5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996

Processes:

5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe \"C:\\Windows\\system32\\IExplorer.exe\""	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\system32\\IExplorer.exe"	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe

Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs

Hidden Files and Directories

T1564.001

Modify Registry

Processes:

5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe

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

Hidden Files and Directories

T1564.001

Modify Registry

Processes:

5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe

Disables RegEdit via registry modification 2 IoCs

Processes:

5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.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

2732 xk.exe
2752 IExplorer.exe
760 WINLOGON.EXE
1712 CSRSS.EXE
1588 SERVICES.EXE
2560 LSASS.EXE
888 SMSS.EXE

pid	process
2732	xk.exe
2752	IExplorer.exe
760	WINLOGON.EXE
1712	CSRSS.EXE
1588	SERVICES.EXE
2560	LSASS.EXE
888	SMSS.EXE

Loads dropped DLL 12 IoCs

Processes:

5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe

pid	process
112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe

Modifies system executable filetype association 2 TTPs 13 IoCs

persistence

Modify Registry

Change Default File Association

T1546.001

Processes:

5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open\command	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\ = "File Folder"	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe

UPX packed file 21 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/112-0-0x0000000000400000-0x000000000042F000-memory.dmp	upx
C:\Users\Admin\AppData\Local\winlogon.exe	upx
C:\Windows\xk.exe	upx
behavioral1/memory/2732-112-0x0000000000400000-0x000000000042F000-memory.dmp	upx
\Windows\SysWOW64\IExplorer.exe	upx
behavioral1/memory/2732-117-0x0000000000400000-0x000000000042F000-memory.dmp	upx
behavioral1/memory/2752-126-0x0000000000400000-0x000000000042F000-memory.dmp	upx
\Users\Admin\AppData\Local\WINDOWS\WINLOGON.EXE	upx
behavioral1/memory/760-137-0x0000000000400000-0x000000000042F000-memory.dmp	upx
\Users\Admin\AppData\Local\WINDOWS\CSRSS.EXE	upx
behavioral1/memory/112-151-0x0000000000400000-0x000000000042F000-memory.dmp	upx
behavioral1/memory/1712-150-0x0000000000400000-0x000000000042F000-memory.dmp	upx
\Users\Admin\AppData\Local\WINDOWS\SERVICES.EXE	upx
behavioral1/memory/1588-158-0x0000000000400000-0x000000000042F000-memory.dmp	upx
behavioral1/memory/1588-161-0x0000000000400000-0x000000000042F000-memory.dmp	upx
\Users\Admin\AppData\Local\WINDOWS\LSASS.EXE	upx
behavioral1/memory/112-168-0x0000000001F20000-0x0000000001F4F000-memory.dmp	upx
\Users\Admin\AppData\Local\WINDOWS\SMSS.EXE	upx
behavioral1/memory/2560-173-0x0000000000400000-0x000000000042F000-memory.dmp	upx
behavioral1/memory/888-184-0x0000000000400000-0x000000000042F000-memory.dmp	upx
behavioral1/memory/112-186-0x0000000000400000-0x000000000042F000-memory.dmp	upx

Adds Run key to start application 2 TTPs 5 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

Processes:

5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\ServiceAdmin = "C:\\Users\\Admin\\Local Settings\\Application Data\\WINDOWS\\SERVICES.EXE"	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\LogonAdmin = "C:\\Users\\Admin\\Local Settings\\Application Data\\WINDOWS\\CSRSS.EXE"	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\System Monitoring = "C:\\Users\\Admin\\Local Settings\\Application Data\\WINDOWS\\LSASS.EXE"	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\xk = "C:\\Windows\\xk.exe"	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\MSMSGS = "C:\\Users\\Admin\\Local Settings\\Application Data\\WINDOWS\\WINLOGON.EXE"	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe

Drops file in System32 directory 6 IoCs

Processes:

5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe

description	ioc	process
File created	C:\Windows\SysWOW64\IExplorer.exe	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
File opened for modification	C:\Windows\SysWOW64\IExplorer.exe	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
File opened for modification	C:\Windows\SysWOW64\Mig2.scr	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
File opened for modification	C:\Windows\SysWOW64\shell.exe	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
File created	C:\Windows\SysWOW64\shell.exe	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
File created	C:\Windows\SysWOW64\Mig2.scr	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe

Drops file in Windows directory 2 IoCs

Processes:

5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe

description	ioc	process
File opened for modification	C:\Windows\xk.exe	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
File created	C:\Windows\xk.exe	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe

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

System Information Discovery
T1082

Modifies Control Panel 4 IoCs

Processes:

5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Control Panel\Desktop\	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Control Panel\Desktop\SCRNSAVE.EXE = "C:\\Windows\\system32\\Mig~mig.SCR"	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Control Panel\Desktop\ScreenSaverIsSecure = "0"	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Control Panel\Desktop\ScreenSaveTimeOut = "600"	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe

Modifies registry class 15 IoCs

Processes:

5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\ = "File Folder"	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open\command	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe

pid process

112 5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe

Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exexk.exeIExplorer.exeWINLOGON.EXECSRSS.EXESERVICES.EXELSASS.EXESMSS.EXE

pid	process
112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
2732	xk.exe
2752	IExplorer.exe
760	WINLOGON.EXE
1712	CSRSS.EXE
1588	SERVICES.EXE
2560	LSASS.EXE
888	SMSS.EXE

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe

description	pid	process	target process
PID 112 wrote to memory of 2732	112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe	xk.exe
PID 112 wrote to memory of 2732	112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe	xk.exe
PID 112 wrote to memory of 2732	112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe	xk.exe
PID 112 wrote to memory of 2732	112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe	xk.exe
PID 112 wrote to memory of 2752	112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe	IExplorer.exe
PID 112 wrote to memory of 2752	112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe	IExplorer.exe
PID 112 wrote to memory of 2752	112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe	IExplorer.exe
PID 112 wrote to memory of 2752	112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe	IExplorer.exe
PID 112 wrote to memory of 760	112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe	WINLOGON.EXE
PID 112 wrote to memory of 760	112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe	WINLOGON.EXE
PID 112 wrote to memory of 760	112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe	WINLOGON.EXE
PID 112 wrote to memory of 760	112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe	WINLOGON.EXE
PID 112 wrote to memory of 1712	112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe	CSRSS.EXE
PID 112 wrote to memory of 1712	112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe	CSRSS.EXE
PID 112 wrote to memory of 1712	112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe	CSRSS.EXE
PID 112 wrote to memory of 1712	112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe	CSRSS.EXE
PID 112 wrote to memory of 1588	112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe	SERVICES.EXE
PID 112 wrote to memory of 1588	112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe	SERVICES.EXE
PID 112 wrote to memory of 1588	112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe	SERVICES.EXE
PID 112 wrote to memory of 1588	112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe	SERVICES.EXE
PID 112 wrote to memory of 2560	112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe	LSASS.EXE
PID 112 wrote to memory of 2560	112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe	LSASS.EXE
PID 112 wrote to memory of 2560	112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe	LSASS.EXE
PID 112 wrote to memory of 2560	112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe	LSASS.EXE
PID 112 wrote to memory of 888	112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe	SMSS.EXE
PID 112 wrote to memory of 888	112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe	SMSS.EXE
PID 112 wrote to memory of 888	112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe	SMSS.EXE
PID 112 wrote to memory of 888	112	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe	SMSS.EXE

System policy modification 1 TTPs 4 IoCs

Modify Registry

Processes:

5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoFolderOptions = "1"	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe

C:\Users\Admin\AppData\Local\Temp\5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe
"C:\Users\Admin\AppData\Local\Temp\5f2765c65029f2b9afaceea119f6b0eaf40be3b7143eb94ec7723f7519368996.exe"
1⤵
- Modifies WinLogon for persistence
- Modifies visibility of file extensions in Explorer
- Modifies visiblity of hidden/system files in Explorer
- Disables RegEdit via registry modification
- Loads dropped DLL
- Modifies system executable filetype association
- 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:112

C:\Windows\xk.exe
C:\Windows\xk.exe
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:2732

C:\Windows\SysWOW64\IExplorer.exe
C:\Windows\system32\IExplorer.exe
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:2752

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:760

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:1712

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:1588

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:2560

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:888

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Defense Evasion

Hide Artifacts

2

T1564

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery