sakula | 136c7708bc496fb5716266eb1ee00700b073c985d09af92f2f3d726a0a4d7985

General

Target

136c7708bc496fb5716266eb1ee00700b073c985d09af92f2f3d726a0a4d7985.exe
Size

99KB
MD5

d73618d3354c4e46478c25837686666b
SHA1

d6ea136916898e031309aebf7c4459baeec4dc9b
SHA256

136c7708bc496fb5716266eb1ee00700b073c985d09af92f2f3d726a0a4d7985
SHA512

7ee8d1a908d735426a5f767087d8e754381d0d031dd6d0075b19c36ea9dd7220344b94b5a5ee3abe3565b2a0e26c7178d1a03ba81ae82411dce3f3f26ff87f63

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

3232 MediaCenter.exe

pid	process
3232	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:

136c7708bc496fb5716266eb1ee00700b073c985d09af92f2f3d726a0a4d7985.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	136c7708bc496fb5716266eb1ee00700b073c985d09af92f2f3d726a0a4d7985.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

136c7708bc496fb5716266eb1ee00700b073c985d09af92f2f3d726a0a4d7985.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"	136c7708bc496fb5716266eb1ee00700b073c985d09af92f2f3d726a0a4d7985.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 45 IoCs

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132892928813223761"	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\UploadRatePct = "100"	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 = "1.004024"	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\DownloadMonthlyRateBkCnt = "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\PriorityDownloadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4120"	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\DownloadMonthlyLinkLocalBytes = "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\InternetConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadCount = "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\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\UploadCount = "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\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\DownloadMonthlyRateFrCnt = "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\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\GroupConnectionCount = "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\UploadMonthlyLanBytes = "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\DownlinkBps = "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\BkDownloadRatePct = "45"	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\DownloadMonthlyLanBytes = "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\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\UploadMonthlyInternetBytes = "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\PriorityDownloadPendingCount = "0"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

3192 PING.EXE

pid	process
3192	PING.EXE

Suspicious use of AdjustPrivilegeToken 34 IoCs

Processes:

136c7708bc496fb5716266eb1ee00700b073c985d09af92f2f3d726a0a4d7985.exeTiWorker.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	2840	136c7708bc496fb5716266eb1ee00700b073c985d09af92f2f3d726a0a4d7985.exe
Token: SeSecurityPrivilege	2268	TiWorker.exe
Token: SeRestorePrivilege	2268	TiWorker.exe
Token: SeBackupPrivilege	2268	TiWorker.exe
Token: SeBackupPrivilege	2268	TiWorker.exe
Token: SeRestorePrivilege	2268	TiWorker.exe
Token: SeSecurityPrivilege	2268	TiWorker.exe
Token: SeBackupPrivilege	2268	TiWorker.exe
Token: SeRestorePrivilege	2268	TiWorker.exe
Token: SeSecurityPrivilege	2268	TiWorker.exe
Token: SeBackupPrivilege	2268	TiWorker.exe
Token: SeRestorePrivilege	2268	TiWorker.exe
Token: SeSecurityPrivilege	2268	TiWorker.exe
Token: SeBackupPrivilege	2268	TiWorker.exe
Token: SeRestorePrivilege	2268	TiWorker.exe
Token: SeSecurityPrivilege	2268	TiWorker.exe
Token: SeBackupPrivilege	2268	TiWorker.exe
Token: SeRestorePrivilege	2268	TiWorker.exe
Token: SeSecurityPrivilege	2268	TiWorker.exe
Token: SeBackupPrivilege	2268	TiWorker.exe
Token: SeRestorePrivilege	2268	TiWorker.exe
Token: SeSecurityPrivilege	2268	TiWorker.exe
Token: SeBackupPrivilege	2268	TiWorker.exe
Token: SeRestorePrivilege	2268	TiWorker.exe
Token: SeSecurityPrivilege	2268	TiWorker.exe
Token: SeBackupPrivilege	2268	TiWorker.exe
Token: SeRestorePrivilege	2268	TiWorker.exe
Token: SeSecurityPrivilege	2268	TiWorker.exe
Token: SeBackupPrivilege	2268	TiWorker.exe
Token: SeRestorePrivilege	2268	TiWorker.exe
Token: SeSecurityPrivilege	2268	TiWorker.exe
Token: SeBackupPrivilege	2268	TiWorker.exe
Token: SeRestorePrivilege	2268	TiWorker.exe
Token: SeSecurityPrivilege	2268	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

136c7708bc496fb5716266eb1ee00700b073c985d09af92f2f3d726a0a4d7985.execmd.exe

description	pid	process	target process
PID 2840 wrote to memory of 3232	2840	136c7708bc496fb5716266eb1ee00700b073c985d09af92f2f3d726a0a4d7985.exe	MediaCenter.exe
PID 2840 wrote to memory of 3232	2840	136c7708bc496fb5716266eb1ee00700b073c985d09af92f2f3d726a0a4d7985.exe	MediaCenter.exe
PID 2840 wrote to memory of 3232	2840	136c7708bc496fb5716266eb1ee00700b073c985d09af92f2f3d726a0a4d7985.exe	MediaCenter.exe
PID 2840 wrote to memory of 2144	2840	136c7708bc496fb5716266eb1ee00700b073c985d09af92f2f3d726a0a4d7985.exe	cmd.exe
PID 2840 wrote to memory of 2144	2840	136c7708bc496fb5716266eb1ee00700b073c985d09af92f2f3d726a0a4d7985.exe	cmd.exe
PID 2840 wrote to memory of 2144	2840	136c7708bc496fb5716266eb1ee00700b073c985d09af92f2f3d726a0a4d7985.exe	cmd.exe
PID 2144 wrote to memory of 3192	2144	cmd.exe	PING.EXE
PID 2144 wrote to memory of 3192	2144	cmd.exe	PING.EXE
PID 2144 wrote to memory of 3192	2144	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\136c7708bc496fb5716266eb1ee00700b073c985d09af92f2f3d726a0a4d7985.exe
"C:\Users\Admin\AppData\Local\Temp\136c7708bc496fb5716266eb1ee00700b073c985d09af92f2f3d726a0a4d7985.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2840

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:3232

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\136c7708bc496fb5716266eb1ee00700b073c985d09af92f2f3d726a0a4d7985.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:2144

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:3192

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:2684

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:3144

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:2268

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
2508d2e8e7b5ec8e9ab5060aa3ef1ca0

SHA1
a3e7d5c579747835a8b73e9c84a6908878524293

SHA256
1c40683bb7f6c99b98d6a26319755ec2154d7bdf327c30a17212d465d7facb6b

SHA512
6777e064019e9f3d098f53cd5a98256c80a33e7ad11cc1f497972a898770775768e52381e1979e2372613483cd4217fe4b28d952ca8190905fd4b7ccf0fb58ad

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

MD5
2508d2e8e7b5ec8e9ab5060aa3ef1ca0

SHA1
a3e7d5c579747835a8b73e9c84a6908878524293

SHA256
1c40683bb7f6c99b98d6a26319755ec2154d7bdf327c30a17212d465d7facb6b

SHA512
6777e064019e9f3d098f53cd5a98256c80a33e7ad11cc1f497972a898770775768e52381e1979e2372613483cd4217fe4b28d952ca8190905fd4b7ccf0fb58ad

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads