sakula | 18f84bdb542e635ac3ac945de6b5b98905fdddc5b2a70f7ad94b81867deb6bcc

General

Target

18f84bdb542e635ac3ac945de6b5b98905fdddc5b2a70f7ad94b81867deb6bcc.exe
Size

100KB
MD5

40838f13add6d2d951097039e343b091
SHA1

f953ee277543648ec5f4f0151077d3927b638c60
SHA256

18f84bdb542e635ac3ac945de6b5b98905fdddc5b2a70f7ad94b81867deb6bcc
SHA512

47aa3259b24939ef4c1878d5d00f7cbc340a8a7bb4c2f4b21f5f2b9841eece8948ff59313d3ee5e16ffc604c29c4b5db21f3e7ad2a719384b08f603465882291

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

3560 MediaCenter.exe

pid	process
3560	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:

18f84bdb542e635ac3ac945de6b5b98905fdddc5b2a70f7ad94b81867deb6bcc.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	18f84bdb542e635ac3ac945de6b5b98905fdddc5b2a70f7ad94b81867deb6bcc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

18f84bdb542e635ac3ac945de6b5b98905fdddc5b2a70f7ad94b81867deb6bcc.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"	18f84bdb542e635ac3ac945de6b5b98905fdddc5b2a70f7ad94b81867deb6bcc.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	MusNotifyIcon.exe
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	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\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 (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.111441"	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\Config\DODownloadMode = "1"	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 (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\DownloadMonthlyRateBkCnt = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132892847383263504"	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\PriorityDownloadPendingCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4200"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.031037"	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\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\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 (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\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\NormalDownloadPendingCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.609747"	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\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
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\UploadMonthlyLanBytes = "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\DownloadMonthlyRateFrBps = "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\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\SwarmCount = "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\InternetConnectionCount = "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 = "4080"	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\DownloadMonthlyCdnBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyGroupBytes = "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\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\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\DownloadMonthlyInternetBytes = "0"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

2700 PING.EXE

pid	process
2700	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

18f84bdb542e635ac3ac945de6b5b98905fdddc5b2a70f7ad94b81867deb6bcc.exeTiWorker.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	3640	18f84bdb542e635ac3ac945de6b5b98905fdddc5b2a70f7ad94b81867deb6bcc.exe
Token: SeSecurityPrivilege	3816	TiWorker.exe
Token: SeRestorePrivilege	3816	TiWorker.exe
Token: SeBackupPrivilege	3816	TiWorker.exe
Token: SeBackupPrivilege	3816	TiWorker.exe
Token: SeRestorePrivilege	3816	TiWorker.exe
Token: SeSecurityPrivilege	3816	TiWorker.exe
Token: SeBackupPrivilege	3816	TiWorker.exe
Token: SeRestorePrivilege	3816	TiWorker.exe
Token: SeSecurityPrivilege	3816	TiWorker.exe
Token: SeBackupPrivilege	3816	TiWorker.exe
Token: SeRestorePrivilege	3816	TiWorker.exe
Token: SeSecurityPrivilege	3816	TiWorker.exe
Token: SeBackupPrivilege	3816	TiWorker.exe
Token: SeRestorePrivilege	3816	TiWorker.exe
Token: SeSecurityPrivilege	3816	TiWorker.exe
Token: SeBackupPrivilege	3816	TiWorker.exe
Token: SeRestorePrivilege	3816	TiWorker.exe
Token: SeSecurityPrivilege	3816	TiWorker.exe
Token: SeBackupPrivilege	3816	TiWorker.exe
Token: SeRestorePrivilege	3816	TiWorker.exe
Token: SeSecurityPrivilege	3816	TiWorker.exe
Token: SeBackupPrivilege	3816	TiWorker.exe
Token: SeRestorePrivilege	3816	TiWorker.exe
Token: SeSecurityPrivilege	3816	TiWorker.exe
Token: SeBackupPrivilege	3816	TiWorker.exe
Token: SeRestorePrivilege	3816	TiWorker.exe
Token: SeSecurityPrivilege	3816	TiWorker.exe
Token: SeBackupPrivilege	3816	TiWorker.exe
Token: SeRestorePrivilege	3816	TiWorker.exe
Token: SeSecurityPrivilege	3816	TiWorker.exe
Token: SeBackupPrivilege	3816	TiWorker.exe
Token: SeRestorePrivilege	3816	TiWorker.exe
Token: SeSecurityPrivilege	3816	TiWorker.exe
Token: SeBackupPrivilege	3816	TiWorker.exe
Token: SeRestorePrivilege	3816	TiWorker.exe
Token: SeSecurityPrivilege	3816	TiWorker.exe
Token: SeBackupPrivilege	3816	TiWorker.exe
Token: SeRestorePrivilege	3816	TiWorker.exe
Token: SeSecurityPrivilege	3816	TiWorker.exe
Token: SeBackupPrivilege	3816	TiWorker.exe
Token: SeRestorePrivilege	3816	TiWorker.exe
Token: SeSecurityPrivilege	3816	TiWorker.exe
Token: SeBackupPrivilege	3816	TiWorker.exe
Token: SeRestorePrivilege	3816	TiWorker.exe
Token: SeSecurityPrivilege	3816	TiWorker.exe
Token: SeBackupPrivilege	3816	TiWorker.exe
Token: SeRestorePrivilege	3816	TiWorker.exe
Token: SeSecurityPrivilege	3816	TiWorker.exe
Token: SeBackupPrivilege	3816	TiWorker.exe
Token: SeRestorePrivilege	3816	TiWorker.exe
Token: SeSecurityPrivilege	3816	TiWorker.exe
Token: SeBackupPrivilege	3816	TiWorker.exe
Token: SeRestorePrivilege	3816	TiWorker.exe
Token: SeSecurityPrivilege	3816	TiWorker.exe
Token: SeBackupPrivilege	3816	TiWorker.exe
Token: SeRestorePrivilege	3816	TiWorker.exe
Token: SeSecurityPrivilege	3816	TiWorker.exe
Token: SeBackupPrivilege	3816	TiWorker.exe
Token: SeRestorePrivilege	3816	TiWorker.exe
Token: SeSecurityPrivilege	3816	TiWorker.exe
Token: SeBackupPrivilege	3816	TiWorker.exe
Token: SeRestorePrivilege	3816	TiWorker.exe
Token: SeSecurityPrivilege	3816	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

18f84bdb542e635ac3ac945de6b5b98905fdddc5b2a70f7ad94b81867deb6bcc.execmd.exe

description	pid	process	target process
PID 3640 wrote to memory of 3560	3640	18f84bdb542e635ac3ac945de6b5b98905fdddc5b2a70f7ad94b81867deb6bcc.exe	MediaCenter.exe
PID 3640 wrote to memory of 3560	3640	18f84bdb542e635ac3ac945de6b5b98905fdddc5b2a70f7ad94b81867deb6bcc.exe	MediaCenter.exe
PID 3640 wrote to memory of 3560	3640	18f84bdb542e635ac3ac945de6b5b98905fdddc5b2a70f7ad94b81867deb6bcc.exe	MediaCenter.exe
PID 3640 wrote to memory of 2924	3640	18f84bdb542e635ac3ac945de6b5b98905fdddc5b2a70f7ad94b81867deb6bcc.exe	cmd.exe
PID 3640 wrote to memory of 2924	3640	18f84bdb542e635ac3ac945de6b5b98905fdddc5b2a70f7ad94b81867deb6bcc.exe	cmd.exe
PID 3640 wrote to memory of 2924	3640	18f84bdb542e635ac3ac945de6b5b98905fdddc5b2a70f7ad94b81867deb6bcc.exe	cmd.exe
PID 2924 wrote to memory of 2700	2924	cmd.exe	PING.EXE
PID 2924 wrote to memory of 2700	2924	cmd.exe	PING.EXE
PID 2924 wrote to memory of 2700	2924	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\18f84bdb542e635ac3ac945de6b5b98905fdddc5b2a70f7ad94b81867deb6bcc.exe
"C:\Users\Admin\AppData\Local\Temp\18f84bdb542e635ac3ac945de6b5b98905fdddc5b2a70f7ad94b81867deb6bcc.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3640

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:3560

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\18f84bdb542e635ac3ac945de6b5b98905fdddc5b2a70f7ad94b81867deb6bcc.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:2924

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:2700

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:408

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:2508

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:3816

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
c670644ea6993e39fee066b528a41356

SHA1
1a0ff4ffe17d2825380a750aa5640d23b9e7f657

SHA256
37ebf9521b6b3bf92717c2b88652a0dd423899461930d286a8145225e4f0dd05

SHA512
ed7b7e5a28e5b532309b1ae77134dd0b2164135afb2095ddc649de1e120505793a9aa0c6fecbc659b8aef5fbc70a8c1132634d8d2a3aa2145065c76df9e7c2ce

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

MD5
c670644ea6993e39fee066b528a41356

SHA1
1a0ff4ffe17d2825380a750aa5640d23b9e7f657

SHA256
37ebf9521b6b3bf92717c2b88652a0dd423899461930d286a8145225e4f0dd05

SHA512
ed7b7e5a28e5b532309b1ae77134dd0b2164135afb2095ddc649de1e120505793a9aa0c6fecbc659b8aef5fbc70a8c1132634d8d2a3aa2145065c76df9e7c2ce

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads