sakula | 109aa520afaf5c10697f530d34e94d6d176b972883c3f4a9f0782d013bf6f74f

General

Target

109aa520afaf5c10697f530d34e94d6d176b972883c3f4a9f0782d013bf6f74f.exe
Size

58KB
MD5

27c540bfe2fb299c114dd529209f9657
SHA1

2fb439e1c405b558cbbf8eeb372fedac88bb4195
SHA256

109aa520afaf5c10697f530d34e94d6d176b972883c3f4a9f0782d013bf6f74f
SHA512

d01c32e19b3d7b4cee4400512890bb1b974ac2d0dc6d32cfbedd6ec29cfee57e4cb9d3ddfb3e1991fd2b28351101c75ad82cfff74f7bc7c2868928053d2d14d4

Score

10^/10

sakula persistence rat trojan

Malware Config

Signatures

Sakula
Sakula is a remote access trojan with various capabilities.
trojan rat sakula
Executes dropped EXE 1 IoCs

Processes:

MediaCenter.exe

pid process

1632 MediaCenter.exe

pid	process
1632	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:

109aa520afaf5c10697f530d34e94d6d176b972883c3f4a9f0782d013bf6f74f.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	109aa520afaf5c10697f530d34e94d6d176b972883c3f4a9f0782d013bf6f74f.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

109aa520afaf5c10697f530d34e94d6d176b972883c3f4a9f0782d013bf6f74f.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"	109aa520afaf5c10697f530d34e94d6d176b972883c3f4a9f0782d013bf6f74f.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\WinSxS\pending.xml	TiWorker.exe
File opened for modification	C:\Windows\Logs\CBS\CBS.log	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 51 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\UplinkBps = "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\UploadMonthlyInternetBytes = "0"	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\LANConnectionCount = "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 (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4072"	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\InternetConnectionCount = "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\SwarmCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.028409"	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\UploadMonthlyLanBytes = "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\DownloadMonthlyRateBkCnt = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132892964592001391"	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
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\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
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\DownloadMonthlyRateBkBps = "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\PriorityDownloadCount = "0"	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\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\DownloadMonthlyCacheHostBytes = "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\PeerInfoCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.331614"	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\Config\DownloadMode_BackCompat = "1"	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\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\LinkLocalConnectionCount = "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\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 (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 = "4100"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.017775"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "3988"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1580 PING.EXE

pid	process
1580	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

TiWorker.exe

description	pid	process
Token: SeSecurityPrivilege	1556	TiWorker.exe
Token: SeRestorePrivilege	1556	TiWorker.exe
Token: SeBackupPrivilege	1556	TiWorker.exe
Token: SeBackupPrivilege	1556	TiWorker.exe
Token: SeRestorePrivilege	1556	TiWorker.exe
Token: SeSecurityPrivilege	1556	TiWorker.exe
Token: SeBackupPrivilege	1556	TiWorker.exe
Token: SeRestorePrivilege	1556	TiWorker.exe
Token: SeSecurityPrivilege	1556	TiWorker.exe
Token: SeBackupPrivilege	1556	TiWorker.exe
Token: SeRestorePrivilege	1556	TiWorker.exe
Token: SeSecurityPrivilege	1556	TiWorker.exe
Token: SeBackupPrivilege	1556	TiWorker.exe
Token: SeRestorePrivilege	1556	TiWorker.exe
Token: SeSecurityPrivilege	1556	TiWorker.exe
Token: SeBackupPrivilege	1556	TiWorker.exe
Token: SeRestorePrivilege	1556	TiWorker.exe
Token: SeSecurityPrivilege	1556	TiWorker.exe
Token: SeBackupPrivilege	1556	TiWorker.exe
Token: SeRestorePrivilege	1556	TiWorker.exe
Token: SeSecurityPrivilege	1556	TiWorker.exe
Token: SeBackupPrivilege	1556	TiWorker.exe
Token: SeRestorePrivilege	1556	TiWorker.exe
Token: SeSecurityPrivilege	1556	TiWorker.exe
Token: SeBackupPrivilege	1556	TiWorker.exe
Token: SeRestorePrivilege	1556	TiWorker.exe
Token: SeSecurityPrivilege	1556	TiWorker.exe
Token: SeBackupPrivilege	1556	TiWorker.exe
Token: SeRestorePrivilege	1556	TiWorker.exe
Token: SeSecurityPrivilege	1556	TiWorker.exe
Token: SeBackupPrivilege	1556	TiWorker.exe
Token: SeRestorePrivilege	1556	TiWorker.exe
Token: SeSecurityPrivilege	1556	TiWorker.exe
Token: SeBackupPrivilege	1556	TiWorker.exe
Token: SeRestorePrivilege	1556	TiWorker.exe
Token: SeSecurityPrivilege	1556	TiWorker.exe
Token: SeBackupPrivilege	1556	TiWorker.exe
Token: SeRestorePrivilege	1556	TiWorker.exe
Token: SeSecurityPrivilege	1556	TiWorker.exe
Token: SeBackupPrivilege	1556	TiWorker.exe
Token: SeRestorePrivilege	1556	TiWorker.exe
Token: SeSecurityPrivilege	1556	TiWorker.exe
Token: SeBackupPrivilege	1556	TiWorker.exe
Token: SeRestorePrivilege	1556	TiWorker.exe
Token: SeSecurityPrivilege	1556	TiWorker.exe
Token: SeBackupPrivilege	1556	TiWorker.exe
Token: SeRestorePrivilege	1556	TiWorker.exe
Token: SeSecurityPrivilege	1556	TiWorker.exe
Token: SeBackupPrivilege	1556	TiWorker.exe
Token: SeRestorePrivilege	1556	TiWorker.exe
Token: SeSecurityPrivilege	1556	TiWorker.exe
Token: SeBackupPrivilege	1556	TiWorker.exe
Token: SeRestorePrivilege	1556	TiWorker.exe
Token: SeSecurityPrivilege	1556	TiWorker.exe
Token: SeBackupPrivilege	1556	TiWorker.exe
Token: SeRestorePrivilege	1556	TiWorker.exe
Token: SeSecurityPrivilege	1556	TiWorker.exe
Token: SeBackupPrivilege	1556	TiWorker.exe
Token: SeRestorePrivilege	1556	TiWorker.exe
Token: SeSecurityPrivilege	1556	TiWorker.exe
Token: SeBackupPrivilege	1556	TiWorker.exe
Token: SeRestorePrivilege	1556	TiWorker.exe
Token: SeSecurityPrivilege	1556	TiWorker.exe
Token: SeBackupPrivilege	1556	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

109aa520afaf5c10697f530d34e94d6d176b972883c3f4a9f0782d013bf6f74f.execmd.exe

description	pid	process	target process
PID 1896 wrote to memory of 1632	1896	109aa520afaf5c10697f530d34e94d6d176b972883c3f4a9f0782d013bf6f74f.exe	MediaCenter.exe
PID 1896 wrote to memory of 1632	1896	109aa520afaf5c10697f530d34e94d6d176b972883c3f4a9f0782d013bf6f74f.exe	MediaCenter.exe
PID 1896 wrote to memory of 1632	1896	109aa520afaf5c10697f530d34e94d6d176b972883c3f4a9f0782d013bf6f74f.exe	MediaCenter.exe
PID 1896 wrote to memory of 2896	1896	109aa520afaf5c10697f530d34e94d6d176b972883c3f4a9f0782d013bf6f74f.exe	cmd.exe
PID 1896 wrote to memory of 2896	1896	109aa520afaf5c10697f530d34e94d6d176b972883c3f4a9f0782d013bf6f74f.exe	cmd.exe
PID 1896 wrote to memory of 2896	1896	109aa520afaf5c10697f530d34e94d6d176b972883c3f4a9f0782d013bf6f74f.exe	cmd.exe
PID 2896 wrote to memory of 1580	2896	cmd.exe	PING.EXE
PID 2896 wrote to memory of 1580	2896	cmd.exe	PING.EXE
PID 2896 wrote to memory of 1580	2896	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\109aa520afaf5c10697f530d34e94d6d176b972883c3f4a9f0782d013bf6f74f.exe
"C:\Users\Admin\AppData\Local\Temp\109aa520afaf5c10697f530d34e94d6d176b972883c3f4a9f0782d013bf6f74f.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1896

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:1632

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\109aa520afaf5c10697f530d34e94d6d176b972883c3f4a9f0782d013bf6f74f.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:2896

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:1580

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:3120

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:1540

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:1556

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
d4fb2fe791c91f2b367afeb2ce345098

SHA1
36a741a01e612d0bd744db81ed688316a488321f

SHA256
e23c1b59ffa38fe0de16e287a676633d37c1cbfc01617b4bedb2d084191e7903

SHA512
bea49260b30a1ca1d5c4d12d1e8d46d5b09c7359dbf8147e20e06d5d36baa804adae07d42680ca247e3094eaec9675d0faff6907c76311afeb39edf38c2746e0

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

MD5
d4fb2fe791c91f2b367afeb2ce345098

SHA1
36a741a01e612d0bd744db81ed688316a488321f

SHA256
e23c1b59ffa38fe0de16e287a676633d37c1cbfc01617b4bedb2d084191e7903

SHA512
bea49260b30a1ca1d5c4d12d1e8d46d5b09c7359dbf8147e20e06d5d36baa804adae07d42680ca247e3094eaec9675d0faff6907c76311afeb39edf38c2746e0

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads