sakula | 1891ca6eb7e7e9aabab817b7e83eb82c400836952b2ad0f58a3ac2ff24da6187

General

Target

1891ca6eb7e7e9aabab817b7e83eb82c400836952b2ad0f58a3ac2ff24da6187.exe
Size

150KB
MD5

3c30a0951fb24a5c3166fbcb35dafcca
SHA1

fba602abb1f9018a9a2ab1ac60e3b85a8a19fce6
SHA256

1891ca6eb7e7e9aabab817b7e83eb82c400836952b2ad0f58a3ac2ff24da6187
SHA512

9e78656a613fb3a244c02142bca9801b81be8ac52cb780730d7750b5114b15ccf1b909dbb8e5bf185a1ffd8ae0c793edc96fcfb5930d09734b258e765dc1dc27

Score

10^/10

sakula persistence rat trojan

Malware Config

Signatures

Sakula
Sakula is a remote access trojan with various capabilities.
trojan rat sakula

Sakula Payload 2 IoCs

Processes:

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

Executes dropped EXE 1 IoCs

Processes:

MediaCenter.exe

pid process

1736 MediaCenter.exe

pid	process
1736	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:

1891ca6eb7e7e9aabab817b7e83eb82c400836952b2ad0f58a3ac2ff24da6187.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	1891ca6eb7e7e9aabab817b7e83eb82c400836952b2ad0f58a3ac2ff24da6187.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

1891ca6eb7e7e9aabab817b7e83eb82c400836952b2ad0f58a3ac2ff24da6187.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"	1891ca6eb7e7e9aabab817b7e83eb82c400836952b2ad0f58a3ac2ff24da6187.exe

Drops file in Windows directory 3 IoCs

Processes:

TiWorker.exesvchost.exe

description	ioc	process
File opened for modification	C:\Windows\Logs\CBS\CBS.log	TiWorker.exe
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

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 47 IoCs

Processes:

svchost.exe

description	ioc	process
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\DownloadMonthlyInternetBytes = "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\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 (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.227792"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4284"	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\DownloadMonthlyCacheHostBytes = "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\MonthID = "2"	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\UploadCount = "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\DownloadMonthlyLanBytes = "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\SwarmCount = "1"	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 (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 = "4096"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "1.923016"	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\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\DownloadMonthlyRateBkCnt = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132892853544284257"	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\LinkLocalConnectionCount = "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\DownloadMonthlyCdnBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\FrDownloadRatePct = "90"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage	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\InternetConnectionCount = "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\UplinkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLinkLocalBytes = "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\CDNConnectionCount = "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\DownloadMonthlyRateBkBps = "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\LANConnectionCount = "0"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1640 PING.EXE

pid	process
1640	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

1891ca6eb7e7e9aabab817b7e83eb82c400836952b2ad0f58a3ac2ff24da6187.exeTiWorker.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	3936	1891ca6eb7e7e9aabab817b7e83eb82c400836952b2ad0f58a3ac2ff24da6187.exe
Token: SeSecurityPrivilege	2708	TiWorker.exe
Token: SeRestorePrivilege	2708	TiWorker.exe
Token: SeBackupPrivilege	2708	TiWorker.exe
Token: SeBackupPrivilege	2708	TiWorker.exe
Token: SeRestorePrivilege	2708	TiWorker.exe
Token: SeSecurityPrivilege	2708	TiWorker.exe
Token: SeBackupPrivilege	2708	TiWorker.exe
Token: SeRestorePrivilege	2708	TiWorker.exe
Token: SeSecurityPrivilege	2708	TiWorker.exe
Token: SeBackupPrivilege	2708	TiWorker.exe
Token: SeRestorePrivilege	2708	TiWorker.exe
Token: SeSecurityPrivilege	2708	TiWorker.exe
Token: SeBackupPrivilege	2708	TiWorker.exe
Token: SeRestorePrivilege	2708	TiWorker.exe
Token: SeSecurityPrivilege	2708	TiWorker.exe
Token: SeBackupPrivilege	2708	TiWorker.exe
Token: SeRestorePrivilege	2708	TiWorker.exe
Token: SeSecurityPrivilege	2708	TiWorker.exe
Token: SeBackupPrivilege	2708	TiWorker.exe
Token: SeRestorePrivilege	2708	TiWorker.exe
Token: SeSecurityPrivilege	2708	TiWorker.exe
Token: SeBackupPrivilege	2708	TiWorker.exe
Token: SeRestorePrivilege	2708	TiWorker.exe
Token: SeSecurityPrivilege	2708	TiWorker.exe
Token: SeBackupPrivilege	2708	TiWorker.exe
Token: SeRestorePrivilege	2708	TiWorker.exe
Token: SeSecurityPrivilege	2708	TiWorker.exe
Token: SeBackupPrivilege	2708	TiWorker.exe
Token: SeRestorePrivilege	2708	TiWorker.exe
Token: SeSecurityPrivilege	2708	TiWorker.exe
Token: SeBackupPrivilege	2708	TiWorker.exe
Token: SeRestorePrivilege	2708	TiWorker.exe
Token: SeSecurityPrivilege	2708	TiWorker.exe
Token: SeBackupPrivilege	2708	TiWorker.exe
Token: SeRestorePrivilege	2708	TiWorker.exe
Token: SeSecurityPrivilege	2708	TiWorker.exe
Token: SeBackupPrivilege	2708	TiWorker.exe
Token: SeRestorePrivilege	2708	TiWorker.exe
Token: SeSecurityPrivilege	2708	TiWorker.exe
Token: SeBackupPrivilege	2708	TiWorker.exe
Token: SeRestorePrivilege	2708	TiWorker.exe
Token: SeSecurityPrivilege	2708	TiWorker.exe
Token: SeBackupPrivilege	2708	TiWorker.exe
Token: SeRestorePrivilege	2708	TiWorker.exe
Token: SeSecurityPrivilege	2708	TiWorker.exe
Token: SeBackupPrivilege	2708	TiWorker.exe
Token: SeRestorePrivilege	2708	TiWorker.exe
Token: SeSecurityPrivilege	2708	TiWorker.exe
Token: SeBackupPrivilege	2708	TiWorker.exe
Token: SeRestorePrivilege	2708	TiWorker.exe
Token: SeSecurityPrivilege	2708	TiWorker.exe
Token: SeBackupPrivilege	2708	TiWorker.exe
Token: SeRestorePrivilege	2708	TiWorker.exe
Token: SeSecurityPrivilege	2708	TiWorker.exe
Token: SeBackupPrivilege	2708	TiWorker.exe
Token: SeRestorePrivilege	2708	TiWorker.exe
Token: SeSecurityPrivilege	2708	TiWorker.exe
Token: SeBackupPrivilege	2708	TiWorker.exe
Token: SeRestorePrivilege	2708	TiWorker.exe
Token: SeSecurityPrivilege	2708	TiWorker.exe
Token: SeBackupPrivilege	2708	TiWorker.exe
Token: SeRestorePrivilege	2708	TiWorker.exe
Token: SeSecurityPrivilege	2708	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

1891ca6eb7e7e9aabab817b7e83eb82c400836952b2ad0f58a3ac2ff24da6187.execmd.exe

description	pid	process	target process
PID 3936 wrote to memory of 1736	3936	1891ca6eb7e7e9aabab817b7e83eb82c400836952b2ad0f58a3ac2ff24da6187.exe	MediaCenter.exe
PID 3936 wrote to memory of 1736	3936	1891ca6eb7e7e9aabab817b7e83eb82c400836952b2ad0f58a3ac2ff24da6187.exe	MediaCenter.exe
PID 3936 wrote to memory of 1736	3936	1891ca6eb7e7e9aabab817b7e83eb82c400836952b2ad0f58a3ac2ff24da6187.exe	MediaCenter.exe
PID 3936 wrote to memory of 2956	3936	1891ca6eb7e7e9aabab817b7e83eb82c400836952b2ad0f58a3ac2ff24da6187.exe	cmd.exe
PID 3936 wrote to memory of 2956	3936	1891ca6eb7e7e9aabab817b7e83eb82c400836952b2ad0f58a3ac2ff24da6187.exe	cmd.exe
PID 3936 wrote to memory of 2956	3936	1891ca6eb7e7e9aabab817b7e83eb82c400836952b2ad0f58a3ac2ff24da6187.exe	cmd.exe
PID 2956 wrote to memory of 1640	2956	cmd.exe	PING.EXE
PID 2956 wrote to memory of 1640	2956	cmd.exe	PING.EXE
PID 2956 wrote to memory of 1640	2956	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\1891ca6eb7e7e9aabab817b7e83eb82c400836952b2ad0f58a3ac2ff24da6187.exe
"C:\Users\Admin\AppData\Local\Temp\1891ca6eb7e7e9aabab817b7e83eb82c400836952b2ad0f58a3ac2ff24da6187.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3936

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:1736

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\1891ca6eb7e7e9aabab817b7e83eb82c400836952b2ad0f58a3ac2ff24da6187.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:2956

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:1640

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:1244

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:824

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:2708

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

MD5
2d5565f0fcab4cb8c3b84bacfc0a0524

SHA1
e910bad58a3e6cfd5ecfbf43619d6f3db3b51066

SHA256
2b712d38cae1d1d2461e6071b3a6e5c03e17f2bc7d50efe513899173efd4be76

SHA512
0a7afd63f70ecc6c52d5509a62442d9348fe47cbc39c4cc34d8fdd5f9014768683150da238c725c67fb192f25343ad185fd68591d37dc13f920106700cd38b6c

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

MD5
2d5565f0fcab4cb8c3b84bacfc0a0524

SHA1
e910bad58a3e6cfd5ecfbf43619d6f3db3b51066

SHA256
2b712d38cae1d1d2461e6071b3a6e5c03e17f2bc7d50efe513899173efd4be76

SHA512
0a7afd63f70ecc6c52d5509a62442d9348fe47cbc39c4cc34d8fdd5f9014768683150da238c725c67fb192f25343ad185fd68591d37dc13f920106700cd38b6c

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads