5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138

Processes:

5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe \"C:\\Windows\\system32\\IExplorer.exe\""	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\system32\\IExplorer.exe"	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe

Modifies system executable filetype association 2 TTPs 13 IoCs

persistence

Modify Registry

Change Default File Association

T1042

Processes:

5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open\command	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\ = "File Folder"	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe

Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs

Hidden Files and Directories

Modify Registry

Processes:

5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

Hidden Files and Directories

Modify Registry

Processes:

5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe

Disables RegEdit via registry modification 2 IoCs

Processes:

5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe

Disables use of System Restore points 1 TTPs
evasion

Inhibit System Recovery
T1490
Executes dropped EXE 7 IoCs

Processes:

xk.exeIExplorer.exeWINLOGON.EXECSRSS.EXESERVICES.EXELSASS.EXESMSS.EXE

pid process

1312 xk.exe
1756 IExplorer.exe
1292 WINLOGON.EXE
964 CSRSS.EXE
896 SERVICES.EXE
680 LSASS.EXE
1392 SMSS.EXE

pid	process
1312	xk.exe
1756	IExplorer.exe
1292	WINLOGON.EXE
964	CSRSS.EXE
896	SERVICES.EXE
680	LSASS.EXE
1392	SMSS.EXE

UPX packed file 27 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
C:\Windows\xk.exe	upx
\Windows\SysWOW64\IExplorer.exe	upx
behavioral1/memory/1312-61-0x0000000000400000-0x000000000042F000-memory.dmp	upx
\Windows\SysWOW64\IExplorer.exe	upx
C:\Windows\SysWOW64\IExplorer.exe	upx
behavioral1/memory/1756-68-0x0000000000400000-0x000000000042F000-memory.dmp	upx
\Users\Admin\AppData\Local\WINDOWS\WINLOGON.EXE	upx
\Users\Admin\AppData\Local\WINDOWS\WINLOGON.EXE	upx
C:\Users\Admin\AppData\Local\WINDOWS\WINLOGON.EXE	upx
behavioral1/memory/1292-75-0x0000000000400000-0x000000000042F000-memory.dmp	upx
\Users\Admin\AppData\Local\WINDOWS\CSRSS.EXE	upx
C:\Users\Admin\AppData\Local\WINDOWS\CSRSS.EXE	upx
\Users\Admin\AppData\Local\WINDOWS\CSRSS.EXE	upx
behavioral1/memory/964-82-0x0000000000400000-0x000000000042F000-memory.dmp	upx
\Users\Admin\AppData\Local\WINDOWS\SERVICES.EXE	upx
\Users\Admin\AppData\Local\WINDOWS\SERVICES.EXE	upx
C:\Users\Admin\AppData\Local\WINDOWS\SERVICES.EXE	upx
behavioral1/memory/896-89-0x0000000000400000-0x000000000042F000-memory.dmp	upx
\Users\Admin\AppData\Local\WINDOWS\LSASS.EXE	upx
C:\Users\Admin\AppData\Local\WINDOWS\LSASS.EXE	upx
\Users\Admin\AppData\Local\WINDOWS\LSASS.EXE	upx
behavioral1/memory/680-96-0x0000000000400000-0x000000000042F000-memory.dmp	upx
\Users\Admin\AppData\Local\WINDOWS\SMSS.EXE	upx
\Users\Admin\AppData\Local\WINDOWS\SMSS.EXE	upx
C:\Users\Admin\AppData\Local\WINDOWS\SMSS.EXE	upx
behavioral1/memory/1972-104-0x0000000000400000-0x000000000042F000-memory.dmp	upx
behavioral1/memory/1392-103-0x0000000000400000-0x000000000042F000-memory.dmp	upx

Loads dropped DLL 12 IoCs

Processes:

5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe

pid	process
1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe

Adds Run key to start application 2 TTPs 7 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

Processes:

5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\xk = "C:\\Windows\\xk.exe"	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\MSMSGS = "C:\\Users\\Admin\\Local Settings\\Application Data\\WINDOWS\\WINLOGON.EXE"	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\ServiceAdmin = "C:\\Users\\Admin\\Local Settings\\Application Data\\WINDOWS\\SERVICES.EXE"	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\LogonAdmin = "C:\\Users\\Admin\\Local Settings\\Application Data\\WINDOWS\\CSRSS.EXE"	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\System Monitoring = "C:\\Users\\Admin\\Local Settings\\Application Data\\WINDOWS\\LSASS.EXE"	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe

Drops file in System32 directory 6 IoCs

Processes:

5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe

description	ioc	process
File created	C:\Windows\SysWOW64\shell.exe	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
File created	C:\Windows\SysWOW64\Mig2.scr	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
File created	C:\Windows\SysWOW64\IExplorer.exe	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
File opened for modification	C:\Windows\SysWOW64\IExplorer.exe	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
File opened for modification	C:\Windows\SysWOW64\Mig2.scr	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
File opened for modification	C:\Windows\SysWOW64\shell.exe	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe

Drops file in Windows directory 2 IoCs

Processes:

5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe

description	ioc	process
File opened for modification	C:\Windows\xk.exe	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
File created	C:\Windows\xk.exe	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies Control Panel 4 IoCs

Processes:

5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\Desktop\ScreenSaverIsSecure = "0"	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\Desktop\ScreenSaveTimeOut = "600"	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\Desktop\	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\Desktop\SCRNSAVE.EXE = "C:\\Windows\\system32\\Mig~mig.SCR"	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe

Modifies registry class 15 IoCs

Processes:

5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\ = "File Folder"	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open\command	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe

pid process

1972 5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe

Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exexk.exeIExplorer.exeWINLOGON.EXECSRSS.EXESERVICES.EXELSASS.EXESMSS.EXE

pid	process
1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
1312	xk.exe
1756	IExplorer.exe
1292	WINLOGON.EXE
964	CSRSS.EXE
896	SERVICES.EXE
680	LSASS.EXE
1392	SMSS.EXE

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe

description	pid	process	target process
PID 1972 wrote to memory of 1312	1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe	xk.exe
PID 1972 wrote to memory of 1312	1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe	xk.exe
PID 1972 wrote to memory of 1312	1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe	xk.exe
PID 1972 wrote to memory of 1312	1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe	xk.exe
PID 1972 wrote to memory of 1756	1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe	IExplorer.exe
PID 1972 wrote to memory of 1756	1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe	IExplorer.exe
PID 1972 wrote to memory of 1756	1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe	IExplorer.exe
PID 1972 wrote to memory of 1756	1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe	IExplorer.exe
PID 1972 wrote to memory of 1292	1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe	WINLOGON.EXE
PID 1972 wrote to memory of 1292	1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe	WINLOGON.EXE
PID 1972 wrote to memory of 1292	1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe	WINLOGON.EXE
PID 1972 wrote to memory of 1292	1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe	WINLOGON.EXE
PID 1972 wrote to memory of 964	1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe	CSRSS.EXE
PID 1972 wrote to memory of 964	1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe	CSRSS.EXE
PID 1972 wrote to memory of 964	1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe	CSRSS.EXE
PID 1972 wrote to memory of 964	1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe	CSRSS.EXE
PID 1972 wrote to memory of 896	1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe	SERVICES.EXE
PID 1972 wrote to memory of 896	1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe	SERVICES.EXE
PID 1972 wrote to memory of 896	1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe	SERVICES.EXE
PID 1972 wrote to memory of 896	1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe	SERVICES.EXE
PID 1972 wrote to memory of 680	1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe	LSASS.EXE
PID 1972 wrote to memory of 680	1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe	LSASS.EXE
PID 1972 wrote to memory of 680	1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe	LSASS.EXE
PID 1972 wrote to memory of 680	1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe	LSASS.EXE
PID 1972 wrote to memory of 1392	1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe	SMSS.EXE
PID 1972 wrote to memory of 1392	1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe	SMSS.EXE
PID 1972 wrote to memory of 1392	1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe	SMSS.EXE
PID 1972 wrote to memory of 1392	1972	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe	SMSS.EXE

System policy modification 1 TTPs 4 IoCs

Modify Registry

Processes:

5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoFolderOptions = "1"	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe

C:\Users\Admin\AppData\Local\Temp\5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe
"C:\Users\Admin\AppData\Local\Temp\5ccdbaba0b4e818fd6a30898ec037389a6d1249cc5a642b9f9760c55c7104138.exe"
1⤵
- Modifies WinLogon for persistence
- Modifies system executable filetype association
- Modifies visibility of file extensions in Explorer
- Modifies visiblity of hidden/system files in Explorer
- Disables RegEdit via registry modification
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1972

C:\Windows\xk.exe
C:\Windows\xk.exe
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:1312

C:\Windows\SysWOW64\IExplorer.exe
C:\Windows\system32\IExplorer.exe
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:1756

C:\Users\Admin\Local Settings\Application Data\WINDOWS\WINLOGON.EXE
"C:\Users\Admin\Local Settings\Application Data\WINDOWS\WINLOGON.EXE"
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:1292

C:\Users\Admin\Local Settings\Application Data\WINDOWS\CSRSS.EXE
"C:\Users\Admin\Local Settings\Application Data\WINDOWS\CSRSS.EXE"
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:964

C:\Users\Admin\Local Settings\Application Data\WINDOWS\SERVICES.EXE
"C:\Users\Admin\Local Settings\Application Data\WINDOWS\SERVICES.EXE"
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:896

C:\Users\Admin\Local Settings\Application Data\WINDOWS\LSASS.EXE
"C:\Users\Admin\Local Settings\Application Data\WINDOWS\LSASS.EXE"
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:680

C:\Users\Admin\Local Settings\Application Data\WINDOWS\SMSS.EXE
"C:\Users\Admin\Local Settings\Application Data\WINDOWS\SMSS.EXE"
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:1392

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Change Default File Association

T1042

Hidden Files and Directories

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry