dcrat | 8a23e0ccbd2027831ff07599f03b5c1324e080f9415983746de29a6c6ab695fc

Analysis

max time kernel
142s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
28-08-2024 01:57

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General

Target

8a23e0ccbd2027831ff07599f03b5c1324e080f9415983746de29a6c6ab695fc.exe
Size

1.5MB
MD5

31f61e9c68256b4cc089b3703c0e2039
SHA1

5ed8cecacc5e6165d43ee91787f72846d2e8ad01
SHA256

8a23e0ccbd2027831ff07599f03b5c1324e080f9415983746de29a6c6ab695fc
SHA512

ae48468132212e4756864fe7ce22d55c35d53cadd482aebabd62ec9d724ea3786879d9364563613140a43fa6c63a6c5cc1ee1775e4e0e9977aee3b748d8a6df1
SSDEEP

24576:yuDXTIGaPhEYzUzA0bOvbKAO1WMbkiSfLAo9Ffze20S4OIsAMWlXl9h2DvpfsTCu:1Djlabwz9Sv61kiQKvS4OUMI4hfaD

Score

10^/10

dcrat umbral discovery evasion infostealer persistence rat stealer trojan

Malware Config

Signatures

DcRat 37 IoCs

DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

rat infostealer dcrat

description	ioc	pid	Process
		4520	schtasks.exe
		488	schtasks.exe
		4644	schtasks.exe
		4724	schtasks.exe
		3876	schtasks.exe
		3472	schtasks.exe
		1408	schtasks.exe
		3276	schtasks.exe
		4984	schtasks.exe
		4468	schtasks.exe
		2224	schtasks.exe
		1048	schtasks.exe
		1860	schtasks.exe
		4384	schtasks.exe
		744	schtasks.exe
		2436	schtasks.exe
		1280	schtasks.exe
		1524	schtasks.exe
		228	schtasks.exe
		2260	schtasks.exe
		852	schtasks.exe
		4304	schtasks.exe
		3112	schtasks.exe
		540	schtasks.exe
		1096	schtasks.exe
		3300	schtasks.exe
		4052	schtasks.exe
		4560	schtasks.exe
		5112	schtasks.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation		8a23e0ccbd2027831ff07599f03b5c1324e080f9415983746de29a6c6ab695fc.exe
		3664	schtasks.exe
		1416	schtasks.exe
		4896	schtasks.exe
		720	schtasks.exe
		2404	schtasks.exe
		2732	schtasks.exe
		4884	schtasks.exe

Detect Umbral payload 2 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023497-6.dat	family_umbral
behavioral2/memory/4480-19-0x0000019565CD0000-0x0000019565D10000-memory.dmp	family_umbral

Modifies WinLogon for persistence 2 TTPs 12 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Recovery\\WindowsRE\\smss.exe\", \"C:\\providerWinsessionruntimehost\\cmd.exe\", \"C:\\Program Files\\Microsoft Office 15\\ClientX64\\System.exe\", \"C:\\Recovery\\WindowsRE\\unsecapp.exe\", \"C:\\Users\\Default\\fontdrvhost.exe\", \"C:\\Program Files (x86)\\Microsoft\\Edge\\Application\\backgroundTaskHost.exe\", \"C:\\providerWinsessionruntimehost\\csrss.exe\", \"C:\\providerWinsessionruntimehost\\spoolsv.exe\", \"C:\\Program Files (x86)\\Windows Photo Viewer\\uk-UA\\System.exe\", \"C:\\Program Files\\Java\\jdk-1.8\\include\\win32\\StartMenuExperienceHost.exe\", \"C:\\providerWinsessionruntimehost\\sysmon.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Recovery\\WindowsRE\\smss.exe\", \"C:\\providerWinsessionruntimehost\\cmd.exe\", \"C:\\Program Files\\Microsoft Office 15\\ClientX64\\System.exe\", \"C:\\Recovery\\WindowsRE\\unsecapp.exe\", \"C:\\Users\\Default\\fontdrvhost.exe\", \"C:\\Program Files (x86)\\Microsoft\\Edge\\Application\\backgroundTaskHost.exe\", \"C:\\providerWinsessionruntimehost\\csrss.exe\", \"C:\\providerWinsessionruntimehost\\spoolsv.exe\", \"C:\\Program Files (x86)\\Windows Photo Viewer\\uk-UA\\System.exe\", \"C:\\Program Files\\Java\\jdk-1.8\\include\\win32\\StartMenuExperienceHost.exe\", \"C:\\providerWinsessionruntimehost\\sysmon.exe\", \"C:\\providerWinsessionruntimehost\\Registry.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Recovery\\WindowsRE\\smss.exe\", \"C:\\providerWinsessionruntimehost\\cmd.exe\", \"C:\\Program Files\\Microsoft Office 15\\ClientX64\\System.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Recovery\\WindowsRE\\smss.exe\", \"C:\\providerWinsessionruntimehost\\cmd.exe\", \"C:\\Program Files\\Microsoft Office 15\\ClientX64\\System.exe\", \"C:\\Recovery\\WindowsRE\\unsecapp.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Recovery\\WindowsRE\\smss.exe\", \"C:\\providerWinsessionruntimehost\\cmd.exe\", \"C:\\Program Files\\Microsoft Office 15\\ClientX64\\System.exe\", \"C:\\Recovery\\WindowsRE\\unsecapp.exe\", \"C:\\Users\\Default\\fontdrvhost.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Recovery\\WindowsRE\\smss.exe\", \"C:\\providerWinsessionruntimehost\\cmd.exe\", \"C:\\Program Files\\Microsoft Office 15\\ClientX64\\System.exe\", \"C:\\Recovery\\WindowsRE\\unsecapp.exe\", \"C:\\Users\\Default\\fontdrvhost.exe\", \"C:\\Program Files (x86)\\Microsoft\\Edge\\Application\\backgroundTaskHost.exe\", \"C:\\providerWinsessionruntimehost\\csrss.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Recovery\\WindowsRE\\smss.exe\", \"C:\\providerWinsessionruntimehost\\cmd.exe\", \"C:\\Program Files\\Microsoft Office 15\\ClientX64\\System.exe\", \"C:\\Recovery\\WindowsRE\\unsecapp.exe\", \"C:\\Users\\Default\\fontdrvhost.exe\", \"C:\\Program Files (x86)\\Microsoft\\Edge\\Application\\backgroundTaskHost.exe\", \"C:\\providerWinsessionruntimehost\\csrss.exe\", \"C:\\providerWinsessionruntimehost\\spoolsv.exe\", \"C:\\Program Files (x86)\\Windows Photo Viewer\\uk-UA\\System.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Recovery\\WindowsRE\\smss.exe\", \"C:\\providerWinsessionruntimehost\\cmd.exe\", \"C:\\Program Files\\Microsoft Office 15\\ClientX64\\System.exe\", \"C:\\Recovery\\WindowsRE\\unsecapp.exe\", \"C:\\Users\\Default\\fontdrvhost.exe\", \"C:\\Program Files (x86)\\Microsoft\\Edge\\Application\\backgroundTaskHost.exe\", \"C:\\providerWinsessionruntimehost\\csrss.exe\", \"C:\\providerWinsessionruntimehost\\spoolsv.exe\", \"C:\\Program Files (x86)\\Windows Photo Viewer\\uk-UA\\System.exe\", \"C:\\Program Files\\Java\\jdk-1.8\\include\\win32\\StartMenuExperienceHost.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Recovery\\WindowsRE\\smss.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Recovery\\WindowsRE\\smss.exe\", \"C:\\providerWinsessionruntimehost\\cmd.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Recovery\\WindowsRE\\smss.exe\", \"C:\\providerWinsessionruntimehost\\cmd.exe\", \"C:\\Program Files\\Microsoft Office 15\\ClientX64\\System.exe\", \"C:\\Recovery\\WindowsRE\\unsecapp.exe\", \"C:\\Users\\Default\\fontdrvhost.exe\", \"C:\\Program Files (x86)\\Microsoft\\Edge\\Application\\backgroundTaskHost.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Recovery\\WindowsRE\\smss.exe\", \"C:\\providerWinsessionruntimehost\\cmd.exe\", \"C:\\Program Files\\Microsoft Office 15\\ClientX64\\System.exe\", \"C:\\Recovery\\WindowsRE\\unsecapp.exe\", \"C:\\Users\\Default\\fontdrvhost.exe\", \"C:\\Program Files (x86)\\Microsoft\\Edge\\Application\\backgroundTaskHost.exe\", \"C:\\providerWinsessionruntimehost\\csrss.exe\", \"C:\\providerWinsessionruntimehost\\spoolsv.exe\""	Surrogatereviewsession.exe

Process spawned unexpected child process 36 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	1096	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3112	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1408	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1416	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4520	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4884	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3472	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	540	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3276	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3664	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1280	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1860	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	720	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	488	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2732	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1524	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	228	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4644	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4984	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2260	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3300	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4896	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4384	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4468	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4724	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	744	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4052	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3876	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	852	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2404	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2436	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4304	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2224	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4560	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1048	1488	schtasks.exe	96
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5112	1488	schtasks.exe	96

UAC bypass 3 TTPs 6 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

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

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral

DCRat payload 3 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
behavioral2/files/0x000700000002349b-16.dat	dcrat
behavioral2/files/0x000700000002349e-34.dat	dcrat
behavioral2/memory/772-36-0x0000000000170000-0x00000000002B2000-memory.dmp	dcrat

Disables Task Manager via registry modification
evasion

Checks computer location settings 2 TTPs 4 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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	Surrogatereviewsession.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	8a23e0ccbd2027831ff07599f03b5c1324e080f9415983746de29a6c6ab695fc.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	ratgergedrghi.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	WScript.exe

Executes dropped EXE 4 IoCs

pid	Process
4480	stealqqgwrffs.exe
4284	ratgergedrghi.exe
772	Surrogatereviewsession.exe
5020	backgroundTaskHost.exe

Adds Run key to start application 2 TTPs 24 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\backgroundTaskHost = "\"C:\\Program Files (x86)\\Microsoft\\Edge\\Application\\backgroundTaskHost.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\providerWinsessionruntimehost\\csrss.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\StartMenuExperienceHost = "\"C:\\Program Files\\Java\\jdk-1.8\\include\\win32\\StartMenuExperienceHost.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sysmon = "\"C:\\providerWinsessionruntimehost\\sysmon.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cmd = "\"C:\\providerWinsessionruntimehost\\cmd.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cmd = "\"C:\\providerWinsessionruntimehost\\cmd.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System = "\"C:\\Program Files\\Microsoft Office 15\\ClientX64\\System.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System = "\"C:\\Program Files\\Microsoft Office 15\\ClientX64\\System.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System = "\"C:\\Program Files (x86)\\Windows Photo Viewer\\uk-UA\\System.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\unsecapp = "\"C:\\Recovery\\WindowsRE\\unsecapp.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fontdrvhost = "\"C:\\Users\\Default\\fontdrvhost.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\providerWinsessionruntimehost\\csrss.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\spoolsv = "\"C:\\providerWinsessionruntimehost\\spoolsv.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System = "\"C:\\Program Files (x86)\\Windows Photo Viewer\\uk-UA\\System.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\StartMenuExperienceHost = "\"C:\\Program Files\\Java\\jdk-1.8\\include\\win32\\StartMenuExperienceHost.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sysmon = "\"C:\\providerWinsessionruntimehost\\sysmon.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Registry = "\"C:\\providerWinsessionruntimehost\\Registry.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\smss = "\"C:\\Recovery\\WindowsRE\\smss.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\unsecapp = "\"C:\\Recovery\\WindowsRE\\unsecapp.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fontdrvhost = "\"C:\\Users\\Default\\fontdrvhost.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\spoolsv = "\"C:\\providerWinsessionruntimehost\\spoolsv.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\smss = "\"C:\\Recovery\\WindowsRE\\smss.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\backgroundTaskHost = "\"C:\\Program Files (x86)\\Microsoft\\Edge\\Application\\backgroundTaskHost.exe\""	Surrogatereviewsession.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Registry = "\"C:\\providerWinsessionruntimehost\\Registry.exe\""	Surrogatereviewsession.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"	backgroundTaskHost.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Surrogatereviewsession.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Surrogatereviewsession.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	backgroundTaskHost.exe

Drops file in Program Files directory 8 IoCs

description	ioc	Process
File created	C:\Program Files\Java\jdk-1.8\include\win32\StartMenuExperienceHost.exe	Surrogatereviewsession.exe
File created	C:\Program Files\Java\jdk-1.8\include\win32\55b276f4edf653	Surrogatereviewsession.exe
File created	C:\Program Files\Microsoft Office 15\ClientX64\System.exe	Surrogatereviewsession.exe
File created	C:\Program Files\Microsoft Office 15\ClientX64\27d1bcfc3c54e0	Surrogatereviewsession.exe
File created	C:\Program Files (x86)\Microsoft\Edge\Application\backgroundTaskHost.exe	Surrogatereviewsession.exe
File created	C:\Program Files (x86)\Microsoft\Edge\Application\eddb19405b7ce1	Surrogatereviewsession.exe
File created	C:\Program Files (x86)\Windows Photo Viewer\uk-UA\System.exe	Surrogatereviewsession.exe
File created	C:\Program Files (x86)\Windows Photo Viewer\uk-UA\27d1bcfc3c54e0	Surrogatereviewsession.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\CSC\winlogon.exe	Surrogatereviewsession.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ratgergedrghi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000_Classes\Local Settings	Surrogatereviewsession.exe
Key created	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000_Classes\Local Settings	ratgergedrghi.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
2840	reg.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 36 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2732	schtasks.exe
2260	schtasks.exe
4052	schtasks.exe
2404	schtasks.exe
1048	schtasks.exe
2436	schtasks.exe
1096	schtasks.exe
3112	schtasks.exe
488	schtasks.exe
4644	schtasks.exe
4468	schtasks.exe
744	schtasks.exe
3664	schtasks.exe
3300	schtasks.exe
4560	schtasks.exe
4896	schtasks.exe
4724	schtasks.exe
1408	schtasks.exe
1416	schtasks.exe
4884	schtasks.exe
1280	schtasks.exe
1860	schtasks.exe
720	schtasks.exe
3876	schtasks.exe
2224	schtasks.exe
4520	schtasks.exe
540	schtasks.exe
4984	schtasks.exe
4304	schtasks.exe
3472	schtasks.exe
3276	schtasks.exe
228	schtasks.exe
852	schtasks.exe
1524	schtasks.exe
4384	schtasks.exe
5112	schtasks.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
772	Surrogatereviewsession.exe
772	Surrogatereviewsession.exe
772	Surrogatereviewsession.exe
772	Surrogatereviewsession.exe
772	Surrogatereviewsession.exe
772	Surrogatereviewsession.exe
772	Surrogatereviewsession.exe
772	Surrogatereviewsession.exe
772	Surrogatereviewsession.exe
5020	backgroundTaskHost.exe
5020	backgroundTaskHost.exe
5020	backgroundTaskHost.exe
5020	backgroundTaskHost.exe
5020	backgroundTaskHost.exe
5020	backgroundTaskHost.exe
5020	backgroundTaskHost.exe
5020	backgroundTaskHost.exe
5020	backgroundTaskHost.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4480	stealqqgwrffs.exe
Token: SeDebugPrivilege	772	Surrogatereviewsession.exe
Token: SeDebugPrivilege	5020	backgroundTaskHost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4284	ratgergedrghi.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 1932 wrote to memory of 4480	1932	8a23e0ccbd2027831ff07599f03b5c1324e080f9415983746de29a6c6ab695fc.exe	86
PID 1932 wrote to memory of 4480	1932	8a23e0ccbd2027831ff07599f03b5c1324e080f9415983746de29a6c6ab695fc.exe	86
PID 1932 wrote to memory of 4284	1932	8a23e0ccbd2027831ff07599f03b5c1324e080f9415983746de29a6c6ab695fc.exe	88
PID 1932 wrote to memory of 4284	1932	8a23e0ccbd2027831ff07599f03b5c1324e080f9415983746de29a6c6ab695fc.exe	88
PID 1932 wrote to memory of 4284	1932	8a23e0ccbd2027831ff07599f03b5c1324e080f9415983746de29a6c6ab695fc.exe	88
PID 4284 wrote to memory of 2384	4284	ratgergedrghi.exe	90
PID 4284 wrote to memory of 2384	4284	ratgergedrghi.exe	90
PID 4284 wrote to memory of 2384	4284	ratgergedrghi.exe	90
PID 2384 wrote to memory of 2752	2384	WScript.exe	93
PID 2384 wrote to memory of 2752	2384	WScript.exe	93
PID 2384 wrote to memory of 2752	2384	WScript.exe	93
PID 2752 wrote to memory of 772	2752	cmd.exe	95
PID 2752 wrote to memory of 772	2752	cmd.exe	95
PID 772 wrote to memory of 1248	772	Surrogatereviewsession.exe	133
PID 772 wrote to memory of 1248	772	Surrogatereviewsession.exe	133
PID 2752 wrote to memory of 2840	2752	cmd.exe	135
PID 2752 wrote to memory of 2840	2752	cmd.exe	135
PID 2752 wrote to memory of 2840	2752	cmd.exe	135
PID 1248 wrote to memory of 896	1248	cmd.exe	136
PID 1248 wrote to memory of 896	1248	cmd.exe	136
PID 1248 wrote to memory of 5020	1248	cmd.exe	137
PID 1248 wrote to memory of 5020	1248	cmd.exe	137

System policy modification 1 TTPs 6 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Surrogatereviewsession.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	Surrogatereviewsession.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	Surrogatereviewsession.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	backgroundTaskHost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	backgroundTaskHost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	backgroundTaskHost.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\8a23e0ccbd2027831ff07599f03b5c1324e080f9415983746de29a6c6ab695fc.exe
"C:\Users\Admin\AppData\Local\Temp\8a23e0ccbd2027831ff07599f03b5c1324e080f9415983746de29a6c6ab695fc.exe"
1⤵
- DcRat
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1932
- C:\Users\Admin\AppData\Local\Temp\stealqqgwrffs.exe
  "C:\Users\Admin\AppData\Local\Temp\stealqqgwrffs.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:4480
- C:\Users\Admin\AppData\Local\Temp\ratgergedrghi.exe
  "C:\Users\Admin\AppData\Local\Temp\ratgergedrghi.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4284
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\providerWinsessionruntimehost\Xt9KI1krEJFJGvttvIkhdsOgzo3.vbe"
    3⤵
    - Checks computer location settings
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2384
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\providerWinsessionruntimehost\g3CEdDrA4txDO2RaU.bat" "
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2752
    - - C:\providerWinsessionruntimehost\Surrogatereviewsession.exe
        
        "C:\providerWinsessionruntimehost\Surrogatereviewsession.exe"
        5⤵
        Modifies WinLogon for persistence
        UAC bypass
        Checks computer location settings
        Executes dropped EXE
        Adds Run key to start application
        Checks whether UAC is enabled
        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:772
      - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\IJVOgfzU83.bat"
        6⤵
        Suspicious use of WriteProcessMemory
        
        PID:1248
        
        C:\Windows\system32\w32tm.exe
        
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        7⤵
        
        PID:896
        
        C:\Program Files (x86)\Microsoft\Edge\Application\backgroundTaskHost.exe
        
        "C:\Program Files (x86)\Microsoft\Edge\Application\backgroundTaskHost.exe"
        7⤵
        UAC bypass
        Executes dropped EXE
        Checks whether UAC is enabled
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        System policy modification
        
        PID:5020
    - - C:\Windows\SysWOW64\reg.exe
        
        reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
        5⤵
        System Location Discovery: System Language Discovery
        Modifies registry key
        
        PID:2840

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 9 /tr "'C:\Recovery\WindowsRE\smss.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1096

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\smss.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3112

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 9 /tr "'C:\Recovery\WindowsRE\smss.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1408

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 8 /tr "'C:\providerWinsessionruntimehost\cmd.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1416

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "cmd" /sc ONLOGON /tr "'C:\providerWinsessionruntimehost\cmd.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4520

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 9 /tr "'C:\providerWinsessionruntimehost\cmd.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4884

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 13 /tr "'C:\Program Files\Microsoft Office 15\ClientX64\System.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3472

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Program Files\Microsoft Office 15\ClientX64\System.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:540

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 11 /tr "'C:\Program Files\Microsoft Office 15\ClientX64\System.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3276

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "unsecappu" /sc MINUTE /mo 11 /tr "'C:\Recovery\WindowsRE\unsecapp.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3664

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "unsecapp" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\unsecapp.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1280

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "unsecappu" /sc MINUTE /mo 8 /tr "'C:\Recovery\WindowsRE\unsecapp.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1860

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 9 /tr "'C:\Users\Default\fontdrvhost.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:720

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Users\Default\fontdrvhost.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:488

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 11 /tr "'C:\Users\Default\fontdrvhost.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2732

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\Microsoft\Edge\Application\backgroundTaskHost.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1524

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "backgroundTaskHost" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft\Edge\Application\backgroundTaskHost.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:228

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Microsoft\Edge\Application\backgroundTaskHost.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4644

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 9 /tr "'C:\providerWinsessionruntimehost\csrss.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4984

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\providerWinsessionruntimehost\csrss.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2260

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 14 /tr "'C:\providerWinsessionruntimehost\csrss.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3300

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 7 /tr "'C:\providerWinsessionruntimehost\spoolsv.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4896

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\providerWinsessionruntimehost\spoolsv.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4384

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 11 /tr "'C:\providerWinsessionruntimehost\spoolsv.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4468

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Windows Photo Viewer\uk-UA\System.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4724

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Photo Viewer\uk-UA\System.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:744

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Windows Photo Viewer\uk-UA\System.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4052

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "StartMenuExperienceHostS" /sc MINUTE /mo 9 /tr "'C:\Program Files\Java\jdk-1.8\include\win32\StartMenuExperienceHost.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3876

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "StartMenuExperienceHost" /sc ONLOGON /tr "'C:\Program Files\Java\jdk-1.8\include\win32\StartMenuExperienceHost.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:852

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "StartMenuExperienceHostS" /sc MINUTE /mo 8 /tr "'C:\Program Files\Java\jdk-1.8\include\win32\StartMenuExperienceHost.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2404

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sysmons" /sc MINUTE /mo 14 /tr "'C:\providerWinsessionruntimehost\sysmon.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2436

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sysmon" /sc ONLOGON /tr "'C:\providerWinsessionruntimehost\sysmon.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4304

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sysmons" /sc MINUTE /mo 7 /tr "'C:\providerWinsessionruntimehost\sysmon.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2224

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 9 /tr "'C:\providerWinsessionruntimehost\Registry.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4560

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

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 14 /tr "'C:\providerWinsessionruntimehost\Registry.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:5112

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\IJVOgfzU83.bat

Filesize
237B

MD5
4d99d16b977c65c6eb5ab3311f7459ed

SHA1
750b530d376b2706e69c560d1d741916230ffc30

SHA256
a06570ca7fbd14a37f983cf8564e1e50662b088a0369c942b5019a31e8f68837

SHA512
9f4c7bfed615596887d50a02b22c32109facbf5c9339449f1069ef84e2433d1b901eb5b2153f01a00a805e2378ce43d8f24fa5871bea404ce7a7b3d1049cad64

Download Submit
C:\Users\Admin\AppData\Local\Temp\ratgergedrghi.exe

Filesize
1.5MB

MD5
260fd8b292d7acf337beab707e84604c

SHA1
1133c94c57883f8c5624837d51fb88ef220fab06

SHA256
6d7b8c65737968c2ba34d5c64bf2427a49b7b4c74b3d558cf64814c97ba88cfb

SHA512
f83a804b7ac3918bbe76cea264f7451f5682da26b71cfa67e4e66a3281bc6c1ea478db02d16c80b01f7191e157e644fb966c56c9035e800c42d9f3539fa682b1

Download Submit
C:\Users\Admin\AppData\Local\Temp\stealqqgwrffs.exe

Filesize
230KB

MD5
96ee12b0a9e8e1f0b0f85da1b482fdcb

SHA1
28711afb99a8397ebf5a6cb629e3e20465c0fdfa

SHA256
253b05b6848e8a312b0a622d62d370d6dedf59f24fb52fca803234977880649b

SHA512
f9f0012cc0eec4fe176338cc17ea8f870660ea5db8a33cc5000348e3bcdf4067ef7192dc3ecb3b7a5ff271d97085ba1c66eb5e170d24faf3daaee2b504c1e411

Download Submit
C:\providerWinsessionruntimehost\Surrogatereviewsession.exe

Filesize
1.2MB

MD5
6227db1487700389df5e1bd5c29e16b6

SHA1
68795a61f653f7b63fa5e2ebbbe1bc97aed3242f

SHA256
359ede2f634418bc23101b414c0b35139c1dbacd9a6b5ff152f0733c4a9bd3d0

SHA512
2668b4a6d18b3ee6b2961b7eea6c1de669ec8df9b679f2a5fb3041d9f469eba92b4bd1467ea7b8ec7fc1e914a6d6cb008dbbe67bf67cc41b05d1f1979b56eead

Download Submit
C:\providerWinsessionruntimehost\Xt9KI1krEJFJGvttvIkhdsOgzo3.vbe

Filesize
223B

MD5
88ef9c38e649b66c4641665e74fce531

SHA1
1603bd91a66807a8c7095d0cbc64c9d3679e6780

SHA256
65455609bf7611ec4bd6f9fbc08a0835612e15562665349f67ae92b0287243c6

SHA512
a3cd4848553acc3a685b10adf3b801f5ec78e9e706c7e0d6f89425dd7c64f4809dfa5001ee7aec60abeb8e23043608a351bc9ca52b687f6082f4880158465f16

Download Submit
C:\providerWinsessionruntimehost\g3CEdDrA4txDO2RaU.bat

Filesize
173B

MD5
2c8e46086b87c611b970c172dcb48bc1

SHA1
c489d490655a5af55c7a9b33cf69a460093fc1ec

SHA256
c8aaa713c91dfae8607a468ce53adb457685e5b89127ea6a36625058fadc00ab

SHA512
e7e23ae1690897518083cf5a5d2a53ef6c9e9ce8d520deff8d69b091305c0cfcd2a84ebf6ecccc5ef81f9de97b8a70796d243ee7b002b6cd63966bc1f4602377

Download Submit
memory/772-38-0x000000001ADC0000-0x000000001ADDC000-memory.dmp

Filesize
112KB

Download
memory/772-43-0x000000001AE20000-0x000000001AE28000-memory.dmp

Filesize
32KB

Download
memory/772-36-0x0000000000170000-0x00000000002B2000-memory.dmp

Filesize
1.3MB

Download
memory/772-37-0x000000001ADB0000-0x000000001ADBE000-memory.dmp

Filesize
56KB

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memory/772-45-0x000000001AE30000-0x000000001AE3A000-memory.dmp

Filesize
40KB

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memory/772-39-0x000000001AE70000-0x000000001AEC0000-memory.dmp

Filesize
320KB

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memory/772-40-0x000000001ADE0000-0x000000001ADE8000-memory.dmp

Filesize
32KB

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memory/772-41-0x000000001ADF0000-0x000000001ADFA000-memory.dmp

Filesize
40KB

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memory/772-42-0x000000001AE00000-0x000000001AE0C000-memory.dmp

Filesize
48KB

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memory/772-44-0x000000001AE50000-0x000000001AE5C000-memory.dmp

Filesize
48KB

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memory/4480-23-0x00007FF8BD7B0000-0x00007FF8BE271000-memory.dmp

Filesize
10.8MB

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memory/4480-19-0x0000019565CD0000-0x0000019565D10000-memory.dmp

Filesize
256KB

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memory/4480-18-0x00007FF8BD7B3000-0x00007FF8BD7B5000-memory.dmp

Filesize
8KB

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memory/4480-76-0x00007FF8BD7B0000-0x00007FF8BE271000-memory.dmp

Filesize
10.8MB

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