sakula | 191f8eba88e39c1d50380fa9e21209842e229731b78ba66e5aec29f8499e56e1

General

Target

191f8eba88e39c1d50380fa9e21209842e229731b78ba66e5aec29f8499e56e1.exe
Size

60KB
MD5

7d03dd3299c8529b1a7bf2570dc62b7a
SHA1

0a330a4a5f0d9949990a7ffebe3ee3c00ed25511
SHA256

191f8eba88e39c1d50380fa9e21209842e229731b78ba66e5aec29f8499e56e1
SHA512

74150921c35e16c0ef16d4ca1ffb44d0bb95b01909dec04a8510f073df249a0f6bf5d5d0cd3b981ed49667b2d8532074bf3ea2542593de01da8e19cb2a424579

Score

10^/10

sakula persistence rat trojan

Malware Config

Signatures

Sakula
Sakula is a remote access trojan with various capabilities.
trojan rat sakula
Executes dropped EXE 1 IoCs

Processes:

MediaCenter.exe

pid process

3532 MediaCenter.exe

pid	process
3532	MediaCenter.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:

191f8eba88e39c1d50380fa9e21209842e229731b78ba66e5aec29f8499e56e1.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	191f8eba88e39c1d50380fa9e21209842e229731b78ba66e5aec29f8499e56e1.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

191f8eba88e39c1d50380fa9e21209842e229731b78ba66e5aec29f8499e56e1.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe"	191f8eba88e39c1d50380fa9e21209842e229731b78ba66e5aec29f8499e56e1.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

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

System Information Discovery
T1082

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 50 IoCs

Processes:

svchost.exe

description	ioc	process
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\UploadMonthlyLanBytes = "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\Config\KVFileExpirationTime = "132892845905580527"	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\InternetConnectionCount = "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\BkDownloadRatePct = "45"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4344"	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\DownloadMonthlyGroupBytes = "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\CacheSizeBytes = "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\PriorityDownloadPendingCount = "0"	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\UplinkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4328"	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\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\MonthlyUploadRestriction = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "5.085127"	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
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\DownloadMonthlyCdnBytes = "0"	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\DownloadMonthlyRateBkBps = "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\UploadRatePct = "100"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadPendingCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "8.336988"	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\DownloadMonthlyCacheHostBytes = "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\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 (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.999970"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLanBytes = "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\LinkLocalConnectionCount = "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\NormalDownloadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4120"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1596 PING.EXE

pid	process
1596	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

191f8eba88e39c1d50380fa9e21209842e229731b78ba66e5aec29f8499e56e1.exeTiWorker.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	3152	191f8eba88e39c1d50380fa9e21209842e229731b78ba66e5aec29f8499e56e1.exe
Token: SeSecurityPrivilege	4080	TiWorker.exe
Token: SeRestorePrivilege	4080	TiWorker.exe
Token: SeBackupPrivilege	4080	TiWorker.exe
Token: SeBackupPrivilege	4080	TiWorker.exe
Token: SeRestorePrivilege	4080	TiWorker.exe
Token: SeSecurityPrivilege	4080	TiWorker.exe
Token: SeBackupPrivilege	4080	TiWorker.exe
Token: SeRestorePrivilege	4080	TiWorker.exe
Token: SeSecurityPrivilege	4080	TiWorker.exe
Token: SeBackupPrivilege	4080	TiWorker.exe
Token: SeRestorePrivilege	4080	TiWorker.exe
Token: SeSecurityPrivilege	4080	TiWorker.exe
Token: SeBackupPrivilege	4080	TiWorker.exe
Token: SeRestorePrivilege	4080	TiWorker.exe
Token: SeSecurityPrivilege	4080	TiWorker.exe
Token: SeBackupPrivilege	4080	TiWorker.exe
Token: SeRestorePrivilege	4080	TiWorker.exe
Token: SeSecurityPrivilege	4080	TiWorker.exe
Token: SeBackupPrivilege	4080	TiWorker.exe
Token: SeRestorePrivilege	4080	TiWorker.exe
Token: SeSecurityPrivilege	4080	TiWorker.exe
Token: SeBackupPrivilege	4080	TiWorker.exe
Token: SeRestorePrivilege	4080	TiWorker.exe
Token: SeSecurityPrivilege	4080	TiWorker.exe
Token: SeBackupPrivilege	4080	TiWorker.exe
Token: SeRestorePrivilege	4080	TiWorker.exe
Token: SeSecurityPrivilege	4080	TiWorker.exe
Token: SeBackupPrivilege	4080	TiWorker.exe
Token: SeRestorePrivilege	4080	TiWorker.exe
Token: SeSecurityPrivilege	4080	TiWorker.exe
Token: SeBackupPrivilege	4080	TiWorker.exe
Token: SeRestorePrivilege	4080	TiWorker.exe
Token: SeSecurityPrivilege	4080	TiWorker.exe
Token: SeBackupPrivilege	4080	TiWorker.exe
Token: SeRestorePrivilege	4080	TiWorker.exe
Token: SeSecurityPrivilege	4080	TiWorker.exe
Token: SeBackupPrivilege	4080	TiWorker.exe
Token: SeRestorePrivilege	4080	TiWorker.exe
Token: SeSecurityPrivilege	4080	TiWorker.exe
Token: SeBackupPrivilege	4080	TiWorker.exe
Token: SeRestorePrivilege	4080	TiWorker.exe
Token: SeSecurityPrivilege	4080	TiWorker.exe
Token: SeBackupPrivilege	4080	TiWorker.exe
Token: SeRestorePrivilege	4080	TiWorker.exe
Token: SeSecurityPrivilege	4080	TiWorker.exe
Token: SeBackupPrivilege	4080	TiWorker.exe
Token: SeRestorePrivilege	4080	TiWorker.exe
Token: SeSecurityPrivilege	4080	TiWorker.exe
Token: SeBackupPrivilege	4080	TiWorker.exe
Token: SeRestorePrivilege	4080	TiWorker.exe
Token: SeSecurityPrivilege	4080	TiWorker.exe
Token: SeBackupPrivilege	4080	TiWorker.exe
Token: SeRestorePrivilege	4080	TiWorker.exe
Token: SeSecurityPrivilege	4080	TiWorker.exe
Token: SeBackupPrivilege	4080	TiWorker.exe
Token: SeRestorePrivilege	4080	TiWorker.exe
Token: SeSecurityPrivilege	4080	TiWorker.exe
Token: SeBackupPrivilege	4080	TiWorker.exe
Token: SeRestorePrivilege	4080	TiWorker.exe
Token: SeSecurityPrivilege	4080	TiWorker.exe
Token: SeBackupPrivilege	4080	TiWorker.exe
Token: SeRestorePrivilege	4080	TiWorker.exe
Token: SeSecurityPrivilege	4080	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

191f8eba88e39c1d50380fa9e21209842e229731b78ba66e5aec29f8499e56e1.execmd.exe

description	pid	process	target process
PID 3152 wrote to memory of 3532	3152	191f8eba88e39c1d50380fa9e21209842e229731b78ba66e5aec29f8499e56e1.exe	MediaCenter.exe
PID 3152 wrote to memory of 3532	3152	191f8eba88e39c1d50380fa9e21209842e229731b78ba66e5aec29f8499e56e1.exe	MediaCenter.exe
PID 3152 wrote to memory of 3532	3152	191f8eba88e39c1d50380fa9e21209842e229731b78ba66e5aec29f8499e56e1.exe	MediaCenter.exe
PID 3152 wrote to memory of 1464	3152	191f8eba88e39c1d50380fa9e21209842e229731b78ba66e5aec29f8499e56e1.exe	cmd.exe
PID 3152 wrote to memory of 1464	3152	191f8eba88e39c1d50380fa9e21209842e229731b78ba66e5aec29f8499e56e1.exe	cmd.exe
PID 3152 wrote to memory of 1464	3152	191f8eba88e39c1d50380fa9e21209842e229731b78ba66e5aec29f8499e56e1.exe	cmd.exe
PID 1464 wrote to memory of 1596	1464	cmd.exe	PING.EXE
PID 1464 wrote to memory of 1596	1464	cmd.exe	PING.EXE
PID 1464 wrote to memory of 1596	1464	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\191f8eba88e39c1d50380fa9e21209842e229731b78ba66e5aec29f8499e56e1.exe
"C:\Users\Admin\AppData\Local\Temp\191f8eba88e39c1d50380fa9e21209842e229731b78ba66e5aec29f8499e56e1.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3152

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:3532

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\191f8eba88e39c1d50380fa9e21209842e229731b78ba66e5aec29f8499e56e1.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1464

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:1596

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:3912

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:2760

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:4080

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

Remote System Discovery

1

T1018

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe

MD5
9288916b07031fc683f1c7e2ac5d3055

SHA1
726d33cf42a3a65aebd0f19fcc6050991f077f17

SHA256
1867be28610c1429f5d04de32285b6cb57648fc8f28f97c29c7f052f7b2f9405

SHA512
66a02d0e3e09c257a85bd2761ab00e1a86e7ec21e25d5cc3dd4d493f1123b2f1d83289c4d407fea2ff6e8385ff873673acd5f281f0a773061d05de2bc213be68

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C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe

MD5
9288916b07031fc683f1c7e2ac5d3055

SHA1
726d33cf42a3a65aebd0f19fcc6050991f077f17

SHA256
1867be28610c1429f5d04de32285b6cb57648fc8f28f97c29c7f052f7b2f9405

SHA512
66a02d0e3e09c257a85bd2761ab00e1a86e7ec21e25d5cc3dd4d493f1123b2f1d83289c4d407fea2ff6e8385ff873673acd5f281f0a773061d05de2bc213be68

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads