dcrat | 1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\System32\\perfctrs\\sihost.exe\", \"C:\\Windows\\Performance\\WinSAT\\DataStore\\MusNotification.exe\", \"C:\\Windows\\de-DE\\fontdrvhost.exe\", \"C:\\Users\\Default\\Downloads\\dllhost.exe\", \"C:\\Program Files (x86)\\Common Files\\System\\Ole DB\\it-IT\\SppExtComObj.exe\""	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\System32\\perfctrs\\sihost.exe\", \"C:\\Windows\\Performance\\WinSAT\\DataStore\\MusNotification.exe\", \"C:\\Windows\\de-DE\\fontdrvhost.exe\", \"C:\\Users\\Default\\Downloads\\dllhost.exe\", \"C:\\Program Files (x86)\\Common Files\\System\\Ole DB\\it-IT\\SppExtComObj.exe\", \"C:\\Windows\\SystemApps\\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\\InputApp\\LayoutData\\TextInputHost.exe\", \"C:\\PerfLogs\\MusNotification.exe\", \"C:\\Users\\Public\\AccountPictures\\services.exe\""	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\System32\\perfctrs\\sihost.exe\", \"C:\\Windows\\Performance\\WinSAT\\DataStore\\MusNotification.exe\", \"C:\\Windows\\de-DE\\fontdrvhost.exe\", \"C:\\Users\\Default\\Downloads\\dllhost.exe\", \"C:\\Program Files (x86)\\Common Files\\System\\Ole DB\\it-IT\\SppExtComObj.exe\", \"C:\\Windows\\SystemApps\\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\\InputApp\\LayoutData\\TextInputHost.exe\", \"C:\\PerfLogs\\MusNotification.exe\", \"C:\\Users\\Public\\AccountPictures\\services.exe\", \"C:\\Windows\\System32\\hlink\\lsass.exe\""	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\System32\\perfctrs\\sihost.exe\""	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\System32\\perfctrs\\sihost.exe\", \"C:\\Windows\\Performance\\WinSAT\\DataStore\\MusNotification.exe\", \"C:\\Windows\\de-DE\\fontdrvhost.exe\""	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\System32\\perfctrs\\sihost.exe\", \"C:\\Windows\\Performance\\WinSAT\\DataStore\\MusNotification.exe\", \"C:\\Windows\\de-DE\\fontdrvhost.exe\", \"C:\\Users\\Default\\Downloads\\dllhost.exe\""	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\System32\\perfctrs\\sihost.exe\", \"C:\\Windows\\Performance\\WinSAT\\DataStore\\MusNotification.exe\", \"C:\\Windows\\de-DE\\fontdrvhost.exe\", \"C:\\Users\\Default\\Downloads\\dllhost.exe\", \"C:\\Program Files (x86)\\Common Files\\System\\Ole DB\\it-IT\\SppExtComObj.exe\", \"C:\\Windows\\SystemApps\\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\\InputApp\\LayoutData\\TextInputHost.exe\""	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\System32\\perfctrs\\sihost.exe\", \"C:\\Windows\\Performance\\WinSAT\\DataStore\\MusNotification.exe\", \"C:\\Windows\\de-DE\\fontdrvhost.exe\", \"C:\\Users\\Default\\Downloads\\dllhost.exe\", \"C:\\Program Files (x86)\\Common Files\\System\\Ole DB\\it-IT\\SppExtComObj.exe\", \"C:\\Windows\\SystemApps\\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\\InputApp\\LayoutData\\TextInputHost.exe\", \"C:\\PerfLogs\\MusNotification.exe\""	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\System32\\perfctrs\\sihost.exe\", \"C:\\Windows\\Performance\\WinSAT\\DataStore\\MusNotification.exe\""	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe

Process spawned unexpected child process 9 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	1644	540	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	404	540	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1048	540	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1064	540	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1060	540	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4604	540	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2016	540	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2752	540	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3620	540	schtasks.exe	82

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"	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	dllhost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	dllhost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	dllhost.exe

DCRat payload 6 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
behavioral2/memory/1852-1-0x0000000000DB0000-0x0000000000EA4000-memory.dmp	dcrat
behavioral2/files/0x000a000000023b79-20.dat	dcrat
behavioral2/files/0x000c000000023b6e-64.dat	dcrat
behavioral2/files/0x000d000000023b73-86.dat	dcrat
behavioral2/files/0x000400000001e764-121.dat	dcrat
behavioral2/files/0x000c000000023b7f-132.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe

Executes dropped EXE 1 IoCs

pid	Process
856	dllhost.exe

Adds Run key to start application 2 TTPs 18 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\TextInputHost = "\"C:\\Windows\\SystemApps\\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\\InputApp\\LayoutData\\TextInputHost.exe\""	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\services = "\"C:\\Users\\Public\\AccountPictures\\services.exe\""	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MusNotification = "\"C:\\Windows\\Performance\\WinSAT\\DataStore\\MusNotification.exe\""	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SppExtComObj = "\"C:\\Program Files (x86)\\Common Files\\System\\Ole DB\\it-IT\\SppExtComObj.exe\""	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dllhost = "\"C:\\Users\\Default\\Downloads\\dllhost.exe\""	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dllhost = "\"C:\\Users\\Default\\Downloads\\dllhost.exe\""	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SppExtComObj = "\"C:\\Program Files (x86)\\Common Files\\System\\Ole DB\\it-IT\\SppExtComObj.exe\""	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\TextInputHost = "\"C:\\Windows\\SystemApps\\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\\InputApp\\LayoutData\\TextInputHost.exe\""	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MusNotification = "\"C:\\PerfLogs\\MusNotification.exe\""	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\services = "\"C:\\Users\\Public\\AccountPictures\\services.exe\""	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sihost = "\"C:\\Windows\\System32\\perfctrs\\sihost.exe\""	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fontdrvhost = "\"C:\\Windows\\de-DE\\fontdrvhost.exe\""	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lsass = "\"C:\\Windows\\System32\\hlink\\lsass.exe\""	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fontdrvhost = "\"C:\\Windows\\de-DE\\fontdrvhost.exe\""	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MusNotification = "\"C:\\PerfLogs\\MusNotification.exe\""	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lsass = "\"C:\\Windows\\System32\\hlink\\lsass.exe\""	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sihost = "\"C:\\Windows\\System32\\perfctrs\\sihost.exe\""	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MusNotification = "\"C:\\Windows\\Performance\\WinSAT\\DataStore\\MusNotification.exe\""	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	dllhost.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	dllhost.exe

Drops file in System32 directory 10 IoCs

description	ioc	Process
File created	C:\Windows\System32\hlink\lsass.exe	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
File created	C:\Windows\System32\hlink\6203df4a6bafc7c328ee7f6f8ca0a8a838a8a1b9	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
File opened for modification	C:\Windows\System32\hlink\RCX84A3.tmp	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
File created	C:\Windows\System32\perfctrs\sihost.exe	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
File created	C:\Windows\System32\perfctrs\66fc9ff0ee96c2b21f0cfded48750ae9e3032bf3	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
File opened for modification	C:\Windows\System32\perfctrs\RCX7002.tmp	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
File opened for modification	C:\Windows\System32\perfctrs\RCX7003.tmp	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
File opened for modification	C:\Windows\System32\hlink\RCX8521.tmp	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
File opened for modification	C:\Windows\System32\hlink\lsass.exe	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
File opened for modification	C:\Windows\System32\perfctrs\sihost.exe	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe

Drops file in Program Files directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\System\Ole DB\it-IT\RCX7980.tmp	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
File opened for modification	C:\Program Files (x86)\Common Files\System\Ole DB\it-IT\RCX7B17.tmp	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
File opened for modification	C:\Program Files (x86)\Common Files\System\Ole DB\it-IT\SppExtComObj.exe	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
File created	C:\Program Files (x86)\Common Files\System\Ole DB\it-IT\SppExtComObj.exe	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
File created	C:\Program Files (x86)\Common Files\System\Ole DB\it-IT\e1ef82546f0b02b7e974f28047f3788b1128cce1	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe

Drops file in Windows directory 15 IoCs

description	ioc	Process
File created	C:\Windows\Performance\WinSAT\DataStore\MusNotification.exe	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
File opened for modification	C:\Windows\Performance\WinSAT\DataStore\RCX7284.tmp	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
File opened for modification	C:\Windows\de-DE\fontdrvhost.exe	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
File opened for modification	C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\LayoutData\RCX7D1B.tmp	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
File opened for modification	C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\LayoutData\TextInputHost.exe	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
File opened for modification	C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\LayoutData\RCX7D1C.tmp	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
File created	C:\Windows\de-DE\fontdrvhost.exe	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
File created	C:\Windows\de-DE\5b884080fd4f94e2695da25c503f9e33b9605b83	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
File created	C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\LayoutData\TextInputHost.exe	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
File created	C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\LayoutData\22eafd247d37c30fed3795ee41d259ec72bb351c	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
File opened for modification	C:\Windows\Performance\WinSAT\DataStore\RCX7285.tmp	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
File opened for modification	C:\Windows\de-DE\RCX748A.tmp	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
File opened for modification	C:\Windows\de-DE\RCX74F8.tmp	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
File created	C:\Windows\Performance\WinSAT\DataStore\aa97147c4c782d4a77c6b7822ef5383b917e6cfb	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
File opened for modification	C:\Windows\Performance\WinSAT\DataStore\MusNotification.exe	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.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-1-5-21-3227495264-2217614367-4027411560-1000_Classes\Local Settings	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 9 IoCs

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

persistence execution

Scheduled Task

pid	Process
2016	schtasks.exe
404	schtasks.exe
1048	schtasks.exe
1064	schtasks.exe
1060	schtasks.exe
1644	schtasks.exe
4604	schtasks.exe
2752	schtasks.exe
3620	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1852	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1852	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Token: SeDebugPrivilege	856	dllhost.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1852 wrote to memory of 2588	1852	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe	95
PID 1852 wrote to memory of 2588	1852	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe	95
PID 2588 wrote to memory of 904	2588	cmd.exe	97
PID 2588 wrote to memory of 904	2588	cmd.exe	97
PID 2588 wrote to memory of 856	2588	cmd.exe	99
PID 2588 wrote to memory of 856	2588	cmd.exe	99

System policy modification 1 TTPs 6 IoCs

evasion

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	dllhost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	dllhost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	dllhost.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\1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.exe
"C:\Users\Admin\AppData\Local\Temp\1e1ee51c8a265b2b86b0c6aec30e8ba5c8a1ea69a2d47bbceff7813fc673ed7d.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:1852
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\Pruhi1Hz6v.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2588
- - C:\Windows\system32\w32tm.exe
    w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
    3⤵
    PID:904
- - C:\Users\Default\Downloads\dllhost.exe
    "C:\Users\Default\Downloads\dllhost.exe"
    3⤵
    - UAC bypass
    - Executes dropped EXE
    - Checks whether UAC is enabled
    - Suspicious use of AdjustPrivilegeToken
    - System policy modification
    PID:856

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sihost" /sc ONLOGON /tr "'C:\Windows\System32\perfctrs\sihost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1644

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "MusNotification" /sc ONLOGON /tr "'C:\Windows\Performance\WinSAT\DataStore\MusNotification.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:404

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Windows\de-DE\fontdrvhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1048

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Users\Default\Downloads\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1064

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SppExtComObj" /sc ONLOGON /tr "'C:\Program Files (x86)\Common Files\System\Ole DB\it-IT\SppExtComObj.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1060

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "TextInputHost" /sc ONLOGON /tr "'C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\LayoutData\TextInputHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4604

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "MusNotification" /sc ONLOGON /tr "'C:\PerfLogs\MusNotification.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2016

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Users\Public\AccountPictures\services.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2752

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\Windows\System32\hlink\lsass.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3620

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