sakula | 18955ac2856a845a5684aa36678f964c2278767d19129306908f846c15b26f1a

General

Target

18955ac2856a845a5684aa36678f964c2278767d19129306908f846c15b26f1a.exe
Size

212KB
MD5

357676eee9b4f2810c71f4e39c35e171
SHA1

07f662e809d6d8d71a329c82e0d0da58915c9254
SHA256

18955ac2856a845a5684aa36678f964c2278767d19129306908f846c15b26f1a
SHA512

48c322dd28f31ea6bc6d7e286c82da4a4352eada22137a4e0151015a25553d221a09f0fecc134a46ecda68d9b43150168cd9bf355c590e1150f18ccea219873a

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 3 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/1488-132-0x0000000000400000-0x0000000000420000-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

1288 MediaCenter.exe

pid	process
1288	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:

18955ac2856a845a5684aa36678f964c2278767d19129306908f846c15b26f1a.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	18955ac2856a845a5684aa36678f964c2278767d19129306908f846c15b26f1a.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

18955ac2856a845a5684aa36678f964c2278767d19129306908f846c15b26f1a.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"	18955ac2856a845a5684aa36678f964c2278767d19129306908f846c15b26f1a.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 50 IoCs

Processes:

svchost.exe

description	ioc	process
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\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\Config\KVFileExpirationTime = "132892852793336443"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4332"	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\SwarmCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.024655"	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\DownlinkBps = "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\UplinkUsageBps = "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\UploadMonthlyInternetBytes = "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\DownloadMonthlyRateBkCnt = "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\DownlinkUsageBps = "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\MemoryUsageKB = "4068"	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\Config	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\FrDownloadRatePct = "90"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4128"	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\UploadRatePct = "100"	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
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "1.328905"	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\UploadMonthlyLanBytes = "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 (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\CDNConnectionCount = "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\BkDownloadRatePct = "45"	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\DownloadMonthlyInternetBytes = "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 = "0.120919"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1308 PING.EXE

pid	process
1308	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

TiWorker.exe18955ac2856a845a5684aa36678f964c2278767d19129306908f846c15b26f1a.exe

description	pid	process
Token: SeSecurityPrivilege	3568	TiWorker.exe
Token: SeRestorePrivilege	3568	TiWorker.exe
Token: SeBackupPrivilege	3568	TiWorker.exe
Token: SeIncBasePriorityPrivilege	1488	18955ac2856a845a5684aa36678f964c2278767d19129306908f846c15b26f1a.exe
Token: SeBackupPrivilege	3568	TiWorker.exe
Token: SeRestorePrivilege	3568	TiWorker.exe
Token: SeSecurityPrivilege	3568	TiWorker.exe
Token: SeBackupPrivilege	3568	TiWorker.exe
Token: SeRestorePrivilege	3568	TiWorker.exe
Token: SeSecurityPrivilege	3568	TiWorker.exe
Token: SeBackupPrivilege	3568	TiWorker.exe
Token: SeRestorePrivilege	3568	TiWorker.exe
Token: SeSecurityPrivilege	3568	TiWorker.exe
Token: SeBackupPrivilege	3568	TiWorker.exe
Token: SeRestorePrivilege	3568	TiWorker.exe
Token: SeSecurityPrivilege	3568	TiWorker.exe
Token: SeBackupPrivilege	3568	TiWorker.exe
Token: SeRestorePrivilege	3568	TiWorker.exe
Token: SeSecurityPrivilege	3568	TiWorker.exe
Token: SeBackupPrivilege	3568	TiWorker.exe
Token: SeRestorePrivilege	3568	TiWorker.exe
Token: SeSecurityPrivilege	3568	TiWorker.exe
Token: SeBackupPrivilege	3568	TiWorker.exe
Token: SeRestorePrivilege	3568	TiWorker.exe
Token: SeSecurityPrivilege	3568	TiWorker.exe
Token: SeBackupPrivilege	3568	TiWorker.exe
Token: SeRestorePrivilege	3568	TiWorker.exe
Token: SeSecurityPrivilege	3568	TiWorker.exe
Token: SeBackupPrivilege	3568	TiWorker.exe
Token: SeRestorePrivilege	3568	TiWorker.exe
Token: SeSecurityPrivilege	3568	TiWorker.exe
Token: SeBackupPrivilege	3568	TiWorker.exe
Token: SeRestorePrivilege	3568	TiWorker.exe
Token: SeSecurityPrivilege	3568	TiWorker.exe
Token: SeBackupPrivilege	3568	TiWorker.exe
Token: SeRestorePrivilege	3568	TiWorker.exe
Token: SeSecurityPrivilege	3568	TiWorker.exe
Token: SeBackupPrivilege	3568	TiWorker.exe
Token: SeRestorePrivilege	3568	TiWorker.exe
Token: SeSecurityPrivilege	3568	TiWorker.exe
Token: SeBackupPrivilege	3568	TiWorker.exe
Token: SeRestorePrivilege	3568	TiWorker.exe
Token: SeSecurityPrivilege	3568	TiWorker.exe
Token: SeBackupPrivilege	3568	TiWorker.exe
Token: SeRestorePrivilege	3568	TiWorker.exe
Token: SeSecurityPrivilege	3568	TiWorker.exe
Token: SeBackupPrivilege	3568	TiWorker.exe
Token: SeRestorePrivilege	3568	TiWorker.exe
Token: SeSecurityPrivilege	3568	TiWorker.exe
Token: SeBackupPrivilege	3568	TiWorker.exe
Token: SeRestorePrivilege	3568	TiWorker.exe
Token: SeSecurityPrivilege	3568	TiWorker.exe
Token: SeBackupPrivilege	3568	TiWorker.exe
Token: SeRestorePrivilege	3568	TiWorker.exe
Token: SeSecurityPrivilege	3568	TiWorker.exe
Token: SeBackupPrivilege	3568	TiWorker.exe
Token: SeRestorePrivilege	3568	TiWorker.exe
Token: SeSecurityPrivilege	3568	TiWorker.exe
Token: SeBackupPrivilege	3568	TiWorker.exe
Token: SeRestorePrivilege	3568	TiWorker.exe
Token: SeSecurityPrivilege	3568	TiWorker.exe
Token: SeBackupPrivilege	3568	TiWorker.exe
Token: SeRestorePrivilege	3568	TiWorker.exe
Token: SeSecurityPrivilege	3568	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

18955ac2856a845a5684aa36678f964c2278767d19129306908f846c15b26f1a.execmd.exe

description	pid	process	target process
PID 1488 wrote to memory of 1288	1488	18955ac2856a845a5684aa36678f964c2278767d19129306908f846c15b26f1a.exe	MediaCenter.exe
PID 1488 wrote to memory of 1288	1488	18955ac2856a845a5684aa36678f964c2278767d19129306908f846c15b26f1a.exe	MediaCenter.exe
PID 1488 wrote to memory of 1288	1488	18955ac2856a845a5684aa36678f964c2278767d19129306908f846c15b26f1a.exe	MediaCenter.exe
PID 1488 wrote to memory of 1380	1488	18955ac2856a845a5684aa36678f964c2278767d19129306908f846c15b26f1a.exe	cmd.exe
PID 1488 wrote to memory of 1380	1488	18955ac2856a845a5684aa36678f964c2278767d19129306908f846c15b26f1a.exe	cmd.exe
PID 1488 wrote to memory of 1380	1488	18955ac2856a845a5684aa36678f964c2278767d19129306908f846c15b26f1a.exe	cmd.exe
PID 1380 wrote to memory of 1308	1380	cmd.exe	PING.EXE
PID 1380 wrote to memory of 1308	1380	cmd.exe	PING.EXE
PID 1380 wrote to memory of 1308	1380	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\18955ac2856a845a5684aa36678f964c2278767d19129306908f846c15b26f1a.exe
"C:\Users\Admin\AppData\Local\Temp\18955ac2856a845a5684aa36678f964c2278767d19129306908f846c15b26f1a.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1488

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:1288

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\18955ac2856a845a5684aa36678f964c2278767d19129306908f846c15b26f1a.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1380

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:1308

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:3800

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:2024

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:3568

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
034d55724a7f97169e1aaec6010b7bdf

SHA1
992cc9eb87e7013fe773bad1d03c10de461c9942

SHA256
f077223417d419d9296db9fde878c94f949c92b25785ce352d19e2a32a632c7e

SHA512
c8ab80e29577b7afbbcb19efcab91f5b289eddb34a0316236147170d2704d910e244e0178b973601f374d76ab2e0c45d3efcc7bc5de4d14f721cf385b50d34eb

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

MD5
034d55724a7f97169e1aaec6010b7bdf

SHA1
992cc9eb87e7013fe773bad1d03c10de461c9942

SHA256
f077223417d419d9296db9fde878c94f949c92b25785ce352d19e2a32a632c7e

SHA512
c8ab80e29577b7afbbcb19efcab91f5b289eddb34a0316236147170d2704d910e244e0178b973601f374d76ab2e0c45d3efcc7bc5de4d14f721cf385b50d34eb

Download Submit
memory/1488-132-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads