dcrat | dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240220-en
resource tags

arch:x64arch:x86image:win10v2004-20240220-enlocale:en-usos:windows10-2004-x64system
submitted
20/02/2024, 18:32

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Size

828KB
MD5

1a06f9c268390c648cffa1fe37572092
SHA1

c4ec47d5b4e306aa42ad99c2119b17a9df196135
SHA256

dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8
SHA512

5ea015d97d479e9e74868559bb5c61c09885c1b4260208ad66dd8b32db92496cfc3ea371f8acd7e64e81f0f4892abdbfab7218a0328249be59fe0a0a586a5fac
SSDEEP

12288:o8+u4g8qLVSMKgddeP+qmLNJFqfAIanKwwjtAcBw:ohFg8qLVSMZeP+qmk+KwwjtHBw

Score

10^/10

dcrat infostealer persistence rat

Malware Config

Signatures

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

Modifies WinLogon for persistence 2 TTPs 10 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:\\Users\\Public\\Videos\\System.exe\", \"C:\\Users\\Default User\\dllhost.exe\", \"C:\\Windows\\GameBarPresenceWriter\\TextInputHost.exe\", \"C:\\Windows\\ServiceProfiles\\NetworkService\\SearchApp.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Users\\Public\\Videos\\System.exe\", \"C:\\Users\\Default User\\dllhost.exe\", \"C:\\Windows\\GameBarPresenceWriter\\TextInputHost.exe\", \"C:\\Windows\\ServiceProfiles\\NetworkService\\SearchApp.exe\", \"C:\\Program Files\\Windows Sidebar\\Gadgets\\smss.exe\", \"C:\\odt\\backgroundTaskHost.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Users\\Public\\Videos\\System.exe\", \"C:\\Users\\Default User\\dllhost.exe\", \"C:\\Windows\\GameBarPresenceWriter\\TextInputHost.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Users\\Public\\Videos\\System.exe\", \"C:\\Users\\Default User\\dllhost.exe\", \"C:\\Windows\\GameBarPresenceWriter\\TextInputHost.exe\", \"C:\\Windows\\ServiceProfiles\\NetworkService\\SearchApp.exe\", \"C:\\Program Files\\Windows Sidebar\\Gadgets\\smss.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Users\\Public\\Videos\\System.exe\", \"C:\\Users\\Default User\\dllhost.exe\", \"C:\\Windows\\GameBarPresenceWriter\\TextInputHost.exe\", \"C:\\Windows\\ServiceProfiles\\NetworkService\\SearchApp.exe\", \"C:\\Program Files\\Windows Sidebar\\Gadgets\\smss.exe\", \"C:\\odt\\backgroundTaskHost.exe\", \"C:\\Program Files\\WindowsPowerShell\\Modules\\Microsoft.PowerShell.Operation.Validation\\sysmon.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Users\\Public\\Videos\\System.exe\", \"C:\\Users\\Default User\\dllhost.exe\", \"C:\\Windows\\GameBarPresenceWriter\\TextInputHost.exe\", \"C:\\Windows\\ServiceProfiles\\NetworkService\\SearchApp.exe\", \"C:\\Program Files\\Windows Sidebar\\Gadgets\\smss.exe\", \"C:\\odt\\backgroundTaskHost.exe\", \"C:\\Program Files\\WindowsPowerShell\\Modules\\Microsoft.PowerShell.Operation.Validation\\sysmon.exe\", \"C:\\Windows\\ModemLogs\\fontdrvhost.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Users\\Public\\Videos\\System.exe\", \"C:\\Users\\Default User\\dllhost.exe\", \"C:\\Windows\\GameBarPresenceWriter\\TextInputHost.exe\", \"C:\\Windows\\ServiceProfiles\\NetworkService\\SearchApp.exe\", \"C:\\Program Files\\Windows Sidebar\\Gadgets\\smss.exe\", \"C:\\odt\\backgroundTaskHost.exe\", \"C:\\Program Files\\WindowsPowerShell\\Modules\\Microsoft.PowerShell.Operation.Validation\\sysmon.exe\", \"C:\\Windows\\ModemLogs\\fontdrvhost.exe\", \"C:\\Program Files (x86)\\WindowsPowerShell\\Configuration\\Schema\\dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Users\\Public\\Videos\\System.exe\", \"C:\\Users\\Default User\\dllhost.exe\", \"C:\\Windows\\GameBarPresenceWriter\\TextInputHost.exe\", \"C:\\Windows\\ServiceProfiles\\NetworkService\\SearchApp.exe\", \"C:\\Program Files\\Windows Sidebar\\Gadgets\\smss.exe\", \"C:\\odt\\backgroundTaskHost.exe\", \"C:\\Program Files\\WindowsPowerShell\\Modules\\Microsoft.PowerShell.Operation.Validation\\sysmon.exe\", \"C:\\Windows\\ModemLogs\\fontdrvhost.exe\", \"C:\\Program Files (x86)\\WindowsPowerShell\\Configuration\\Schema\\dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe\", \"C:\\Program Files\\Internet Explorer\\OfficeClickToRun.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Users\\Public\\Videos\\System.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Users\\Public\\Videos\\System.exe\", \"C:\\Users\\Default User\\dllhost.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe

Process spawned unexpected child process 30 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	2636	2592	schtasks.exe	84
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2032	2592	schtasks.exe	84
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4724	2592	schtasks.exe	84
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2192	2592	schtasks.exe	84
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2952	2592	schtasks.exe	84
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3212	2592	schtasks.exe	84
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3304	2592	schtasks.exe	84
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2416	2592	schtasks.exe	84
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	876	2592	schtasks.exe	84
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	8	2592	schtasks.exe	84
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2028	2592	schtasks.exe	84
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2816	2592	schtasks.exe	84
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3300	2592	schtasks.exe	84
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2968	2592	schtasks.exe	84
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1028	2592	schtasks.exe	84
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4084	2592	schtasks.exe	84
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4268	2592	schtasks.exe	84
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2824	2592	schtasks.exe	84
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1628	2592	schtasks.exe	84
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4848	2592	schtasks.exe	84
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4316	2592	schtasks.exe	84
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4080	2592	schtasks.exe	84
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1780	2592	schtasks.exe	84
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3752	2592	schtasks.exe	84
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4276	2592	schtasks.exe	84
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2420	2592	schtasks.exe	84
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1972	2592	schtasks.exe	84
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3432	2592	schtasks.exe	84
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4540	2592	schtasks.exe	84
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2016	2592	schtasks.exe	84

DCRat payload 2 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
behavioral2/memory/2508-0-0x0000000000370000-0x0000000000446000-memory.dmp	dcrat
behavioral2/files/0x0006000000023200-11.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-1-5-21-2097088205-1470669305-146258644-1000\Control Panel\International\Geo\Nation	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe

Executes dropped EXE 1 IoCs

pid	Process
2868	smss.exe

Adds Run key to start application 2 TTPs 20 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System = "\"C:\\Users\\Public\\Videos\\System.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2097088205-1470669305-146258644-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dllhost = "\"C:\\Users\\Default User\\dllhost.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dllhost = "\"C:\\Users\\Default User\\dllhost.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2097088205-1470669305-146258644-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\backgroundTaskHost = "\"C:\\odt\\backgroundTaskHost.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\backgroundTaskHost = "\"C:\\odt\\backgroundTaskHost.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2097088205-1470669305-146258644-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SearchApp = "\"C:\\Windows\\ServiceProfiles\\NetworkService\\SearchApp.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8 = "\"C:\\Program Files (x86)\\WindowsPowerShell\\Configuration\\Schema\\dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2097088205-1470669305-146258644-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System = "\"C:\\Users\\Public\\Videos\\System.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2097088205-1470669305-146258644-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\TextInputHost = "\"C:\\Windows\\GameBarPresenceWriter\\TextInputHost.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fontdrvhost = "\"C:\\Windows\\ModemLogs\\fontdrvhost.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2097088205-1470669305-146258644-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8 = "\"C:\\Program Files (x86)\\WindowsPowerShell\\Configuration\\Schema\\dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2097088205-1470669305-146258644-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\OfficeClickToRun = "\"C:\\Program Files\\Internet Explorer\\OfficeClickToRun.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\TextInputHost = "\"C:\\Windows\\GameBarPresenceWriter\\TextInputHost.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SearchApp = "\"C:\\Windows\\ServiceProfiles\\NetworkService\\SearchApp.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2097088205-1470669305-146258644-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\smss = "\"C:\\Program Files\\Windows Sidebar\\Gadgets\\smss.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\smss = "\"C:\\Program Files\\Windows Sidebar\\Gadgets\\smss.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2097088205-1470669305-146258644-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sysmon = "\"C:\\Program Files\\WindowsPowerShell\\Modules\\Microsoft.PowerShell.Operation.Validation\\sysmon.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sysmon = "\"C:\\Program Files\\WindowsPowerShell\\Modules\\Microsoft.PowerShell.Operation.Validation\\sysmon.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2097088205-1470669305-146258644-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fontdrvhost = "\"C:\\Windows\\ModemLogs\\fontdrvhost.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\OfficeClickToRun = "\"C:\\Program Files\\Internet Explorer\\OfficeClickToRun.exe\""	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe

Drops file in Program Files directory 8 IoCs

description	ioc	Process
File created	C:\Program Files\Windows Sidebar\Gadgets\smss.exe	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
File created	C:\Program Files\Windows Sidebar\Gadgets\69ddcba757bf72	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
File created	C:\Program Files\WindowsPowerShell\Modules\Microsoft.PowerShell.Operation.Validation\sysmon.exe	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
File created	C:\Program Files\WindowsPowerShell\Modules\Microsoft.PowerShell.Operation.Validation\121e5b5079f7c0	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
File created	C:\Program Files (x86)\WindowsPowerShell\Configuration\Schema\dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
File created	C:\Program Files (x86)\WindowsPowerShell\Configuration\Schema\d31188abdc6d12	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
File created	C:\Program Files\Internet Explorer\OfficeClickToRun.exe	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
File created	C:\Program Files\Internet Explorer\e6c9b481da804f	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe

Drops file in Windows directory 6 IoCs

description	ioc	Process
File created	C:\Windows\GameBarPresenceWriter\22eafd247d37c3	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
File created	C:\Windows\ServiceProfiles\NetworkService\SearchApp.exe	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
File created	C:\Windows\ServiceProfiles\NetworkService\38384e6a620884	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
File created	C:\Windows\ModemLogs\fontdrvhost.exe	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
File created	C:\Windows\ModemLogs\5b884080fd4f94	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
File created	C:\Windows\GameBarPresenceWriter\TextInputHost.exe	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 30 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
2952	schtasks.exe
3304	schtasks.exe
4276	schtasks.exe
2028	schtasks.exe
4080	schtasks.exe
1028	schtasks.exe
4316	schtasks.exe
1780	schtasks.exe
2420	schtasks.exe
4724	schtasks.exe
2968	schtasks.exe
876	schtasks.exe
4084	schtasks.exe
3752	schtasks.exe
3432	schtasks.exe
2636	schtasks.exe
2032	schtasks.exe
4268	schtasks.exe
2824	schtasks.exe
2416	schtasks.exe
8	schtasks.exe
2816	schtasks.exe
4848	schtasks.exe
4540	schtasks.exe
2016	schtasks.exe
2192	schtasks.exe
3212	schtasks.exe
1972	schtasks.exe
3300	schtasks.exe
1628	schtasks.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

pid	Process
2508	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
2508	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
2508	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
2508	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
2508	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
2508	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
2868	smss.exe
2868	smss.exe
2868	smss.exe
2868	smss.exe
2868	smss.exe
2868	smss.exe
2868	smss.exe
2868	smss.exe
2868	smss.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2868	smss.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2508	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
Token: SeDebugPrivilege	2868	smss.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2508 wrote to memory of 2868	2508	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe	118
PID 2508 wrote to memory of 2868	2508	dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe	118

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\dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe
"C:\Users\Admin\AppData\Local\Temp\dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2508
- C:\Program Files\Windows Sidebar\Gadgets\smss.exe
  "C:\Program Files\Windows Sidebar\Gadgets\smss.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:2868

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 10 /tr "'C:\Users\Public\Videos\System.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2636

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Users\Public\Videos\System.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2032

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 14 /tr "'C:\Users\Public\Videos\System.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4724

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 14 /tr "'C:\Users\Default User\dllhost.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2192

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Users\Default User\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2952

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 5 /tr "'C:\Users\Default User\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3212

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "TextInputHostT" /sc MINUTE /mo 12 /tr "'C:\Windows\GameBarPresenceWriter\TextInputHost.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3304

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "TextInputHost" /sc ONLOGON /tr "'C:\Windows\GameBarPresenceWriter\TextInputHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2416

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "TextInputHostT" /sc MINUTE /mo 10 /tr "'C:\Windows\GameBarPresenceWriter\TextInputHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:876

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 5 /tr "'C:\Windows\ServiceProfiles\NetworkService\SearchApp.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:8

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SearchApp" /sc ONLOGON /tr "'C:\Windows\ServiceProfiles\NetworkService\SearchApp.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2028

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 12 /tr "'C:\Windows\ServiceProfiles\NetworkService\SearchApp.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2816

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 9 /tr "'C:\Program Files\Windows Sidebar\Gadgets\smss.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3300

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Program Files\Windows Sidebar\Gadgets\smss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2968

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 10 /tr "'C:\Program Files\Windows Sidebar\Gadgets\smss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1028

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 7 /tr "'C:\odt\backgroundTaskHost.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4084

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "backgroundTaskHost" /sc ONLOGON /tr "'C:\odt\backgroundTaskHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4268

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 9 /tr "'C:\odt\backgroundTaskHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2824

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sysmons" /sc MINUTE /mo 12 /tr "'C:\Program Files\WindowsPowerShell\Modules\Microsoft.PowerShell.Operation.Validation\sysmon.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1628

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sysmon" /sc ONLOGON /tr "'C:\Program Files\WindowsPowerShell\Modules\Microsoft.PowerShell.Operation.Validation\sysmon.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4848

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sysmons" /sc MINUTE /mo 14 /tr "'C:\Program Files\WindowsPowerShell\Modules\Microsoft.PowerShell.Operation.Validation\sysmon.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4316

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 10 /tr "'C:\Windows\ModemLogs\fontdrvhost.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4080

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Windows\ModemLogs\fontdrvhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1780

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 7 /tr "'C:\Windows\ModemLogs\fontdrvhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3752

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8d" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\WindowsPowerShell\Configuration\Schema\dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4276

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8" /sc ONLOGON /tr "'C:\Program Files (x86)\WindowsPowerShell\Configuration\Schema\dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2420

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8d" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\WindowsPowerShell\Configuration\Schema\dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1972

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 6 /tr "'C:\Program Files\Internet Explorer\OfficeClickToRun.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3432

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OfficeClickToRun" /sc ONLOGON /tr "'C:\Program Files\Internet Explorer\OfficeClickToRun.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4540

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 5 /tr "'C:\Program Files\Internet Explorer\OfficeClickToRun.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2016

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Program Files\Windows Sidebar\Gadgets\smss.exe

Filesize
828KB

MD5
1a06f9c268390c648cffa1fe37572092

SHA1
c4ec47d5b4e306aa42ad99c2119b17a9df196135

SHA256
dd74c46dff783c763e1ab8e8aa69dda05e6c463907d40cc2d9f0ae4bc1901bc8

SHA512
5ea015d97d479e9e74868559bb5c61c09885c1b4260208ad66dd8b32db92496cfc3ea371f8acd7e64e81f0f4892abdbfab7218a0328249be59fe0a0a586a5fac

Download Submit
memory/2508-0-0x0000000000370000-0x0000000000446000-memory.dmp

Filesize
856KB

Download
memory/2508-1-0x00007FFAB28B0000-0x00007FFAB3371000-memory.dmp

Filesize
10.8MB

Download
memory/2508-2-0x000000001B2A0000-0x000000001B2B0000-memory.dmp

Filesize
64KB

Download
memory/2508-35-0x00007FFAB28B0000-0x00007FFAB3371000-memory.dmp

Filesize
10.8MB

Download
memory/2868-34-0x00007FFAB28B0000-0x00007FFAB3371000-memory.dmp

Filesize
10.8MB

Download
memory/2868-36-0x00007FFAB28B0000-0x00007FFAB3371000-memory.dmp

Filesize
10.8MB

Download