dcrat | 7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\System32\\KBDBUG\\lsass.exe\""	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\System32\\KBDBUG\\lsass.exe\", \"C:\\Windows\\System32\\kbdlisub\\fontdrvhost.exe\""	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\System32\\KBDBUG\\lsass.exe\", \"C:\\Windows\\System32\\kbdlisub\\fontdrvhost.exe\", \"C:\\Windows\\System32\\VAN\\fontdrvhost.exe\""	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\System32\\KBDBUG\\lsass.exe\", \"C:\\Windows\\System32\\kbdlisub\\fontdrvhost.exe\", \"C:\\Windows\\System32\\VAN\\fontdrvhost.exe\", \"C:\\Users\\Admin\\AppData\\Local\\Temp\\{40E1AFD1-570C-4984-A508-7F615ABCCB7F} - OProcSessId\\7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe\""	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\System32\\KBDBUG\\lsass.exe\", \"C:\\Windows\\System32\\kbdlisub\\fontdrvhost.exe\", \"C:\\Windows\\System32\\VAN\\fontdrvhost.exe\", \"C:\\Users\\Admin\\AppData\\Local\\Temp\\{40E1AFD1-570C-4984-A508-7F615ABCCB7F} - OProcSessId\\7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe\", \"C:\\Windows\\SystemApps\\Microsoft.Windows.Search_cw5n1h2txyewy\\AppxBlockMap\\SearchApp.exe\""	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\System32\\KBDBUG\\lsass.exe\", \"C:\\Windows\\System32\\kbdlisub\\fontdrvhost.exe\", \"C:\\Windows\\System32\\VAN\\fontdrvhost.exe\", \"C:\\Users\\Admin\\AppData\\Local\\Temp\\{40E1AFD1-570C-4984-A508-7F615ABCCB7F} - OProcSessId\\7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe\", \"C:\\Windows\\SystemApps\\Microsoft.Windows.Search_cw5n1h2txyewy\\AppxBlockMap\\SearchApp.exe\", \"C:\\Windows\\System32\\DiagnosticInvoker\\spoolsv.exe\""	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\System32\\KBDBUG\\lsass.exe\", \"C:\\Windows\\System32\\kbdlisub\\fontdrvhost.exe\", \"C:\\Windows\\System32\\VAN\\fontdrvhost.exe\", \"C:\\Users\\Admin\\AppData\\Local\\Temp\\{40E1AFD1-570C-4984-A508-7F615ABCCB7F} - OProcSessId\\7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe\", \"C:\\Windows\\SystemApps\\Microsoft.Windows.Search_cw5n1h2txyewy\\AppxBlockMap\\SearchApp.exe\", \"C:\\Windows\\System32\\DiagnosticInvoker\\spoolsv.exe\", \"C:\\Windows\\System32\\InprocLogger\\backgroundTaskHost.exe\""	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\System32\\KBDBUG\\lsass.exe\", \"C:\\Windows\\System32\\kbdlisub\\fontdrvhost.exe\", \"C:\\Windows\\System32\\VAN\\fontdrvhost.exe\", \"C:\\Users\\Admin\\AppData\\Local\\Temp\\{40E1AFD1-570C-4984-A508-7F615ABCCB7F} - OProcSessId\\7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe\", \"C:\\Windows\\SystemApps\\Microsoft.Windows.Search_cw5n1h2txyewy\\AppxBlockMap\\SearchApp.exe\", \"C:\\Windows\\System32\\DiagnosticInvoker\\spoolsv.exe\", \"C:\\Windows\\System32\\InprocLogger\\backgroundTaskHost.exe\", \"C:\\Recovery\\WindowsRE\\Idle.exe\""	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe

Process spawned unexpected child process 8 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	3156	1660	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1812	1660	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4880	1660	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2956	1660	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1720	1660	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3884	1660	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4616	1660	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1884	1660	schtasks.exe	83

UAC bypass 3 TTPs 6 IoCs

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\EnableLUA = "0"	spoolsv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	spoolsv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	spoolsv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe

DCRat payload 6 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
behavioral2/memory/1648-1-0x0000000000660000-0x0000000000754000-memory.dmp	dcrat
behavioral2/files/0x000a000000023b88-20.dat	dcrat
behavioral2/files/0x000b000000023b7d-54.dat	dcrat
behavioral2/files/0x000c000000023b7d-64.dat	dcrat
behavioral2/files/0x000c000000023b81-75.dat	dcrat
behavioral2/files/0x000c000000023b85-86.dat	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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe

Executes dropped EXE 1 IoCs

pid	Process
452	spoolsv.exe

Adds Run key to start application 2 TTPs 16 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fontdrvhost = "\"C:\\Windows\\System32\\VAN\\fontdrvhost.exe\""	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\spoolsv = "\"C:\\Windows\\System32\\DiagnosticInvoker\\spoolsv.exe\""	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\backgroundTaskHost = "\"C:\\Windows\\System32\\InprocLogger\\backgroundTaskHost.exe\""	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Idle = "\"C:\\Recovery\\WindowsRE\\Idle.exe\""	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lsass = "\"C:\\Windows\\System32\\KBDBUG\\lsass.exe\""	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\{40E1AFD1-570C-4984-A508-7F615ABCCB7F} - OProcSessId\\7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe\""	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lsass = "\"C:\\Windows\\System32\\KBDBUG\\lsass.exe\""	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\{40E1AFD1-570C-4984-A508-7F615ABCCB7F} - OProcSessId\\7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe\""	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SearchApp = "\"C:\\Windows\\SystemApps\\Microsoft.Windows.Search_cw5n1h2txyewy\\AppxBlockMap\\SearchApp.exe\""	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\spoolsv = "\"C:\\Windows\\System32\\DiagnosticInvoker\\spoolsv.exe\""	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Idle = "\"C:\\Recovery\\WindowsRE\\Idle.exe\""	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fontdrvhost = "\"C:\\Windows\\System32\\kbdlisub\\fontdrvhost.exe\""	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fontdrvhost = "\"C:\\Windows\\System32\\kbdlisub\\fontdrvhost.exe\""	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fontdrvhost = "\"C:\\Windows\\System32\\VAN\\fontdrvhost.exe\""	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SearchApp = "\"C:\\Windows\\SystemApps\\Microsoft.Windows.Search_cw5n1h2txyewy\\AppxBlockMap\\SearchApp.exe\""	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\backgroundTaskHost = "\"C:\\Windows\\System32\\InprocLogger\\backgroundTaskHost.exe\""	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	spoolsv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	spoolsv.exe

Drops file in System32 directory 25 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\DiagnosticInvoker\spoolsv.exe	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
File opened for modification	C:\Windows\System32\InprocLogger\RCXA0F2.tmp	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
File created	C:\Windows\System32\VAN\5b884080fd4f94e2695da25c503f9e33b9605b83	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
File created	C:\Windows\System32\InprocLogger\backgroundTaskHost.exe	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
File opened for modification	C:\Windows\System32\DiagnosticInvoker\RCX9EDD.tmp	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
File opened for modification	C:\Windows\System32\KBDBUG\RCX92BD.tmp	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
File opened for modification	C:\Windows\System32\kbdlisub\RCX94D2.tmp	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
File opened for modification	C:\Windows\System32\kbdlisub\RCX9550.tmp	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
File opened for modification	C:\Windows\System32\VAN\RCX9754.tmp	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
File created	C:\Windows\System32\KBDBUG\6203df4a6bafc7c328ee7f6f8ca0a8a838a8a1b9	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
File created	C:\Windows\System32\kbdlisub\5b884080fd4f94e2695da25c503f9e33b9605b83	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
File created	C:\Windows\System32\InprocLogger\eddb19405b7ce1152b3e19997f2b467f0b72b3d3	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
File created	C:\Windows\System32\VAN\fontdrvhost.exe	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
File created	C:\Windows\System32\DiagnosticInvoker\spoolsv.exe	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
File created	C:\Windows\System32\DiagnosticInvoker\f3b6ecef712a24f33798f5d2fb3790c3d9b894c4	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
File opened for modification	C:\Windows\System32\kbdlisub\fontdrvhost.exe	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
File opened for modification	C:\Windows\System32\VAN\RCX97D2.tmp	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
File created	C:\Windows\System32\KBDBUG\lsass.exe	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
File opened for modification	C:\Windows\System32\KBDBUG\lsass.exe	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
File created	C:\Windows\System32\kbdlisub\fontdrvhost.exe	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
File opened for modification	C:\Windows\System32\VAN\fontdrvhost.exe	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
File opened for modification	C:\Windows\System32\InprocLogger\backgroundTaskHost.exe	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
File opened for modification	C:\Windows\System32\KBDBUG\RCX92BC.tmp	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
File opened for modification	C:\Windows\System32\DiagnosticInvoker\RCX9EDC.tmp	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
File opened for modification	C:\Windows\System32\InprocLogger\RCXA0F1.tmp	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe

Drops file in Windows directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\AppxBlockMap\RCX9CD7.tmp	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
File opened for modification	C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\AppxBlockMap\SearchApp.exe	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
File created	C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\AppxBlockMap\SearchApp.exe	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
File created	C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\AppxBlockMap\38384e6a620884a6b69bcc56f80d556f9200171c	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
File opened for modification	C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\AppxBlockMap\RCX9C59.tmp	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.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-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 8 IoCs

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

persistence execution

Scheduled Task

pid	Process
3156	schtasks.exe
1812	schtasks.exe
4880	schtasks.exe
2956	schtasks.exe
1720	schtasks.exe
3884	schtasks.exe
4616	schtasks.exe
1884	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1648	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
1648	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
1648	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
1648	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
1648	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
1648	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
1648	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1648	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Token: SeDebugPrivilege	452	spoolsv.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1648 wrote to memory of 100	1648	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe	93
PID 1648 wrote to memory of 100	1648	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe	93
PID 100 wrote to memory of 4116	100	cmd.exe	95
PID 100 wrote to memory of 4116	100	cmd.exe	95
PID 100 wrote to memory of 452	100	cmd.exe	102
PID 100 wrote to memory of 452	100	cmd.exe	102

System policy modification 1 TTPs 6 IoCs

evasion

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	spoolsv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	spoolsv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	spoolsv.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\7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe
"C:\Users\Admin\AppData\Local\Temp\7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.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 Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1648
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\tQfOuHVhCp.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:100
- - C:\Windows\system32\w32tm.exe
    w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
    3⤵
    PID:4116
- - C:\Windows\System32\DiagnosticInvoker\spoolsv.exe
    "C:\Windows\System32\DiagnosticInvoker\spoolsv.exe"
    3⤵
    - UAC bypass
    - Executes dropped EXE
    - Checks whether UAC is enabled
    - Suspicious use of AdjustPrivilegeToken
    - System policy modification
    PID:452

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\Windows\System32\KBDBUG\lsass.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3156

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Windows\System32\kbdlisub\fontdrvhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1812

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Windows\System32\VAN\fontdrvhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4880

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed" /sc ONLOGON /tr "'C:\Users\Admin\AppData\Local\Temp\{40E1AFD1-570C-4984-A508-7F615ABCCB7F} - OProcSessId\7a735fb7f6e21b8f02009613d40272571de48bb6511509326e65f44aec6b19ed.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2956

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SearchApp" /sc ONLOGON /tr "'C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\AppxBlockMap\SearchApp.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1720

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Windows\System32\DiagnosticInvoker\spoolsv.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3884

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "backgroundTaskHost" /sc ONLOGON /tr "'C:\Windows\System32\InprocLogger\backgroundTaskHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4616

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\Idle.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1884

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