sakula | 131a33b6acf4b0c76a2141634dc9f80128df16fc861b9cb5a2ef2ad7336a4962

General

Target

131a33b6acf4b0c76a2141634dc9f80128df16fc861b9cb5a2ef2ad7336a4962.exe
Size

99KB
MD5

ecb1591b423246248a9988a38de0eee9
SHA1

d75b9d3ec42e80230450681cd5480a3bae3218e6
SHA256

131a33b6acf4b0c76a2141634dc9f80128df16fc861b9cb5a2ef2ad7336a4962
SHA512

6c6470b95a565aeec511f218911c1f3bf0b883e1d8a3e7892f6645eef37bd40b3443912a0441561d5918f86c87da59bfc93c457ed579346cda0c43bf55d187eb

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

1192 MediaCenter.exe

pid	process
1192	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:

131a33b6acf4b0c76a2141634dc9f80128df16fc861b9cb5a2ef2ad7336a4962.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	131a33b6acf4b0c76a2141634dc9f80128df16fc861b9cb5a2ef2ad7336a4962.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

131a33b6acf4b0c76a2141634dc9f80128df16fc861b9cb5a2ef2ad7336a4962.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"	131a33b6acf4b0c76a2141634dc9f80128df16fc861b9cb5a2ef2ad7336a4962.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 50 IoCs

Processes:

svchost.exe

description	ioc	process
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\Config\KVFileExpirationTime = "132892932785170266"	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\FrDownloadRatePct = "90"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "1.369856"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4076"	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\UploadMonthlyLanBytes = "0"	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\DownlinkUsageBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4288"	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\NormalDownloadPendingCount = "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\DownloadMonthlyLanBytes = "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\UplinkUsageBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4292"	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\Usage\DownloadMonthlyLinkLocalBytes = "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\MonthlyUploadRestriction = "0"	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 = "0.084175"	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\DownloadMonthlyCdnBytes = "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\UploadCount = "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\PriorityDownloadCount = "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\CDNConnectionCount = "0"	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\DownloadMonthlyGroupBytes = "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\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\NormalDownloadCount = "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\DownloadMonthlyRateBkCnt = "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
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\InternetConnectionCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "16.681542"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1724 PING.EXE

pid	process
1724	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

TiWorker.exe131a33b6acf4b0c76a2141634dc9f80128df16fc861b9cb5a2ef2ad7336a4962.exe

description	pid	process
Token: SeSecurityPrivilege	3824	TiWorker.exe
Token: SeRestorePrivilege	3824	TiWorker.exe
Token: SeBackupPrivilege	3824	TiWorker.exe
Token: SeIncBasePriorityPrivilege	1928	131a33b6acf4b0c76a2141634dc9f80128df16fc861b9cb5a2ef2ad7336a4962.exe
Token: SeBackupPrivilege	3824	TiWorker.exe
Token: SeRestorePrivilege	3824	TiWorker.exe
Token: SeSecurityPrivilege	3824	TiWorker.exe
Token: SeBackupPrivilege	3824	TiWorker.exe
Token: SeRestorePrivilege	3824	TiWorker.exe
Token: SeSecurityPrivilege	3824	TiWorker.exe
Token: SeBackupPrivilege	3824	TiWorker.exe
Token: SeRestorePrivilege	3824	TiWorker.exe
Token: SeSecurityPrivilege	3824	TiWorker.exe
Token: SeBackupPrivilege	3824	TiWorker.exe
Token: SeRestorePrivilege	3824	TiWorker.exe
Token: SeSecurityPrivilege	3824	TiWorker.exe
Token: SeBackupPrivilege	3824	TiWorker.exe
Token: SeRestorePrivilege	3824	TiWorker.exe
Token: SeSecurityPrivilege	3824	TiWorker.exe
Token: SeBackupPrivilege	3824	TiWorker.exe
Token: SeRestorePrivilege	3824	TiWorker.exe
Token: SeSecurityPrivilege	3824	TiWorker.exe
Token: SeBackupPrivilege	3824	TiWorker.exe
Token: SeRestorePrivilege	3824	TiWorker.exe
Token: SeSecurityPrivilege	3824	TiWorker.exe
Token: SeBackupPrivilege	3824	TiWorker.exe
Token: SeRestorePrivilege	3824	TiWorker.exe
Token: SeSecurityPrivilege	3824	TiWorker.exe
Token: SeBackupPrivilege	3824	TiWorker.exe
Token: SeRestorePrivilege	3824	TiWorker.exe
Token: SeSecurityPrivilege	3824	TiWorker.exe
Token: SeBackupPrivilege	3824	TiWorker.exe
Token: SeRestorePrivilege	3824	TiWorker.exe
Token: SeSecurityPrivilege	3824	TiWorker.exe
Token: SeBackupPrivilege	3824	TiWorker.exe
Token: SeRestorePrivilege	3824	TiWorker.exe
Token: SeSecurityPrivilege	3824	TiWorker.exe
Token: SeBackupPrivilege	3824	TiWorker.exe
Token: SeRestorePrivilege	3824	TiWorker.exe
Token: SeSecurityPrivilege	3824	TiWorker.exe
Token: SeBackupPrivilege	3824	TiWorker.exe
Token: SeRestorePrivilege	3824	TiWorker.exe
Token: SeSecurityPrivilege	3824	TiWorker.exe
Token: SeBackupPrivilege	3824	TiWorker.exe
Token: SeRestorePrivilege	3824	TiWorker.exe
Token: SeSecurityPrivilege	3824	TiWorker.exe
Token: SeBackupPrivilege	3824	TiWorker.exe
Token: SeRestorePrivilege	3824	TiWorker.exe
Token: SeSecurityPrivilege	3824	TiWorker.exe
Token: SeBackupPrivilege	3824	TiWorker.exe
Token: SeRestorePrivilege	3824	TiWorker.exe
Token: SeSecurityPrivilege	3824	TiWorker.exe
Token: SeBackupPrivilege	3824	TiWorker.exe
Token: SeRestorePrivilege	3824	TiWorker.exe
Token: SeSecurityPrivilege	3824	TiWorker.exe
Token: SeBackupPrivilege	3824	TiWorker.exe
Token: SeRestorePrivilege	3824	TiWorker.exe
Token: SeSecurityPrivilege	3824	TiWorker.exe
Token: SeBackupPrivilege	3824	TiWorker.exe
Token: SeRestorePrivilege	3824	TiWorker.exe
Token: SeSecurityPrivilege	3824	TiWorker.exe
Token: SeBackupPrivilege	3824	TiWorker.exe
Token: SeRestorePrivilege	3824	TiWorker.exe
Token: SeSecurityPrivilege	3824	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

131a33b6acf4b0c76a2141634dc9f80128df16fc861b9cb5a2ef2ad7336a4962.execmd.exe

description	pid	process	target process
PID 1928 wrote to memory of 1192	1928	131a33b6acf4b0c76a2141634dc9f80128df16fc861b9cb5a2ef2ad7336a4962.exe	MediaCenter.exe
PID 1928 wrote to memory of 1192	1928	131a33b6acf4b0c76a2141634dc9f80128df16fc861b9cb5a2ef2ad7336a4962.exe	MediaCenter.exe
PID 1928 wrote to memory of 1192	1928	131a33b6acf4b0c76a2141634dc9f80128df16fc861b9cb5a2ef2ad7336a4962.exe	MediaCenter.exe
PID 1928 wrote to memory of 2492	1928	131a33b6acf4b0c76a2141634dc9f80128df16fc861b9cb5a2ef2ad7336a4962.exe	cmd.exe
PID 1928 wrote to memory of 2492	1928	131a33b6acf4b0c76a2141634dc9f80128df16fc861b9cb5a2ef2ad7336a4962.exe	cmd.exe
PID 1928 wrote to memory of 2492	1928	131a33b6acf4b0c76a2141634dc9f80128df16fc861b9cb5a2ef2ad7336a4962.exe	cmd.exe
PID 2492 wrote to memory of 1724	2492	cmd.exe	PING.EXE
PID 2492 wrote to memory of 1724	2492	cmd.exe	PING.EXE
PID 2492 wrote to memory of 1724	2492	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\131a33b6acf4b0c76a2141634dc9f80128df16fc861b9cb5a2ef2ad7336a4962.exe
"C:\Users\Admin\AppData\Local\Temp\131a33b6acf4b0c76a2141634dc9f80128df16fc861b9cb5a2ef2ad7336a4962.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1928

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:1192

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\131a33b6acf4b0c76a2141634dc9f80128df16fc861b9cb5a2ef2ad7336a4962.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:2492

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:1724

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:2236

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:3824

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
41076c92b015edc960cb93e605277168

SHA1
bf2b45ca0eda6d83e6284fac5c7e41b4ef61bdfc

SHA256
e40c533838b556023d9ed7e149ceca746bbec1f1999af523c27380a02c1121d7

SHA512
6a5b3213dc9180d4ace4a680455636170ba2a7936e2899c1ed88fede2b0cb784f8a825a1a7585d2cf4c2b0048c5bd5ecb2c74311d8d2f6e3e215a34a6dd02776

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

MD5
41076c92b015edc960cb93e605277168

SHA1
bf2b45ca0eda6d83e6284fac5c7e41b4ef61bdfc

SHA256
e40c533838b556023d9ed7e149ceca746bbec1f1999af523c27380a02c1121d7

SHA512
6a5b3213dc9180d4ace4a680455636170ba2a7936e2899c1ed88fede2b0cb784f8a825a1a7585d2cf4c2b0048c5bd5ecb2c74311d8d2f6e3e215a34a6dd02776

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads