sakula | 1950b439ea74d9d4590ad87633e004e23bc2b2d4d4d270c7b0c3e2e4f9be6c04

General

Target

1950b439ea74d9d4590ad87633e004e23bc2b2d4d4d270c7b0c3e2e4f9be6c04.exe
Size

89KB
MD5

0d390e2b88ff63735b18f2ad8a9f875a
SHA1

c6c9bc8866fb666299564150e159c6f40e0fe220
SHA256

1950b439ea74d9d4590ad87633e004e23bc2b2d4d4d270c7b0c3e2e4f9be6c04
SHA512

43c0afa7720cefe73b68c5ddbf35120ddbd25add9ef975a61f53200d08bbfe0ef5b2c0fcbca6c4d09e80ed12ee4cad2b90394d023353dd6b7fc494c011ce6a46

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

1220 MediaCenter.exe

pid	process
1220	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:

1950b439ea74d9d4590ad87633e004e23bc2b2d4d4d270c7b0c3e2e4f9be6c04.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	1950b439ea74d9d4590ad87633e004e23bc2b2d4d4d270c7b0c3e2e4f9be6c04.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

1950b439ea74d9d4590ad87633e004e23bc2b2d4d4d270c7b0c3e2e4f9be6c04.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"	1950b439ea74d9d4590ad87633e004e23bc2b2d4d4d270c7b0c3e2e4f9be6c04.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\UploadMonthlyInternetBytes = "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 (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\UploadRatePct = "100"	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\DownloadMonthlyGroupBytes = "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\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\MemoryUsageKB = "4072"	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\PeerInfoCount = "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\DownlinkUsageBps = "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\UploadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132892843679791152"	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\DownloadMonthlyLanBytes = "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\InternetConnectionCount = "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\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 = "1"	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\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 (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\DownloadMonthlyRateFrBps = "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\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\PriorityDownloadPendingCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "1.459872"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4276"	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\Config\DODownloadMode = "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\LANConnectionCount = "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\PriorityDownloadCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.625017"	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\Config	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\FrDownloadRatePct = "90"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

3760 PING.EXE

pid	process
3760	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

1950b439ea74d9d4590ad87633e004e23bc2b2d4d4d270c7b0c3e2e4f9be6c04.exeTiWorker.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	4036	1950b439ea74d9d4590ad87633e004e23bc2b2d4d4d270c7b0c3e2e4f9be6c04.exe
Token: SeSecurityPrivilege	3064	TiWorker.exe
Token: SeRestorePrivilege	3064	TiWorker.exe
Token: SeBackupPrivilege	3064	TiWorker.exe
Token: SeBackupPrivilege	3064	TiWorker.exe
Token: SeRestorePrivilege	3064	TiWorker.exe
Token: SeSecurityPrivilege	3064	TiWorker.exe
Token: SeBackupPrivilege	3064	TiWorker.exe
Token: SeRestorePrivilege	3064	TiWorker.exe
Token: SeSecurityPrivilege	3064	TiWorker.exe
Token: SeBackupPrivilege	3064	TiWorker.exe
Token: SeRestorePrivilege	3064	TiWorker.exe
Token: SeSecurityPrivilege	3064	TiWorker.exe
Token: SeBackupPrivilege	3064	TiWorker.exe
Token: SeRestorePrivilege	3064	TiWorker.exe
Token: SeSecurityPrivilege	3064	TiWorker.exe
Token: SeBackupPrivilege	3064	TiWorker.exe
Token: SeRestorePrivilege	3064	TiWorker.exe
Token: SeSecurityPrivilege	3064	TiWorker.exe
Token: SeBackupPrivilege	3064	TiWorker.exe
Token: SeRestorePrivilege	3064	TiWorker.exe
Token: SeSecurityPrivilege	3064	TiWorker.exe
Token: SeBackupPrivilege	3064	TiWorker.exe
Token: SeRestorePrivilege	3064	TiWorker.exe
Token: SeSecurityPrivilege	3064	TiWorker.exe
Token: SeBackupPrivilege	3064	TiWorker.exe
Token: SeRestorePrivilege	3064	TiWorker.exe
Token: SeSecurityPrivilege	3064	TiWorker.exe
Token: SeBackupPrivilege	3064	TiWorker.exe
Token: SeRestorePrivilege	3064	TiWorker.exe
Token: SeSecurityPrivilege	3064	TiWorker.exe
Token: SeBackupPrivilege	3064	TiWorker.exe
Token: SeRestorePrivilege	3064	TiWorker.exe
Token: SeSecurityPrivilege	3064	TiWorker.exe
Token: SeBackupPrivilege	3064	TiWorker.exe
Token: SeRestorePrivilege	3064	TiWorker.exe
Token: SeSecurityPrivilege	3064	TiWorker.exe
Token: SeBackupPrivilege	3064	TiWorker.exe
Token: SeRestorePrivilege	3064	TiWorker.exe
Token: SeSecurityPrivilege	3064	TiWorker.exe
Token: SeBackupPrivilege	3064	TiWorker.exe
Token: SeRestorePrivilege	3064	TiWorker.exe
Token: SeSecurityPrivilege	3064	TiWorker.exe
Token: SeBackupPrivilege	3064	TiWorker.exe
Token: SeRestorePrivilege	3064	TiWorker.exe
Token: SeSecurityPrivilege	3064	TiWorker.exe
Token: SeBackupPrivilege	3064	TiWorker.exe
Token: SeRestorePrivilege	3064	TiWorker.exe
Token: SeSecurityPrivilege	3064	TiWorker.exe
Token: SeBackupPrivilege	3064	TiWorker.exe
Token: SeRestorePrivilege	3064	TiWorker.exe
Token: SeSecurityPrivilege	3064	TiWorker.exe
Token: SeBackupPrivilege	3064	TiWorker.exe
Token: SeRestorePrivilege	3064	TiWorker.exe
Token: SeSecurityPrivilege	3064	TiWorker.exe
Token: SeBackupPrivilege	3064	TiWorker.exe
Token: SeRestorePrivilege	3064	TiWorker.exe
Token: SeSecurityPrivilege	3064	TiWorker.exe
Token: SeBackupPrivilege	3064	TiWorker.exe
Token: SeRestorePrivilege	3064	TiWorker.exe
Token: SeSecurityPrivilege	3064	TiWorker.exe
Token: SeBackupPrivilege	3064	TiWorker.exe
Token: SeRestorePrivilege	3064	TiWorker.exe
Token: SeSecurityPrivilege	3064	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

1950b439ea74d9d4590ad87633e004e23bc2b2d4d4d270c7b0c3e2e4f9be6c04.execmd.exe

description	pid	process	target process
PID 4036 wrote to memory of 1220	4036	1950b439ea74d9d4590ad87633e004e23bc2b2d4d4d270c7b0c3e2e4f9be6c04.exe	MediaCenter.exe
PID 4036 wrote to memory of 1220	4036	1950b439ea74d9d4590ad87633e004e23bc2b2d4d4d270c7b0c3e2e4f9be6c04.exe	MediaCenter.exe
PID 4036 wrote to memory of 1220	4036	1950b439ea74d9d4590ad87633e004e23bc2b2d4d4d270c7b0c3e2e4f9be6c04.exe	MediaCenter.exe
PID 4036 wrote to memory of 3840	4036	1950b439ea74d9d4590ad87633e004e23bc2b2d4d4d270c7b0c3e2e4f9be6c04.exe	cmd.exe
PID 4036 wrote to memory of 3840	4036	1950b439ea74d9d4590ad87633e004e23bc2b2d4d4d270c7b0c3e2e4f9be6c04.exe	cmd.exe
PID 4036 wrote to memory of 3840	4036	1950b439ea74d9d4590ad87633e004e23bc2b2d4d4d270c7b0c3e2e4f9be6c04.exe	cmd.exe
PID 3840 wrote to memory of 3760	3840	cmd.exe	PING.EXE
PID 3840 wrote to memory of 3760	3840	cmd.exe	PING.EXE
PID 3840 wrote to memory of 3760	3840	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\1950b439ea74d9d4590ad87633e004e23bc2b2d4d4d270c7b0c3e2e4f9be6c04.exe
"C:\Users\Admin\AppData\Local\Temp\1950b439ea74d9d4590ad87633e004e23bc2b2d4d4d270c7b0c3e2e4f9be6c04.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4036

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:1220

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\1950b439ea74d9d4590ad87633e004e23bc2b2d4d4d270c7b0c3e2e4f9be6c04.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3840

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:3760

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:3480

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:3768

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:3064

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
58b76a404c735e87244bbb7cfad4645f

SHA1
1eaf8bb0817e790f7ca924ce0780d4ad6f81b4dd

SHA256
f72056bf2691a6a0f8690ff765feb2eacffff8437be08d9c656ca8eaba0868ca

SHA512
3b9489b0f2d5240a01190c1edda4c8f345c76f88bbd1fab6274afb6f45fc0bea1410a84e0770a2171e030133af02a27ae26b542131c1dee85bb74bd11b407dc1

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

MD5
58b76a404c735e87244bbb7cfad4645f

SHA1
1eaf8bb0817e790f7ca924ce0780d4ad6f81b4dd

SHA256
f72056bf2691a6a0f8690ff765feb2eacffff8437be08d9c656ca8eaba0868ca

SHA512
3b9489b0f2d5240a01190c1edda4c8f345c76f88bbd1fab6274afb6f45fc0bea1410a84e0770a2171e030133af02a27ae26b542131c1dee85bb74bd11b407dc1

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads