1f9c5d031cd548540a3b67892bb36e474ae0f117cb8ceb5f4ce1295f0a700615

General

Target

342b4b0de1fa80c2874efa4cee6b29ed.exe
Size

385KB
MD5

342b4b0de1fa80c2874efa4cee6b29ed
SHA1

ff00df0fae10b85e0e9fc50ad5684cc6ad897466
SHA256

1f9c5d031cd548540a3b67892bb36e474ae0f117cb8ceb5f4ce1295f0a700615
SHA512

25eaaa6616ff57f30d4558739762077b325048367a1f086ef3383b4800056c04a69b950fb0b6765cbfab8a078dd1f77159adca9bbb8f656214bda0172cee536e

Score

10^/10

discovery spyware stealer

Malware Config

Signatures

Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs

Processes:

WerFault.exe

description pid process target process

PID 3508 created 3468 3508 WerFault.exe 342b4b0de1fa80c2874efa4cee6b29ed.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

description	pid	process	target process
PID 3508 created 3468	3508	WerFault.exe	342b4b0de1fa80c2874efa4cee6b29ed.exe

Drops file in Windows directory 4 IoCs

Processes:

svchost.exeTiWorker.exeWerFault.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
File created	C:\Windows\AppCompat\Programs\Amcache.hve.tmp	WerFault.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1416 3468 WerFault.exe 342b4b0de1fa80c2874efa4cee6b29ed.exe

pid	pid_target	process	target process
1416	3468	WerFault.exe	342b4b0de1fa80c2874efa4cee6b29ed.exe

Checks processor information in registry 2 TTPs 5 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

MusNotifyIcon.exeWerFault.exe

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

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

WerFault.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

Modifies data under HKEY_USERS 51 IoCs

Processes:

svchost.exe

description	ioc	process
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\Config\DODownloadMode = "1"	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\Usage\DownlinkBps = "0"	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\DownloadMonthlyRateFrBps = "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\GroupConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\InternetConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthlyUploadRestriction = "0"	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\DownloadMonthlyLinkLocalBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCacheHostBytes = "0"	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\CDNConnectionCount = "0"	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\UploadRatePct = "100"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "3.077098"	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\Config\KVFileExpirationTime = "132893459156174291"	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\LANConnectionCount = "0"	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\NormalDownloadPendingCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4312"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config	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\DownloadMonthlyInternetBytes = "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 = "4092"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.000000"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "3964"	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\DownloadMonthlyRateFrCnt = "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\CacheSizeBytes = "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\FrDownloadRatePct = "90"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4308"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadCount = "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\Usage\UploadMonthlyInternetBytes = "0"	svchost.exe
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\DownloadMonthlyCdnBytes = "0"	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\UplinkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\BkDownloadRatePct = "45"	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\NormalDownloadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "2.941216"	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

WerFault.exe

pid process

1416 WerFault.exe
1416 WerFault.exe

pid	process
1416	WerFault.exe
1416	WerFault.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

342b4b0de1fa80c2874efa4cee6b29ed.exeTiWorker.exe

description	pid	process
Token: SeDebugPrivilege	3468	342b4b0de1fa80c2874efa4cee6b29ed.exe
Token: SeSecurityPrivilege	3076	TiWorker.exe
Token: SeRestorePrivilege	3076	TiWorker.exe
Token: SeBackupPrivilege	3076	TiWorker.exe
Token: SeBackupPrivilege	3076	TiWorker.exe
Token: SeRestorePrivilege	3076	TiWorker.exe
Token: SeSecurityPrivilege	3076	TiWorker.exe
Token: SeBackupPrivilege	3076	TiWorker.exe
Token: SeRestorePrivilege	3076	TiWorker.exe
Token: SeSecurityPrivilege	3076	TiWorker.exe
Token: SeBackupPrivilege	3076	TiWorker.exe
Token: SeRestorePrivilege	3076	TiWorker.exe
Token: SeSecurityPrivilege	3076	TiWorker.exe
Token: SeBackupPrivilege	3076	TiWorker.exe
Token: SeRestorePrivilege	3076	TiWorker.exe
Token: SeSecurityPrivilege	3076	TiWorker.exe
Token: SeBackupPrivilege	3076	TiWorker.exe
Token: SeRestorePrivilege	3076	TiWorker.exe
Token: SeSecurityPrivilege	3076	TiWorker.exe
Token: SeBackupPrivilege	3076	TiWorker.exe
Token: SeRestorePrivilege	3076	TiWorker.exe
Token: SeSecurityPrivilege	3076	TiWorker.exe
Token: SeBackupPrivilege	3076	TiWorker.exe
Token: SeRestorePrivilege	3076	TiWorker.exe
Token: SeSecurityPrivilege	3076	TiWorker.exe
Token: SeBackupPrivilege	3076	TiWorker.exe
Token: SeRestorePrivilege	3076	TiWorker.exe
Token: SeSecurityPrivilege	3076	TiWorker.exe
Token: SeBackupPrivilege	3076	TiWorker.exe
Token: SeRestorePrivilege	3076	TiWorker.exe
Token: SeSecurityPrivilege	3076	TiWorker.exe
Token: SeBackupPrivilege	3076	TiWorker.exe
Token: SeRestorePrivilege	3076	TiWorker.exe
Token: SeSecurityPrivilege	3076	TiWorker.exe
Token: SeBackupPrivilege	3076	TiWorker.exe
Token: SeRestorePrivilege	3076	TiWorker.exe
Token: SeSecurityPrivilege	3076	TiWorker.exe
Token: SeBackupPrivilege	3076	TiWorker.exe
Token: SeRestorePrivilege	3076	TiWorker.exe
Token: SeSecurityPrivilege	3076	TiWorker.exe
Token: SeBackupPrivilege	3076	TiWorker.exe
Token: SeRestorePrivilege	3076	TiWorker.exe
Token: SeSecurityPrivilege	3076	TiWorker.exe
Token: SeBackupPrivilege	3076	TiWorker.exe
Token: SeRestorePrivilege	3076	TiWorker.exe
Token: SeSecurityPrivilege	3076	TiWorker.exe
Token: SeBackupPrivilege	3076	TiWorker.exe
Token: SeRestorePrivilege	3076	TiWorker.exe
Token: SeSecurityPrivilege	3076	TiWorker.exe
Token: SeBackupPrivilege	3076	TiWorker.exe
Token: SeRestorePrivilege	3076	TiWorker.exe
Token: SeSecurityPrivilege	3076	TiWorker.exe
Token: SeBackupPrivilege	3076	TiWorker.exe
Token: SeRestorePrivilege	3076	TiWorker.exe
Token: SeSecurityPrivilege	3076	TiWorker.exe
Token: SeBackupPrivilege	3076	TiWorker.exe
Token: SeRestorePrivilege	3076	TiWorker.exe
Token: SeSecurityPrivilege	3076	TiWorker.exe
Token: SeBackupPrivilege	3076	TiWorker.exe
Token: SeRestorePrivilege	3076	TiWorker.exe
Token: SeSecurityPrivilege	3076	TiWorker.exe
Token: SeBackupPrivilege	3076	TiWorker.exe
Token: SeRestorePrivilege	3076	TiWorker.exe
Token: SeSecurityPrivilege	3076	TiWorker.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

WerFault.exe

description	pid	process	target process
PID 3508 wrote to memory of 3468	3508	WerFault.exe	342b4b0de1fa80c2874efa4cee6b29ed.exe
PID 3508 wrote to memory of 3468	3508	WerFault.exe	342b4b0de1fa80c2874efa4cee6b29ed.exe

C:\Users\Admin\AppData\Local\Temp\342b4b0de1fa80c2874efa4cee6b29ed.exe
"C:\Users\Admin\AppData\Local\Temp\342b4b0de1fa80c2874efa4cee6b29ed.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3468

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3468 -s 1336
2⤵
- Drops file in Windows directory
- Program crash
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
PID:1416

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:3096

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:3264

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:3076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3468 -ip 3468
1⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory
PID:3508

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

3

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/3468-130-0x00000000036A0000-0x00000000036CB000-memory.dmp

Filesize
172KB

Download
memory/3468-131-0x00000000036D0000-0x0000000003709000-memory.dmp

Filesize
228KB

Download
memory/3468-132-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3468-133-0x0000000074E6E000-0x0000000074E6F000-memory.dmp

Filesize
4KB

Download
memory/3468-134-0x0000000003C90000-0x0000000003C91000-memory.dmp

Filesize
4KB

Download
memory/3468-135-0x0000000003C92000-0x0000000003C93000-memory.dmp

Filesize
4KB

Download
memory/3468-136-0x0000000003C93000-0x0000000003C94000-memory.dmp

Filesize
4KB

Download
memory/3468-137-0x0000000006060000-0x0000000006604000-memory.dmp

Filesize
5.6MB

Download
memory/3468-138-0x0000000006690000-0x0000000006CA8000-memory.dmp

Filesize
6.1MB

Download
memory/3468-139-0x0000000006D00000-0x0000000006D12000-memory.dmp

Filesize
72KB

Download
memory/3468-140-0x0000000006D20000-0x0000000006E2A000-memory.dmp

Filesize
1.0MB

Download
memory/3468-141-0x0000000006E50000-0x0000000006E8C000-memory.dmp

Filesize
240KB

Download
memory/3468-142-0x0000000003C94000-0x0000000003C96000-memory.dmp

Filesize
8KB

Download
memory/3468-143-0x0000000007170000-0x00000000071E6000-memory.dmp

Filesize
472KB

Download
memory/3468-144-0x00000000071F0000-0x0000000007282000-memory.dmp

Filesize
584KB

Download
memory/3468-145-0x00000000072F0000-0x000000000730E000-memory.dmp

Filesize
120KB

Download
memory/3468-146-0x0000000007490000-0x00000000074F6000-memory.dmp

Filesize
408KB

Download
memory/3468-147-0x0000000007BA0000-0x0000000007D62000-memory.dmp

Filesize
1.8MB

Download
memory/3468-148-0x0000000007D70000-0x000000000829C000-memory.dmp

Filesize
5.2MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads