dcrat | 515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005

Analysis

max time kernel
66s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
25/05/2026, 09:36

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Report Analysis Logs

General

Target
x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
Size 1.7MB
Sample260525-lkwf2sf14v
SHA256 515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005
MD5 0adbbd5ac2783176e3c4fc135cfab5f6
SHA1 f12f52c24b645510dc914a0c46e81a9af76fd60f
SHA512 e589a427ebfbc09c1ca941c7e8c3887195c2ba52ee224bbd016d7c538fdf450d49cf9e5e3c76c3b3086c333aaa21bf32868e4f27279b4e6e2f7c4a3c0fe625e8
SSDEEP 49152:8kQTAPIwMtuvMDVPG4JdXeR4aT6LQ+d3mY/4qxTsx3sc9:8aluRD9JdOR4m+lmY/4rx8c9
TLSH
T1BE8523097181D333C2FB003085C58FB55A2566224F7566EFFBE89B662F202F4BB661C9
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

defense_evasion discovery execution dcrat infostealer persistence rat trojan

Malware Config

Signatures

Family: 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 5 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\InputMethod\\CHT\\dllhost.exe\""	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\InputMethod\\CHT\\dllhost.exe\", \"C:\\Users\\Default User\\sppsvc.exe\""	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\InputMethod\\CHT\\dllhost.exe\", \"C:\\Users\\Default User\\sppsvc.exe\", \"C:\\Users\\Public\\AccountPictures\\dllhost.exe\""	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\InputMethod\\CHT\\dllhost.exe\", \"C:\\Users\\Default User\\sppsvc.exe\", \"C:\\Users\\Public\\AccountPictures\\dllhost.exe\", \"C:\\Recovery\\WindowsRE\\services.exe\""	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\InputMethod\\CHT\\dllhost.exe\", \"C:\\Users\\Default User\\sppsvc.exe\", \"C:\\Users\\Public\\AccountPictures\\dllhost.exe\", \"C:\\Recovery\\WindowsRE\\services.exe\", \"C:\\Recovery\\WindowsRE\\sihost.exe\""	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe

Process spawned unexpected child process 15 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	6080	1816	schtasks.exe	80
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4652	1816	schtasks.exe	80
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4904	1816	schtasks.exe	80
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	580	1816	schtasks.exe	80
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5512	1816	schtasks.exe	80
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3776	1816	schtasks.exe	80
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4772	1816	schtasks.exe	80
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2552	1816	schtasks.exe	80
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1504	1816	schtasks.exe	80
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4348	1816	schtasks.exe	80
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4828	1816	schtasks.exe	80
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4644	1816	schtasks.exe	80
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3936	1816	schtasks.exe	80
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4512	1816	schtasks.exe	80
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4628	1816	schtasks.exe	80

UAC bypass 3 TTPs 3 IoCs

defense_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"	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 11 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
6036	powershell.exe
5788	powershell.exe
1752	powershell.exe
652	powershell.exe
4992	powershell.exe
660	powershell.exe
2920	powershell.exe
4980	powershell.exe
768	powershell.exe
2232	powershell.exe
1868	powershell.exe

Executes dropped EXE 6 IoCs

pid	Process
4352	dllhost.exe
4752	dllhost.exe
848	services.exe
3032	sihost.exe
4528	sppsvc.exe
3796	dllhost.exe

Adds Run key to start application 2 TTPs 10 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\sihost = "\"C:\\Recovery\\WindowsRE\\sihost.exe\""	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2746394149-3500112804-1243524366-1000\Software\Microsoft\Windows\CurrentVersion\Run\dllhost = "\"C:\\Windows\\InputMethod\\CHT\\dllhost.exe\""	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\dllhost = "\"C:\\Windows\\InputMethod\\CHT\\dllhost.exe\""	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2746394149-3500112804-1243524366-1000\Software\Microsoft\Windows\CurrentVersion\Run\sppsvc = "\"C:\\Users\\Default User\\sppsvc.exe\""	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\sppsvc = "\"C:\\Users\\Default User\\sppsvc.exe\""	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2746394149-3500112804-1243524366-1000\Software\Microsoft\Windows\CurrentVersion\Run\dllhost = "\"C:\\Users\\Public\\AccountPictures\\dllhost.exe\""	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\dllhost = "\"C:\\Users\\Public\\AccountPictures\\dllhost.exe\""	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2746394149-3500112804-1243524366-1000\Software\Microsoft\Windows\CurrentVersion\Run\services = "\"C:\\Recovery\\WindowsRE\\services.exe\""	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\services = "\"C:\\Recovery\\WindowsRE\\services.exe\""	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2746394149-3500112804-1243524366-1000\Software\Microsoft\Windows\CurrentVersion\Run\sihost = "\"C:\\Recovery\\WindowsRE\\sihost.exe\""	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

defense_evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe

SmartAssembly .NET packer 6 IoCs

Detects SmartAssembly .NET packer.

resource	yara_rule
behavioral2/memory/2416-5232-0x0000000006290000-0x00000000062A0000-memory.dmp	SmartAssembly
behavioral2/memory/2416-5236-0x00000000067E0000-0x00000000067EA000-memory.dmp	SmartAssembly
behavioral2/memory/2416-5241-0x00000000068C0000-0x00000000068CC000-memory.dmp	SmartAssembly
behavioral2/memory/2416-5242-0x0000000006910000-0x000000000691A000-memory.dmp	SmartAssembly
behavioral2/memory/2416-5244-0x00000000071F0000-0x00000000071FC000-memory.dmp	SmartAssembly
behavioral2/memory/2416-5247-0x00000000051B0000-0x00000000051C0000-memory.dmp	SmartAssembly

Drops file in Windows directory 5 IoCs

description	ioc	Process
File created	C:\Windows\InputMethod\CHT\dllhost.exe	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
File opened for modification	C:\Windows\InputMethod\CHT\dllhost.exe	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
File created	C:\Windows\InputMethod\CHT\5940a34987c991	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
File opened for modification	C:\Windows\InputMethod\CHT\RCX8412.tmp	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
File opened for modification	C:\Windows\InputMethod\CHT\RCX8413.tmp	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.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 18 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	dllhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dllhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	services.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sihost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sppsvc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dllhost.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 15 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
6080	schtasks.exe
4652	schtasks.exe
4644	schtasks.exe
4772	schtasks.exe
4628	schtasks.exe
4904	schtasks.exe
5512	schtasks.exe
2552	schtasks.exe
1504	schtasks.exe
4348	schtasks.exe
580	schtasks.exe
3776	schtasks.exe
4828	schtasks.exe
3936	schtasks.exe
4512	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
4980	powershell.exe
4980	powershell.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
768	powershell.exe
768	powershell.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
1868	powershell.exe
1868	powershell.exe
2232	powershell.exe
2232	powershell.exe
6036	powershell.exe
6036	powershell.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
660	powershell.exe
660	powershell.exe
2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

description	pid	Process
Token: SeDebugPrivilege	2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
Token: SeDebugPrivilege	4752	dllhost.exe
Token: SeDebugPrivilege	848	services.exe
Token: SeDebugPrivilege	4980	powershell.exe
Token: SeDebugPrivilege	768	powershell.exe
Token: SeDebugPrivilege	1868	powershell.exe
Token: SeDebugPrivilege	2232	powershell.exe
Token: SeDebugPrivilege	6036	powershell.exe
Token: SeDebugPrivilege	660	powershell.exe
Token: SeDebugPrivilege	5788	powershell.exe
Token: SeDebugPrivilege	1752	powershell.exe
Token: SeDebugPrivilege	4992	powershell.exe
Token: SeDebugPrivilege	652	powershell.exe
Token: SeDebugPrivilege	2920	powershell.exe
Token: SeDebugPrivilege	3032	sihost.exe
Token: SeDebugPrivilege	4528	sppsvc.exe
Token: SeDebugPrivilege	3796	dllhost.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2416 wrote to memory of 5788	2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe	109
PID 2416 wrote to memory of 6036	2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe	110
PID 2416 wrote to memory of 2920	2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe	111
PID 2416 wrote to memory of 1868	2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe	112
PID 2416 wrote to memory of 660	2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe	113
PID 2416 wrote to memory of 4992	2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe	114
PID 2416 wrote to memory of 652	2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe	115
PID 2416 wrote to memory of 2232	2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe	116
PID 2416 wrote to memory of 768	2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe	117
PID 2416 wrote to memory of 4980	2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe	118
PID 2416 wrote to memory of 1752	2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe	119
PID 2416 wrote to memory of 3796	2416	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe	133

System policy modification 1 TTPs 3 IoCs

defense_evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.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\x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe
"C:\Users\Admin\AppData\Local\Temp\x515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005.exe"
1⤵
- Modifies WinLogon for persistence
- UAC bypass
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2416
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell" -Command Add-MpPreference -ExclusionPath 'C:/'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:5788
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell" -Command Add-MpPreference -ExclusionPath 'C:/$Recycle.Bin/'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:6036
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Documents and Settings/'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2920
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell" -Command Add-MpPreference -ExclusionPath 'C:/PerfLogs/'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1868
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Program Files/'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:660
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Program Files (x86)/'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4992
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell" -Command Add-MpPreference -ExclusionPath 'C:/ProgramData/'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:652
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Recovery/'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2232
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell" -Command Add-MpPreference -ExclusionPath 'C:/System Volume Information/'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:768
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Users/'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4980
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell" -Command Add-MpPreference -ExclusionPath 'C:/Windows/'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1752
- C:\Users\Public\AccountPictures\dllhost.exe
  "C:\Users\Public\AccountPictures\dllhost.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:3796

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 10 /tr "'C:\Windows\InputMethod\CHT\dllhost.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:6080

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Windows\InputMethod\CHT\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4652

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 6 /tr "'C:\Windows\InputMethod\CHT\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4904

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 7 /tr "'C:\Users\Default User\sppsvc.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:580

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Users\Default User\sppsvc.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:5512

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 7 /tr "'C:\Users\Default User\sppsvc.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3776

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 14 /tr "'C:\Users\Public\AccountPictures\dllhost.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4772

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Users\Public\AccountPictures\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2552

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 13 /tr "'C:\Users\Public\AccountPictures\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1504

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "servicess" /sc MINUTE /mo 5 /tr "'C:\Recovery\WindowsRE\services.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4348

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\services.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4828

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "servicess" /sc MINUTE /mo 9 /tr "'C:\Recovery\WindowsRE\services.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4644

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sihosts" /sc MINUTE /mo 10 /tr "'C:\Recovery\WindowsRE\sihost.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3936

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sihost" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\sihost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4512

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sihosts" /sc MINUTE /mo 10 /tr "'C:\Recovery\WindowsRE\sihost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4628

C:\Users\Public\AccountPictures\dllhost.exe
"C:\Users\Public\AccountPictures\dllhost.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4352

C:\Windows\InputMethod\CHT\dllhost.exe
"C:\Windows\InputMethod\CHT\dllhost.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4752
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\30c6ce61-eb98-46d3-84c6-cb89fab2b55b.vbs"
  2⤵
  PID:6864
- - C:\Windows\InputMethod\CHT\dllhost.exe
    C:\Windows\InputMethod\CHT\dllhost.exe
    3⤵
    PID:6256
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\b92de1fb-986d-4e25-9d33-681b6c0a2d78.vbs"
  2⤵
  PID:7016

C:\Recovery\WindowsRE\services.exe
"C:\Recovery\WindowsRE\services.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:848

C:\Recovery\WindowsRE\sihost.exe
"C:\Recovery\WindowsRE\sihost.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3032

C:\Users\Default User\sppsvc.exe
"C:\Users\Default User\sppsvc.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4528

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

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

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Downloads

sihost.exe

Path C:\Recovery\WindowsRE\sihost.exe
Size 1.7MB
SHA256 515b51193dcb5776e84a283cb173f6075efa75e60741392c2b98f3ff8c7b5005
MD5 0adbbd5ac2783176e3c4fc135cfab5f6
SHA1 f12f52c24b645510dc914a0c46e81a9af76fd60f
SHA512 e589a427ebfbc09c1ca941c7e8c3887195c2ba52ee224bbd016d7c538fdf450d49cf9e5e3c76c3b3086c333aaa21bf32868e4f27279b4e6e2f7c4a3c0fe625e8
SSDEEP 49152:8kQTAPIwMtuvMDVPG4JdXeR4aT6LQ+d3mY/4qxTsx3sc9:8aluRD9JdOR4m+lmY/4rx8c9
TLSH
T1BE8523097181D333C2FB003085C58FB55A2566224F7566EFFBE89B662F202F4BB661C9
MD5 SHA1 SHA512 SSDEEP TLSH

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powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Size 2KB
SHA256 e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
MD5 ac4917a885cf6050b1a483e4bc4d2ea5
SHA1 b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA512 092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
TLSH
T10B415C303161A5D84D435B1205286ED5E3EF478AAFAC8F5CB569231DCD2A44BD7121F3
MD5 SHA1 SHA512 TLSH

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ModuleAnalysisCache

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache
Size 60KB
SHA256 ff092cf8a509c8de094f8ef31b14e53875e9d15fcefe0cdc5ccbe2da3f0c9cd9
MD5 1585f934879bc8656c9476cfd42b4657
SHA1 6b93b36eeb6858998e8739b8e7c6c9b167149231
SHA512 779d425776e2ea8e1ff7ebd4f8a1cf8f3575f11ec9fda8241d8d2b2755c04dab84d22c76b47fa125201ef9119e0c522e02c63b5c9822006bb6a2dbe4bc15c957
SSDEEP 1536:0flJdvh4iUxTYkXv2/fKQwUpeE711kDa5z+jH0M8YoVfV3CNBQkj2zMrxjtAHkda:0flJdvqiUTYkXv2/fKQwUpeE711kDa5v
TLSH
T11F539492E9204E75E2A66F3EF15621227C34394690F8113212DC25EFA987D970B1F7FE
MD5 SHA1 SHA512 SSDEEP TLSH

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