xworm | 23e94cfcb91cceb17c610e0b8c1591f4d3a3eebffbe8b396a6d24f3a19885f9e

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
21-05-2024 09:21

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General

Target

wzcsapi32.exe
Size

145KB
MD5

c7e64d8e67fe34c0a61422e2a613e481
SHA1

ad51f58b2fbc8f0d911d1e065cb9c5431c4f3ab7
SHA256

23e94cfcb91cceb17c610e0b8c1591f4d3a3eebffbe8b396a6d24f3a19885f9e
SHA512

14b521b6aa6a9b12ff04f505030324f2f7ad8888867f91aea5f479a0b9b4510ddbc30c8a3f4aafbf48d7648b3523057f2933dd11cbe4915c871988a1889d3f1d
SSDEEP

3072:XrRyKq4c+SrwKZkebDUj9LPKDFKz2K49y9kTBshGX3L9:Ve4cTwMkHj9DK849y9kmcX

Score

10^/10

xworm bootkit persistence rat trojan

Malware Config

Extracted

Family

xworm

Mutex

SOAMMF寬MFSENSF

Attributes

Install_directory
%Port%
install_file
WZd.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4780-386-0x000000001C150000-0x000000001C15E000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

WaaSMedicAgent.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\DoSvc\ImagePath = "C:\\Windows\\System32\\svchost.exe -k NetworkService -p"	WaaSMedicAgent.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

wmiprvse.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	wmiprvse.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	wmiprvse.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

wzcsapi32.exewzctool.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	wzcsapi32.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	wzctool.exe

Executes dropped EXE 2 IoCs

Processes:

wzcsvc.exewzctool.exe

pid process

2592 wzcsvc.exe
4780 wzctool.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
File opened (read-only)	\??\B:	svchost.exe
File opened (read-only)	\??\N:	svchost.exe
File opened (read-only)	\??\Q:	svchost.exe
File opened (read-only)	\??\S:	svchost.exe
File opened (read-only)	\??\Y:	svchost.exe
File opened (read-only)	\??\X:	svchost.exe
File opened (read-only)	\??\Z:	svchost.exe
File opened (read-only)	\??\J:	svchost.exe
File opened (read-only)	\??\M:	svchost.exe
File opened (read-only)	\??\P:	svchost.exe
File opened (read-only)	\??\U:	svchost.exe
File opened (read-only)	\??\V:	svchost.exe
File opened (read-only)	\??\O:	svchost.exe
File opened (read-only)	\??\R:	svchost.exe
File opened (read-only)	\??\A:	svchost.exe
File opened (read-only)	\??\E:	svchost.exe
File opened (read-only)	\??\H:	svchost.exe
File opened (read-only)	\??\I:	svchost.exe
File opened (read-only)	\??\L:	svchost.exe
File opened (read-only)	\??\G:	svchost.exe
File opened (read-only)	\??\K:	svchost.exe
File opened (read-only)	\??\T:	svchost.exe
File opened (read-only)	\??\W:	svchost.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
bootkit persistence

Bootkit
T1542.003

Processes:

wmiprvse.exe

description ioc process

File opened for modification \??\PHYSICALDRIVE0 wmiprvse.exe

description	ioc	process
File opened for modification	\??\PHYSICALDRIVE0	wmiprvse.exe

Drops file in System32 directory 15 IoCs

Processes:

svchost.exesvchost.exeOfficeClickToRun.exesvchost.exe

description	ioc	process
File opened for modification	C:\Windows\System32\Winevt\Logs\Microsoft-Windows-WindowsUpdateClient%4Operational.evtx	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\FB0D848F74F70BB2EAA93746D24D9749	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_6372E0472AFF76BB926C97818BC773B9	OfficeClickToRun.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\77EC63BDA74BD0D0E0426DC8F8008506	svchost.exe
File opened for modification	C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Scan	svchost.exe
File opened for modification	C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Maintenance Work	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\77EC63BDA74BD0D0E0426DC8F8008506	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Office\16.0\officeclicktorun.exe_Rules.xml	OfficeClickToRun.exe
File opened for modification	C:\Windows\System32\Winevt\Logs\Microsoft-Windows-Security-Mitigations%4KernelMode.evtx	svchost.exe
File opened for modification	C:\Windows\System32\Winevt\Logs\Microsoft-Windows-Security-Mitigations%4UserMode.evtx	svchost.exe
File opened for modification	C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Wake To Work	svchost.exe
File opened for modification	C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Work	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_6372E0472AFF76BB926C97818BC773B9	OfficeClickToRun.exe

Drops file in Windows directory 6 IoCs

Processes:

svchost.exe

description	ioc	process
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\ReportingEvents.log	svchost.exe
File opened for modification	C:\Windows\WindowsUpdate.log	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\DataStore.edb	svchost.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 9 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

WerFault.exemousocoreworker.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WerFault.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	mousocoreworker.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Platform Specific Field 1	mousocoreworker.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	mousocoreworker.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	mousocoreworker.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WerFault.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WerFault.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	mousocoreworker.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	mousocoreworker.exe

Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

636 schtasks.exe

pid	process
636	schtasks.exe

Enumerates system info in registry 2 TTPs 5 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

WerFault.exemousocoreworker.exewmiprvse.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WerFault.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WerFault.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	mousocoreworker.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	mousocoreworker.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	wmiprvse.exe

Modifies data under HKEY_USERS 64 IoCs

Processes:

mousocoreworker.exeOfficeClickToRun.exeWaaSMedicAgent.exesvchost.exesvchost.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\SignalManager	mousocoreworker.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	mousocoreworker.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\SignalManager\Peek	mousocoreworker.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata\officeclicktorun.exe\ULSMonitor\ULSTagIds0 = "5804129,7202269,17110992,41484365,39965824,7153487,17110988,508368333,17962391,17962392,3462423,3702920,3700754,3965062,4297094,7153421,18716193,7153435,7202265,20502174,6308191,18407617"	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\IdentityCRL\Immersive\production\Property	mousocoreworker.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\SignalManager\Peek\CacheStore	mousocoreworker.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	mousocoreworker.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata\officeclicktorun.exe\ULSMonitor	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	WaaSMedicAgent.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\IdentityCRL\ExtendedProperties\LID = "0018C00DBE62A04D"	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	svchost.exe
Key deleted	\REGISTRY\USER\.DEFAULT\SOFTWARE\MICROSOFT\OFFICE\16.0\COMMON\CLIENTTELEMETRY\RULESMETADATA\OFFICECLICKTORUN.EXE\ULSMONITOR	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\IdentityCRL\Immersive\production\Token\{0CB4A94A-6E8C-477B-88C8-A3799FC97414}	mousocoreworker.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	mousocoreworker.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesLastModified\officeclicktorun.exe = "Tue, 21 May 2024 09:23:27 GMT"	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	WaaSMedicAgent.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesLastModified\officeclicktorun.exe_queried = "1716283406"	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	WaaSMedicAgent.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\IdentityCRL\Immersive\production\Property\0018C00DBE62A04D = 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	mousocoreworker.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	mousocoreworker.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata\officeclicktorun.exe\ULSMonitor\ULSCategoriesSeverities = "1329 10,1329 50,1329 15,1329 100,1329 6"	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	WaaSMedicAgent.exe
Key deleted	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata\officeclicktorun.exe	OfficeClickToRun.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

wzcsvc.exesvchost.exewmiprvse.exe

pid	process
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
624	svchost.exe
624	svchost.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
624	svchost.exe
624	svchost.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
528	wmiprvse.exe
528	wmiprvse.exe
528	wmiprvse.exe
528	wmiprvse.exe
528	wmiprvse.exe
528	wmiprvse.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe
2592	wzcsvc.exe

Suspicious behavior: LoadsDriver 64 IoCs

Processes:

pid	process
3244
2156
4860
4436
368
4260
2272
2096
2688
2704
4128
2708
1092
2440
4076
3256
2116
4112
3604
2992
3708
4208
4248
4256
3696
4364
4400
3528
544
3820
2760
1452
508
4848
3700
4696
2252
3456
3316
4940
4504
1588
2424
4708
1564
1560
1792
2444
3956
3980
3896
3948
4932
1064
2864
3472
724
2500
3044
2740
2468
1420
752
5004

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

wzcsvc.exewzctool.exeExplorer.EXEsvchost.exesvchost.exesvchost.exe

description	pid	process
Token: SeDebugPrivilege	2592	wzcsvc.exe
Token: SeDebugPrivilege	4780	wzctool.exe
Token: SeShutdownPrivilege	3516	Explorer.EXE
Token: SeCreatePagefilePrivilege	3516	Explorer.EXE
Token: SeShutdownPrivilege	3516	Explorer.EXE
Token: SeCreatePagefilePrivilege	3516	Explorer.EXE
Token: SeAuditPrivilege	2524	svchost.exe
Token: SeShutdownPrivilege	3516	Explorer.EXE
Token: SeCreatePagefilePrivilege	3516	Explorer.EXE
Token: SeShutdownPrivilege	3516	Explorer.EXE
Token: SeCreatePagefilePrivilege	3516	Explorer.EXE
Token: SeShutdownPrivilege	3516	Explorer.EXE
Token: SeCreatePagefilePrivilege	3516	Explorer.EXE
Token: SeShutdownPrivilege	3516	Explorer.EXE
Token: SeCreatePagefilePrivilege	3516	Explorer.EXE
Token: SeShutdownPrivilege	3516	Explorer.EXE
Token: SeCreatePagefilePrivilege	3516	Explorer.EXE
Token: SeShutdownPrivilege	3516	Explorer.EXE
Token: SeCreatePagefilePrivilege	3516	Explorer.EXE
Token: SeShutdownPrivilege	3516	Explorer.EXE
Token: SeCreatePagefilePrivilege	3516	Explorer.EXE
Token: SeShutdownPrivilege	2132	svchost.exe
Token: SeCreatePagefilePrivilege	2132	svchost.exe
Token: SeShutdownPrivilege	2132	svchost.exe
Token: SeCreatePagefilePrivilege	2132	svchost.exe
Token: SeShutdownPrivilege	2132	svchost.exe
Token: SeCreatePagefilePrivilege	2132	svchost.exe
Token: SeAssignPrimaryTokenPrivilege	2564	svchost.exe
Token: SeIncreaseQuotaPrivilege	2564	svchost.exe
Token: SeSecurityPrivilege	2564	svchost.exe
Token: SeTakeOwnershipPrivilege	2564	svchost.exe
Token: SeLoadDriverPrivilege	2564	svchost.exe
Token: SeBackupPrivilege	2564	svchost.exe
Token: SeRestorePrivilege	2564	svchost.exe
Token: SeShutdownPrivilege	2564	svchost.exe
Token: SeSystemEnvironmentPrivilege	2564	svchost.exe
Token: SeManageVolumePrivilege	2564	svchost.exe
Token: SeAssignPrimaryTokenPrivilege	2564	svchost.exe
Token: SeIncreaseQuotaPrivilege	2564	svchost.exe
Token: SeSecurityPrivilege	2564	svchost.exe
Token: SeTakeOwnershipPrivilege	2564	svchost.exe
Token: SeLoadDriverPrivilege	2564	svchost.exe
Token: SeSystemtimePrivilege	2564	svchost.exe
Token: SeBackupPrivilege	2564	svchost.exe
Token: SeRestorePrivilege	2564	svchost.exe
Token: SeShutdownPrivilege	2564	svchost.exe
Token: SeSystemEnvironmentPrivilege	2564	svchost.exe
Token: SeUndockPrivilege	2564	svchost.exe
Token: SeManageVolumePrivilege	2564	svchost.exe
Token: SeAssignPrimaryTokenPrivilege	2564	svchost.exe
Token: SeIncreaseQuotaPrivilege	2564	svchost.exe
Token: SeSecurityPrivilege	2564	svchost.exe
Token: SeTakeOwnershipPrivilege	2564	svchost.exe
Token: SeLoadDriverPrivilege	2564	svchost.exe
Token: SeSystemtimePrivilege	2564	svchost.exe
Token: SeBackupPrivilege	2564	svchost.exe
Token: SeRestorePrivilege	2564	svchost.exe
Token: SeShutdownPrivilege	2564	svchost.exe
Token: SeSystemEnvironmentPrivilege	2564	svchost.exe
Token: SeUndockPrivilege	2564	svchost.exe
Token: SeManageVolumePrivilege	2564	svchost.exe
Token: SeAssignPrimaryTokenPrivilege	2564	svchost.exe
Token: SeIncreaseQuotaPrivilege	2564	svchost.exe
Token: SeSecurityPrivilege	2564	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Explorer.EXE

pid process

3516 Explorer.EXE

pid	process
3516	Explorer.EXE

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

wzcsapi32.exewzcsvc.exelsass.exe

description	pid	process	target process
PID 3200 wrote to memory of 2592	3200	wzcsapi32.exe	wzcsvc.exe
PID 3200 wrote to memory of 2592	3200	wzcsapi32.exe	wzcsvc.exe
PID 3200 wrote to memory of 4780	3200	wzcsapi32.exe	wzctool.exe
PID 3200 wrote to memory of 4780	3200	wzcsapi32.exe	wzctool.exe
PID 2592 wrote to memory of 612	2592	wzcsvc.exe	winlogon.exe
PID 2592 wrote to memory of 672	2592	wzcsvc.exe	lsass.exe
PID 2592 wrote to memory of 956	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 376	2592	wzcsvc.exe	dwm.exe
PID 672 wrote to memory of 2532	672	lsass.exe	sysmon.exe
PID 2592 wrote to memory of 652	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 916	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 992	2592	wzcsvc.exe	svchost.exe
PID 672 wrote to memory of 2532	672	lsass.exe	sysmon.exe
PID 2592 wrote to memory of 1084	2592	wzcsvc.exe	svchost.exe
PID 672 wrote to memory of 2532	672	lsass.exe	sysmon.exe
PID 2592 wrote to memory of 1208	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 1240	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 1328	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 1368	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 1388	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 1400	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 1408	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 1568	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 1592	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 1632	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 1692	2592	wzcsvc.exe	svchost.exe
PID 672 wrote to memory of 2532	672	lsass.exe	sysmon.exe
PID 672 wrote to memory of 2532	672	lsass.exe	sysmon.exe
PID 2592 wrote to memory of 1744	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 1796	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 1860	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 1884	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 1896	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 1952	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 1960	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 1536	2592	wzcsvc.exe	spoolsv.exe
PID 2592 wrote to memory of 2060	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 2160	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 2356	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 2360	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 2412	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 2524	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 2532	2592	wzcsvc.exe	sysmon.exe
PID 2592 wrote to memory of 2556	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 2564	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 2608	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 2888	2592	wzcsvc.exe	sihost.exe
PID 2592 wrote to memory of 3004	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 2292	2592	wzcsvc.exe	taskhostw.exe
PID 2592 wrote to memory of 1100	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 3088	2592	wzcsvc.exe	unsecapp.exe
PID 2592 wrote to memory of 3424	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 3516	2592	wzcsvc.exe	Explorer.EXE
PID 2592 wrote to memory of 3672	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 3864	2592	wzcsvc.exe	DllHost.exe
PID 2592 wrote to memory of 4016	2592	wzcsvc.exe	RuntimeBroker.exe
PID 2592 wrote to memory of 4152	2592	wzcsvc.exe	RuntimeBroker.exe
PID 2592 wrote to memory of 4924	2592	wzcsvc.exe	SppExtComObj.exe
PID 2592 wrote to memory of 4748	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 1260	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 2620	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 4868	2592	wzcsvc.exe	svchost.exe
PID 2592 wrote to memory of 3128	2592	wzcsvc.exe	OfficeClickToRun.exe
PID 2592 wrote to memory of 4520	2592	wzcsvc.exe	svchost.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:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:612

C:\Windows\system32\dwm.exe
"dwm.exe"
2⤵
PID:376

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 376 -s 3396
3⤵
- Checks processor information in registry
- Enumerates system info in registry
PID:2704

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 612 -s 860
2⤵
PID:2108

C:\Windows\system32\lsass.exe
C:\Windows\system32\lsass.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:672

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k DcomLaunch -p -s LSM
1⤵
PID:956

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s lmhosts
1⤵
PID:652

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s NcbService
1⤵
PID:916

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s TimeBrokerSvc
1⤵
PID:992

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s gpsvc
1⤵
PID:1084

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s EventLog
1⤵
- Drops file in System32 directory
PID:1208

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s Schedule
1⤵
- Drops file in System32 directory
PID:1240

C:\Windows\system32\taskhostw.exe
taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
2⤵
PID:2292

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s DispBrokerDesktopSvc
1⤵
PID:1328

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s ProfSvc
1⤵
PID:1368

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s EventSystem
1⤵
PID:1388

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s nsi
1⤵
PID:1400

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p -s Themes
1⤵
PID:1408

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s Dhcp
1⤵
PID:1568

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s UserManager
1⤵
PID:1592

C:\Windows\system32\sihost.exe
sihost.exe
2⤵
PID:2888

C:\Windows\system32\sihost.exe
sihost.exe
2⤵
PID:1996

C:\Windows\system32\sihost.exe
sihost.exe
2⤵
PID:3192

C:\Windows\system32\sihost.exe
sihost.exe
2⤵
PID:2116

C:\Windows\system32\sihost.exe
sihost.exe
2⤵
PID:4004

C:\Windows\system32\sihost.exe
sihost.exe
2⤵
PID:3356

C:\Windows\system32\sihost.exe
sihost.exe
2⤵
PID:2576

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s SENS
1⤵
PID:1632

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s AudioEndpointBuilder
1⤵
PID:1692

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p -s NlaSvc
1⤵
PID:1744

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
1⤵
PID:1796

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalService -p -s netprofm
1⤵
PID:1860

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkService -p -s Dnscache
1⤵
PID:1884

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
1⤵
PID:1896

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k appmodel -p -s StateRepository
1⤵
PID:1952

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p -s ShellHWDetection
1⤵
PID:1960

C:\Windows\System32\spoolsv.exe
C:\Windows\System32\spoolsv.exe
1⤵
PID:1536

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p -s LanmanWorkstation
1⤵
PID:2060

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -s RmSvc
1⤵
PID:2160

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s IKEEXT
1⤵
PID:2356

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkServiceNetworkRestricted -p -s PolicyAgent
1⤵
PID:2360

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkService -p -s CryptSvc
1⤵
- Drops file in System32 directory
PID:2412

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s LanmanServer
1⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
PID:2524

C:\Windows\sysmon.exe
C:\Windows\sysmon.exe
1⤵
PID:2532

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s TrkWks
1⤵
PID:2556

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s Winmgmt
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2564

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s WpnService
1⤵
PID:2608

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:3004

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s TokenBroker
1⤵
PID:1100

C:\Windows\system32\wbem\unsecapp.exe
C:\Windows\system32\wbem\unsecapp.exe -Embedding
1⤵
PID:3088

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s CDPSvc
1⤵
PID:3424

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3516

C:\Users\Admin\AppData\Local\Temp\wzcsapi32.exe
"C:\Users\Admin\AppData\Local\Temp\wzcsapi32.exe"
2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3200

C:\Users\Admin\AppData\Local\Temp\wzcsvc.exe
"C:\Users\Admin\AppData\Local\Temp\wzcsvc.exe"
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2592

C:\Users\Admin\AppData\Local\Temp\wzctool.exe
"C:\Users\Admin\AppData\Local\Temp\wzctool.exe"
3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4780

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /sc minute /mo 1 /rl highest /tn "wzctool" /tr "%Current%\wzctool.exe"
4⤵
- Creates scheduled task(s)
PID:636

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
1⤵
PID:3672

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:3864

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:4016

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:4152

C:\Windows\system32\SppExtComObj.exe
C:\Windows\system32\SppExtComObj.exe -Embedding
1⤵
PID:4924

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalService -p -s LicenseManager
1⤵
PID:4748

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s StorSvc
1⤵
PID:1260

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s SSDPSRV
1⤵
PID:2620

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s WinHttpAutoProxySvc
1⤵
- Modifies data under HKEY_USERS
PID:4868

C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
"C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:3128

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s wlidsvc
1⤵
- Modifies data under HKEY_USERS
PID:4520

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:4688

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:4268

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:1432

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:5088

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{AB8902B4-09CA-4BB6-B78D-A8F59079A8D5}
1⤵
PID:4956

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k WerSvcGroup
1⤵
- Suspicious behavior: EnumeratesProcesses
PID:624

C:\Windows\System32\WaaSMedicAgent.exe
C:\Windows\System32\WaaSMedicAgent.exe 6d805b4d88a017ac181ef39d70ee7ff4 FbWT1MVv9E6/2BHXTVz9tg.0.1.0.0.0
1⤵
- Sets service image path in registry
- Modifies data under HKEY_USERS
PID:4500

C:\Windows\System32\Conhost.exe
\??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
2⤵
PID:464

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:2132

C:\Windows\system32\wbem\wmiprvse.exe
C:\Windows\system32\wbem\wmiprvse.exe -secured -Embedding
1⤵
- Checks BIOS information in registry
- Writes to the Master Boot Record (MBR)
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
PID:528

C:\Windows\servicing\TrustedInstaller.exe
C:\Windows\servicing\TrustedInstaller.exe
1⤵
PID:2108

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s UsoSvc
1⤵
PID:2056

C:\Windows\System32\mousocoreworker.exe
C:\Windows\System32\mousocoreworker.exe -Embedding
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Modifies data under HKEY_USERS
PID:1316

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Pre-OS Boot

T1542

Bootkit

T1542.003

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\Microsoft\Windows\WER\Temp\WER37D9.tmp.csv

Filesize
37KB

MD5
3d988a30e1824fb316a3afe0e1baf139

SHA1
7ac3e8524bdf6f63ea3bc2f2798cc2814b508b15

SHA256
b3c630a1e89098d114087e904603ba2c2fe39194f6bdded3d12e68de6300114d

SHA512
a089bed2e253b3de15b76fae058067ae485da674f2eb48c0d6ddc6c1e3ccbecd9cb1087d8715918486a3e6f3966b3c342c5adbd81df2a36edc994ee9d795879a

Download Submit
C:\ProgramData\Microsoft\Windows\WER\Temp\WER37F9.tmp.txt

Filesize
13KB

MD5
cb9f31d0f9a7c7d68073b96cf6ca114a

SHA1
55e0a0b741386320a92f67312b79e1c3661e2afe

SHA256
98961c2d58c93dca8d658c83b3c46243aca234fd601e55a2768bdf6c9cde6d94

SHA512
3d36aa9ecb417f5f49dcbed4a33a62065eea2076387f9d5c16380538ca9abb035ccac47f845c0687242e5253298376650df6a22a2967272e3d2b5cef0647419f

Download Submit
C:\ProgramData\Microsoft\Windows\WER\Temp\WER38E4.tmp.csv

Filesize
36KB

MD5
dd4bd9148692ca856d58cf73c4713901

SHA1
44f8a865931b3c317f6623d1506f3ada88c8c092

SHA256
2afa0c684140b76d80871e3f57e6f2845896170fadedb9ce70011f63a90667af

SHA512
5c595948852355fde55a1a034b7886314cf70ae89e7282f95f797a76cf193d99100fcaf6430269260b6254d37357765ff65fbe98d96f838b2e440b329afdbe79

Download Submit
C:\ProgramData\Microsoft\Windows\WER\Temp\WER3914.tmp.txt

Filesize
13KB

MD5
90ae5b6269f21d00565453c45622105f

SHA1
77daa3d97560f75edc08f407ff5f87f0a20d91fe

SHA256
a52bc4698a02eb824b4d9ae2054355aee0bd7070e17e87b8100e42c88f5eccc9

SHA512
36765cf5983ea2490760894eea18be6c09fdc7c56231443aa0f74e5e95ad0a8282ee6d4792f1ea9777ff81f5c9f8e0b3d7f348bfece710b8a0831fe6abdb3502

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

Filesize
161KB

MD5
a69c6e092d415063a9fb80f8fe4e3444

SHA1
8b26a0fd01b1e48f7110cffecf6bc3b9d0822e9a

SHA256
f7dd8d6299c108a3221c31bf33637f59f0e19703aaa88b1e3a4f1093e7209a5d

SHA512
4e69b49d65f68ff913afbc991f06509645ac69850182f557ca625ad5cf92832059ddadb4af547cfb4fd84c4b24cf55a1ce3d9d6d466112e9581908d4e4d2da38

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

Filesize
33KB

MD5
0b99fa5fe87406b30f7d44a1d48bfc94

SHA1
2a00ed9617fed0583bb114087527ebe21a5b51ed

SHA256
0dbbb80e25c35ce28ec16b19dc70d8f213f1840a2db2674613cfa9c6bd7dc979

SHA512
90f8bed64f59c2dcfff273d661002b3b90656d161a946caa1a79065a1227fd0a3afec486aac9cb6b9432a66ebe445267fbc1c273b76dedd49d337c0875a6edda

Download Submit
C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Maintenance Work

Filesize
2KB

MD5
8abf2d6067c6f3191a015f84aa9b6efe

SHA1
98f2b0a5cdb13cd3d82dc17bd43741bf0b3496f7

SHA256
ee18bd3259f220c41062abcbe71a421da3e910df11b9f86308a16cdc3a66fbea

SHA512
c2d686a6373efcff583c1ef50c144c59addb8b9c4857ccd8565cd8be3c94b0ac0273945167eb04ebd40dfb0351e4b66cffe4c4e478fb7733714630a11f765b63

Download Submit
C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Maintenance Work

Filesize
2KB

MD5
f313c5b4f95605026428425586317353

SHA1
06be66fa06e1cffc54459c38d3d258f46669d01a

SHA256
129d0b993cd3858af5b7e87fdf74d8e59e6f2110184b5c905df8f5f6f2c39d8b

SHA512
b87a829c86eff1d10e1590b18a9909f05101a535e5f4cef914a4192956eb35a8bfef614c9f95d53783d77571687f3eb3c4e8ee2f24d23ad24e0976d8266b8890

Download Submit
C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Wake To Work

Filesize
2KB

MD5
ceb7caa4e9c4b8d760dbf7e9e5ca44c5

SHA1
a3879621f9493414d497ea6d70fbf17e283d5c08

SHA256
98c054088df4957e8d6361fd2539c219bcf35f8a524aad8f5d1a95f218e990e9

SHA512
1eddfbf4cb62d3c5b4755a371316304aaeabb00f01bad03fb4f925a98a2f0824f613537d86deddd648a74d694dc13ed5183e761fdc1ec92589f6fa28beb7fbff

Download Submit
C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Wake To Work

Filesize
2KB

MD5
7d612892b20e70250dbd00d0cdd4f09b

SHA1
63251cfa4e5d6cbf6fb14f6d8a7407dbe763d3f5

SHA256
727c9e7b91e144e453d5b32e18f12508ee84dabe71bc852941d9c9b4923f9e02

SHA512
f8d481f3300947d49ce5ab988a9d4e3154746afccc97081cbed1135ffb24fc107203d485dda2d5d714e74e752c614d8cfd16781ea93450fe782ffae3f77066d1

Download Submit
C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Work

Filesize
2KB

MD5
1e8e2076314d54dd72e7ee09ff8a52ab

SHA1
5fd0a67671430f66237f483eef39ff599b892272

SHA256
55f203d6b40a39a6beba9dd3a2cb9034284f49578009835dd4f0f8e1db6ebe2f

SHA512
5b0c97284923c4619d9c00cba20ce1c6d65d1826abe664c390b04283f7a663256b4a6efe51f794cb5ec82ccea80307729addde841469da8d041cbcfd94feb0f6

Download Submit
C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Work

Filesize
2KB

MD5
0b990e24f1e839462c0ac35fef1d119e

SHA1
9e17905f8f68f9ce0a2024d57b537aa8b39c6708

SHA256
a1106ed0845cd438e074344e0fe296dc10ee121a0179e09398eaaea2357c614a

SHA512
c65ba42fc0a2cb0b70888beb8ca334f7d5a8eaf954a5ef7adaecbcb4ce8d61b34858dfd9560954f95f59b4d8110a79ceaa39088b6a0caf8b42ceda41b46ec4a4

Download Submit
memory/376-50-0x00007FFE8142F000-0x00007FFE81430000-memory.dmp

Filesize
4KB

Download
memory/376-41-0x000001C0DD110000-0x000001C0DD13B000-memory.dmp

Filesize
172KB

Download
memory/376-49-0x000001C0DD110000-0x000001C0DD13B000-memory.dmp

Filesize
172KB

Download
memory/612-46-0x00007FFE8142D000-0x00007FFE8142E000-memory.dmp

Filesize
4KB

Download
memory/612-45-0x0000016668540000-0x000001666856B000-memory.dmp

Filesize
172KB

Download
memory/612-33-0x0000016668510000-0x0000016668535000-memory.dmp

Filesize
148KB

Download
memory/612-34-0x0000016668540000-0x000001666856B000-memory.dmp

Filesize
172KB

Download
memory/612-300-0x0000016668540000-0x000001666856B000-memory.dmp

Filesize
172KB

Download
memory/652-65-0x0000015711FA0000-0x0000015711FCB000-memory.dmp

Filesize
172KB

Download
memory/652-57-0x00007FFE41410000-0x00007FFE41420000-memory.dmp

Filesize
64KB

Download
memory/652-56-0x0000015711FA0000-0x0000015711FCB000-memory.dmp

Filesize
172KB

Download
memory/672-38-0x000001E3AB200000-0x000001E3AB22B000-memory.dmp

Filesize
172KB

Download
memory/672-47-0x000001E3AB200000-0x000001E3AB22B000-memory.dmp

Filesize
172KB

Download
memory/672-48-0x00007FFE8142D000-0x00007FFE8142E000-memory.dmp

Filesize
4KB

Download
memory/672-39-0x00007FFE41410000-0x00007FFE41420000-memory.dmp

Filesize
64KB

Download
memory/916-66-0x000002BD86690000-0x000002BD866BB000-memory.dmp

Filesize
172KB

Download
memory/916-59-0x000002BD86690000-0x000002BD866BB000-memory.dmp

Filesize
172KB

Download
memory/916-60-0x00007FFE41410000-0x00007FFE41420000-memory.dmp

Filesize
64KB

Download
memory/956-43-0x00007FFE41410000-0x00007FFE41420000-memory.dmp

Filesize
64KB

Download
memory/956-42-0x000002ACB9DA0000-0x000002ACB9DCB000-memory.dmp

Filesize
172KB

Download
memory/956-51-0x000002ACB9DA0000-0x000002ACB9DCB000-memory.dmp

Filesize
172KB

Download
memory/956-52-0x00007FFE8142C000-0x00007FFE8142D000-memory.dmp

Filesize
4KB

Download
memory/992-63-0x00007FFE41410000-0x00007FFE41420000-memory.dmp

Filesize
64KB

Download
memory/992-62-0x000002DD95540000-0x000002DD9556B000-memory.dmp

Filesize
172KB

Download
memory/992-67-0x000002DD95540000-0x000002DD9556B000-memory.dmp

Filesize
172KB

Download
memory/1084-72-0x00007FFE41410000-0x00007FFE41420000-memory.dmp

Filesize
64KB

Download
memory/1084-71-0x0000024F7C2E0000-0x0000024F7C30B000-memory.dmp

Filesize
172KB

Download
memory/1208-75-0x00007FFE41410000-0x00007FFE41420000-memory.dmp

Filesize
64KB

Download
memory/1208-74-0x00000202118F0000-0x000002021191B000-memory.dmp

Filesize
172KB

Download
memory/1240-77-0x0000028E8F930000-0x0000028E8F95B000-memory.dmp

Filesize
172KB

Download
memory/1240-78-0x00007FFE41410000-0x00007FFE41420000-memory.dmp

Filesize
64KB

Download
memory/1328-81-0x00000208C8800000-0x00000208C882B000-memory.dmp

Filesize
172KB

Download
memory/1328-82-0x00007FFE41410000-0x00007FFE41420000-memory.dmp

Filesize
64KB

Download
memory/1368-92-0x00007FFE41410000-0x00007FFE41420000-memory.dmp

Filesize
64KB

Download
memory/1368-91-0x000001BAE1D20000-0x000001BAE1D4B000-memory.dmp

Filesize
172KB

Download
memory/1388-95-0x00007FFE41410000-0x00007FFE41420000-memory.dmp

Filesize
64KB

Download
memory/1388-94-0x0000017EB79A0000-0x0000017EB79CB000-memory.dmp

Filesize
172KB

Download
memory/1400-97-0x0000021FE6FA0000-0x0000021FE6FCB000-memory.dmp

Filesize
172KB

Download
memory/1400-98-0x00007FFE41410000-0x00007FFE41420000-memory.dmp

Filesize
64KB

Download
memory/1408-100-0x0000028442FC0000-0x0000028442FEB000-memory.dmp

Filesize
172KB

Download
memory/1408-101-0x00007FFE41410000-0x00007FFE41420000-memory.dmp

Filesize
64KB

Download
memory/1568-103-0x0000022866090000-0x00000228660BB000-memory.dmp

Filesize
172KB

Download
memory/1568-104-0x00007FFE41410000-0x00007FFE41420000-memory.dmp

Filesize
64KB

Download
memory/2592-19-0x00007FFE81390000-0x00007FFE81585000-memory.dmp

Filesize
2.0MB

Download
memory/2592-20-0x00007FFE7FB80000-0x00007FFE7FC3E000-memory.dmp

Filesize
760KB

Download
memory/3200-31-0x0000000074B20000-0x00000000752D0000-memory.dmp

Filesize
7.7MB

Download
memory/3200-0-0x0000000074B2E000-0x0000000074B2F000-memory.dmp

Filesize
4KB

Download
memory/3200-5-0x0000000005910000-0x00000000059AC000-memory.dmp

Filesize
624KB

Download
memory/3200-4-0x0000000074B20000-0x00000000752D0000-memory.dmp

Filesize
7.7MB

Download
memory/3200-3-0x0000000003280000-0x00000000032A0000-memory.dmp

Filesize
128KB

Download
memory/3200-2-0x0000000003240000-0x000000000326A000-memory.dmp

Filesize
168KB

Download
memory/3200-1-0x0000000000E80000-0x0000000000EAA000-memory.dmp

Filesize
168KB

Download
memory/4780-30-0x00007FFE60FB3000-0x00007FFE60FB5000-memory.dmp

Filesize
8KB

Download
memory/4780-32-0x0000000000CF0000-0x0000000000CFE000-memory.dmp

Filesize
56KB

Download
memory/4780-387-0x00007FFE81390000-0x00007FFE81585000-memory.dmp

Filesize
2.0MB

Download
memory/4780-386-0x000000001C150000-0x000000001C15E000-memory.dmp

Filesize
56KB

Download
memory/4780-423-0x00007FFE81390000-0x00007FFE81585000-memory.dmp

Filesize
2.0MB

Download