136d5a9be1ab3f814aef29abf0242665ebd8590d12c396b340aea3ec2783b46a

General

Target

136d5a9be1ab3f814aef29abf0242665ebd8590d12c396b340aea3ec2783b46a.exe
Size

100KB
MD5

040f672a4e1f1d312a0ff40e1ada4125
SHA1

3ee9f606dd4bb6fb03c37a85f9e401664fa4e837
SHA256

136d5a9be1ab3f814aef29abf0242665ebd8590d12c396b340aea3ec2783b46a
SHA512

a02240c51324a3b6dd2f089d9f05c119ecfac3ba3feffbaf0bc4c8ffaaff0465d12697d728ed61425f13447ed1573d8ec37a07a63fb41fe24144bf274fb0a81f

Score

10^/10

Malware Config

Signatures

Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs

Processes:

WerFault.exe

description pid process target process

PID 3816 created 4084 3816 WerFault.exe 136d5a9be1ab3f814aef29abf0242665ebd8590d12c396b340aea3ec2783b46a.exe

description	pid	process	target process
PID 3816 created 4084	3816	WerFault.exe	136d5a9be1ab3f814aef29abf0242665ebd8590d12c396b340aea3ec2783b46a.exe

Drops file in Windows directory 3 IoCs

Processes:

svchost.exeTiWorker.exe

description	ioc	process
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\DeliveryOptimization\State\keyValueLKG.dat	svchost.exe
File opened for modification	C:\Windows\Logs\CBS\CBS.log	TiWorker.exe
File opened for modification	C:\Windows\WinSxS\pending.xml	TiWorker.exe

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid	pid_target	process	target process
3648	4084	WerFault.exe	136d5a9be1ab3f814aef29abf0242665ebd8590d12c396b340aea3ec2783b46a.exe
3896	4084	WerFault.exe	136d5a9be1ab3f814aef29abf0242665ebd8590d12c396b340aea3ec2783b46a.exe

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

MusNotifyIcon.exe

description	ioc	process
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	MusNotifyIcon.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	MusNotifyIcon.exe

Modifies data under HKEY_USERS 49 IoCs

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyLanBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthID = "2"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownlinkUsageBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkUsageBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4380"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DODownloadMode = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyGroupBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrCnt = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\Geo_EndpointFullUri = "https://geo.prod.do.dsp.mp.microsoft.com/geo"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\InternetConnectionCount = "0"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DownloadMode_BackCompat = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCdnBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadRatePct = "100"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "1.965038"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.000000"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLanBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkCnt = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\GroupConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownlinkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.033025"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyInternetBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyInternetBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCacheHostBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthlyUploadRestriction = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadPendingCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4116"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\LinkLocalConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\FrDownloadRatePct = "90"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\GeoVersion_EndpointFullUri = "https://geover.prod.do.dsp.mp.microsoft.com/geoversion"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CacheSizeBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\LANConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\BkDownloadRatePct = "45"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Settings	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLinkLocalBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132892927919583745"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PeerInfoCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CDNConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadPendingCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "0"	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

WerFault.exe

pid process

3648 WerFault.exe
3648 WerFault.exe

pid	process
3648	WerFault.exe
3648	WerFault.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

WerFault.exeTiWorker.exe

description	pid	process
Token: SeRestorePrivilege	3648	WerFault.exe
Token: SeBackupPrivilege	3648	WerFault.exe
Token: SeSecurityPrivilege	2768	TiWorker.exe
Token: SeRestorePrivilege	2768	TiWorker.exe
Token: SeBackupPrivilege	2768	TiWorker.exe
Token: SeBackupPrivilege	2768	TiWorker.exe
Token: SeRestorePrivilege	2768	TiWorker.exe
Token: SeSecurityPrivilege	2768	TiWorker.exe
Token: SeBackupPrivilege	2768	TiWorker.exe
Token: SeRestorePrivilege	2768	TiWorker.exe
Token: SeSecurityPrivilege	2768	TiWorker.exe
Token: SeBackupPrivilege	2768	TiWorker.exe
Token: SeRestorePrivilege	2768	TiWorker.exe
Token: SeSecurityPrivilege	2768	TiWorker.exe
Token: SeBackupPrivilege	2768	TiWorker.exe
Token: SeRestorePrivilege	2768	TiWorker.exe
Token: SeSecurityPrivilege	2768	TiWorker.exe
Token: SeBackupPrivilege	2768	TiWorker.exe
Token: SeRestorePrivilege	2768	TiWorker.exe
Token: SeSecurityPrivilege	2768	TiWorker.exe
Token: SeBackupPrivilege	2768	TiWorker.exe
Token: SeRestorePrivilege	2768	TiWorker.exe
Token: SeSecurityPrivilege	2768	TiWorker.exe
Token: SeBackupPrivilege	2768	TiWorker.exe
Token: SeRestorePrivilege	2768	TiWorker.exe
Token: SeSecurityPrivilege	2768	TiWorker.exe
Token: SeBackupPrivilege	2768	TiWorker.exe
Token: SeRestorePrivilege	2768	TiWorker.exe
Token: SeSecurityPrivilege	2768	TiWorker.exe
Token: SeBackupPrivilege	2768	TiWorker.exe
Token: SeRestorePrivilege	2768	TiWorker.exe
Token: SeSecurityPrivilege	2768	TiWorker.exe
Token: SeBackupPrivilege	2768	TiWorker.exe
Token: SeRestorePrivilege	2768	TiWorker.exe
Token: SeSecurityPrivilege	2768	TiWorker.exe
Token: SeBackupPrivilege	2768	TiWorker.exe
Token: SeRestorePrivilege	2768	TiWorker.exe
Token: SeSecurityPrivilege	2768	TiWorker.exe
Token: SeBackupPrivilege	2768	TiWorker.exe
Token: SeRestorePrivilege	2768	TiWorker.exe
Token: SeSecurityPrivilege	2768	TiWorker.exe
Token: SeBackupPrivilege	2768	TiWorker.exe
Token: SeRestorePrivilege	2768	TiWorker.exe
Token: SeSecurityPrivilege	2768	TiWorker.exe
Token: SeBackupPrivilege	2768	TiWorker.exe
Token: SeRestorePrivilege	2768	TiWorker.exe
Token: SeSecurityPrivilege	2768	TiWorker.exe
Token: SeBackupPrivilege	2768	TiWorker.exe
Token: SeRestorePrivilege	2768	TiWorker.exe
Token: SeSecurityPrivilege	2768	TiWorker.exe
Token: SeBackupPrivilege	2768	TiWorker.exe
Token: SeRestorePrivilege	2768	TiWorker.exe
Token: SeSecurityPrivilege	2768	TiWorker.exe
Token: SeBackupPrivilege	2768	TiWorker.exe
Token: SeRestorePrivilege	2768	TiWorker.exe
Token: SeSecurityPrivilege	2768	TiWorker.exe
Token: SeBackupPrivilege	2768	TiWorker.exe
Token: SeRestorePrivilege	2768	TiWorker.exe
Token: SeSecurityPrivilege	2768	TiWorker.exe
Token: SeBackupPrivilege	2768	TiWorker.exe
Token: SeRestorePrivilege	2768	TiWorker.exe
Token: SeSecurityPrivilege	2768	TiWorker.exe
Token: SeBackupPrivilege	2768	TiWorker.exe
Token: SeRestorePrivilege	2768	TiWorker.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

136d5a9be1ab3f814aef29abf0242665ebd8590d12c396b340aea3ec2783b46a.exeWerFault.exe

description	pid	process	target process
PID 4084 wrote to memory of 3648	4084	136d5a9be1ab3f814aef29abf0242665ebd8590d12c396b340aea3ec2783b46a.exe	WerFault.exe
PID 4084 wrote to memory of 3648	4084	136d5a9be1ab3f814aef29abf0242665ebd8590d12c396b340aea3ec2783b46a.exe	WerFault.exe
PID 4084 wrote to memory of 3648	4084	136d5a9be1ab3f814aef29abf0242665ebd8590d12c396b340aea3ec2783b46a.exe	WerFault.exe
PID 3816 wrote to memory of 4084	3816	WerFault.exe	136d5a9be1ab3f814aef29abf0242665ebd8590d12c396b340aea3ec2783b46a.exe
PID 3816 wrote to memory of 4084	3816	WerFault.exe	136d5a9be1ab3f814aef29abf0242665ebd8590d12c396b340aea3ec2783b46a.exe

C:\Users\Admin\AppData\Local\Temp\136d5a9be1ab3f814aef29abf0242665ebd8590d12c396b340aea3ec2783b46a.exe
"C:\Users\Admin\AppData\Local\Temp\136d5a9be1ab3f814aef29abf0242665ebd8590d12c396b340aea3ec2783b46a.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4084 -s 340
2⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3648

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4084 -s 340
2⤵
- Program crash
PID:3896

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 0
1⤵
- Checks processor information in registry
PID:3040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4084 -ip 4084
1⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory
PID:3816

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p
1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
PID:1448

C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:2768

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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