sakula | 16b4159c3f8a8086afd2e4fcf15770cef603ae8d2d8571ccbf21f921033e0c21

General

Target

16b4159c3f8a8086afd2e4fcf15770cef603ae8d2d8571ccbf21f921033e0c21.exe
Size

79KB
MD5

6b94b0c2a67b3c0d889800de0f0cbd9c
SHA1

2299421c83965da1b456fa5398ca6dd9411f128e
SHA256

16b4159c3f8a8086afd2e4fcf15770cef603ae8d2d8571ccbf21f921033e0c21
SHA512

211c2badf81469932c54e4f34998050d2eeefea2501509d73fd6fad87a22939cda9a3a0071e1980673a26fc6f56548354d6caadf1e64978a2d9ec18c3d39a852

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

2112 MediaCenter.exe

pid	process
2112	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:

16b4159c3f8a8086afd2e4fcf15770cef603ae8d2d8571ccbf21f921033e0c21.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	16b4159c3f8a8086afd2e4fcf15770cef603ae8d2d8571ccbf21f921033e0c21.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

16b4159c3f8a8086afd2e4fcf15770cef603ae8d2d8571ccbf21f921033e0c21.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"	16b4159c3f8a8086afd2e4fcf15770cef603ae8d2d8571ccbf21f921033e0c21.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 51 IoCs

Processes:

svchost.exe

description	ioc	process
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\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 (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.172315"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4172"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.047847"	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\CacheSizeBytes = "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\Config\DownloadMode_BackCompat = "1"	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\MonthID = "2"	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\InternetConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4124"	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\DownloadMonthlyRateFrCnt = "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 = "4228"	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\LANConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132892878773117003"	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\DownlinkBps = "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 (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\DownloadMonthlyCacheHostBytes = "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\Usage\CPUpct = "0.038911"	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\UploadMonthlyLanBytes = "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 (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\UplinkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadRatePct = "100"	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\Config\DODownloadMode = "1"	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\DownloadMonthlyGroupBytes = "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\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\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\Settings	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\UploadMonthlyInternetBytes = "0"	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

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

3912 PING.EXE

pid	process
3912	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

TiWorker.exe16b4159c3f8a8086afd2e4fcf15770cef603ae8d2d8571ccbf21f921033e0c21.exe

description	pid	process
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeIncBasePriorityPrivilege	2136	16b4159c3f8a8086afd2e4fcf15770cef603ae8d2d8571ccbf21f921033e0c21.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

16b4159c3f8a8086afd2e4fcf15770cef603ae8d2d8571ccbf21f921033e0c21.execmd.exe

description	pid	process	target process
PID 2136 wrote to memory of 2112	2136	16b4159c3f8a8086afd2e4fcf15770cef603ae8d2d8571ccbf21f921033e0c21.exe	MediaCenter.exe
PID 2136 wrote to memory of 2112	2136	16b4159c3f8a8086afd2e4fcf15770cef603ae8d2d8571ccbf21f921033e0c21.exe	MediaCenter.exe
PID 2136 wrote to memory of 2112	2136	16b4159c3f8a8086afd2e4fcf15770cef603ae8d2d8571ccbf21f921033e0c21.exe	MediaCenter.exe
PID 2136 wrote to memory of 4072	2136	16b4159c3f8a8086afd2e4fcf15770cef603ae8d2d8571ccbf21f921033e0c21.exe	cmd.exe
PID 2136 wrote to memory of 4072	2136	16b4159c3f8a8086afd2e4fcf15770cef603ae8d2d8571ccbf21f921033e0c21.exe	cmd.exe
PID 2136 wrote to memory of 4072	2136	16b4159c3f8a8086afd2e4fcf15770cef603ae8d2d8571ccbf21f921033e0c21.exe	cmd.exe
PID 4072 wrote to memory of 3912	4072	cmd.exe	PING.EXE
PID 4072 wrote to memory of 3912	4072	cmd.exe	PING.EXE
PID 4072 wrote to memory of 3912	4072	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\16b4159c3f8a8086afd2e4fcf15770cef603ae8d2d8571ccbf21f921033e0c21.exe
"C:\Users\Admin\AppData\Local\Temp\16b4159c3f8a8086afd2e4fcf15770cef603ae8d2d8571ccbf21f921033e0c21.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2136

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:2112

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\16b4159c3f8a8086afd2e4fcf15770cef603ae8d2d8571ccbf21f921033e0c21.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:4072

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:3912

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:3572

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:2580

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:896

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
f469f171491d3315cc0734a05c60f3c7

SHA1
81c76eca45516dc4ef7a4a1db3d53e068f01cf48

SHA256
d36b1e2f9ca3faf0b2a4a774e70c05e6953f4db84ec5f75893c20180ab4468b1

SHA512
d644690e3157ef3878ad334aee0ad59b3530b88f349d3116ee21c2a086926dd92741e07254dc069515606e7fbcbd12fb83073bea014dab10a7a4c6181c0c39e1

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

MD5
f469f171491d3315cc0734a05c60f3c7

SHA1
81c76eca45516dc4ef7a4a1db3d53e068f01cf48

SHA256
d36b1e2f9ca3faf0b2a4a774e70c05e6953f4db84ec5f75893c20180ab4468b1

SHA512
d644690e3157ef3878ad334aee0ad59b3530b88f349d3116ee21c2a086926dd92741e07254dc069515606e7fbcbd12fb83073bea014dab10a7a4c6181c0c39e1

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads