sakula | 03a4b5f75ef9e6996373c932e61b60e8764a5df1f4bc3c8614dec6223b26ee41

General

Target

03a4b5f75ef9e6996373c932e61b60e8764a5df1f4bc3c8614dec6223b26ee41.exe
Size

36KB
MD5

b291781647ecf62e7509cc6daae4556c
SHA1

97b648a0f70994f919c5abb91e5f0596eab4044f
SHA256

03a4b5f75ef9e6996373c932e61b60e8764a5df1f4bc3c8614dec6223b26ee41
SHA512

3c28a298d61b542e56507b8eae739410879c7af4a7c31d916ed5d35b332ac3a12b114468d3765d6d29d7b59b0900faa57b4adf3cd8a64702d415aa1f9b634559

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

4048 MediaCenter.exe

pid	process
4048	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:

03a4b5f75ef9e6996373c932e61b60e8764a5df1f4bc3c8614dec6223b26ee41.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	03a4b5f75ef9e6996373c932e61b60e8764a5df1f4bc3c8614dec6223b26ee41.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

03a4b5f75ef9e6996373c932e61b60e8764a5df1f4bc3c8614dec6223b26ee41.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"	03a4b5f75ef9e6996373c932e61b60e8764a5df1f4bc3c8614dec6223b26ee41.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 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\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\DownloadMonthlyCacheHostBytes = "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\PriorityDownloadPendingCount = "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\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\GroupConnectionCount = "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\NormalDownloadPendingCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "5.681447"	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\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 (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\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\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\DownloadMonthlyCdnBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132893177558601566"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4116"	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\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\InternetConnectionCount = "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\DownloadMonthlyLinkLocalBytes = "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\LANConnectionCount = "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\MonthlyUploadRestriction = "0"	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\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\DownlinkUsageBps = "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\UploadRatePct = "100"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "1.482488"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4304"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "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\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\CDNConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadCount = "0"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

3092 PING.EXE

pid	process
3092	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

03a4b5f75ef9e6996373c932e61b60e8764a5df1f4bc3c8614dec6223b26ee41.exeTiWorker.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	2296	03a4b5f75ef9e6996373c932e61b60e8764a5df1f4bc3c8614dec6223b26ee41.exe
Token: SeSecurityPrivilege	1964	TiWorker.exe
Token: SeRestorePrivilege	1964	TiWorker.exe
Token: SeBackupPrivilege	1964	TiWorker.exe
Token: SeBackupPrivilege	1964	TiWorker.exe
Token: SeRestorePrivilege	1964	TiWorker.exe
Token: SeSecurityPrivilege	1964	TiWorker.exe
Token: SeBackupPrivilege	1964	TiWorker.exe
Token: SeRestorePrivilege	1964	TiWorker.exe
Token: SeSecurityPrivilege	1964	TiWorker.exe
Token: SeBackupPrivilege	1964	TiWorker.exe
Token: SeRestorePrivilege	1964	TiWorker.exe
Token: SeSecurityPrivilege	1964	TiWorker.exe
Token: SeBackupPrivilege	1964	TiWorker.exe
Token: SeRestorePrivilege	1964	TiWorker.exe
Token: SeSecurityPrivilege	1964	TiWorker.exe
Token: SeBackupPrivilege	1964	TiWorker.exe
Token: SeRestorePrivilege	1964	TiWorker.exe
Token: SeSecurityPrivilege	1964	TiWorker.exe
Token: SeBackupPrivilege	1964	TiWorker.exe
Token: SeRestorePrivilege	1964	TiWorker.exe
Token: SeSecurityPrivilege	1964	TiWorker.exe
Token: SeBackupPrivilege	1964	TiWorker.exe
Token: SeRestorePrivilege	1964	TiWorker.exe
Token: SeSecurityPrivilege	1964	TiWorker.exe
Token: SeBackupPrivilege	1964	TiWorker.exe
Token: SeRestorePrivilege	1964	TiWorker.exe
Token: SeSecurityPrivilege	1964	TiWorker.exe
Token: SeBackupPrivilege	1964	TiWorker.exe
Token: SeRestorePrivilege	1964	TiWorker.exe
Token: SeSecurityPrivilege	1964	TiWorker.exe
Token: SeBackupPrivilege	1964	TiWorker.exe
Token: SeRestorePrivilege	1964	TiWorker.exe
Token: SeSecurityPrivilege	1964	TiWorker.exe
Token: SeBackupPrivilege	1964	TiWorker.exe
Token: SeRestorePrivilege	1964	TiWorker.exe
Token: SeSecurityPrivilege	1964	TiWorker.exe
Token: SeBackupPrivilege	1964	TiWorker.exe
Token: SeRestorePrivilege	1964	TiWorker.exe
Token: SeSecurityPrivilege	1964	TiWorker.exe
Token: SeBackupPrivilege	1964	TiWorker.exe
Token: SeRestorePrivilege	1964	TiWorker.exe
Token: SeSecurityPrivilege	1964	TiWorker.exe
Token: SeBackupPrivilege	1964	TiWorker.exe
Token: SeRestorePrivilege	1964	TiWorker.exe
Token: SeSecurityPrivilege	1964	TiWorker.exe
Token: SeBackupPrivilege	1964	TiWorker.exe
Token: SeRestorePrivilege	1964	TiWorker.exe
Token: SeSecurityPrivilege	1964	TiWorker.exe
Token: SeBackupPrivilege	1964	TiWorker.exe
Token: SeRestorePrivilege	1964	TiWorker.exe
Token: SeSecurityPrivilege	1964	TiWorker.exe
Token: SeBackupPrivilege	1964	TiWorker.exe
Token: SeRestorePrivilege	1964	TiWorker.exe
Token: SeSecurityPrivilege	1964	TiWorker.exe
Token: SeBackupPrivilege	1964	TiWorker.exe
Token: SeRestorePrivilege	1964	TiWorker.exe
Token: SeSecurityPrivilege	1964	TiWorker.exe
Token: SeBackupPrivilege	1964	TiWorker.exe
Token: SeRestorePrivilege	1964	TiWorker.exe
Token: SeSecurityPrivilege	1964	TiWorker.exe
Token: SeBackupPrivilege	1964	TiWorker.exe
Token: SeRestorePrivilege	1964	TiWorker.exe
Token: SeSecurityPrivilege	1964	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

03a4b5f75ef9e6996373c932e61b60e8764a5df1f4bc3c8614dec6223b26ee41.execmd.exe

description	pid	process	target process
PID 2296 wrote to memory of 4048	2296	03a4b5f75ef9e6996373c932e61b60e8764a5df1f4bc3c8614dec6223b26ee41.exe	MediaCenter.exe
PID 2296 wrote to memory of 4048	2296	03a4b5f75ef9e6996373c932e61b60e8764a5df1f4bc3c8614dec6223b26ee41.exe	MediaCenter.exe
PID 2296 wrote to memory of 4048	2296	03a4b5f75ef9e6996373c932e61b60e8764a5df1f4bc3c8614dec6223b26ee41.exe	MediaCenter.exe
PID 2296 wrote to memory of 3096	2296	03a4b5f75ef9e6996373c932e61b60e8764a5df1f4bc3c8614dec6223b26ee41.exe	cmd.exe
PID 2296 wrote to memory of 3096	2296	03a4b5f75ef9e6996373c932e61b60e8764a5df1f4bc3c8614dec6223b26ee41.exe	cmd.exe
PID 2296 wrote to memory of 3096	2296	03a4b5f75ef9e6996373c932e61b60e8764a5df1f4bc3c8614dec6223b26ee41.exe	cmd.exe
PID 3096 wrote to memory of 3092	3096	cmd.exe	PING.EXE
PID 3096 wrote to memory of 3092	3096	cmd.exe	PING.EXE
PID 3096 wrote to memory of 3092	3096	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\03a4b5f75ef9e6996373c932e61b60e8764a5df1f4bc3c8614dec6223b26ee41.exe
"C:\Users\Admin\AppData\Local\Temp\03a4b5f75ef9e6996373c932e61b60e8764a5df1f4bc3c8614dec6223b26ee41.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2296

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:4048

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\03a4b5f75ef9e6996373c932e61b60e8764a5df1f4bc3c8614dec6223b26ee41.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3096

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:3092

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:2976

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:1272

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:1964

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
081502ec459b0f9ffd937822840a7c41

SHA1
d0a11b14bb52b195c940145bf1e0a9a6462f9315

SHA256
531ea0c839aefa4fbde3d8783a00d752dbde08d9eb8bdcdfdcf6c76ee572d4c4

SHA512
b7969562a47355a2f960d842d37f6506a886db7e1ad9d630eb13b313e59245f7f2abb436a3f3baf1f1784119f9d87781806b719f48e476b3953570c26a36946b

Download Submit
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
MD5
081502ec459b0f9ffd937822840a7c41

SHA1
d0a11b14bb52b195c940145bf1e0a9a6462f9315

SHA256
531ea0c839aefa4fbde3d8783a00d752dbde08d9eb8bdcdfdcf6c76ee572d4c4

SHA512
b7969562a47355a2f960d842d37f6506a886db7e1ad9d630eb13b313e59245f7f2abb436a3f3baf1f1784119f9d87781806b719f48e476b3953570c26a36946b

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads