sakula | 161ae1ecfa5343d1df7aef82caf44f6b1a6306ea28e66b88a8b81f2be8dc55ff

General

Target

161ae1ecfa5343d1df7aef82caf44f6b1a6306ea28e66b88a8b81f2be8dc55ff.exe
Size

92KB
MD5

8b5ae31342f58befa5064d201d5aca85
SHA1

49735c0e8eb5a7ff1b0f80720a2d032d295861f2
SHA256

161ae1ecfa5343d1df7aef82caf44f6b1a6306ea28e66b88a8b81f2be8dc55ff
SHA512

5b8ba5d48206dd6f1026a9edcd4a92e3ee013187e7307c244d1aff0c6bb41b7bf90a2b67e88a15825c12dc8a30fd714c04c63c0800e0def6691e5381e7a2b848

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

3420 MediaCenter.exe

pid	process
3420	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:

161ae1ecfa5343d1df7aef82caf44f6b1a6306ea28e66b88a8b81f2be8dc55ff.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	161ae1ecfa5343d1df7aef82caf44f6b1a6306ea28e66b88a8b81f2be8dc55ff.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

161ae1ecfa5343d1df7aef82caf44f6b1a6306ea28e66b88a8b81f2be8dc55ff.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"	161ae1ecfa5343d1df7aef82caf44f6b1a6306ea28e66b88a8b81f2be8dc55ff.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\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\DeliveryOptimization\State\keyValueLKG.dat	svchost.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 49 IoCs

Processes:

svchost.exe

description	ioc	process
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\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\BkDownloadRatePct = "45"	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\DownloadMonthlyInternetBytes = "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\DownloadMonthlyRateBkBps = "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\SwarmCount = "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\MonthlyUploadRestriction = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "1.250022"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "0"	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\Usage	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkCnt = "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\PeerInfoCount = "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\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\FrDownloadRatePct = "90"	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\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\CacheSizeBytes = "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\InternetConnectionCount = "0"	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\Config\DownloadMode_BackCompat = "1"	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 (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.341529"	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\DownloadMonthlyGroupBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132892887753447945"	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\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 = "4204"	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\DownloadMonthlyLinkLocalBytes = "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\PriorityDownloadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4088"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

3908 PING.EXE

pid	process
3908	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

161ae1ecfa5343d1df7aef82caf44f6b1a6306ea28e66b88a8b81f2be8dc55ff.exeTiWorker.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	1892	161ae1ecfa5343d1df7aef82caf44f6b1a6306ea28e66b88a8b81f2be8dc55ff.exe
Token: SeSecurityPrivilege	3512	TiWorker.exe
Token: SeRestorePrivilege	3512	TiWorker.exe
Token: SeBackupPrivilege	3512	TiWorker.exe
Token: SeBackupPrivilege	3512	TiWorker.exe
Token: SeRestorePrivilege	3512	TiWorker.exe
Token: SeSecurityPrivilege	3512	TiWorker.exe
Token: SeBackupPrivilege	3512	TiWorker.exe
Token: SeRestorePrivilege	3512	TiWorker.exe
Token: SeSecurityPrivilege	3512	TiWorker.exe
Token: SeBackupPrivilege	3512	TiWorker.exe
Token: SeRestorePrivilege	3512	TiWorker.exe
Token: SeSecurityPrivilege	3512	TiWorker.exe
Token: SeBackupPrivilege	3512	TiWorker.exe
Token: SeRestorePrivilege	3512	TiWorker.exe
Token: SeSecurityPrivilege	3512	TiWorker.exe
Token: SeBackupPrivilege	3512	TiWorker.exe
Token: SeRestorePrivilege	3512	TiWorker.exe
Token: SeSecurityPrivilege	3512	TiWorker.exe
Token: SeBackupPrivilege	3512	TiWorker.exe
Token: SeRestorePrivilege	3512	TiWorker.exe
Token: SeSecurityPrivilege	3512	TiWorker.exe
Token: SeBackupPrivilege	3512	TiWorker.exe
Token: SeRestorePrivilege	3512	TiWorker.exe
Token: SeSecurityPrivilege	3512	TiWorker.exe
Token: SeBackupPrivilege	3512	TiWorker.exe
Token: SeRestorePrivilege	3512	TiWorker.exe
Token: SeSecurityPrivilege	3512	TiWorker.exe
Token: SeBackupPrivilege	3512	TiWorker.exe
Token: SeRestorePrivilege	3512	TiWorker.exe
Token: SeSecurityPrivilege	3512	TiWorker.exe
Token: SeBackupPrivilege	3512	TiWorker.exe
Token: SeRestorePrivilege	3512	TiWorker.exe
Token: SeSecurityPrivilege	3512	TiWorker.exe
Token: SeBackupPrivilege	3512	TiWorker.exe
Token: SeRestorePrivilege	3512	TiWorker.exe
Token: SeSecurityPrivilege	3512	TiWorker.exe
Token: SeBackupPrivilege	3512	TiWorker.exe
Token: SeRestorePrivilege	3512	TiWorker.exe
Token: SeSecurityPrivilege	3512	TiWorker.exe
Token: SeBackupPrivilege	3512	TiWorker.exe
Token: SeRestorePrivilege	3512	TiWorker.exe
Token: SeSecurityPrivilege	3512	TiWorker.exe
Token: SeBackupPrivilege	3512	TiWorker.exe
Token: SeRestorePrivilege	3512	TiWorker.exe
Token: SeSecurityPrivilege	3512	TiWorker.exe
Token: SeBackupPrivilege	3512	TiWorker.exe
Token: SeRestorePrivilege	3512	TiWorker.exe
Token: SeSecurityPrivilege	3512	TiWorker.exe
Token: SeBackupPrivilege	3512	TiWorker.exe
Token: SeRestorePrivilege	3512	TiWorker.exe
Token: SeSecurityPrivilege	3512	TiWorker.exe
Token: SeBackupPrivilege	3512	TiWorker.exe
Token: SeRestorePrivilege	3512	TiWorker.exe
Token: SeSecurityPrivilege	3512	TiWorker.exe
Token: SeBackupPrivilege	3512	TiWorker.exe
Token: SeRestorePrivilege	3512	TiWorker.exe
Token: SeSecurityPrivilege	3512	TiWorker.exe
Token: SeBackupPrivilege	3512	TiWorker.exe
Token: SeRestorePrivilege	3512	TiWorker.exe
Token: SeSecurityPrivilege	3512	TiWorker.exe
Token: SeBackupPrivilege	3512	TiWorker.exe
Token: SeRestorePrivilege	3512	TiWorker.exe
Token: SeSecurityPrivilege	3512	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

161ae1ecfa5343d1df7aef82caf44f6b1a6306ea28e66b88a8b81f2be8dc55ff.execmd.exe

description	pid	process	target process
PID 1892 wrote to memory of 3420	1892	161ae1ecfa5343d1df7aef82caf44f6b1a6306ea28e66b88a8b81f2be8dc55ff.exe	MediaCenter.exe
PID 1892 wrote to memory of 3420	1892	161ae1ecfa5343d1df7aef82caf44f6b1a6306ea28e66b88a8b81f2be8dc55ff.exe	MediaCenter.exe
PID 1892 wrote to memory of 3420	1892	161ae1ecfa5343d1df7aef82caf44f6b1a6306ea28e66b88a8b81f2be8dc55ff.exe	MediaCenter.exe
PID 1892 wrote to memory of 2424	1892	161ae1ecfa5343d1df7aef82caf44f6b1a6306ea28e66b88a8b81f2be8dc55ff.exe	cmd.exe
PID 1892 wrote to memory of 2424	1892	161ae1ecfa5343d1df7aef82caf44f6b1a6306ea28e66b88a8b81f2be8dc55ff.exe	cmd.exe
PID 1892 wrote to memory of 2424	1892	161ae1ecfa5343d1df7aef82caf44f6b1a6306ea28e66b88a8b81f2be8dc55ff.exe	cmd.exe
PID 2424 wrote to memory of 3908	2424	cmd.exe	PING.EXE
PID 2424 wrote to memory of 3908	2424	cmd.exe	PING.EXE
PID 2424 wrote to memory of 3908	2424	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\161ae1ecfa5343d1df7aef82caf44f6b1a6306ea28e66b88a8b81f2be8dc55ff.exe
"C:\Users\Admin\AppData\Local\Temp\161ae1ecfa5343d1df7aef82caf44f6b1a6306ea28e66b88a8b81f2be8dc55ff.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1892

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:3420

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\161ae1ecfa5343d1df7aef82caf44f6b1a6306ea28e66b88a8b81f2be8dc55ff.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:2424

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:3908

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:3964

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:3152

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:3512

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
d653120b20007aadd98f76fbdb58ffc7

SHA1
a148c1eef082839f10ea8bd602cca1b650a50357

SHA256
8e4da553b128ce8ebcc1b9fff7de4843ff596506c213aa3deda0c66cc49211cc

SHA512
0984aa34f681a0168c6ee8fa77dc1b2220d5278a5ee6808c9d466a72fb557f5913a245c4f580079b77dba0ecfc3cec2839ab07d44033a6702a4edd4d6c02e69c

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

MD5
d653120b20007aadd98f76fbdb58ffc7

SHA1
a148c1eef082839f10ea8bd602cca1b650a50357

SHA256
8e4da553b128ce8ebcc1b9fff7de4843ff596506c213aa3deda0c66cc49211cc

SHA512
0984aa34f681a0168c6ee8fa77dc1b2220d5278a5ee6808c9d466a72fb557f5913a245c4f580079b77dba0ecfc3cec2839ab07d44033a6702a4edd4d6c02e69c

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads