sakula | 131bd3d6b2ae85244524b2401cae00dab3356896f2c4c622e64ca528407a69bb

General

Target

131bd3d6b2ae85244524b2401cae00dab3356896f2c4c622e64ca528407a69bb.exe
Size

216KB
MD5

af997fdf80c0abdf38051a9de28ca374
SHA1

f62987f2ba976e6ef532f89fec0a08e1026bdfe7
SHA256

131bd3d6b2ae85244524b2401cae00dab3356896f2c4c622e64ca528407a69bb
SHA512

d20a388d703d044c2edd60cdc2fa3c7e94de1abcd12eb521f84c236d9ae399cce1baef9548cde7a7a98f64a196557a256c1ee3c0de204f9d4ed344a3da117553

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/2188-132-0x0000000000400000-0x0000000000420000-memory.dmp	family_sakula
behavioral2/memory/2512-133-0x0000000000400000-0x0000000000420000-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

2512 MediaCenter.exe

pid	process
2512	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:

131bd3d6b2ae85244524b2401cae00dab3356896f2c4c622e64ca528407a69bb.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	131bd3d6b2ae85244524b2401cae00dab3356896f2c4c622e64ca528407a69bb.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

131bd3d6b2ae85244524b2401cae00dab3356896f2c4c622e64ca528407a69bb.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"	131bd3d6b2ae85244524b2401cae00dab3356896f2c4c622e64ca528407a69bb.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
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\DownloadMonthlyGroupBytes = "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\BkDownloadRatePct = "45"	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\PriorityDownloadPendingCount = "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\UploadMonthlyInternetBytes = "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\InternetConnectionCount = "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\MonthlyUploadRestriction = "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\CDNConnectionCount = "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\SwarmCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.561790"	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\MonthID = "2"	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\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 (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\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 (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "1.428604"	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\DownloadMonthlyRateBkBps = "0"	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\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\Usage\MemoryUsageKB = "4312"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.959230"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4132"	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\DownloadMonthlyLinkLocalBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCacheHostBytes = "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\LinkLocalConnectionCount = "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\CacheSizeBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkBps = "0"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config	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\UploadMonthlyLanBytes = "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\DownloadMonthlyRateBkCnt = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132892932603067323"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

3816 PING.EXE

pid	process
3816	PING.EXE

Suspicious use of AdjustPrivilegeToken 34 IoCs

Processes:

131bd3d6b2ae85244524b2401cae00dab3356896f2c4c622e64ca528407a69bb.exeTiWorker.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	2188	131bd3d6b2ae85244524b2401cae00dab3356896f2c4c622e64ca528407a69bb.exe
Token: SeSecurityPrivilege	2524	TiWorker.exe
Token: SeRestorePrivilege	2524	TiWorker.exe
Token: SeBackupPrivilege	2524	TiWorker.exe
Token: SeBackupPrivilege	2524	TiWorker.exe
Token: SeRestorePrivilege	2524	TiWorker.exe
Token: SeSecurityPrivilege	2524	TiWorker.exe
Token: SeBackupPrivilege	2524	TiWorker.exe
Token: SeRestorePrivilege	2524	TiWorker.exe
Token: SeSecurityPrivilege	2524	TiWorker.exe
Token: SeBackupPrivilege	2524	TiWorker.exe
Token: SeRestorePrivilege	2524	TiWorker.exe
Token: SeSecurityPrivilege	2524	TiWorker.exe
Token: SeBackupPrivilege	2524	TiWorker.exe
Token: SeRestorePrivilege	2524	TiWorker.exe
Token: SeSecurityPrivilege	2524	TiWorker.exe
Token: SeBackupPrivilege	2524	TiWorker.exe
Token: SeRestorePrivilege	2524	TiWorker.exe
Token: SeSecurityPrivilege	2524	TiWorker.exe
Token: SeBackupPrivilege	2524	TiWorker.exe
Token: SeRestorePrivilege	2524	TiWorker.exe
Token: SeSecurityPrivilege	2524	TiWorker.exe
Token: SeBackupPrivilege	2524	TiWorker.exe
Token: SeRestorePrivilege	2524	TiWorker.exe
Token: SeSecurityPrivilege	2524	TiWorker.exe
Token: SeBackupPrivilege	2524	TiWorker.exe
Token: SeRestorePrivilege	2524	TiWorker.exe
Token: SeSecurityPrivilege	2524	TiWorker.exe
Token: SeBackupPrivilege	2524	TiWorker.exe
Token: SeRestorePrivilege	2524	TiWorker.exe
Token: SeSecurityPrivilege	2524	TiWorker.exe
Token: SeBackupPrivilege	2524	TiWorker.exe
Token: SeRestorePrivilege	2524	TiWorker.exe
Token: SeSecurityPrivilege	2524	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

131bd3d6b2ae85244524b2401cae00dab3356896f2c4c622e64ca528407a69bb.execmd.exe

description	pid	process	target process
PID 2188 wrote to memory of 2512	2188	131bd3d6b2ae85244524b2401cae00dab3356896f2c4c622e64ca528407a69bb.exe	MediaCenter.exe
PID 2188 wrote to memory of 2512	2188	131bd3d6b2ae85244524b2401cae00dab3356896f2c4c622e64ca528407a69bb.exe	MediaCenter.exe
PID 2188 wrote to memory of 2512	2188	131bd3d6b2ae85244524b2401cae00dab3356896f2c4c622e64ca528407a69bb.exe	MediaCenter.exe
PID 2188 wrote to memory of 1948	2188	131bd3d6b2ae85244524b2401cae00dab3356896f2c4c622e64ca528407a69bb.exe	cmd.exe
PID 2188 wrote to memory of 1948	2188	131bd3d6b2ae85244524b2401cae00dab3356896f2c4c622e64ca528407a69bb.exe	cmd.exe
PID 2188 wrote to memory of 1948	2188	131bd3d6b2ae85244524b2401cae00dab3356896f2c4c622e64ca528407a69bb.exe	cmd.exe
PID 1948 wrote to memory of 3816	1948	cmd.exe	PING.EXE
PID 1948 wrote to memory of 3816	1948	cmd.exe	PING.EXE
PID 1948 wrote to memory of 3816	1948	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\131bd3d6b2ae85244524b2401cae00dab3356896f2c4c622e64ca528407a69bb.exe
"C:\Users\Admin\AppData\Local\Temp\131bd3d6b2ae85244524b2401cae00dab3356896f2c4c622e64ca528407a69bb.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2188

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:2512

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\131bd3d6b2ae85244524b2401cae00dab3356896f2c4c622e64ca528407a69bb.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1948

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:3816

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:1588

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:768

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:2524

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
a4fc068a7448cc8cf3f63dffe8f1c4ae

SHA1
52b73f67ee98e5b375e3672f8b6bc370dc2cfd54

SHA256
3e5b88d918aa66b3984c4f452111d9c41b90ecb9fba9ee8c110ad163ee14dc4b

SHA512
9a343ea18b155bdef32fcc95b4d4a22a50fd66bd80079478323719bd7eccee3f2e9f054023e14467a6e801eff164bdf0008e6e901941bde58c7933f57a8550fb

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

MD5
a4fc068a7448cc8cf3f63dffe8f1c4ae

SHA1
52b73f67ee98e5b375e3672f8b6bc370dc2cfd54

SHA256
3e5b88d918aa66b3984c4f452111d9c41b90ecb9fba9ee8c110ad163ee14dc4b

SHA512
9a343ea18b155bdef32fcc95b4d4a22a50fd66bd80079478323719bd7eccee3f2e9f054023e14467a6e801eff164bdf0008e6e901941bde58c7933f57a8550fb

Download Submit
memory/2188-132-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2512-133-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads