dcrat | a8eb68ed1d443959b4e0b4d66886ce01192d989b0c9016a32d9ab705cb4e8269

Analysis

max time kernel
148s
max time network
125s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
25/10/2026, 12:18

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
a8eb68ed1d443959b4e0b4d66886ce01192d989b0c9016a32d9ab705cb4e8269.exe
Size 1.1MB
Sample261025-pgn5cav13p
SHA256 a8eb68ed1d443959b4e0b4d66886ce01192d989b0c9016a32d9ab705cb4e8269
MD5 25df8c46e6c294d62702eeb6d8a228d8
SHA1 3040a1c5b725855cd5c942a21a7bbb0840af40bb
SHA512 82cbfc88c740a1adb4d80fcb989355c0155a75e90faae0db44579d4a2dfaa8a6cb5d57d466266ffc942bb189c24efd1764ff33e427417be18cd7a1b27d1956e1
SSDEEP 24576:U2G/nvxW3Ww0t7fSykY5JdXYAhbVba6jAkmk30IgYuvm:UbA307fSqJd3r730/+
TLSH
T190454A017E44CA12F0191633C2FF4A044BB4AC51AAA6E72B7EF9376E55123937D1DACB
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery execution dcrat infostealer persistence rat

Malware Config

Signatures

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

DCRat payload 2 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
behavioral2/files/0x000c00000001c639-12.dat	dcrat
behavioral2/memory/4260-14-0x00000000005F0000-0x00000000006C6000-memory.dmp	dcrat

Modifies WinLogon for persistence 2 TTPs 15 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:\\Windows.old\\SearchHost.exe\", \"C:\\Users\\Default\\RuntimeBroker.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows.old\\SearchHost.exe\", \"C:\\Users\\Default\\RuntimeBroker.exe\", \"C:\\Program Files (x86)\\Windows Mail\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\dllhost.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows.old\\SearchHost.exe\", \"C:\\Users\\Default\\RuntimeBroker.exe\", \"C:\\Program Files (x86)\\Windows Mail\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\dllhost.exe\", \"C:\\Users\\Admin\\AppData\\WUDFHost.exe\", \"C:\\Program Files\\dotnet\\shared\\Microsoft.NETCore.App\\8.0.15\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\csrss.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows.old\\SearchHost.exe\", \"C:\\Users\\Default\\RuntimeBroker.exe\", \"C:\\Program Files (x86)\\Windows Mail\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\dllhost.exe\", \"C:\\Users\\Admin\\AppData\\WUDFHost.exe\", \"C:\\Program Files\\dotnet\\shared\\Microsoft.NETCore.App\\8.0.15\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\csrss.exe\", \"C:\\Program Files\\Windows NT\\upfc.exe\", \"C:\\Users\\Public\\Videos\\fontdrvhost.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows.old\\SearchHost.exe\", \"C:\\Users\\Default\\RuntimeBroker.exe\", \"C:\\Program Files (x86)\\Windows Mail\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\dllhost.exe\", \"C:\\Users\\Admin\\AppData\\WUDFHost.exe\", \"C:\\Program Files\\dotnet\\shared\\Microsoft.NETCore.App\\8.0.15\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\csrss.exe\", \"C:\\Program Files\\Windows NT\\upfc.exe\", \"C:\\Users\\Public\\Videos\\fontdrvhost.exe\", \"C:\\WebIntodhcp\\SecurityHealthSystray.exe\", \"C:\\Users\\Default User\\SearchHost.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows.old\\SearchHost.exe\", \"C:\\Users\\Default\\RuntimeBroker.exe\", \"C:\\Program Files (x86)\\Windows Mail\\csrss.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows.old\\SearchHost.exe\", \"C:\\Users\\Default\\RuntimeBroker.exe\", \"C:\\Program Files (x86)\\Windows Mail\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\dllhost.exe\", \"C:\\Users\\Admin\\AppData\\WUDFHost.exe\", \"C:\\Program Files\\dotnet\\shared\\Microsoft.NETCore.App\\8.0.15\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\csrss.exe\", \"C:\\Program Files\\Windows NT\\upfc.exe\", \"C:\\Users\\Public\\Videos\\fontdrvhost.exe\", \"C:\\WebIntodhcp\\SecurityHealthSystray.exe\", \"C:\\Users\\Default User\\SearchHost.exe\", \"C:\\Windows.old\\reviewCrt.exe\", \"C:\\Windows\\Panther\\UnattendGC\\csrss.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows.old\\SearchHost.exe\", \"C:\\Users\\Default\\RuntimeBroker.exe\", \"C:\\Program Files (x86)\\Windows Mail\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\dllhost.exe\", \"C:\\Users\\Admin\\AppData\\WUDFHost.exe\", \"C:\\Program Files\\dotnet\\shared\\Microsoft.NETCore.App\\8.0.15\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\csrss.exe\", \"C:\\Program Files\\Windows NT\\upfc.exe\", \"C:\\Users\\Public\\Videos\\fontdrvhost.exe\", \"C:\\WebIntodhcp\\SecurityHealthSystray.exe\", \"C:\\Users\\Default User\\SearchHost.exe\", \"C:\\Windows.old\\reviewCrt.exe\", \"C:\\Windows\\Panther\\UnattendGC\\csrss.exe\", \"C:\\WebIntodhcp\\Registry.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows.old\\SearchHost.exe\", \"C:\\Users\\Default\\RuntimeBroker.exe\", \"C:\\Program Files (x86)\\Windows Mail\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\dllhost.exe\", \"C:\\Users\\Admin\\AppData\\WUDFHost.exe\", \"C:\\Program Files\\dotnet\\shared\\Microsoft.NETCore.App\\8.0.15\\csrss.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows.old\\SearchHost.exe\", \"C:\\Users\\Default\\RuntimeBroker.exe\", \"C:\\Program Files (x86)\\Windows Mail\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\dllhost.exe\", \"C:\\Users\\Admin\\AppData\\WUDFHost.exe\", \"C:\\Program Files\\dotnet\\shared\\Microsoft.NETCore.App\\8.0.15\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\csrss.exe\", \"C:\\Program Files\\Windows NT\\upfc.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows.old\\SearchHost.exe\", \"C:\\Users\\Default\\RuntimeBroker.exe\", \"C:\\Program Files (x86)\\Windows Mail\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\dllhost.exe\", \"C:\\Users\\Admin\\AppData\\WUDFHost.exe\", \"C:\\Program Files\\dotnet\\shared\\Microsoft.NETCore.App\\8.0.15\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\csrss.exe\", \"C:\\Program Files\\Windows NT\\upfc.exe\", \"C:\\Users\\Public\\Videos\\fontdrvhost.exe\", \"C:\\WebIntodhcp\\SecurityHealthSystray.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows.old\\SearchHost.exe\", \"C:\\Users\\Default\\RuntimeBroker.exe\", \"C:\\Program Files (x86)\\Windows Mail\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\dllhost.exe\", \"C:\\Users\\Admin\\AppData\\WUDFHost.exe\", \"C:\\Program Files\\dotnet\\shared\\Microsoft.NETCore.App\\8.0.15\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\csrss.exe\", \"C:\\Program Files\\Windows NT\\upfc.exe\", \"C:\\Users\\Public\\Videos\\fontdrvhost.exe\", \"C:\\WebIntodhcp\\SecurityHealthSystray.exe\", \"C:\\Users\\Default User\\SearchHost.exe\", \"C:\\Windows.old\\reviewCrt.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows.old\\SearchHost.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows.old\\SearchHost.exe\", \"C:\\Users\\Default\\RuntimeBroker.exe\", \"C:\\Program Files (x86)\\Windows Mail\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\dllhost.exe\", \"C:\\Users\\Admin\\AppData\\WUDFHost.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows.old\\SearchHost.exe\", \"C:\\Users\\Default\\RuntimeBroker.exe\", \"C:\\Program Files (x86)\\Windows Mail\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\dllhost.exe\", \"C:\\Users\\Admin\\AppData\\WUDFHost.exe\", \"C:\\Program Files\\dotnet\\shared\\Microsoft.NETCore.App\\8.0.15\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\csrss.exe\", \"C:\\Program Files\\Windows NT\\upfc.exe\", \"C:\\Users\\Public\\Videos\\fontdrvhost.exe\", \"C:\\WebIntodhcp\\SecurityHealthSystray.exe\", \"C:\\Users\\Default User\\SearchHost.exe\", \"C:\\Windows.old\\reviewCrt.exe\", \"C:\\Windows\\Panther\\UnattendGC\\csrss.exe\", \"C:\\WebIntodhcp\\Registry.exe\", \"C:\\Windows.old\\WUDFHost.exe\""	reviewCrt.exe

Process spawned unexpected child process 45 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	4148	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3736	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1068	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4932	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4392	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5528	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1664	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3116	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1356	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2260	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2144	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5964	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3464	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1188	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	6056	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4584	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5588	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1916	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2508	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2476	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2332	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5392	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5628	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4692	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	784	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3332	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3740	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5468	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5084	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2712	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1500	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4680	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3264	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5696	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1564	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3440	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4860	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1388	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4728	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3620	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5828	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2660	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5404	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2320	4164	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3116	4164	schtasks.exe	94

Executes dropped EXE 17 IoCs

pid	Process
4260	reviewCrt.exe
3320	csrss.exe
2320	WUDFHost.exe
1688	csrss.exe
2356	WUDFHost.exe
844	dllhost.exe
6072	SecurityHealthSystray.exe
6028	SearchHost.exe
2240	upfc.exe
4668	RuntimeBroker.exe
5940	csrss.exe
4868	fontdrvhost.exe
3600	csrss.exe
5356	reviewCrt.exe
4540	SearchHost.exe
1712	Registry.exe
5200	Registry.exe

Adds Run key to start application 2 TTPs 30 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\reviewCrt = "\"C:\\Windows.old\\reviewCrt.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1262770251-41185387-1005173349-1000\Software\Microsoft\Windows\CurrentVersion\Run\dllhost = "\"C:\\Recovery\\WindowsRE\\dllhost.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fontdrvhost = "\"C:\\Users\\Public\\Videos\\fontdrvhost.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SearchHost = "\"C:\\Users\\Default User\\SearchHost.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\Panther\\UnattendGC\\csrss.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1262770251-41185387-1005173349-1000\Software\Microsoft\Windows\CurrentVersion\Run\Registry = "\"C:\\WebIntodhcp\\Registry.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RuntimeBroker = "\"C:\\Users\\Default\\RuntimeBroker.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1262770251-41185387-1005173349-1000\Software\Microsoft\Windows\CurrentVersion\Run\WUDFHost = "\"C:\\Users\\Admin\\AppData\\WUDFHost.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1262770251-41185387-1005173349-1000\Software\Microsoft\Windows\CurrentVersion\Run\SearchHost = "\"C:\\Users\\Default User\\SearchHost.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1262770251-41185387-1005173349-1000\Software\Microsoft\Windows\CurrentVersion\Run\WUDFHost = "\"C:\\Windows.old\\WUDFHost.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Program Files (x86)\\Windows Mail\\csrss.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WUDFHost = "\"C:\\Users\\Admin\\AppData\\WUDFHost.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1262770251-41185387-1005173349-1000\Software\Microsoft\Windows\CurrentVersion\Run\fontdrvhost = "\"C:\\Users\\Public\\Videos\\fontdrvhost.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SearchHost = "\"C:\\Windows.old\\SearchHost.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dllhost = "\"C:\\Recovery\\WindowsRE\\dllhost.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1262770251-41185387-1005173349-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Program Files\\dotnet\\shared\\Microsoft.NETCore.App\\8.0.15\\csrss.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Program Files\\dotnet\\shared\\Microsoft.NETCore.App\\8.0.15\\csrss.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\upfc = "\"C:\\Program Files\\Windows NT\\upfc.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1262770251-41185387-1005173349-1000\Software\Microsoft\Windows\CurrentVersion\Run\SecurityHealthSystray = "\"C:\\WebIntodhcp\\SecurityHealthSystray.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1262770251-41185387-1005173349-1000\Software\Microsoft\Windows\CurrentVersion\Run\reviewCrt = "\"C:\\Windows.old\\reviewCrt.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1262770251-41185387-1005173349-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\Panther\\UnattendGC\\csrss.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1262770251-41185387-1005173349-1000\Software\Microsoft\Windows\CurrentVersion\Run\SearchHost = "\"C:\\Windows.old\\SearchHost.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1262770251-41185387-1005173349-1000\Software\Microsoft\Windows\CurrentVersion\Run\RuntimeBroker = "\"C:\\Users\\Default\\RuntimeBroker.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Recovery\\WindowsRE\\csrss.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1262770251-41185387-1005173349-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Program Files (x86)\\Windows Mail\\csrss.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SecurityHealthSystray = "\"C:\\WebIntodhcp\\SecurityHealthSystray.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WUDFHost = "\"C:\\Windows.old\\WUDFHost.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1262770251-41185387-1005173349-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Recovery\\WindowsRE\\csrss.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1262770251-41185387-1005173349-1000\Software\Microsoft\Windows\CurrentVersion\Run\upfc = "\"C:\\Program Files\\Windows NT\\upfc.exe\""	reviewCrt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Registry = "\"C:\\WebIntodhcp\\Registry.exe\""	reviewCrt.exe

Executes a VBScript file via the Windows Script Host. 1 TTPs 1 IoCs

execution

Visual Basic

T1059.005

pid	Process
2108	WScript.exe

Drops file in Program Files directory 6 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Windows Mail\886983d96e3d3e	reviewCrt.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\csrss.exe	reviewCrt.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\886983d96e3d3e	reviewCrt.exe
File created	C:\Program Files\Windows NT\upfc.exe	reviewCrt.exe
File created	C:\Program Files\Windows NT\ea1d8f6d871115	reviewCrt.exe
File created	C:\Program Files (x86)\Windows Mail\csrss.exe	reviewCrt.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Panther\UnattendGC\csrss.exe	reviewCrt.exe
File created	C:\Windows\Panther\UnattendGC\886983d96e3d3e	reviewCrt.exe

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

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 2 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
2420	cmd.exe
2536	cmd.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	reviewCrt.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	reviewCrt.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	csrss.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	csrss.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	a8eb68ed1d443959b4e0b4d66886ce01192d989b0c9016a32d9ab705cb4e8269.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1262770251-41185387-1005173349-1000_Classes\Local Settings	reviewCrt.exe
Key created	\REGISTRY\USER\S-1-5-21-1262770251-41185387-1005173349-1000_Classes\Local Settings	a8eb68ed1d443959b4e0b4d66886ce01192d989b0c9016a32d9ab705cb4e8269.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 45 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
4932	schtasks.exe
2476	schtasks.exe
5392	schtasks.exe
4692	schtasks.exe
5084	schtasks.exe
4680	schtasks.exe
3116	schtasks.exe
3740	schtasks.exe
4148	schtasks.exe
4392	schtasks.exe
1664	schtasks.exe
3464	schtasks.exe
6056	schtasks.exe
5588	schtasks.exe
4728	schtasks.exe
5528	schtasks.exe
2260	schtasks.exe
2144	schtasks.exe
4584	schtasks.exe
3332	schtasks.exe
2712	schtasks.exe
2660	schtasks.exe
3116	schtasks.exe
1356	schtasks.exe
2332	schtasks.exe
5828	schtasks.exe
2320	schtasks.exe
1068	schtasks.exe
1188	schtasks.exe
5468	schtasks.exe
1500	schtasks.exe
5628	schtasks.exe
1916	schtasks.exe
2508	schtasks.exe
3264	schtasks.exe
3440	schtasks.exe
5404	schtasks.exe
3736	schtasks.exe
5964	schtasks.exe
5696	schtasks.exe
4860	schtasks.exe
1388	schtasks.exe
784	schtasks.exe
1564	schtasks.exe
3620	schtasks.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

pid	Process
4260	reviewCrt.exe
4260	reviewCrt.exe
4260	reviewCrt.exe
4260	reviewCrt.exe
4260	reviewCrt.exe
4260	reviewCrt.exe
4260	reviewCrt.exe
4260	reviewCrt.exe
4260	reviewCrt.exe
4260	reviewCrt.exe
4260	reviewCrt.exe
4260	reviewCrt.exe
4260	reviewCrt.exe
3320	csrss.exe
3320	csrss.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

description	pid	Process
Token: SeDebugPrivilege	4260	reviewCrt.exe
Token: SeDebugPrivilege	3320	csrss.exe
Token: SeDebugPrivilege	2320	WUDFHost.exe
Token: SeDebugPrivilege	1688	csrss.exe
Token: SeDebugPrivilege	2356	WUDFHost.exe
Token: SeDebugPrivilege	844	dllhost.exe
Token: SeDebugPrivilege	6072	SecurityHealthSystray.exe
Token: SeDebugPrivilege	2240	upfc.exe
Token: SeDebugPrivilege	6028	SearchHost.exe
Token: SeDebugPrivilege	4668	RuntimeBroker.exe
Token: SeDebugPrivilege	4868	fontdrvhost.exe
Token: SeDebugPrivilege	5940	csrss.exe
Token: SeDebugPrivilege	3600	csrss.exe
Token: SeDebugPrivilege	5356	reviewCrt.exe
Token: SeDebugPrivilege	4540	SearchHost.exe
Token: SeDebugPrivilege	1712	Registry.exe
Token: SeDebugPrivilege	5200	Registry.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4636 wrote to memory of 2108	4636	a8eb68ed1d443959b4e0b4d66886ce01192d989b0c9016a32d9ab705cb4e8269.exe	90
PID 2108 wrote to memory of 2420	2108	WScript.exe	91
PID 2420 wrote to memory of 4260	2420	cmd.exe	93
PID 4260 wrote to memory of 2536	4260	reviewCrt.exe	171
PID 2536 wrote to memory of 5588	2536	cmd.exe	187
PID 2536 wrote to memory of 5200	2536	cmd.exe	188

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\a8eb68ed1d443959b4e0b4d66886ce01192d989b0c9016a32d9ab705cb4e8269.exe
"C:\Users\Admin\AppData\Local\Temp\a8eb68ed1d443959b4e0b4d66886ce01192d989b0c9016a32d9ab705cb4e8269.exe"
1⤵
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4636
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\WebIntodhcp\jSaqJlIaXrpMVGLICLmiWYm.vbe"
  2⤵
  - Executes a VBScript file via the Windows Script Host.
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2108
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\WebIntodhcp\KNsmy0symRzwjjZVDkmmozpp.bat" "
    3⤵
    - Executes a command shell one-liner
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2420
  - - C:\WebIntodhcp\reviewCrt.exe
      "C:\WebIntodhcp\reviewCrt.exe"
      4⤵
      Modifies WinLogon for persistence
      Executes dropped EXE
      Adds Run key to start application
      Drops file in Program Files directory
      Drops file in Windows directory
      Reads the TCP/IP host and domain name from the registry
      Modifies registry class
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:4260
    - - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\1wPB2XTy58.bat"
        5⤵
        Executes a command shell one-liner
        Suspicious use of WriteProcessMemory
        
        PID:2536
      - C:\Windows\system32\w32tm.exe
        
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        6⤵
        
        PID:5588
      - C:\WebIntodhcp\Registry.exe
        
        "C:\WebIntodhcp\Registry.exe"
        6⤵
        Executes dropped EXE
        Suspicious use of AdjustPrivilegeToken
        
        PID:5200

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SearchHostS" /sc MINUTE /mo 14 /tr "'C:\Windows.old\SearchHost.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4148

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SearchHost" /sc ONLOGON /tr "'C:\Windows.old\SearchHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3736

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SearchHostS" /sc MINUTE /mo 12 /tr "'C:\Windows.old\SearchHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1068

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 11 /tr "'C:\Users\Default\RuntimeBroker.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4932

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Users\Default\RuntimeBroker.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4392

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 13 /tr "'C:\Users\Default\RuntimeBroker.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:5528

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Windows Mail\csrss.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1664

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Mail\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3116

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Windows Mail\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1356

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 6 /tr "'C:\Recovery\WindowsRE\dllhost.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2260

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2144

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 14 /tr "'C:\Recovery\WindowsRE\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:5964

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WUDFHostW" /sc MINUTE /mo 14 /tr "'C:\Users\Admin\AppData\WUDFHost.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3464

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WUDFHost" /sc ONLOGON /tr "'C:\Users\Admin\AppData\WUDFHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1188

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WUDFHostW" /sc MINUTE /mo 12 /tr "'C:\Users\Admin\AppData\WUDFHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:6056

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 8 /tr "'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\csrss.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4584

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:5588

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 13 /tr "'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1916

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 13 /tr "'C:\Recovery\WindowsRE\csrss.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2508

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2476

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 12 /tr "'C:\Recovery\WindowsRE\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2332

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "upfcu" /sc MINUTE /mo 8 /tr "'C:\Program Files\Windows NT\upfc.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:5392

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "upfc" /sc ONLOGON /tr "'C:\Program Files\Windows NT\upfc.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:5628

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "upfcu" /sc MINUTE /mo 10 /tr "'C:\Program Files\Windows NT\upfc.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4692

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 14 /tr "'C:\Users\Public\Videos\fontdrvhost.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:784

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Users\Public\Videos\fontdrvhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3332

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 9 /tr "'C:\Users\Public\Videos\fontdrvhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3740

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SecurityHealthSystrayS" /sc MINUTE /mo 5 /tr "'C:\WebIntodhcp\SecurityHealthSystray.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:5468

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SecurityHealthSystray" /sc ONLOGON /tr "'C:\WebIntodhcp\SecurityHealthSystray.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:5084

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SecurityHealthSystrayS" /sc MINUTE /mo 10 /tr "'C:\WebIntodhcp\SecurityHealthSystray.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2712

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SearchHostS" /sc MINUTE /mo 6 /tr "'C:\Users\Default User\SearchHost.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1500

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SearchHost" /sc ONLOGON /tr "'C:\Users\Default User\SearchHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4680

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SearchHostS" /sc MINUTE /mo 14 /tr "'C:\Users\Default User\SearchHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3264

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "reviewCrtr" /sc MINUTE /mo 7 /tr "'C:\Windows.old\reviewCrt.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:5696

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "reviewCrt" /sc ONLOGON /tr "'C:\Windows.old\reviewCrt.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1564

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "reviewCrtr" /sc MINUTE /mo 5 /tr "'C:\Windows.old\reviewCrt.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3440

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 14 /tr "'C:\Windows\Panther\UnattendGC\csrss.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4860

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Windows\Panther\UnattendGC\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1388

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 7 /tr "'C:\Windows\Panther\UnattendGC\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4728

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 9 /tr "'C:\WebIntodhcp\Registry.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3620

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "Registry" /sc ONLOGON /tr "'C:\WebIntodhcp\Registry.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:5828

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 6 /tr "'C:\WebIntodhcp\Registry.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2660

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WUDFHostW" /sc MINUTE /mo 11 /tr "'C:\Windows.old\WUDFHost.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:5404

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WUDFHost" /sc ONLOGON /tr "'C:\Windows.old\WUDFHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2320

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WUDFHostW" /sc MINUTE /mo 12 /tr "'C:\Windows.old\WUDFHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3116

C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\csrss.exe
"C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\csrss.exe"
1⤵
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3320

C:\Users\Admin\AppData\WUDFHost.exe
"C:\Users\Admin\AppData\WUDFHost.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2320

C:\Windows\Panther\UnattendGC\csrss.exe
"C:\Windows\Panther\UnattendGC\csrss.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1688

C:\Windows.old\WUDFHost.exe
"C:\Windows.old\WUDFHost.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2356

C:\Recovery\WindowsRE\dllhost.exe
"C:\Recovery\WindowsRE\dllhost.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:844

C:\WebIntodhcp\SecurityHealthSystray.exe
"C:\WebIntodhcp\SecurityHealthSystray.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:6072

C:\Users\Default User\SearchHost.exe
"C:\Users\Default User\SearchHost.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:6028

C:\Users\Default\RuntimeBroker.exe
"C:\Users\Default\RuntimeBroker.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4668

C:\Program Files\Windows NT\upfc.exe
"C:\Program Files\Windows NT\upfc.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2240

C:\Program Files (x86)\Windows Mail\csrss.exe
"C:\Program Files (x86)\Windows Mail\csrss.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:5940

C:\Users\Public\Videos\fontdrvhost.exe
"C:\Users\Public\Videos\fontdrvhost.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4868

C:\Recovery\WindowsRE\csrss.exe
"C:\Recovery\WindowsRE\csrss.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3600

C:\Windows.old\SearchHost.exe
"C:\Windows.old\SearchHost.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4540

C:\Windows.old\reviewCrt.exe
"C:\Windows.old\reviewCrt.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:5356

C:\WebIntodhcp\Registry.exe
"C:\WebIntodhcp\Registry.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1712

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Visual Basic

T1059.005

Windows Command Shell

T1059.003

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

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

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

1wPB2XTy58.bat

Path C:\Users\Admin\AppData\Local\Temp\1wPB2XTy58.bat
Size 192B
SHA256 bdb8bb828d3bf7c0054f2624072f4d764aa3120abf947bbd4ad61d359642c255
MD5 81efa0b9e48f0867d835c179249d9731
SHA1 49307b54afb8ffe5e280d5d16014c915efa9cef9
SHA512 33bc31e50747eedfa7e068a3eb92efd28342c46a6d4779dcb3f0034312ffac7651219f1bde2f1e74957f0b407899084cbd1fcf8ceb9ffbf117720126db02da1f
TLSH
T1BEC0C003E100C71B069709631C4B02CD60171C8CBAC0AD3007960C74364B4BFB55EDC2
MD5 SHA1 SHA512 TLSH

Submit Download

KNsmy0symRzwjjZVDkmmozpp.bat

Path C:\WebIntodhcp\KNsmy0symRzwjjZVDkmmozpp.bat
Size 30B
SHA256 1370b3a33f1435fb5f3ed30af0fad28a43bdfb118d7421665159bf5bef2f5b67
MD5 a850c98b7b2a14733e90170846b8d822
SHA1 50e1fd52486af4d825670e021ce6c7c99d3aa5e0
SHA512 d2c0bfe9a16dc1f0515542c15eed16e594687f6a45c600f72a5c25c5d8470b5d2a8279a733dfe8e6eb4999c42deac9166db388476470411a6bb332e7824a643c
MD5 SHA1 SHA512

Submit Download

jSaqJlIaXrpMVGLICLmiWYm.vbe

Path C:\WebIntodhcp\jSaqJlIaXrpMVGLICLmiWYm.vbe
Size 212B
SHA256 fcbd8b5581973e218ec2a91acf4c10d6e87e3f411aedafd0af5ec99484ec3494
MD5 6b88ebe367445da7c498753320708d93
SHA1 a8c964ee6a0db5d46d1e345b52288e5afbfc3a94
SHA512 112c66944ddb70452a32ad08cc8ec9f562d9baedeea058a40937e0e90504bf756880f8eb03af09678493db1944680dedb08129148e7853e88b31ca1e59a9e57f
TLSH
T12AD0230851B773C4DD5894E29644D03D1D60BF59474107C9C854D555194076B317C766
MD5 SHA1 SHA512 TLSH

Submit Download

reviewCrt.exe

Path C:\WebIntodhcp\reviewCrt.exe
Size 828KB
SHA256 64591acd1630d6145609c92fdd030aaef789fbb8f28e7a4b78fc51cd191536e5
MD5 832739a48ba689eb90ddd06d51e82134
SHA1 8f79db430702a91c0a00f1b072179029a2272f9f
SHA512 9c1d6417c051ae2ae432c4b562d618766c3e9ecf2172bd6c0fb16bf01abb392a6480a5c66e20d14833083be5f4c15365e972bf3024296d6e140f147572630de9
SSDEEP 12288:y3Gb0SykYmjuJdXYAf5bVba9I3jAH6ZlYG3n30Oa66jYJ5Wv:yfSykY5JdXYAhbVba6jAkmk30IgYuv
TLSH
T17805F7067E44CE12F0191633C2FF4A484BB09951A6A6E32BBDFA376E55123977C0D9CB
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4260-14-0x00000000005F0000-0x00000000006C6000-memory.dmp

Download