sakula | 16cdc79e6b8fc6c0835cd6a3076c8ef1adea50de74cf94f61278ee8074a4c72e

General

Target

16cdc79e6b8fc6c0835cd6a3076c8ef1adea50de74cf94f61278ee8074a4c72e.exe
Size

92KB
MD5

fe6a1de890b815a948d0ad052c249779
SHA1

8dc592e8d549113bca30623a91ad94fe7686bd14
SHA256

16cdc79e6b8fc6c0835cd6a3076c8ef1adea50de74cf94f61278ee8074a4c72e
SHA512

b61daccfc56ab8b46942878da05258407be13447e933f691af5dcd2fcf99e6885ef849748ee8eb24829ebbf093a54c625a6aa78dac793d8f45bb9d17e1370e25

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

2872 MediaCenter.exe

pid	process
2872	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:

16cdc79e6b8fc6c0835cd6a3076c8ef1adea50de74cf94f61278ee8074a4c72e.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	16cdc79e6b8fc6c0835cd6a3076c8ef1adea50de74cf94f61278ee8074a4c72e.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

16cdc79e6b8fc6c0835cd6a3076c8ef1adea50de74cf94f61278ee8074a4c72e.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"	16cdc79e6b8fc6c0835cd6a3076c8ef1adea50de74cf94f61278ee8074a4c72e.exe

Drops file in Windows directory 3 IoCs

Processes:

TiWorker.exesvchost.exe

description	ioc	process
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
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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	MusNotifyIcon.exe
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	MusNotifyIcon.exe

Modifies data under HKEY_USERS 49 IoCs

Processes:

svchost.exe

description	ioc	process
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\DownloadMonthlyRateBkCnt = "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\MonthlyUploadRestriction = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadCount = "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\Usage\MonthID = "2"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132892877406451690"	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\DownlinkUsageBps = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.188917"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "1.063791"	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\DownloadMonthlyRateFrCnt = "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\UploadMonthlyInternetBytes = "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\CDNConnectionCount = "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\DownlinkBps = "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\UploadMonthlyLanBytes = "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\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\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\UplinkBps = "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\FrDownloadRatePct = "90"	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\Config\DODownloadMode = "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\UploadRatePct = "100"	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\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\PriorityDownloadPendingCount = "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 = "4184"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "24.983930"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4096"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Settings	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\DownloadMonthlyInternetBytes = "0"	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\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\BkDownloadRatePct = "45"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1348 PING.EXE

pid	process
1348	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

16cdc79e6b8fc6c0835cd6a3076c8ef1adea50de74cf94f61278ee8074a4c72e.exeTiWorker.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	3704	16cdc79e6b8fc6c0835cd6a3076c8ef1adea50de74cf94f61278ee8074a4c72e.exe
Token: SeSecurityPrivilege	3200	TiWorker.exe
Token: SeRestorePrivilege	3200	TiWorker.exe
Token: SeBackupPrivilege	3200	TiWorker.exe
Token: SeBackupPrivilege	3200	TiWorker.exe
Token: SeRestorePrivilege	3200	TiWorker.exe
Token: SeSecurityPrivilege	3200	TiWorker.exe
Token: SeBackupPrivilege	3200	TiWorker.exe
Token: SeRestorePrivilege	3200	TiWorker.exe
Token: SeSecurityPrivilege	3200	TiWorker.exe
Token: SeBackupPrivilege	3200	TiWorker.exe
Token: SeRestorePrivilege	3200	TiWorker.exe
Token: SeSecurityPrivilege	3200	TiWorker.exe
Token: SeBackupPrivilege	3200	TiWorker.exe
Token: SeRestorePrivilege	3200	TiWorker.exe
Token: SeSecurityPrivilege	3200	TiWorker.exe
Token: SeBackupPrivilege	3200	TiWorker.exe
Token: SeRestorePrivilege	3200	TiWorker.exe
Token: SeSecurityPrivilege	3200	TiWorker.exe
Token: SeBackupPrivilege	3200	TiWorker.exe
Token: SeRestorePrivilege	3200	TiWorker.exe
Token: SeSecurityPrivilege	3200	TiWorker.exe
Token: SeBackupPrivilege	3200	TiWorker.exe
Token: SeRestorePrivilege	3200	TiWorker.exe
Token: SeSecurityPrivilege	3200	TiWorker.exe
Token: SeBackupPrivilege	3200	TiWorker.exe
Token: SeRestorePrivilege	3200	TiWorker.exe
Token: SeSecurityPrivilege	3200	TiWorker.exe
Token: SeBackupPrivilege	3200	TiWorker.exe
Token: SeRestorePrivilege	3200	TiWorker.exe
Token: SeSecurityPrivilege	3200	TiWorker.exe
Token: SeBackupPrivilege	3200	TiWorker.exe
Token: SeRestorePrivilege	3200	TiWorker.exe
Token: SeSecurityPrivilege	3200	TiWorker.exe
Token: SeBackupPrivilege	3200	TiWorker.exe
Token: SeRestorePrivilege	3200	TiWorker.exe
Token: SeSecurityPrivilege	3200	TiWorker.exe
Token: SeBackupPrivilege	3200	TiWorker.exe
Token: SeRestorePrivilege	3200	TiWorker.exe
Token: SeSecurityPrivilege	3200	TiWorker.exe
Token: SeBackupPrivilege	3200	TiWorker.exe
Token: SeRestorePrivilege	3200	TiWorker.exe
Token: SeSecurityPrivilege	3200	TiWorker.exe
Token: SeBackupPrivilege	3200	TiWorker.exe
Token: SeRestorePrivilege	3200	TiWorker.exe
Token: SeSecurityPrivilege	3200	TiWorker.exe
Token: SeBackupPrivilege	3200	TiWorker.exe
Token: SeRestorePrivilege	3200	TiWorker.exe
Token: SeSecurityPrivilege	3200	TiWorker.exe
Token: SeBackupPrivilege	3200	TiWorker.exe
Token: SeRestorePrivilege	3200	TiWorker.exe
Token: SeSecurityPrivilege	3200	TiWorker.exe
Token: SeBackupPrivilege	3200	TiWorker.exe
Token: SeRestorePrivilege	3200	TiWorker.exe
Token: SeSecurityPrivilege	3200	TiWorker.exe
Token: SeBackupPrivilege	3200	TiWorker.exe
Token: SeRestorePrivilege	3200	TiWorker.exe
Token: SeSecurityPrivilege	3200	TiWorker.exe
Token: SeBackupPrivilege	3200	TiWorker.exe
Token: SeRestorePrivilege	3200	TiWorker.exe
Token: SeSecurityPrivilege	3200	TiWorker.exe
Token: SeBackupPrivilege	3200	TiWorker.exe
Token: SeRestorePrivilege	3200	TiWorker.exe
Token: SeSecurityPrivilege	3200	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

16cdc79e6b8fc6c0835cd6a3076c8ef1adea50de74cf94f61278ee8074a4c72e.execmd.exe

description	pid	process	target process
PID 3704 wrote to memory of 2872	3704	16cdc79e6b8fc6c0835cd6a3076c8ef1adea50de74cf94f61278ee8074a4c72e.exe	MediaCenter.exe
PID 3704 wrote to memory of 2872	3704	16cdc79e6b8fc6c0835cd6a3076c8ef1adea50de74cf94f61278ee8074a4c72e.exe	MediaCenter.exe
PID 3704 wrote to memory of 2872	3704	16cdc79e6b8fc6c0835cd6a3076c8ef1adea50de74cf94f61278ee8074a4c72e.exe	MediaCenter.exe
PID 3704 wrote to memory of 3420	3704	16cdc79e6b8fc6c0835cd6a3076c8ef1adea50de74cf94f61278ee8074a4c72e.exe	cmd.exe
PID 3704 wrote to memory of 3420	3704	16cdc79e6b8fc6c0835cd6a3076c8ef1adea50de74cf94f61278ee8074a4c72e.exe	cmd.exe
PID 3704 wrote to memory of 3420	3704	16cdc79e6b8fc6c0835cd6a3076c8ef1adea50de74cf94f61278ee8074a4c72e.exe	cmd.exe
PID 3420 wrote to memory of 1348	3420	cmd.exe	PING.EXE
PID 3420 wrote to memory of 1348	3420	cmd.exe	PING.EXE
PID 3420 wrote to memory of 1348	3420	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\16cdc79e6b8fc6c0835cd6a3076c8ef1adea50de74cf94f61278ee8074a4c72e.exe
"C:\Users\Admin\AppData\Local\Temp\16cdc79e6b8fc6c0835cd6a3076c8ef1adea50de74cf94f61278ee8074a4c72e.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3704

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:2872

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\16cdc79e6b8fc6c0835cd6a3076c8ef1adea50de74cf94f61278ee8074a4c72e.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3420

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:1348

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:2592

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:1820

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:3200

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
14f446f0c9a57fbd196a05753debf505

SHA1
670b873e3d7e10b87b9155d89765686c6747ceb0

SHA256
b481cd4f3ad7dccbed2e82e408b9fb25769cdd1004927a4fe3aff33e8dc381b8

SHA512
fae2c11b49267c1372a4d99836d370046ae197810901c95b70d86b8b64fc3f0c5c5408c9ce5aa0f924237d74a08f7f26a221e53b99feabc389ea64f2c2460e1f

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

MD5
14f446f0c9a57fbd196a05753debf505

SHA1
670b873e3d7e10b87b9155d89765686c6747ceb0

SHA256
b481cd4f3ad7dccbed2e82e408b9fb25769cdd1004927a4fe3aff33e8dc381b8

SHA512
fae2c11b49267c1372a4d99836d370046ae197810901c95b70d86b8b64fc3f0c5c5408c9ce5aa0f924237d74a08f7f26a221e53b99feabc389ea64f2c2460e1f

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads