sakula | 155d51d2534dfa31ab1873e7b1df4c18378045c5be13d46375b2c74489a835de

General

Target

155d51d2534dfa31ab1873e7b1df4c18378045c5be13d46375b2c74489a835de.exe
Size

176KB
MD5

efe2c752dd5c4033852d16e66b374771
SHA1

6b54d3eafe9fd10ad962df5765abcc2db5bcdb3e
SHA256

155d51d2534dfa31ab1873e7b1df4c18378045c5be13d46375b2c74489a835de
SHA512

cfd170a8eb0f39347ffdca40738c6675e08dbae38aba5a824aba4551c60a405652d654d3d7a30f620167789fcabd48debfa9763516c0c1d2b25badcfcd049a07

Score

10^/10

sakula persistence rat suricata trojan

Malware Config

Signatures

Sakula
Sakula is a remote access trojan with various capabilities.
trojan rat sakula

Sakula Payload 4 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
behavioral2/memory/1888-132-0x0000000000400000-0x0000000000420000-memory.dmp	family_sakula
behavioral2/memory/1872-133-0x0000000000400000-0x0000000000420000-memory.dmp	family_sakula

suricata: ET MALWARE SUSPICIOUS UA (iexplore)
suricata: ET MALWARE SUSPICIOUS UA (iexplore)
suricata
suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1
suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1
suricata
Executes dropped EXE 1 IoCs

Processes:

MediaCenter.exe

pid process

1872 MediaCenter.exe

pid	process
1872	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:

155d51d2534dfa31ab1873e7b1df4c18378045c5be13d46375b2c74489a835de.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	155d51d2534dfa31ab1873e7b1df4c18378045c5be13d46375b2c74489a835de.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

155d51d2534dfa31ab1873e7b1df4c18378045c5be13d46375b2c74489a835de.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"	155d51d2534dfa31ab1873e7b1df4c18378045c5be13d46375b2c74489a835de.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 49 IoCs

Processes:

svchost.exe

description	ioc	process
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\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 (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\CacheSizeBytes = "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\DownloadMonthlyLinkLocalBytes = "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\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\LANConnectionCount = "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\Config\DownloadMode_BackCompat = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "1"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "2.150580"	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\LinkLocalConnectionCount = "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
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 (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\DownloadMonthlyRateFrBps = "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 = "4160"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "5.714192"	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\UploadCount = "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\MemoryUsageKB = "4380"	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\Settings	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DODownloadMode = "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\SwarmCount = "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\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\DownloadMonthlyRateBkCnt = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132892899532028332"	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\InternetConnectionCount = "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\PriorityDownloadCount = "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\DownloadMonthlyRateBkBps = "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\DownlinkUsageBps = "0"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1384 PING.EXE

pid	process
1384	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

155d51d2534dfa31ab1873e7b1df4c18378045c5be13d46375b2c74489a835de.exeTiWorker.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	1888	155d51d2534dfa31ab1873e7b1df4c18378045c5be13d46375b2c74489a835de.exe
Token: SeSecurityPrivilege	384	TiWorker.exe
Token: SeRestorePrivilege	384	TiWorker.exe
Token: SeBackupPrivilege	384	TiWorker.exe
Token: SeBackupPrivilege	384	TiWorker.exe
Token: SeRestorePrivilege	384	TiWorker.exe
Token: SeSecurityPrivilege	384	TiWorker.exe
Token: SeBackupPrivilege	384	TiWorker.exe
Token: SeRestorePrivilege	384	TiWorker.exe
Token: SeSecurityPrivilege	384	TiWorker.exe
Token: SeBackupPrivilege	384	TiWorker.exe
Token: SeRestorePrivilege	384	TiWorker.exe
Token: SeSecurityPrivilege	384	TiWorker.exe
Token: SeBackupPrivilege	384	TiWorker.exe
Token: SeRestorePrivilege	384	TiWorker.exe
Token: SeSecurityPrivilege	384	TiWorker.exe
Token: SeBackupPrivilege	384	TiWorker.exe
Token: SeRestorePrivilege	384	TiWorker.exe
Token: SeSecurityPrivilege	384	TiWorker.exe
Token: SeBackupPrivilege	384	TiWorker.exe
Token: SeRestorePrivilege	384	TiWorker.exe
Token: SeSecurityPrivilege	384	TiWorker.exe
Token: SeBackupPrivilege	384	TiWorker.exe
Token: SeRestorePrivilege	384	TiWorker.exe
Token: SeSecurityPrivilege	384	TiWorker.exe
Token: SeBackupPrivilege	384	TiWorker.exe
Token: SeRestorePrivilege	384	TiWorker.exe
Token: SeSecurityPrivilege	384	TiWorker.exe
Token: SeBackupPrivilege	384	TiWorker.exe
Token: SeRestorePrivilege	384	TiWorker.exe
Token: SeSecurityPrivilege	384	TiWorker.exe
Token: SeBackupPrivilege	384	TiWorker.exe
Token: SeRestorePrivilege	384	TiWorker.exe
Token: SeSecurityPrivilege	384	TiWorker.exe
Token: SeBackupPrivilege	384	TiWorker.exe
Token: SeRestorePrivilege	384	TiWorker.exe
Token: SeSecurityPrivilege	384	TiWorker.exe
Token: SeBackupPrivilege	384	TiWorker.exe
Token: SeRestorePrivilege	384	TiWorker.exe
Token: SeSecurityPrivilege	384	TiWorker.exe
Token: SeBackupPrivilege	384	TiWorker.exe
Token: SeRestorePrivilege	384	TiWorker.exe
Token: SeSecurityPrivilege	384	TiWorker.exe
Token: SeBackupPrivilege	384	TiWorker.exe
Token: SeRestorePrivilege	384	TiWorker.exe
Token: SeSecurityPrivilege	384	TiWorker.exe
Token: SeBackupPrivilege	384	TiWorker.exe
Token: SeRestorePrivilege	384	TiWorker.exe
Token: SeSecurityPrivilege	384	TiWorker.exe
Token: SeBackupPrivilege	384	TiWorker.exe
Token: SeRestorePrivilege	384	TiWorker.exe
Token: SeSecurityPrivilege	384	TiWorker.exe
Token: SeBackupPrivilege	384	TiWorker.exe
Token: SeRestorePrivilege	384	TiWorker.exe
Token: SeSecurityPrivilege	384	TiWorker.exe
Token: SeBackupPrivilege	384	TiWorker.exe
Token: SeRestorePrivilege	384	TiWorker.exe
Token: SeSecurityPrivilege	384	TiWorker.exe
Token: SeBackupPrivilege	384	TiWorker.exe
Token: SeRestorePrivilege	384	TiWorker.exe
Token: SeSecurityPrivilege	384	TiWorker.exe
Token: SeBackupPrivilege	384	TiWorker.exe
Token: SeRestorePrivilege	384	TiWorker.exe
Token: SeSecurityPrivilege	384	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

155d51d2534dfa31ab1873e7b1df4c18378045c5be13d46375b2c74489a835de.execmd.exe

description	pid	process	target process
PID 1888 wrote to memory of 1872	1888	155d51d2534dfa31ab1873e7b1df4c18378045c5be13d46375b2c74489a835de.exe	MediaCenter.exe
PID 1888 wrote to memory of 1872	1888	155d51d2534dfa31ab1873e7b1df4c18378045c5be13d46375b2c74489a835de.exe	MediaCenter.exe
PID 1888 wrote to memory of 1872	1888	155d51d2534dfa31ab1873e7b1df4c18378045c5be13d46375b2c74489a835de.exe	MediaCenter.exe
PID 1888 wrote to memory of 3996	1888	155d51d2534dfa31ab1873e7b1df4c18378045c5be13d46375b2c74489a835de.exe	cmd.exe
PID 1888 wrote to memory of 3996	1888	155d51d2534dfa31ab1873e7b1df4c18378045c5be13d46375b2c74489a835de.exe	cmd.exe
PID 1888 wrote to memory of 3996	1888	155d51d2534dfa31ab1873e7b1df4c18378045c5be13d46375b2c74489a835de.exe	cmd.exe
PID 3996 wrote to memory of 1384	3996	cmd.exe	PING.EXE
PID 3996 wrote to memory of 1384	3996	cmd.exe	PING.EXE
PID 3996 wrote to memory of 1384	3996	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\155d51d2534dfa31ab1873e7b1df4c18378045c5be13d46375b2c74489a835de.exe
"C:\Users\Admin\AppData\Local\Temp\155d51d2534dfa31ab1873e7b1df4c18378045c5be13d46375b2c74489a835de.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1888

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:1872

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\155d51d2534dfa31ab1873e7b1df4c18378045c5be13d46375b2c74489a835de.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3996

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:1384

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:2688

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:1204

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:384

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
f9d5b31f905596eb38810108759771a9

SHA1
10ffcbb3f7c46bfe3fac80617ef9536452a22358

SHA256
78d52f04b32fafcae06f5e545e8b2f73086b31be619df4aaea6241024f17ac09

SHA512
ce4ac9ad08173facda1bab67387fc93737197a193f80e8aafd2b3bc026d3bbf3e3c7484dd762365416b5a07214b6ad212f7dbc9b303e0721ef3ca155695808e1

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

MD5
f9d5b31f905596eb38810108759771a9

SHA1
10ffcbb3f7c46bfe3fac80617ef9536452a22358

SHA256
78d52f04b32fafcae06f5e545e8b2f73086b31be619df4aaea6241024f17ac09

SHA512
ce4ac9ad08173facda1bab67387fc93737197a193f80e8aafd2b3bc026d3bbf3e3c7484dd762365416b5a07214b6ad212f7dbc9b303e0721ef3ca155695808e1

Download Submit
memory/1872-133-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1888-132-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads