dcrat | e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
27-11-2024 18:55

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General

Target

e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
Size

1.8MB
MD5

382eaedc34bfc15b7e749fb8a0cff600
SHA1

d8729997725a187120ee95e1d6068586a13ab678
SHA256

e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a
SHA512

f2be10566728f10a1396abf3115a01d98a5b06d18b94e84ecb6fbb012f1ad3ad588be84f09ceafa55bc9fd65a7e6763c68ca67596141c750ae54a2bebfc5c16b
SSDEEP

24576:nfNh6iTrBgSq+kdkpupwocpF4jGdWWfWanontd7ksYKtAwqgKchGGqGLk6kIv/D5:f3/kGAwaCYO4ngs7wg8UkcX

Score

10^/10

dcrat discovery execution infostealer persistence rat spyware stealer

Malware Config

Signatures

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

Modifies WinLogon for persistence 2 TTPs 6 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\SoftwareDistribution\\DataStore\\OfficeClickToRun.exe\""	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\SoftwareDistribution\\DataStore\\OfficeClickToRun.exe\", \"C:\\Recovery\\WindowsRE\\Registry.exe\""	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\SoftwareDistribution\\DataStore\\OfficeClickToRun.exe\", \"C:\\Recovery\\WindowsRE\\Registry.exe\", \"C:\\Users\\All Users\\SoftwareDistribution\\sppsvc.exe\""	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\SoftwareDistribution\\DataStore\\OfficeClickToRun.exe\", \"C:\\Recovery\\WindowsRE\\Registry.exe\", \"C:\\Users\\All Users\\SoftwareDistribution\\sppsvc.exe\", \"C:\\Users\\Default\\Start Menu\\taskhostw.exe\""	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\SoftwareDistribution\\DataStore\\OfficeClickToRun.exe\", \"C:\\Recovery\\WindowsRE\\Registry.exe\", \"C:\\Users\\All Users\\SoftwareDistribution\\sppsvc.exe\", \"C:\\Users\\Default\\Start Menu\\taskhostw.exe\", \"C:\\Recovery\\WindowsRE\\Idle.exe\""	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\SoftwareDistribution\\DataStore\\OfficeClickToRun.exe\", \"C:\\Recovery\\WindowsRE\\Registry.exe\", \"C:\\Users\\All Users\\SoftwareDistribution\\sppsvc.exe\", \"C:\\Users\\Default\\Start Menu\\taskhostw.exe\", \"C:\\Recovery\\WindowsRE\\Idle.exe\", \"C:\\Users\\Admin\\AppData\\Local\\Temp\\e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe\""	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe

Process spawned unexpected child process 18 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

schtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exe

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1724	1516	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1548	1516	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	404	1516	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1924	1516	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3696	1516	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3432	1516	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5060	1516	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4828	1516	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4084	1516	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2064	1516	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4036	1516	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3084	1516	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1652	1516	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4044	1516	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3444	1516	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3332	1516	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2644	1516	schtasks.exe	82
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2640	1516	schtasks.exe	82

Command and Scripting Interpreter: PowerShell 1 TTPs 6 IoCs

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

execution

PowerShell

T1059.001

Processes:

powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exe

pid	Process
1332	powershell.exe
3380	powershell.exe
1472	powershell.exe
3168	powershell.exe
3172	powershell.exe
1784	powershell.exe

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

Processes:

e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe

Executes dropped EXE 1 IoCs

Processes:

taskhostw.exe

pid	Process
3384	taskhostw.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 12 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\OfficeClickToRun = "\"C:\\Windows\\SoftwareDistribution\\DataStore\\OfficeClickToRun.exe\""	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\OfficeClickToRun = "\"C:\\Windows\\SoftwareDistribution\\DataStore\\OfficeClickToRun.exe\""	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taskhostw = "\"C:\\Users\\Default\\Start Menu\\taskhostw.exe\""	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Idle = "\"C:\\Recovery\\WindowsRE\\Idle.exe\""	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Idle = "\"C:\\Recovery\\WindowsRE\\Idle.exe\""	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe\""	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe\""	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Registry = "\"C:\\Recovery\\WindowsRE\\Registry.exe\""	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Registry = "\"C:\\Recovery\\WindowsRE\\Registry.exe\""	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sppsvc = "\"C:\\Users\\All Users\\SoftwareDistribution\\sppsvc.exe\""	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sppsvc = "\"C:\\Users\\All Users\\SoftwareDistribution\\sppsvc.exe\""	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taskhostw = "\"C:\\Users\\Default\\Start Menu\\taskhostw.exe\""	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe

Drops file in System32 directory 2 IoCs

Processes:

csc.exe

description	ioc	Process
File created	\??\c:\Windows\System32\CSC2CBF2DA7E0C742F3A5E076DE1439377F.TMP	csc.exe
File created	\??\c:\Windows\System32\s_kgxh.exe	csc.exe

Drops file in Windows directory 3 IoCs

Processes:

e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe

description	ioc	Process
File created	C:\Windows\WaaS\wininit.exe	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
File created	C:\Windows\SoftwareDistribution\DataStore\OfficeClickToRun.exe	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
File created	C:\Windows\SoftwareDistribution\DataStore\e6c9b481da804f	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

Processes:

PING.EXE

pid	Process
1780	PING.EXE

Modifies registry class 1 IoCs

Processes:

e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000_Classes\Local Settings	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

Processes:

PING.EXE

pid	Process
1780	PING.EXE

Scheduled Task/Job: Scheduled Task 1 TTPs 18 IoCs

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

persistence execution

Scheduled Task

T1053.005

Processes:

pid	Process
2640	schtasks.exe
3432	schtasks.exe
2064	schtasks.exe
2644	schtasks.exe
3332	schtasks.exe
404	schtasks.exe
4828	schtasks.exe
4084	schtasks.exe
1652	schtasks.exe
4044	schtasks.exe
1724	schtasks.exe
1924	schtasks.exe
4036	schtasks.exe
3084	schtasks.exe
3444	schtasks.exe
1548	schtasks.exe
3696	schtasks.exe
5060	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exepowershell.exepowershell.exepowershell.exepowershell.exe

pid	Process
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
1472	powershell.exe
3168	powershell.exe
3172	powershell.exe
3380	powershell.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exetaskhostw.exe

description	pid	Process
Token: SeDebugPrivilege	3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
Token: SeDebugPrivilege	1472	powershell.exe
Token: SeDebugPrivilege	3168	powershell.exe
Token: SeDebugPrivilege	3172	powershell.exe
Token: SeDebugPrivilege	3380	powershell.exe
Token: SeDebugPrivilege	1332	powershell.exe
Token: SeDebugPrivilege	1784	powershell.exe
Token: SeDebugPrivilege	3384	taskhostw.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.execsc.execmd.exe

description	pid	Process	procid_target
PID 3896 wrote to memory of 1136	3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe	86
PID 3896 wrote to memory of 1136	3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe	86
PID 1136 wrote to memory of 3612	1136	csc.exe	123
PID 1136 wrote to memory of 3612	1136	csc.exe	123
PID 3896 wrote to memory of 1784	3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe	104
PID 3896 wrote to memory of 1784	3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe	104
PID 3896 wrote to memory of 3172	3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe	105
PID 3896 wrote to memory of 3172	3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe	105
PID 3896 wrote to memory of 3168	3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe	106
PID 3896 wrote to memory of 3168	3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe	106
PID 3896 wrote to memory of 1472	3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe	107
PID 3896 wrote to memory of 1472	3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe	107
PID 3896 wrote to memory of 3380	3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe	108
PID 3896 wrote to memory of 3380	3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe	108
PID 3896 wrote to memory of 1332	3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe	109
PID 3896 wrote to memory of 1332	3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe	109
PID 3896 wrote to memory of 2024	3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe	116
PID 3896 wrote to memory of 2024	3896	e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe	116
PID 2024 wrote to memory of 4592	2024	cmd.exe	118
PID 2024 wrote to memory of 4592	2024	cmd.exe	118
PID 2024 wrote to memory of 1780	2024	cmd.exe	119
PID 2024 wrote to memory of 1780	2024	cmd.exe	119
PID 2024 wrote to memory of 3384	2024	cmd.exe	126
PID 2024 wrote to memory of 3384	2024	cmd.exe	126

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\e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe
"C:\Users\Admin\AppData\Local\Temp\e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3896
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\sby0zsu2\sby0zsu2.cmdline"
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:1136
- - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
    C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES87DD.tmp" "c:\Windows\System32\CSC2CBF2DA7E0C742F3A5E076DE1439377F.TMP"
    3⤵
    PID:3612
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Windows\SoftwareDistribution\DataStore\OfficeClickToRun.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious use of AdjustPrivilegeToken
  PID:1784
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Recovery\WindowsRE\Registry.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3172
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Users\All Users\SoftwareDistribution\sppsvc.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3168
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Users\Default\Start Menu\taskhostw.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1472
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Recovery\WindowsRE\Idle.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3380
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious use of AdjustPrivilegeToken
  PID:1332
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\IGVTgSyov7.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2024
- - C:\Windows\system32\chcp.com
    chcp 65001
    3⤵
    PID:4592
- - C:\Windows\system32\PING.EXE
    ping -n 10 localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:1780
- - C:\Users\Default\Start Menu\taskhostw.exe
    "C:\Users\Default\Start Menu\taskhostw.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:3384

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 11 /tr "'C:\Windows\SoftwareDistribution\DataStore\OfficeClickToRun.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1548

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OfficeClickToRun" /sc ONLOGON /tr "'C:\Windows\SoftwareDistribution\DataStore\OfficeClickToRun.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1724

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 13 /tr "'C:\Windows\SoftwareDistribution\DataStore\OfficeClickToRun.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:404

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 9 /tr "'C:\Recovery\WindowsRE\Registry.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3696

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "Registry" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\Registry.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1924

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 8 /tr "'C:\Recovery\WindowsRE\Registry.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3432

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 12 /tr "'C:\Users\All Users\SoftwareDistribution\sppsvc.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4828

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Users\All Users\SoftwareDistribution\sppsvc.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:5060

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 10 /tr "'C:\Users\All Users\SoftwareDistribution\sppsvc.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1652

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 12 /tr "'C:\Users\Default\Start Menu\taskhostw.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4084

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhostw" /sc ONLOGON /tr "'C:\Users\Default\Start Menu\taskhostw.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3084

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 5 /tr "'C:\Users\Default\Start Menu\taskhostw.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2064

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 9 /tr "'C:\Recovery\WindowsRE\Idle.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4036

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\Idle.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2640

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 14 /tr "'C:\Recovery\WindowsRE\Idle.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4044

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847ae" /sc MINUTE /mo 7 /tr "'C:\Users\Admin\AppData\Local\Temp\e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3444

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a" /sc ONLOGON /tr "'C:\Users\Admin\AppData\Local\Temp\e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.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 "e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847ae" /sc MINUTE /mo 12 /tr "'C:\Users\Admin\AppData\Local\Temp\e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2644

C:\Windows\servicing\TrustedInstaller.exe
C:\Windows\servicing\TrustedInstaller.exe
1⤵
PID:3612

Network

MITRE ATT&CK Enterprise v15

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

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

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
d28a889fd956d5cb3accfbaf1143eb6f

SHA1
157ba54b365341f8ff06707d996b3635da8446f7

SHA256
21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

SHA512
0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
6d3e9c29fe44e90aae6ed30ccf799ca8

SHA1
c7974ef72264bbdf13a2793ccf1aed11bc565dce

SHA256
2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

SHA512
60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

Download Submit
C:\Users\Admin\AppData\Local\Temp\IGVTgSyov7.bat

Filesize
169B

MD5
b7acb5fab6bfda1e54179b826989bd76

SHA1
3e17c1487217328cf64210468fbed54096f2837a

SHA256
dabb4c050862620348fb04788a84f9e525527b851a4039fb0b7e6950db965443

SHA512
6d73a8ffcb4b43e31ca9af13b9580dd1853b9224ba6128ba8539fde6cd2af06b15b5c5f92e0c68a330fdb3c8b4fdbccd68546e00cb3d943fc7412143a37f8716

Download Submit
C:\Users\Admin\AppData\Local\Temp\RES87DD.tmp

Filesize
1KB

MD5
82e0d9c0a2388ad17c57d72453180688

SHA1
dfd5ea7cfc436d24a25921f6ab9df5490425f67e

SHA256
82d0d8c77de764fad710e5ec729b2788aba670d8d12613519a2edef4476d213c

SHA512
a9c96410c6a631179ab17bf9ef84f41935cb6c7186096e779d22d3354eaad670c8df877f2bf1d3af210db29f95f758a1a3f8cc8b10c3e03f7c8f06c32183c603

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_aav1015n.fuq.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Windows\SoftwareDistribution\DataStore\OfficeClickToRun.exe

Filesize
1.8MB

MD5
382eaedc34bfc15b7e749fb8a0cff600

SHA1
d8729997725a187120ee95e1d6068586a13ab678

SHA256
e864306092df6d14c7214c505630f0df5faaa0f622331eec1dc9d3841de2847a

SHA512
f2be10566728f10a1396abf3115a01d98a5b06d18b94e84ecb6fbb012f1ad3ad588be84f09ceafa55bc9fd65a7e6763c68ca67596141c750ae54a2bebfc5c16b

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\sby0zsu2\sby0zsu2.0.cs

Filesize
394B

MD5
99d74e3530e75637dad58a0a4e5854ae

SHA1
bff2c2eaf63ee25d989f8420b74c4b0fb076ac9f

SHA256
dcf0324f582856df35746f3bf37cc411a8f501a8fb279137b4d7d8e22c7dfaba

SHA512
d0e0381ab0f6302d1d33f5e3fc5ea64517c3054024a5bc5ac81307771dbdca39bd3a10520b99d91198e53d4705388cc8483d5ea14ac2642f1d2e8ce8bcf04c69

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\sby0zsu2\sby0zsu2.cmdline

Filesize
235B

MD5
40bf4d72bbeb0fb3706c72197fc25d42

SHA1
ef66fee74845eb94dccaf08ba177cc8b7f9fd985

SHA256
ff538c689dd6a2932ff102b549e05987121c90b5d675c9a1c80eb810b2f462b6

SHA512
9e0804835146a7bd9c94b9cc303a097cf3c602119b66e0e2babd7ceb191c342af87165318d07b2f689ac74eca9133ba442f36f5830722727524cffb740f6c173

Download Submit
\??\c:\Windows\System32\CSC2CBF2DA7E0C742F3A5E076DE1439377F.TMP

Filesize
1KB

MD5
634e281a00b7b9f516c3048badfa1530

SHA1
af6369715ce2fe9b99609e470d4f66698880a35a

SHA256
0d990336ae793f3f6903048004c8d707d7a7191927bd7df46b7fe887116506c8

SHA512
1cb35fa0759f5362c9c7eee5546710874121005a3924bcfec2cf33ac90a257a807ce7ec0db7bc84dcb327604d708009449c34f52560ed936b54eeba49be7d27b

Download Submit
memory/1472-68-0x00000298CA5A0000-0x00000298CA5C2000-memory.dmp

Filesize
136KB

Download
memory/3896-16-0x00007FFB85240000-0x00007FFB85D01000-memory.dmp

Filesize
10.8MB

Download
memory/3896-15-0x0000000002CE0000-0x0000000002CEC000-memory.dmp

Filesize
48KB

Download
memory/3896-17-0x00007FFB85240000-0x00007FFB85D01000-memory.dmp

Filesize
10.8MB

Download
memory/3896-0-0x00007FFB85243000-0x00007FFB85245000-memory.dmp

Filesize
8KB

Download
memory/3896-23-0x00007FFB85240000-0x00007FFB85D01000-memory.dmp

Filesize
10.8MB

Download
memory/3896-30-0x00007FFB85240000-0x00007FFB85D01000-memory.dmp

Filesize
10.8MB

Download
memory/3896-31-0x00007FFB85240000-0x00007FFB85D01000-memory.dmp

Filesize
10.8MB

Download
memory/3896-32-0x00007FFB85240000-0x00007FFB85D01000-memory.dmp

Filesize
10.8MB

Download
memory/3896-13-0x000000001B760000-0x000000001B778000-memory.dmp

Filesize
96KB

Download
memory/3896-9-0x0000000002D20000-0x0000000002D3C000-memory.dmp

Filesize
112KB

Download
memory/3896-7-0x00007FFB85240000-0x00007FFB85D01000-memory.dmp

Filesize
10.8MB

Download
memory/3896-11-0x000000001BB00000-0x000000001BB50000-memory.dmp

Filesize
320KB

Download
memory/3896-6-0x0000000002CD0000-0x0000000002CDE000-memory.dmp

Filesize
56KB

Download
memory/3896-10-0x00007FFB85240000-0x00007FFB85D01000-memory.dmp

Filesize
10.8MB

Download
memory/3896-83-0x00007FFB85240000-0x00007FFB85D01000-memory.dmp

Filesize
10.8MB

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memory/3896-4-0x00007FFB85240000-0x00007FFB85D01000-memory.dmp

Filesize
10.8MB

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memory/3896-3-0x00007FFB85240000-0x00007FFB85D01000-memory.dmp

Filesize
10.8MB

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memory/3896-2-0x00007FFB85240000-0x00007FFB85D01000-memory.dmp

Filesize
10.8MB

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memory/3896-1-0x0000000000920000-0x0000000000AFA000-memory.dmp

Filesize
1.9MB

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