ramnit | c9e415795841fbbb61ddf0191ba1d03a0554f2fcc6186da79bd0a4005008b359

Modify Existing Service

T1031

Processes:

PerX.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	PerX.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0"	PerX.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1"	PerX.exe

Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit
Sality
Sality is backdoor written in C++, first discovered in 2003.
backdoor sality
UAC bypass 3 TTPs 1 IoCs
evasion trojan

Bypass User Account Control
T1088

Disabling Security Tools
T1089

Modify Registry
T1112

Processes:

PerX.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" PerX.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	PerX.exe

Windows security bypass 2 TTPs 6 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

Processes:

PerX.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	PerX.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	PerX.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UacDisableNotify = "1"	PerX.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	PerX.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	PerX.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	PerX.exe

Executes dropped EXE 1 IoCs

Processes:

PerXmgr.exe

pid process

1916 PerXmgr.exe

pid	process
1916	PerXmgr.exe

UPX packed file 10 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/4772-133-0x0000000000400000-0x0000000000531000-memory.dmp	upx
behavioral2/memory/1916-138-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/4772-137-0x00000000024B0000-0x000000000353E000-memory.dmp	upx
behavioral2/memory/1916-140-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/1916-141-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/1916-139-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/4772-143-0x00000000024B0000-0x000000000353E000-memory.dmp	upx
behavioral2/memory/1916-144-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/4772-146-0x0000000000400000-0x0000000000531000-memory.dmp	upx
behavioral2/memory/4772-147-0x00000000024B0000-0x000000000353E000-memory.dmp	upx

Loads dropped DLL 1 IoCs

Processes:

PerXmgr.exe

pid process

1916 PerXmgr.exe

pid	process
1916	PerXmgr.exe

Windows security modification 2 TTPs 7 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

Processes:

PerX.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	PerX.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	PerX.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	PerX.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	PerX.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UacDisableNotify = "1"	PerX.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\Svc	PerX.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	PerX.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

PerX.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" PerX.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	PerX.exe

Enumerates connected drives 3 TTPs 22 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

Processes:

PerX.exe

description	ioc	process
File opened (read-only)	\??\J:	PerX.exe
File opened (read-only)	\??\K:	PerX.exe
File opened (read-only)	\??\Q:	PerX.exe
File opened (read-only)	\??\M:	PerX.exe
File opened (read-only)	\??\O:	PerX.exe
File opened (read-only)	\??\U:	PerX.exe
File opened (read-only)	\??\V:	PerX.exe
File opened (read-only)	\??\Z:	PerX.exe
File opened (read-only)	\??\G:	PerX.exe
File opened (read-only)	\??\H:	PerX.exe
File opened (read-only)	\??\L:	PerX.exe
File opened (read-only)	\??\F:	PerX.exe
File opened (read-only)	\??\W:	PerX.exe
File opened (read-only)	\??\P:	PerX.exe
File opened (read-only)	\??\R:	PerX.exe
File opened (read-only)	\??\S:	PerX.exe
File opened (read-only)	\??\T:	PerX.exe
File opened (read-only)	\??\X:	PerX.exe
File opened (read-only)	\??\E:	PerX.exe
File opened (read-only)	\??\I:	PerX.exe
File opened (read-only)	\??\N:	PerX.exe
File opened (read-only)	\??\Y:	PerX.exe

Drops autorun.inf file 1 TTPs 1 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media
T1091

Processes:

PerX.exe

description ioc process

File opened for modification C:\autorun.inf PerX.exe

description	ioc	process
File opened for modification	C:\autorun.inf	PerX.exe

Drops file in Program Files directory 11 IoCs

Processes:

PerX.exe

description	ioc	process
File opened for modification	C:\PROGRAM FILES\COMMON FILES\MICROSOFT SHARED\CLICKTORUN\IntegratedOffice.exe	PerX.exe
File opened for modification	C:\PROGRAM FILES\COMMON FILES\MICROSOFT SHARED\CLICKTORUN\MavInject32.exe	PerX.exe
File opened for modification	C:\PROGRAM FILES\COMMON FILES\MICROSOFT SHARED\CLICKTORUN\OfficeClickToRun.exe	PerX.exe
File opened for modification	C:\PROGRAM FILES\7-ZIP\7z.exe	PerX.exe
File opened for modification	C:\PROGRAM FILES\7-ZIP\Uninstall.exe	PerX.exe
File opened for modification	C:\PROGRAM FILES\COMMON FILES\MICROSOFT SHARED\CLICKTORUN\InspectorOfficeGadget.exe	PerX.exe
File opened for modification	C:\PROGRAM FILES\COMMON FILES\MICROSOFT SHARED\CLICKTORUN\AppVShNotify.exe	PerX.exe
File opened for modification	C:\PROGRAM FILES\COMMON FILES\MICROSOFT SHARED\CLICKTORUN\OfficeC2RClient.exe	PerX.exe
File opened for modification	C:\PROGRAM FILES\7-ZIP\7zFM.exe	PerX.exe
File opened for modification	C:\PROGRAM FILES\7-ZIP\7zG.exe	PerX.exe
File opened for modification	C:\PROGRAM FILES\COMMON FILES\MICROSOFT SHARED\CLICKTORUN\appvcleaner.exe	PerX.exe

Drops file in Windows directory 1 IoCs

Processes:

PerX.exe

description ioc process

File opened for modification C:\Windows\SYSTEM.INI PerX.exe
Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

4604 1916 WerFault.exe PerXmgr.exe
3160 1916 WerFault.exe PerXmgr.exe

description	ioc	process
File opened for modification	C:\Windows\SYSTEM.INI	PerX.exe

pid	pid_target	process	target process
4604	1916	WerFault.exe	PerXmgr.exe
3160	1916	WerFault.exe	PerXmgr.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

Processes:

WerFault.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WerFault.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WerFault.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WerFault.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

System Information Discovery

Processes:

WerFault.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WerFault.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WerFault.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

PerX.exe

pid	process
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe
4772	PerX.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

PerX.exe

description	pid	process
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe
Token: SeDebugPrivilege	4772	PerX.exe

Suspicious use of UnmapMainImage 1 IoCs

Processes:

PerXmgr.exe

pid process

1916 PerXmgr.exe

pid	process
1916	PerXmgr.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

PerX.exe

description	pid	process	target process
PID 4772 wrote to memory of 1916	4772	PerX.exe	PerXmgr.exe
PID 4772 wrote to memory of 1916	4772	PerX.exe	PerXmgr.exe
PID 4772 wrote to memory of 1916	4772	PerX.exe	PerXmgr.exe
PID 4772 wrote to memory of 792	4772	PerX.exe	fontdrvhost.exe
PID 4772 wrote to memory of 796	4772	PerX.exe	fontdrvhost.exe
PID 4772 wrote to memory of 1008	4772	PerX.exe	dwm.exe
PID 4772 wrote to memory of 2708	4772	PerX.exe	sihost.exe
PID 4772 wrote to memory of 2808	4772	PerX.exe	svchost.exe
PID 4772 wrote to memory of 2892	4772	PerX.exe	taskhostw.exe
PID 4772 wrote to memory of 2032	4772	PerX.exe	Explorer.EXE
PID 4772 wrote to memory of 3140	4772	PerX.exe	svchost.exe
PID 4772 wrote to memory of 3348	4772	PerX.exe	DllHost.exe
PID 4772 wrote to memory of 3444	4772	PerX.exe	StartMenuExperienceHost.exe
PID 4772 wrote to memory of 3512	4772	PerX.exe	RuntimeBroker.exe
PID 4772 wrote to memory of 3604	4772	PerX.exe	SearchApp.exe
PID 4772 wrote to memory of 3816	4772	PerX.exe	RuntimeBroker.exe
PID 4772 wrote to memory of 4704	4772	PerX.exe	RuntimeBroker.exe
PID 4772 wrote to memory of 1916	4772	PerX.exe	PerXmgr.exe
PID 4772 wrote to memory of 1916	4772	PerX.exe	PerXmgr.exe
PID 4772 wrote to memory of 2728	4772	PerX.exe
PID 4772 wrote to memory of 792	4772	PerX.exe	fontdrvhost.exe
PID 4772 wrote to memory of 796	4772	PerX.exe	fontdrvhost.exe
PID 4772 wrote to memory of 1008	4772	PerX.exe	dwm.exe
PID 4772 wrote to memory of 2708	4772	PerX.exe	sihost.exe
PID 4772 wrote to memory of 2808	4772	PerX.exe	svchost.exe
PID 4772 wrote to memory of 2892	4772	PerX.exe	taskhostw.exe
PID 4772 wrote to memory of 2032	4772	PerX.exe	Explorer.EXE
PID 4772 wrote to memory of 3140	4772	PerX.exe	svchost.exe
PID 4772 wrote to memory of 3348	4772	PerX.exe	DllHost.exe
PID 4772 wrote to memory of 3444	4772	PerX.exe	StartMenuExperienceHost.exe
PID 4772 wrote to memory of 3512	4772	PerX.exe	RuntimeBroker.exe
PID 4772 wrote to memory of 3604	4772	PerX.exe	SearchApp.exe
PID 4772 wrote to memory of 3816	4772	PerX.exe	RuntimeBroker.exe
PID 4772 wrote to memory of 4704	4772	PerX.exe	RuntimeBroker.exe
PID 4772 wrote to memory of 1916	4772	PerX.exe	PerXmgr.exe
PID 4772 wrote to memory of 1916	4772	PerX.exe	PerXmgr.exe
PID 4772 wrote to memory of 4620	4772	PerX.exe
PID 4772 wrote to memory of 4604	4772	PerX.exe	WerFault.exe
PID 4772 wrote to memory of 4604	4772	PerX.exe	WerFault.exe
PID 4772 wrote to memory of 792	4772	PerX.exe	fontdrvhost.exe
PID 4772 wrote to memory of 796	4772	PerX.exe	fontdrvhost.exe
PID 4772 wrote to memory of 1008	4772	PerX.exe	dwm.exe
PID 4772 wrote to memory of 2708	4772	PerX.exe	sihost.exe
PID 4772 wrote to memory of 2808	4772	PerX.exe	svchost.exe
PID 4772 wrote to memory of 2892	4772	PerX.exe	taskhostw.exe
PID 4772 wrote to memory of 2032	4772	PerX.exe	Explorer.EXE
PID 4772 wrote to memory of 3140	4772	PerX.exe	svchost.exe
PID 4772 wrote to memory of 3348	4772	PerX.exe	DllHost.exe
PID 4772 wrote to memory of 3444	4772	PerX.exe	StartMenuExperienceHost.exe
PID 4772 wrote to memory of 3512	4772	PerX.exe	RuntimeBroker.exe
PID 4772 wrote to memory of 3604	4772	PerX.exe	SearchApp.exe
PID 4772 wrote to memory of 3816	4772	PerX.exe	RuntimeBroker.exe
PID 4772 wrote to memory of 4704	4772	PerX.exe	RuntimeBroker.exe
PID 4772 wrote to memory of 1916	4772	PerX.exe	PerXmgr.exe
PID 4772 wrote to memory of 1916	4772	PerX.exe	PerXmgr.exe
PID 4772 wrote to memory of 792	4772	PerX.exe	fontdrvhost.exe
PID 4772 wrote to memory of 796	4772	PerX.exe	fontdrvhost.exe
PID 4772 wrote to memory of 1008	4772	PerX.exe	dwm.exe
PID 4772 wrote to memory of 2708	4772	PerX.exe	sihost.exe
PID 4772 wrote to memory of 2808	4772	PerX.exe	svchost.exe
PID 4772 wrote to memory of 2892	4772	PerX.exe	taskhostw.exe
PID 4772 wrote to memory of 2032	4772	PerX.exe	Explorer.EXE
PID 4772 wrote to memory of 3140	4772	PerX.exe	svchost.exe
PID 4772 wrote to memory of 3348	4772	PerX.exe	DllHost.exe

System policy modification 1 TTPs 1 IoCs
evasion

Modify Registry
T1112

Processes:

PerX.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" PerX.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	PerX.exe

C:\Windows\system32\dwm.exe
"dwm.exe"
1⤵
PID:1008

C:\Windows\system32\fontdrvhost.exe
"fontdrvhost.exe"
1⤵
PID:796

C:\Windows\system32\fontdrvhost.exe
"fontdrvhost.exe"
1⤵
PID:792

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:3512

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:4704

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:3816

C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
1⤵
PID:3604

C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
1⤵
PID:3444

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:3348

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
1⤵
PID:3140

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:2032

C:\Users\Admin\AppData\Local\Temp\PerX.exe
"C:\Users\Admin\AppData\Local\Temp\PerX.exe"
2⤵
- Modifies firewall policy service
- UAC bypass
- Windows security bypass
- Windows security modification
- Checks whether UAC is enabled
- Enumerates connected drives
- Drops autorun.inf file
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:4772

C:\Users\Admin\AppData\Local\Temp\PerXmgr.exe
C:\Users\Admin\AppData\Local\Temp\PerXmgr.exe
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of UnmapMainImage
PID:1916

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1916 -s 504
4⤵
- Program crash
- Checks processor information in registry
- Enumerates system info in registry
PID:4604

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1916 -s 440
4⤵
- Program crash
PID:3160

C:\Windows\system32\taskhostw.exe
taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
1⤵
PID:2892

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:2808

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1916 -ip 1916
1⤵
PID:4524

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 1916 -ip 1916
1⤵
PID:1280

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Replication Through Removable Media

T1091

Execution

Persistence

Modify Existing Service

T1031

Privilege Escalation

Bypass User Account Control

T1088

Defense Evasion

Modify Registry

5

Bypass User Account Control

T1088

Disabling Security Tools

3

T1089

Credential Access

Discovery

System Information Discovery

4

Query Registry

3

Peripheral Device Discovery

T1120

Lateral Movement

Replication Through Removable Media