sakula | 17771e762469afcea3da9808a201b1dcfc5f75a03d611017861cf72a642318ba

General

Target

17771e762469afcea3da9808a201b1dcfc5f75a03d611017861cf72a642318ba.exe
Size

99KB
MD5

79e088e3060c4949445814ffb40170b0
SHA1

3d48ec0974e68ec9bc14e3fe13aefae46a14c78d
SHA256

17771e762469afcea3da9808a201b1dcfc5f75a03d611017861cf72a642318ba
SHA512

6be3005f17421180ee294b147fe53ea8cd3e73e58be6a495150016a7ec05c98d98333ccd911944040bc7f24c8e67cfaa8888f071ea9991ea4b1666e981b7f7e4

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

2756 MediaCenter.exe

pid	process
2756	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:

17771e762469afcea3da9808a201b1dcfc5f75a03d611017861cf72a642318ba.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	17771e762469afcea3da9808a201b1dcfc5f75a03d611017861cf72a642318ba.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

17771e762469afcea3da9808a201b1dcfc5f75a03d611017861cf72a642318ba.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"	17771e762469afcea3da9808a201b1dcfc5f75a03d611017861cf72a642318ba.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 49 IoCs

Processes:

svchost.exe

description	ioc	process
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\UploadMonthlyLanBytes = "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\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\Config\KVFileExpirationTime = "132892867889862783"	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\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\DownloadMonthlyGroupBytes = "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\UplinkBps = "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\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 (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "2.898665"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4312"	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\SwarmCount = "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\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\FrDownloadRatePct = "90"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.000000"	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\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\DownloadMonthlyRateBkCnt = "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\DownloadMonthlyRateFrCnt = "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\UplinkUsageBps = "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\NormalDownloadPendingCount = "0"	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\DownloadMonthlyLanBytes = "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\LinkLocalConnectionCount = "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 = "4136"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "1.265834"	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\Config\DODownloadMode = "1"	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 (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

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

3388 PING.EXE

pid	process
3388	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

17771e762469afcea3da9808a201b1dcfc5f75a03d611017861cf72a642318ba.exeTiWorker.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	3720	17771e762469afcea3da9808a201b1dcfc5f75a03d611017861cf72a642318ba.exe
Token: SeSecurityPrivilege	2208	TiWorker.exe
Token: SeRestorePrivilege	2208	TiWorker.exe
Token: SeBackupPrivilege	2208	TiWorker.exe
Token: SeBackupPrivilege	2208	TiWorker.exe
Token: SeRestorePrivilege	2208	TiWorker.exe
Token: SeSecurityPrivilege	2208	TiWorker.exe
Token: SeBackupPrivilege	2208	TiWorker.exe
Token: SeRestorePrivilege	2208	TiWorker.exe
Token: SeSecurityPrivilege	2208	TiWorker.exe
Token: SeBackupPrivilege	2208	TiWorker.exe
Token: SeRestorePrivilege	2208	TiWorker.exe
Token: SeSecurityPrivilege	2208	TiWorker.exe
Token: SeBackupPrivilege	2208	TiWorker.exe
Token: SeRestorePrivilege	2208	TiWorker.exe
Token: SeSecurityPrivilege	2208	TiWorker.exe
Token: SeBackupPrivilege	2208	TiWorker.exe
Token: SeRestorePrivilege	2208	TiWorker.exe
Token: SeSecurityPrivilege	2208	TiWorker.exe
Token: SeBackupPrivilege	2208	TiWorker.exe
Token: SeRestorePrivilege	2208	TiWorker.exe
Token: SeSecurityPrivilege	2208	TiWorker.exe
Token: SeBackupPrivilege	2208	TiWorker.exe
Token: SeRestorePrivilege	2208	TiWorker.exe
Token: SeSecurityPrivilege	2208	TiWorker.exe
Token: SeBackupPrivilege	2208	TiWorker.exe
Token: SeRestorePrivilege	2208	TiWorker.exe
Token: SeSecurityPrivilege	2208	TiWorker.exe
Token: SeBackupPrivilege	2208	TiWorker.exe
Token: SeRestorePrivilege	2208	TiWorker.exe
Token: SeSecurityPrivilege	2208	TiWorker.exe
Token: SeBackupPrivilege	2208	TiWorker.exe
Token: SeRestorePrivilege	2208	TiWorker.exe
Token: SeSecurityPrivilege	2208	TiWorker.exe
Token: SeBackupPrivilege	2208	TiWorker.exe
Token: SeRestorePrivilege	2208	TiWorker.exe
Token: SeSecurityPrivilege	2208	TiWorker.exe
Token: SeBackupPrivilege	2208	TiWorker.exe
Token: SeRestorePrivilege	2208	TiWorker.exe
Token: SeSecurityPrivilege	2208	TiWorker.exe
Token: SeBackupPrivilege	2208	TiWorker.exe
Token: SeRestorePrivilege	2208	TiWorker.exe
Token: SeSecurityPrivilege	2208	TiWorker.exe
Token: SeBackupPrivilege	2208	TiWorker.exe
Token: SeRestorePrivilege	2208	TiWorker.exe
Token: SeSecurityPrivilege	2208	TiWorker.exe
Token: SeBackupPrivilege	2208	TiWorker.exe
Token: SeRestorePrivilege	2208	TiWorker.exe
Token: SeSecurityPrivilege	2208	TiWorker.exe
Token: SeBackupPrivilege	2208	TiWorker.exe
Token: SeRestorePrivilege	2208	TiWorker.exe
Token: SeSecurityPrivilege	2208	TiWorker.exe
Token: SeBackupPrivilege	2208	TiWorker.exe
Token: SeRestorePrivilege	2208	TiWorker.exe
Token: SeSecurityPrivilege	2208	TiWorker.exe
Token: SeBackupPrivilege	2208	TiWorker.exe
Token: SeRestorePrivilege	2208	TiWorker.exe
Token: SeSecurityPrivilege	2208	TiWorker.exe
Token: SeBackupPrivilege	2208	TiWorker.exe
Token: SeRestorePrivilege	2208	TiWorker.exe
Token: SeSecurityPrivilege	2208	TiWorker.exe
Token: SeBackupPrivilege	2208	TiWorker.exe
Token: SeRestorePrivilege	2208	TiWorker.exe
Token: SeSecurityPrivilege	2208	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

17771e762469afcea3da9808a201b1dcfc5f75a03d611017861cf72a642318ba.execmd.exe

description	pid	process	target process
PID 3720 wrote to memory of 2756	3720	17771e762469afcea3da9808a201b1dcfc5f75a03d611017861cf72a642318ba.exe	MediaCenter.exe
PID 3720 wrote to memory of 2756	3720	17771e762469afcea3da9808a201b1dcfc5f75a03d611017861cf72a642318ba.exe	MediaCenter.exe
PID 3720 wrote to memory of 2756	3720	17771e762469afcea3da9808a201b1dcfc5f75a03d611017861cf72a642318ba.exe	MediaCenter.exe
PID 3720 wrote to memory of 3948	3720	17771e762469afcea3da9808a201b1dcfc5f75a03d611017861cf72a642318ba.exe	cmd.exe
PID 3720 wrote to memory of 3948	3720	17771e762469afcea3da9808a201b1dcfc5f75a03d611017861cf72a642318ba.exe	cmd.exe
PID 3720 wrote to memory of 3948	3720	17771e762469afcea3da9808a201b1dcfc5f75a03d611017861cf72a642318ba.exe	cmd.exe
PID 3948 wrote to memory of 3388	3948	cmd.exe	PING.EXE
PID 3948 wrote to memory of 3388	3948	cmd.exe	PING.EXE
PID 3948 wrote to memory of 3388	3948	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\17771e762469afcea3da9808a201b1dcfc5f75a03d611017861cf72a642318ba.exe
"C:\Users\Admin\AppData\Local\Temp\17771e762469afcea3da9808a201b1dcfc5f75a03d611017861cf72a642318ba.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3720

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:2756

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\17771e762469afcea3da9808a201b1dcfc5f75a03d611017861cf72a642318ba.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3948

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:3388

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:2188

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:3900

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:2208

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
bc5ecf149fb26258d5dcf48d57785f32

SHA1
fd50959a87fccc9021c4e07891357a7d86da179e

SHA256
321e6630b9206c6c8119b8a436866650b70975f4af7738a1cf4cbd471b8c4bfb

SHA512
e0423b0b8fa5d3cc844504f72f904521c3c298bfb1976c555688d7fc2263ba3cac2ac14a698a460af5bd6e31689cb440bfb3a4567fd62205fd0a4c98e9de8993

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

MD5
bc5ecf149fb26258d5dcf48d57785f32

SHA1
fd50959a87fccc9021c4e07891357a7d86da179e

SHA256
321e6630b9206c6c8119b8a436866650b70975f4af7738a1cf4cbd471b8c4bfb

SHA512
e0423b0b8fa5d3cc844504f72f904521c3c298bfb1976c555688d7fc2263ba3cac2ac14a698a460af5bd6e31689cb440bfb3a4567fd62205fd0a4c98e9de8993

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads