9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02

Processes:

9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe \"C:\\Windows\\system32\\IExplorer.exe\""	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\system32\\IExplorer.exe"	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe

Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs

Hidden Files and Directories

T1564.001

Modify Registry

Processes:

9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe

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

Hidden Files and Directories

T1564.001

Modify Registry

Processes:

9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe

Disables RegEdit via registry modification 2 IoCs

Processes:

9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.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

2752 xk.exe
2348 IExplorer.exe
1312 WINLOGON.EXE
784 CSRSS.EXE
2856 SERVICES.EXE
536 LSASS.EXE
1284 SMSS.EXE

pid	process
2752	xk.exe
2348	IExplorer.exe
1312	WINLOGON.EXE
784	CSRSS.EXE
2856	SERVICES.EXE
536	LSASS.EXE
1284	SMSS.EXE

Loads dropped DLL 12 IoCs

Processes:

9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe

pid	process
2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe

Modifies system executable filetype association 2 TTPs 13 IoCs

persistence

Modify Registry

Change Default File Association

T1546.001

Processes:

9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open\command	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\ = "File Folder"	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe

Adds Run key to start application 2 TTPs 5 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

Processes:

9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\xk = "C:\\Windows\\xk.exe"	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\MSMSGS = "C:\\Users\\Admin\\Local Settings\\Application Data\\WINDOWS\\WINLOGON.EXE"	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\ServiceAdmin = "C:\\Users\\Admin\\Local Settings\\Application Data\\WINDOWS\\SERVICES.EXE"	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\LogonAdmin = "C:\\Users\\Admin\\Local Settings\\Application Data\\WINDOWS\\CSRSS.EXE"	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\System Monitoring = "C:\\Users\\Admin\\Local Settings\\Application Data\\WINDOWS\\LSASS.EXE"	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe

Drops file in System32 directory 6 IoCs

Processes:

9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\shell.exe	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
File created	C:\Windows\SysWOW64\shell.exe	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
File created	C:\Windows\SysWOW64\Mig2.scr	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
File created	C:\Windows\SysWOW64\IExplorer.exe	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
File opened for modification	C:\Windows\SysWOW64\IExplorer.exe	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
File opened for modification	C:\Windows\SysWOW64\Mig2.scr	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe

UPX packed file 20 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2160-0-0x0000000000400000-0x000000000042F000-memory.dmp	upx
C:\Users\Admin\AppData\Local\winlogon.exe	upx
C:\Windows\xk.exe	upx
\Windows\SysWOW64\IExplorer.exe	upx
behavioral1/memory/2348-124-0x0000000000400000-0x000000000042F000-memory.dmp	upx
behavioral1/memory/2752-117-0x0000000000400000-0x000000000042F000-memory.dmp	upx
behavioral1/memory/2348-128-0x0000000000400000-0x000000000042F000-memory.dmp	upx
C:\Users\Admin\AppData\Local\WINDOWS\WINLOGON.EXE	upx
behavioral1/memory/1312-136-0x0000000000400000-0x000000000042F000-memory.dmp	upx
behavioral1/memory/1312-140-0x0000000000400000-0x000000000042F000-memory.dmp	upx
\Users\Admin\AppData\Local\WINDOWS\CSRSS.EXE	upx
behavioral1/memory/784-152-0x0000000000400000-0x000000000042F000-memory.dmp	upx
behavioral1/memory/2160-155-0x0000000000400000-0x000000000042F000-memory.dmp	upx
\Users\Admin\AppData\Local\WINDOWS\SERVICES.EXE	upx
behavioral1/memory/2856-163-0x0000000000400000-0x000000000042F000-memory.dmp	upx
C:\Users\Admin\AppData\Local\WINDOWS\LSASS.EXE	upx
behavioral1/memory/536-175-0x0000000000400000-0x000000000042F000-memory.dmp	upx
\Users\Admin\AppData\Local\WINDOWS\SMSS.EXE	upx
behavioral1/memory/1284-189-0x0000000000400000-0x000000000042F000-memory.dmp	upx
behavioral1/memory/2160-188-0x0000000000400000-0x000000000042F000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

Processes:

9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe

description	ioc	process
File opened for modification	C:\Windows\xk.exe	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
File created	C:\Windows\xk.exe	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

LSASS.EXESMSS.EXE9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exexk.exeIExplorer.exeWINLOGON.EXECSRSS.EXESERVICES.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	LSASS.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SMSS.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IExplorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WINLOGON.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CSRSS.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SERVICES.EXE

Modifies Control Panel 4 IoCs

Processes:

9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Control Panel\Desktop\SCRNSAVE.EXE = "C:\\Windows\\system32\\Mig~mig.SCR"	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Control Panel\Desktop\ScreenSaverIsSecure = "0"	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Control Panel\Desktop\ScreenSaveTimeOut = "600"	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Control Panel\Desktop\	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe

Modifies registry class 15 IoCs

Processes:

9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\ = "File Folder"	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open\command	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*"	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe

pid process

2160 9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe

Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exexk.exeIExplorer.exeWINLOGON.EXECSRSS.EXESERVICES.EXELSASS.EXESMSS.EXE

pid	process
2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
2752	xk.exe
2348	IExplorer.exe
1312	WINLOGON.EXE
784	CSRSS.EXE
2856	SERVICES.EXE
536	LSASS.EXE
1284	SMSS.EXE

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe

description	pid	process	target process
PID 2160 wrote to memory of 2752	2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe	xk.exe
PID 2160 wrote to memory of 2752	2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe	xk.exe
PID 2160 wrote to memory of 2752	2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe	xk.exe
PID 2160 wrote to memory of 2752	2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe	xk.exe
PID 2160 wrote to memory of 2348	2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe	IExplorer.exe
PID 2160 wrote to memory of 2348	2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe	IExplorer.exe
PID 2160 wrote to memory of 2348	2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe	IExplorer.exe
PID 2160 wrote to memory of 2348	2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe	IExplorer.exe
PID 2160 wrote to memory of 1312	2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe	WINLOGON.EXE
PID 2160 wrote to memory of 1312	2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe	WINLOGON.EXE
PID 2160 wrote to memory of 1312	2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe	WINLOGON.EXE
PID 2160 wrote to memory of 1312	2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe	WINLOGON.EXE
PID 2160 wrote to memory of 784	2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe	CSRSS.EXE
PID 2160 wrote to memory of 784	2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe	CSRSS.EXE
PID 2160 wrote to memory of 784	2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe	CSRSS.EXE
PID 2160 wrote to memory of 784	2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe	CSRSS.EXE
PID 2160 wrote to memory of 2856	2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe	SERVICES.EXE
PID 2160 wrote to memory of 2856	2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe	SERVICES.EXE
PID 2160 wrote to memory of 2856	2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe	SERVICES.EXE
PID 2160 wrote to memory of 2856	2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe	SERVICES.EXE
PID 2160 wrote to memory of 536	2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe	LSASS.EXE
PID 2160 wrote to memory of 536	2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe	LSASS.EXE
PID 2160 wrote to memory of 536	2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe	LSASS.EXE
PID 2160 wrote to memory of 536	2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe	LSASS.EXE
PID 2160 wrote to memory of 1284	2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe	SMSS.EXE
PID 2160 wrote to memory of 1284	2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe	SMSS.EXE
PID 2160 wrote to memory of 1284	2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe	SMSS.EXE
PID 2160 wrote to memory of 1284	2160	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe	SMSS.EXE

System policy modification 1 TTPs 4 IoCs

Modify Registry

Processes:

9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoFolderOptions = "1"	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe

C:\Users\Admin\AppData\Local\Temp\9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.exe
"C:\Users\Admin\AppData\Local\Temp\9cf08152f1c39c41797195feaaec1e5d8276a4f78bd5636607146bec3abb8a02.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
- System Location Discovery: System Language Discovery
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2160

C:\Windows\xk.exe
C:\Windows\xk.exe
2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:2752

C:\Windows\SysWOW64\IExplorer.exe
C:\Windows\system32\IExplorer.exe
2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:2348

C:\Users\Admin\Local Settings\Application Data\WINDOWS\WINLOGON.EXE
"C:\Users\Admin\Local Settings\Application Data\WINDOWS\WINLOGON.EXE"
2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:1312

C:\Users\Admin\Local Settings\Application Data\WINDOWS\CSRSS.EXE
"C:\Users\Admin\Local Settings\Application Data\WINDOWS\CSRSS.EXE"
2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:784

C:\Users\Admin\Local Settings\Application Data\WINDOWS\SERVICES.EXE
"C:\Users\Admin\Local Settings\Application Data\WINDOWS\SERVICES.EXE"
2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:2856

C:\Users\Admin\Local Settings\Application Data\WINDOWS\LSASS.EXE
"C:\Users\Admin\Local Settings\Application Data\WINDOWS\LSASS.EXE"
2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:536

C:\Users\Admin\Local Settings\Application Data\WINDOWS\SMSS.EXE
"C:\Users\Admin\Local Settings\Application Data\WINDOWS\SMSS.EXE"
2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:1284

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery