Analysis
- max time kernel
77s - max time network
141s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
22/04/2026, 14:29
General
- Target 2026-04-22_2ef2a289d8e262b8dd3e2596668bcdfb_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
- Size 1.7MB
- Sample260422-rt2mbag13k
- SHA256 b0d8df304febdb4106a93f44a40a2d0fc486953214087b909254fc9a8042f79a
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 2 IoCs
- Process spawned unexpected child process 6 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 11 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Executes dropped EXE 2 IoCs
- Adds Run key to start application 2 TTPs 4 IoCs
- Checks whether UAC is enabled 1 TTPs 2 IoCs
- SmartAssembly .NET packer 5 IoCs
Detects SmartAssembly .NET packer.
- Drops file in Program Files directory 5 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 15 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Modifies registry class 1 IoCs
- Scheduled Task/Job: Scheduled Task 1 TTPs 6 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of AdjustPrivilegeToken 14 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
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C:\Users\Admin\AppData\Local\Temp\2026-04-22_2ef2a289d8e262b8dd3e2596668bcdfb_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-22_2ef2a289d8e262b8dd3e2596668bcdfb_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
- Modifies registry class
- 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
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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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
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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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
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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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
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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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
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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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
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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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
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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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
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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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
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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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
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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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
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\bRrj8yHKXn.bat"2⤵
- System Location Discovery: System Language Discovery
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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:\Users\Admin\System.exe"C:\Users\Admin\System.exe"3⤵
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\ed935bba-9130-41bd-abb2-4bec8b9051ff.vbs"4⤵
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C:\Users\Admin\System.exeC:\Users\Admin\System.exe5⤵
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\ed4f6720-2a5b-4a0f-bece-1dd6e4cb7f65.vbs"4⤵
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 13 /tr "'C:\Program Files\Reference Assemblies\Microsoft\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\Reference Assemblies\Microsoft\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 5 /tr "'C:\Program Files\Reference Assemblies\Microsoft\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 "SystemS" /sc MINUTE /mo 11 /tr "'C:\Users\Admin\System.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Users\Admin\System.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 "SystemS" /sc MINUTE /mo 5 /tr "'C:\Users\Admin\System.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
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C:\Program Files\Reference Assemblies\Microsoft\winlogon.exe"C:\Program Files\Reference Assemblies\Microsoft\winlogon.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\6e6aa9c7-541e-4689-9903-3fe7db18ecd9.vbs"2⤵
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C:\Program Files\Reference Assemblies\Microsoft\winlogon.exe"C:\Program Files\Reference Assemblies\Microsoft\winlogon.exe"3⤵
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\05417d2a-7aba-4a82-b0f9-f81dfb0307f8.vbs"4⤵
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\19086b77-9861-49cd-b107-e39989ee9cff.vbs"4⤵
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\1c2517c4-fece-4d14-8d52-4d1c3ad3955b.vbs"2⤵
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C:\Users\Admin\System.exe"C:\Users\Admin\System.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
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
winlogon.exe
System.exe.log
powershell.exe.log
winlogon.exe.log
ModuleAnalysisCache
StartupProfileData-NonInteractive
StartupProfileData-NonInteractive
StartupProfileData-NonInteractive
StartupProfileData-NonInteractive
StartupProfileData-NonInteractive
StartupProfileData-NonInteractive
StartupProfileData-NonInteractive
StartupProfileData-NonInteractive
05417d2a-7aba-4a82-b0f9-f81dfb0307f8.vbs
1c2517c4-fece-4d14-8d52-4d1c3ad3955b.vbs
6e6aa9c7-541e-4689-9903-3fe7db18ecd9.vbs
__PSScriptPolicyTest_opsufcx1.2h2.ps1
bRrj8yHKXn.bat
ed4f6720-2a5b-4a0f-bece-1dd6e4cb7f65.vbs
ed935bba-9130-41bd-abb2-4bec8b9051ff.vbs
memory/1188-15991-0x0000000070C40000-0x0000000070C8C000-memory.dmp
memory/1616-15959-0x0000000070C40000-0x0000000070C8C000-memory.dmp
memory/1712-15915-0x0000000070C40000-0x0000000070C8C000-memory.dmp
memory/1732-15952-0x0000000070C40000-0x0000000070C8C000-memory.dmp
memory/2416-15882-0x0000000070C40000-0x0000000070C8C000-memory.dmp
memory/4028-15924-0x0000000070C40000-0x0000000070C8C000-memory.dmp
memory/4028-6377-0x0000000005010000-0x000000000563A000-memory.dmp
memory/4028-6376-0x0000000002750000-0x0000000002786000-memory.dmp
memory/4076-15975-0x0000000070C40000-0x0000000070C8C000-memory.dmp
memory/4296-15907-0x0000000070C40000-0x0000000070C8C000-memory.dmp
memory/5072-6-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-5239-0x0000000006920000-0x0000000006E4C000-memory.dmp
memory/5072-56-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-54-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-52-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-50-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-48-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-47-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-106-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-44-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-104-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-102-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-100-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-98-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-96-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-94-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-42-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-40-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-38-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-108-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-120-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-118-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-116-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-114-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-112-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-124-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-126-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-130-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-128-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-122-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-110-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-36-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-30-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-22-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-28-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-18-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-26-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-24-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-20-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-14-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-12-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-8-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-72-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-1619-0x00000000052E0000-0x00000000052F0000-memory.dmp
memory/5072-1901-0x00000000052E0000-0x00000000052F0000-memory.dmp
memory/5072-2194-0x00000000052E0000-0x00000000052F0000-memory.dmp
memory/5072-5228-0x00000000052E0000-0x00000000052F0000-memory.dmp
memory/5072-5229-0x0000000002BF0000-0x0000000002C0C000-memory.dmp
memory/5072-5230-0x0000000002C20000-0x0000000002C70000-memory.dmp
memory/5072-5231-0x0000000002C80000-0x0000000002C88000-memory.dmp
memory/5072-5232-0x0000000006280000-0x0000000006290000-memory.dmp
memory/5072-5233-0x00000000067B0000-0x00000000067C6000-memory.dmp
memory/5072-5234-0x0000000006590000-0x0000000006598000-memory.dmp
memory/5072-5235-0x0000000006910000-0x0000000006920000-memory.dmp
memory/5072-5236-0x00000000067E0000-0x00000000067EA000-memory.dmp
memory/5072-5237-0x0000000006810000-0x000000000681C000-memory.dmp
memory/5072-5238-0x0000000006820000-0x0000000006832000-memory.dmp
memory/5072-70-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-5240-0x00000000068B0000-0x00000000068BC000-memory.dmp
memory/5072-5241-0x00000000068C0000-0x00000000068CC000-memory.dmp
memory/5072-5243-0x00000000071D0000-0x00000000071D8000-memory.dmp
memory/5072-5244-0x00000000071E0000-0x00000000071EC000-memory.dmp
memory/5072-5245-0x00000000052E0000-0x00000000052F0000-memory.dmp
memory/5072-5242-0x00000000068F0000-0x00000000068FA000-memory.dmp
memory/5072-5246-0x0000000007210000-0x00000000072A2000-memory.dmp
memory/5072-5247-0x00000000072D0000-0x00000000072DC000-memory.dmp
memory/5072-5250-0x00000000072F0000-0x0000000007356000-memory.dmp
memory/5072-7642-0x00000000052E0000-0x00000000052F0000-memory.dmp
memory/5072-0-0x00000000052E0000-0x00000000052F0000-memory.dmp
memory/5072-1-0x0000000005570000-0x00000000057EC000-memory.dmp
memory/5072-2-0x00000000052E0000-0x00000000052F0000-memory.dmp
memory/5072-7969-0x00000000052E0000-0x00000000052F0000-memory.dmp
memory/5072-3-0x00000000057F0000-0x0000000005D96000-memory.dmp
memory/5072-4-0x00000000052F0000-0x000000000556A000-memory.dmp
memory/5072-74-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-5-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-10-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-16-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-34-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-32-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-62-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-79-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-68-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-66-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-64-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-76-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-60-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-59-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-90-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-80-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-83-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-84-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-92-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-86-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5072-88-0x00000000052F0000-0x0000000005564000-memory.dmp
memory/5260-14263-0x0000000007940000-0x000000000795A000-memory.dmp
memory/5260-14262-0x0000000007F80000-0x00000000085FA000-memory.dmp
memory/5260-7630-0x0000000006070000-0x00000000063C7000-memory.dmp
memory/5260-7520-0x0000000005F90000-0x0000000005FF6000-memory.dmp
memory/5260-15890-0x0000000007CB0000-0x0000000007CCA000-memory.dmp
memory/5260-15889-0x0000000007BB0000-0x0000000007BC5000-memory.dmp
memory/5260-15881-0x0000000007BA0000-0x0000000007BAE000-memory.dmp
memory/5260-15317-0x0000000007BF0000-0x0000000007C86000-memory.dmp
memory/5260-15318-0x0000000007B70000-0x0000000007B81000-memory.dmp
memory/5260-14631-0x00000000079B0000-0x00000000079BA000-memory.dmp
memory/5260-15949-0x0000000007CA0000-0x0000000007CA8000-memory.dmp
memory/5260-13453-0x0000000006A20000-0x0000000006A3E000-memory.dmp
memory/5260-7517-0x0000000005EF0000-0x0000000005F12000-memory.dmp
memory/5260-13454-0x00000000077B0000-0x0000000007854000-memory.dmp
memory/5260-13315-0x0000000007770000-0x00000000077A4000-memory.dmp
memory/5260-13316-0x0000000070C40000-0x0000000070C8C000-memory.dmp
memory/5260-8392-0x0000000006AC0000-0x0000000006B0C000-memory.dmp
memory/5260-8349-0x0000000006570000-0x000000000658E000-memory.dmp
memory/5620-15983-0x0000000070C40000-0x0000000070C8C000-memory.dmp
memory/5624-15891-0x0000000006C70000-0x0000000006C82000-memory.dmp
memory/5876-15966-0x0000000070C40000-0x0000000070C8C000-memory.dmp