Program Files\Uninstall Information\SearchApp.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 13 /tr "'C:\Program Files\Uninstall Information\SearchApp.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 8 /tr "'C:\Recovery\WindowsRE\WmiPrvSE.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "WmiPrvSE" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\WmiPrvSE.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 12 /tr "'C:\Recovery\WindowsRE\WmiPrvSE.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "smsss" /sc MINUTE /mo 9 /tr "'C:\Users\Admin\OneDrive\smss.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Users\Admin\OneDrive\smss.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "smsss" /sc MINUTE /mo 5 /tr "'C:\Users\Admin\OneDrive\smss.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 13 /tr "'C:\Program Files\Windows Defender\en-US\winlogon.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Program Files\Windows Defender\en-US\winlogon.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 7 /tr "'C:\Program Files\Windows Defender\en-US\winlogon.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
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C:\Program Files\Uninstall Information\SearchApp.exe"C:\Program Files\Uninstall Information\SearchApp.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\OneDrive\smss.exe"C:\Users\Admin\OneDrive\smss.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
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C:\Recovery\WindowsRE\WmiPrvSE.exe"C:\Recovery\WindowsRE\WmiPrvSE.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\143c94c9-2129-4e83-8c09-72301d1513f6.vbs"2⤵
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C:\Recovery\WindowsRE\WmiPrvSE.exeC:\Recovery\WindowsRE\WmiPrvSE.exe3⤵
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\c88c93ef-5f74-4f8e-b903-f9745d6bbab2.vbs"2⤵
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C:\Program Files\Windows Defender\en-US\winlogon.exe"C:\Program Files\Windows Defender\en-US\winlogon.exe"1⤵
Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
4Replay Monitor
Loading Replay Monitor...
Downloads
SearchApp.exe
WmiPrvSE.exe.log
powershell.exe.log
ModuleAnalysisCache
StartupProfileData-NonInteractive
StartupProfileData-NonInteractive
StartupProfileData-NonInteractive
StartupProfileData-NonInteractive
StartupProfileData-NonInteractive
143c94c9-2129-4e83-8c09-72301d1513f6.vbs
RCX631.tmp
__PSScriptPolicyTest_yiy2co4j.nef.ps1
a47dceaf-7047-4c19-82a8-3f76c920a974.vbs
acf9528e-9524-49a4-9fc6-17cf625716e1.vbs
c88c93ef-5f74-4f8e-b903-f9745d6bbab2.vbs
yD89Tn4SZn.bat
memory/412-26523-0x0000000071000000-0x000000007104C000-memory.dmp
memory/1216-26768-0x0000000071000000-0x000000007104C000-memory.dmp
memory/2052-26310-0x0000000071000000-0x000000007104C000-memory.dmp
memory/3708-30674-0x0000000007450000-0x0000000007458000-memory.dmp
memory/3708-26429-0x0000000071000000-0x000000007104C000-memory.dmp
memory/3708-30481-0x0000000007470000-0x000000000748A000-memory.dmp
memory/4004-29716-0x0000000007D40000-0x0000000007D4E000-memory.dmp
memory/4004-26872-0x0000000071000000-0x000000007104C000-memory.dmp
memory/4004-30054-0x0000000007D50000-0x0000000007D64000-memory.dmp
memory/4276-26769-0x00000000077B0000-0x0000000007E2A000-memory.dmp
memory/4276-28250-0x0000000007350000-0x0000000007361000-memory.dmp
memory/4276-26288-0x0000000007000000-0x00000000070A3000-memory.dmp
memory/4276-26279-0x0000000071000000-0x000000007104C000-memory.dmp
memory/4276-27852-0x00000000073D0000-0x0000000007466000-memory.dmp
memory/4276-26775-0x0000000007130000-0x000000000714A000-memory.dmp
memory/4276-27461-0x00000000071C0000-0x00000000071CA000-memory.dmp
memory/4652-2121-0x0000000002B30000-0x0000000002B40000-memory.dmp
memory/4652-5241-0x0000000006800000-0x000000000680C000-memory.dmp
memory/4652-38-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-36-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-32-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-30-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-24-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-22-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-28-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-16-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-18-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-6-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-100-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-106-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-112-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-120-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-130-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-128-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-126-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-124-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-122-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-118-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-116-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-114-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-110-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-108-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-104-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-102-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-98-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-96-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-94-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-90-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-88-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-84-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-82-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-92-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-86-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-1757-0x0000000002B30000-0x0000000002B40000-memory.dmp
memory/4652-0-0x0000000002B30000-0x0000000002B40000-memory.dmp
memory/4652-2342-0x0000000002B30000-0x0000000002B40000-memory.dmp
memory/4652-5228-0x0000000002B30000-0x0000000002B40000-memory.dmp
memory/4652-5229-0x0000000002970000-0x000000000298C000-memory.dmp
memory/4652-5230-0x00000000029A0000-0x00000000029F0000-memory.dmp
memory/4652-5232-0x0000000006220000-0x0000000006230000-memory.dmp
memory/4652-5231-0x0000000002A00000-0x0000000002A08000-memory.dmp
memory/4652-5233-0x00000000062E0000-0x00000000062F6000-memory.dmp
memory/4652-5235-0x0000000006300000-0x0000000006310000-memory.dmp
memory/4652-5234-0x0000000006260000-0x0000000006268000-memory.dmp
memory/4652-5236-0x0000000006720000-0x000000000672A000-memory.dmp
memory/4652-5237-0x0000000006750000-0x000000000675C000-memory.dmp
memory/4652-5238-0x0000000006760000-0x0000000006772000-memory.dmp
memory/4652-5239-0x0000000006870000-0x0000000006D9C000-memory.dmp
memory/4652-5240-0x00000000067F0000-0x00000000067FC000-memory.dmp
memory/4652-40-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-5244-0x0000000007120000-0x000000000712C000-memory.dmp
memory/4652-5243-0x0000000006850000-0x0000000006858000-memory.dmp
memory/4652-5247-0x0000000002B30000-0x0000000002B40000-memory.dmp
memory/4652-5246-0x0000000007210000-0x000000000721C000-memory.dmp
memory/4652-5245-0x0000000007130000-0x00000000071C2000-memory.dmp
memory/4652-5250-0x0000000007230000-0x0000000007296000-memory.dmp
memory/4652-5242-0x0000000006830000-0x000000000683A000-memory.dmp
memory/4652-42-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-44-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-1-0x00000000052F0000-0x000000000556C000-memory.dmp
memory/4652-8124-0x0000000002B30000-0x0000000002B40000-memory.dmp
memory/4652-2-0x0000000002B30000-0x0000000002B40000-memory.dmp
memory/4652-3-0x0000000005570000-0x0000000005B14000-memory.dmp
memory/4652-46-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-4-0x0000000005070000-0x00000000052EA000-memory.dmp
memory/4652-10-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-49-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-8-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-5-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-50-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-13-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-14-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-54-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-58-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-20-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-60-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-62-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-26-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-34-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-64-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-66-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-68-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-70-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-52-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-74-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-76-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-78-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-56-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-80-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/4652-72-0x0000000005070000-0x00000000052E4000-memory.dmp
memory/6084-8179-0x0000000005950000-0x0000000005F78000-memory.dmp
memory/6084-8115-0x00000000052C0000-0x00000000052F6000-memory.dmp
memory/6084-26287-0x0000000007860000-0x000000000787E000-memory.dmp
memory/6084-26270-0x00000000077A0000-0x00000000077D2000-memory.dmp
memory/6084-26271-0x0000000071000000-0x000000007104C000-memory.dmp
memory/6084-25074-0x0000000006CE0000-0x0000000006D2C000-memory.dmp
memory/6084-25073-0x0000000006720000-0x000000000673E000-memory.dmp
memory/6100-27419-0x0000000071000000-0x000000007104C000-memory.dmp
memory/6112-26732-0x0000000071000000-0x000000007104C000-memory.dmp
memory/6132-12414-0x0000000006050000-0x0000000006072000-memory.dmp
memory/6132-12430-0x00000000061F0000-0x0000000006256000-memory.dmp
memory/6132-12434-0x00000000062D0000-0x0000000006624000-memory.dmp
memory/6132-26656-0x0000000071000000-0x000000007104C000-memory.dmp
memory/6136-26577-0x0000000071000000-0x000000007104C000-memory.dmp