dcrat | fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\L2Schemas\\services.exe\", \"C:\\Windows\\System32\\ncsi\\MusNotification.exe\", \"C:\\Recovery\\WindowsRE\\SearchApp.exe\", \"C:\\Windows\\Branding\\Basebrd\\ja-JP\\System.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\L2Schemas\\services.exe\", \"C:\\Windows\\System32\\ncsi\\MusNotification.exe\", \"C:\\Recovery\\WindowsRE\\SearchApp.exe\", \"C:\\Windows\\Branding\\Basebrd\\ja-JP\\System.exe\", \"C:\\Program Files\\Internet Explorer\\ja-JP\\System.exe\", \"C:\\Program Files (x86)\\Microsoft.NET\\Primary Interop Assemblies\\csrss.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\L2Schemas\\services.exe\", \"C:\\Windows\\System32\\ncsi\\MusNotification.exe\", \"C:\\Recovery\\WindowsRE\\SearchApp.exe\", \"C:\\Windows\\Branding\\Basebrd\\ja-JP\\System.exe\", \"C:\\Program Files\\Internet Explorer\\ja-JP\\System.exe\", \"C:\\Program Files (x86)\\Microsoft.NET\\Primary Interop Assemblies\\csrss.exe\", \"C:\\Users\\Default User\\sppsvc.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\L2Schemas\\services.exe\", \"C:\\Windows\\System32\\ncsi\\MusNotification.exe\", \"C:\\Recovery\\WindowsRE\\SearchApp.exe\", \"C:\\Windows\\Branding\\Basebrd\\ja-JP\\System.exe\", \"C:\\Program Files\\Internet Explorer\\ja-JP\\System.exe\", \"C:\\Program Files (x86)\\Microsoft.NET\\Primary Interop Assemblies\\csrss.exe\", \"C:\\Users\\Default User\\sppsvc.exe\", \"C:\\Program Files (x86)\\Windows NT\\Accessories\\en-US\\RuntimeBroker.exe\", \"C:\\Windows\\SystemApps\\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\\InputApp\\SuggestionUI\\TextInputHost.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\L2Schemas\\services.exe\", \"C:\\Windows\\System32\\ncsi\\MusNotification.exe\", \"C:\\Recovery\\WindowsRE\\SearchApp.exe\", \"C:\\Windows\\Branding\\Basebrd\\ja-JP\\System.exe\", \"C:\\Program Files\\Internet Explorer\\ja-JP\\System.exe\", \"C:\\Program Files (x86)\\Microsoft.NET\\Primary Interop Assemblies\\csrss.exe\", \"C:\\Users\\Default User\\sppsvc.exe\", \"C:\\Program Files (x86)\\Windows NT\\Accessories\\en-US\\RuntimeBroker.exe\", \"C:\\Windows\\SystemApps\\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\\InputApp\\SuggestionUI\\TextInputHost.exe\", \"C:\\Program Files\\Windows NT\\Accessories\\uk-UA\\sihost.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\L2Schemas\\services.exe\", \"C:\\Windows\\System32\\ncsi\\MusNotification.exe\", \"C:\\Recovery\\WindowsRE\\SearchApp.exe\", \"C:\\Windows\\Branding\\Basebrd\\ja-JP\\System.exe\", \"C:\\Program Files\\Internet Explorer\\ja-JP\\System.exe\", \"C:\\Program Files (x86)\\Microsoft.NET\\Primary Interop Assemblies\\csrss.exe\", \"C:\\Users\\Default User\\sppsvc.exe\", \"C:\\Program Files (x86)\\Windows NT\\Accessories\\en-US\\RuntimeBroker.exe\", \"C:\\Windows\\SystemApps\\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\\InputApp\\SuggestionUI\\TextInputHost.exe\", \"C:\\Program Files\\Windows NT\\Accessories\\uk-UA\\sihost.exe\", \"C:\\Windows\\System32\\wbem\\ndisimplatcim\\unsecapp.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\L2Schemas\\services.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\L2Schemas\\services.exe\", \"C:\\Windows\\System32\\ncsi\\MusNotification.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\L2Schemas\\services.exe\", \"C:\\Windows\\System32\\ncsi\\MusNotification.exe\", \"C:\\Recovery\\WindowsRE\\SearchApp.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\L2Schemas\\services.exe\", \"C:\\Windows\\System32\\ncsi\\MusNotification.exe\", \"C:\\Recovery\\WindowsRE\\SearchApp.exe\", \"C:\\Windows\\Branding\\Basebrd\\ja-JP\\System.exe\", \"C:\\Program Files\\Internet Explorer\\ja-JP\\System.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\L2Schemas\\services.exe\", \"C:\\Windows\\System32\\ncsi\\MusNotification.exe\", \"C:\\Recovery\\WindowsRE\\SearchApp.exe\", \"C:\\Windows\\Branding\\Basebrd\\ja-JP\\System.exe\", \"C:\\Program Files\\Internet Explorer\\ja-JP\\System.exe\", \"C:\\Program Files (x86)\\Microsoft.NET\\Primary Interop Assemblies\\csrss.exe\", \"C:\\Users\\Default User\\sppsvc.exe\", \"C:\\Program Files (x86)\\Windows NT\\Accessories\\en-US\\RuntimeBroker.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe

Process spawned unexpected child process 11 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3036	4996	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3616	4996	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4856	4996	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1760	4996	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4564	4996	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	32	4996	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3172	4996	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3480	4996	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4312	4996	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2180	4996	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1748	4996	schtasks.exe	82

UAC bypass 3 TTPs 6 IoCs

defense_evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	System.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	System.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	System.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe

DCRat payload 5 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
behavioral2/memory/2548-1-0x0000000000440000-0x0000000000534000-memory.dmp	dcrat
behavioral2/files/0x000a000000023b8c-20.dat	dcrat
behavioral2/files/0x000400000001e754-82.dat	dcrat
behavioral2/files/0x0033000000023b89-91.dat	dcrat
behavioral2/memory/2984-174-0x0000000000870000-0x0000000000964000-memory.dmp	dcrat

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe

Executes dropped EXE 1 IoCs

pid	Process
2984	System.exe

Adds Run key to start application 2 TTPs 22 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sppsvc = "\"C:\\Users\\Default User\\sppsvc.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sppsvc = "\"C:\\Users\\Default User\\sppsvc.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\TextInputHost = "\"C:\\Windows\\SystemApps\\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\\InputApp\\SuggestionUI\\TextInputHost.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\unsecapp = "\"C:\\Windows\\System32\\wbem\\ndisimplatcim\\unsecapp.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\services = "\"C:\\Windows\\L2Schemas\\services.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MusNotification = "\"C:\\Windows\\System32\\ncsi\\MusNotification.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System = "\"C:\\Program Files\\Internet Explorer\\ja-JP\\System.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sihost = "\"C:\\Program Files\\Windows NT\\Accessories\\uk-UA\\sihost.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SearchApp = "\"C:\\Recovery\\WindowsRE\\SearchApp.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System = "\"C:\\Program Files\\Internet Explorer\\ja-JP\\System.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RuntimeBroker = "\"C:\\Program Files (x86)\\Windows NT\\Accessories\\en-US\\RuntimeBroker.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\unsecapp = "\"C:\\Windows\\System32\\wbem\\ndisimplatcim\\unsecapp.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Program Files (x86)\\Microsoft.NET\\Primary Interop Assemblies\\csrss.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RuntimeBroker = "\"C:\\Program Files (x86)\\Windows NT\\Accessories\\en-US\\RuntimeBroker.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\TextInputHost = "\"C:\\Windows\\SystemApps\\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\\InputApp\\SuggestionUI\\TextInputHost.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System = "\"C:\\Windows\\Branding\\Basebrd\\ja-JP\\System.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System = "\"C:\\Windows\\Branding\\Basebrd\\ja-JP\\System.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Program Files (x86)\\Microsoft.NET\\Primary Interop Assemblies\\csrss.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sihost = "\"C:\\Program Files\\Windows NT\\Accessories\\uk-UA\\sihost.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\services = "\"C:\\Windows\\L2Schemas\\services.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MusNotification = "\"C:\\Windows\\System32\\ncsi\\MusNotification.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SearchApp = "\"C:\\Recovery\\WindowsRE\\SearchApp.exe\""	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe

Checks whether UAC is enabled 1 TTPs 4 IoCs

defense_evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	System.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	System.exe

Drops file in System32 directory 10 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\ncsi\RCX8001.tmp	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File opened for modification	C:\Windows\System32\ncsi\RCX8002.tmp	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File opened for modification	C:\Windows\System32\ncsi\MusNotification.exe	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File opened for modification	C:\Windows\System32\wbem\ndisimplatcim\RCX9562.tmp	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File created	C:\Windows\System32\ncsi\MusNotification.exe	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File created	C:\Windows\System32\ncsi\aa97147c4c782d4a77c6b7822ef5383b917e6cfb	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File created	C:\Windows\System32\wbem\ndisimplatcim\unsecapp.exe	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File created	C:\Windows\System32\wbem\ndisimplatcim\29c1c3cc0f76855c7e7456076a4ffc27e4947119	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File opened for modification	C:\Windows\System32\wbem\ndisimplatcim\RCX9561.tmp	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File opened for modification	C:\Windows\System32\wbem\ndisimplatcim\unsecapp.exe	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe

Drops file in Program Files directory 20 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft.NET\Primary Interop Assemblies\886983d96e3d3e31032c679b2d4ea91b6c05afef	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File created	C:\Program Files (x86)\Windows NT\Accessories\en-US\RuntimeBroker.exe	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File opened for modification	C:\Program Files (x86)\Windows NT\Accessories\en-US\RCX8E57.tmp	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File opened for modification	C:\Program Files\Windows NT\Accessories\uk-UA\RCX935B.tmp	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File opened for modification	C:\Program Files\Windows NT\Accessories\uk-UA\RCX935C.tmp	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File opened for modification	C:\Program Files\Windows NT\Accessories\uk-UA\sihost.exe	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File created	C:\Program Files\Internet Explorer\ja-JP\System.exe	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File created	C:\Program Files\Windows NT\Accessories\uk-UA\sihost.exe	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File opened for modification	C:\Program Files\Internet Explorer\ja-JP\RCX86FD.tmp	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File opened for modification	C:\Program Files\Internet Explorer\ja-JP\RCX876B.tmp	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File opened for modification	C:\Program Files (x86)\Microsoft.NET\Primary Interop Assemblies\RCX8970.tmp	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File opened for modification	C:\Program Files (x86)\Microsoft.NET\Primary Interop Assemblies\RCX89DE.tmp	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File created	C:\Program Files\Internet Explorer\ja-JP\27d1bcfc3c54e0e44ea423ffd4ee81fe73670a2a	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File created	C:\Program Files (x86)\Windows NT\Accessories\en-US\9e8d7a4ca61bd92aff00cc37a7a4d62a2cac998d	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File created	C:\Program Files\Windows NT\Accessories\uk-UA\66fc9ff0ee96c2b21f0cfded48750ae9e3032bf3	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File opened for modification	C:\Program Files (x86)\Windows NT\Accessories\en-US\RCX8E56.tmp	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File created	C:\Program Files (x86)\Microsoft.NET\Primary Interop Assemblies\csrss.exe	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File opened for modification	C:\Program Files\Internet Explorer\ja-JP\System.exe	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File opened for modification	C:\Program Files (x86)\Microsoft.NET\Primary Interop Assemblies\csrss.exe	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File opened for modification	C:\Program Files (x86)\Windows NT\Accessories\en-US\RuntimeBroker.exe	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe

Drops file in Windows directory 15 IoCs

description	ioc	Process
File created	C:\Windows\L2Schemas\c5b4cb5e9653cce737f29f72ba880dd4c4bab27d	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File created	C:\Windows\Branding\Basebrd\ja-JP\System.exe	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File opened for modification	C:\Windows\L2Schemas\RCX7DED.tmp	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File opened for modification	C:\Windows\Branding\Basebrd\ja-JP\System.exe	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File opened for modification	C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\SuggestionUI\RCX90D9.tmp	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File created	C:\Windows\L2Schemas\services.exe	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File opened for modification	C:\Windows\L2Schemas\RCX7DEC.tmp	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File created	C:\Windows\Branding\Basebrd\ja-JP\27d1bcfc3c54e0e44ea423ffd4ee81fe73670a2a	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File opened for modification	C:\Windows\Branding\Basebrd\ja-JP\RCX848A.tmp	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File created	C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\SuggestionUI\22eafd247d37c30fed3795ee41d259ec72bb351c	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File opened for modification	C:\Windows\Branding\Basebrd\ja-JP\RCX84F8.tmp	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File opened for modification	C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\SuggestionUI\RCX90D8.tmp	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File opened for modification	C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\SuggestionUI\TextInputHost.exe	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File opened for modification	C:\Windows\L2Schemas\services.exe	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
File created	C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\SuggestionUI\TextInputHost.exe	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000_Classes\Local Settings	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 11 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

pid	Process
3616	schtasks.exe
4856	schtasks.exe
32	schtasks.exe
3036	schtasks.exe
4564	schtasks.exe
3172	schtasks.exe
3480	schtasks.exe
4312	schtasks.exe
2180	schtasks.exe
1748	schtasks.exe
1760	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2548	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
2548	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
2548	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2548	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Token: SeDebugPrivilege	2984	System.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2548 wrote to memory of 3992	2548	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe	97
PID 2548 wrote to memory of 3992	2548	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe	97
PID 3992 wrote to memory of 3492	3992	cmd.exe	99
PID 3992 wrote to memory of 3492	3992	cmd.exe	99
PID 3992 wrote to memory of 2984	3992	cmd.exe	103
PID 3992 wrote to memory of 2984	3992	cmd.exe	103

System policy modification 1 TTPs 6 IoCs

defense_evasion

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	System.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	System.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	System.exe

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.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe
"C:\Users\Admin\AppData\Local\Temp\fe78f6e2b4e88176dab282d4b56de4d8038f497a11f2ffcc49c3d33149309707N.exe"
1⤵
- Modifies WinLogon for persistence
- UAC bypass
- Checks computer location settings
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in System32 directory
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2548
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\QmW3PVwdg9.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3992
- - C:\Windows\system32\w32tm.exe
    w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
    3⤵
    PID:3492
- - C:\Program Files\Internet Explorer\ja-JP\System.exe
    "C:\Program Files\Internet Explorer\ja-JP\System.exe"
    3⤵
    - UAC bypass
    - Executes dropped EXE
    - Checks whether UAC is enabled
    - Suspicious use of AdjustPrivilegeToken
    - System policy modification
    PID:2984

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Windows\L2Schemas\services.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3036

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "MusNotification" /sc ONLOGON /tr "'C:\Windows\System32\ncsi\MusNotification.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3616

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SearchApp" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\SearchApp.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4856

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Windows\Branding\Basebrd\ja-JP\System.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1760

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Program Files\Internet Explorer\ja-JP\System.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4564

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft.NET\Primary Interop Assemblies\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:32

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Users\Default User\sppsvc.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3172

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows NT\Accessories\en-US\RuntimeBroker.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3480

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "TextInputHost" /sc ONLOGON /tr "'C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\SuggestionUI\TextInputHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4312

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sihost" /sc ONLOGON /tr "'C:\Program Files\Windows NT\Accessories\uk-UA\sihost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2180

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "unsecapp" /sc ONLOGON /tr "'C:\Windows\System32\wbem\ndisimplatcim\unsecapp.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1748

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Scheduled Task

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Scheduled Task

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses