sakula | 141943564b250fb9d3dc2bd0e97e6127f104b4316da74b3ce81b9a361a47be99

General

Target

141943564b250fb9d3dc2bd0e97e6127f104b4316da74b3ce81b9a361a47be99.exe
Size

58KB
MD5

b5214030686cfa8936d72e856a591e21
SHA1

1f6c0aa3df29c620e75ce696df78580b666fa962
SHA256

141943564b250fb9d3dc2bd0e97e6127f104b4316da74b3ce81b9a361a47be99
SHA512

3811df59b88c176294a3aeb155685af039f517a2bd8d3d1db3a19d05f579e7d9aa901c925fee71b3ca76b5e4acf349e20301153084bf1264241cef2249854f6d

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

4072 MediaCenter.exe

pid	process
4072	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:

141943564b250fb9d3dc2bd0e97e6127f104b4316da74b3ce81b9a361a47be99.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	141943564b250fb9d3dc2bd0e97e6127f104b4316da74b3ce81b9a361a47be99.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

141943564b250fb9d3dc2bd0e97e6127f104b4316da74b3ce81b9a361a47be99.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"	141943564b250fb9d3dc2bd0e97e6127f104b4316da74b3ce81b9a361a47be99.exe

Drops file in Windows directory 3 IoCs

Processes:

TiWorker.exesvchost.exe

description	ioc	process
File opened for modification	C:\Windows\WinSxS\pending.xml	TiWorker.exe
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

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

System Information Discovery
T1082

Modifies data under HKEY_USERS 47 IoCs

Processes:

svchost.exe

description	ioc	process
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\MonthlyUploadRestriction = "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\InternetConnectionCount = "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\UploadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4404"	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\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\Usage\CPUpct = "1.811590"	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 (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\UploadRatePct = "100"	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\DownloadMonthlyRateBkCnt = "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\LinkLocalConnectionCount = "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\NormalDownloadCount = "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 = "4184"	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\UploadMonthlyLanBytes = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.038700"	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\DownlinkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132892917958284329"	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\SwarmCount = "1"	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
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\DownloadMonthlyRateBkBps = "0"	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\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\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 (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
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\Usage\UploadMonthlyInternetBytes = "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\PeerInfoCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\LANConnectionCount = "0"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

2276 PING.EXE

pid	process
2276	PING.EXE

Suspicious use of AdjustPrivilegeToken 22 IoCs

Processes:

141943564b250fb9d3dc2bd0e97e6127f104b4316da74b3ce81b9a361a47be99.exeTiWorker.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	2252	141943564b250fb9d3dc2bd0e97e6127f104b4316da74b3ce81b9a361a47be99.exe
Token: SeSecurityPrivilege	2084	TiWorker.exe
Token: SeRestorePrivilege	2084	TiWorker.exe
Token: SeBackupPrivilege	2084	TiWorker.exe
Token: SeBackupPrivilege	2084	TiWorker.exe
Token: SeRestorePrivilege	2084	TiWorker.exe
Token: SeSecurityPrivilege	2084	TiWorker.exe
Token: SeBackupPrivilege	2084	TiWorker.exe
Token: SeRestorePrivilege	2084	TiWorker.exe
Token: SeSecurityPrivilege	2084	TiWorker.exe
Token: SeBackupPrivilege	2084	TiWorker.exe
Token: SeRestorePrivilege	2084	TiWorker.exe
Token: SeSecurityPrivilege	2084	TiWorker.exe
Token: SeBackupPrivilege	2084	TiWorker.exe
Token: SeRestorePrivilege	2084	TiWorker.exe
Token: SeSecurityPrivilege	2084	TiWorker.exe
Token: SeBackupPrivilege	2084	TiWorker.exe
Token: SeRestorePrivilege	2084	TiWorker.exe
Token: SeSecurityPrivilege	2084	TiWorker.exe
Token: SeBackupPrivilege	2084	TiWorker.exe
Token: SeRestorePrivilege	2084	TiWorker.exe
Token: SeSecurityPrivilege	2084	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

141943564b250fb9d3dc2bd0e97e6127f104b4316da74b3ce81b9a361a47be99.execmd.exe

description	pid	process	target process
PID 2252 wrote to memory of 4072	2252	141943564b250fb9d3dc2bd0e97e6127f104b4316da74b3ce81b9a361a47be99.exe	MediaCenter.exe
PID 2252 wrote to memory of 4072	2252	141943564b250fb9d3dc2bd0e97e6127f104b4316da74b3ce81b9a361a47be99.exe	MediaCenter.exe
PID 2252 wrote to memory of 4072	2252	141943564b250fb9d3dc2bd0e97e6127f104b4316da74b3ce81b9a361a47be99.exe	MediaCenter.exe
PID 2252 wrote to memory of 2112	2252	141943564b250fb9d3dc2bd0e97e6127f104b4316da74b3ce81b9a361a47be99.exe	cmd.exe
PID 2252 wrote to memory of 2112	2252	141943564b250fb9d3dc2bd0e97e6127f104b4316da74b3ce81b9a361a47be99.exe	cmd.exe
PID 2252 wrote to memory of 2112	2252	141943564b250fb9d3dc2bd0e97e6127f104b4316da74b3ce81b9a361a47be99.exe	cmd.exe
PID 2112 wrote to memory of 2276	2112	cmd.exe	PING.EXE
PID 2112 wrote to memory of 2276	2112	cmd.exe	PING.EXE
PID 2112 wrote to memory of 2276	2112	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\141943564b250fb9d3dc2bd0e97e6127f104b4316da74b3ce81b9a361a47be99.exe
"C:\Users\Admin\AppData\Local\Temp\141943564b250fb9d3dc2bd0e97e6127f104b4316da74b3ce81b9a361a47be99.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2252

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:4072

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\141943564b250fb9d3dc2bd0e97e6127f104b4316da74b3ce81b9a361a47be99.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:2112

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:2276

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:3680

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:2084

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

1

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

MD5
f21591a97b9d4d7869153cd71718c5bb

SHA1
7a93dc9dc9919ce7302ade26bbb3e943ff0e8f54

SHA256
81045603ac0e8d807dc028c4d971a3b968c3ad29b4aa8f0c8af5e5867882a25a

SHA512
416189a141f862b1fdf1340061dffdd312a0670b9cfc83e48b69c806e81dfc79f3b1a9432e1ab56b479b40b69cd59d71ebc6b8638ebec85441024aca7caf96d6

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

MD5
f21591a97b9d4d7869153cd71718c5bb

SHA1
7a93dc9dc9919ce7302ade26bbb3e943ff0e8f54

SHA256
81045603ac0e8d807dc028c4d971a3b968c3ad29b4aa8f0c8af5e5867882a25a

SHA512
416189a141f862b1fdf1340061dffdd312a0670b9cfc83e48b69c806e81dfc79f3b1a9432e1ab56b479b40b69cd59d71ebc6b8638ebec85441024aca7caf96d6

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads