sakula | 16624b8d3631eb6ca5f721a1ff875bf28c33bcf933bc0d3903868bf5cbd83dbc

General

Target

16624b8d3631eb6ca5f721a1ff875bf28c33bcf933bc0d3903868bf5cbd83dbc.exe
Size

80KB
MD5

ed8bf94ea3692f43c7fb813f1b8d7625
SHA1

a7cd476b12addad3f4510b0ef16c72eebe105a05
SHA256

16624b8d3631eb6ca5f721a1ff875bf28c33bcf933bc0d3903868bf5cbd83dbc
SHA512

75d944c423a4d57c64680ed3f55a060b9c1356c471fe801bad944b627aa424e595934071307e19df89ccb9adb5e71a50c5b0e27bbc7c23b4dfc0f1b8b68b4d82

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

3696 MediaCenter.exe

pid	process
3696	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:

16624b8d3631eb6ca5f721a1ff875bf28c33bcf933bc0d3903868bf5cbd83dbc.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	16624b8d3631eb6ca5f721a1ff875bf28c33bcf933bc0d3903868bf5cbd83dbc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

16624b8d3631eb6ca5f721a1ff875bf28c33bcf933bc0d3903868bf5cbd83dbc.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"	16624b8d3631eb6ca5f721a1ff875bf28c33bcf933bc0d3903868bf5cbd83dbc.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\UploadRatePct = "100"	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\UplinkUsageBps = "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\CDNConnectionCount = "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\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\Config\DODownloadMode = "1"	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\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\MonthlyUploadRestriction = "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 = "0.561785"	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\SwarmCount = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4280"	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\Config\KVFileExpirationTime = "132892883366706878"	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\InternetConnectionCount = "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\DownloadMonthlyInternetBytes = "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\SwarmCount = "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\GroupConnectionCount = "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\NormalDownloadCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "3.431407"	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\DownloadMonthlyCacheHostBytes = "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\LANConnectionCount = "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\DownloadMonthlyRateBkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrCnt = "0"	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\LinkLocalConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4088"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\FrDownloadRatePct = "90"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "16.677910"	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\UploadMonthlyLanBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownlinkBps = "0"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

3460 PING.EXE

pid	process
3460	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

TiWorker.exe16624b8d3631eb6ca5f721a1ff875bf28c33bcf933bc0d3903868bf5cbd83dbc.exe

description	pid	process
Token: SeSecurityPrivilege	1576	TiWorker.exe
Token: SeRestorePrivilege	1576	TiWorker.exe
Token: SeBackupPrivilege	1576	TiWorker.exe
Token: SeIncBasePriorityPrivilege	3648	16624b8d3631eb6ca5f721a1ff875bf28c33bcf933bc0d3903868bf5cbd83dbc.exe
Token: SeBackupPrivilege	1576	TiWorker.exe
Token: SeRestorePrivilege	1576	TiWorker.exe
Token: SeSecurityPrivilege	1576	TiWorker.exe
Token: SeBackupPrivilege	1576	TiWorker.exe
Token: SeRestorePrivilege	1576	TiWorker.exe
Token: SeSecurityPrivilege	1576	TiWorker.exe
Token: SeBackupPrivilege	1576	TiWorker.exe
Token: SeRestorePrivilege	1576	TiWorker.exe
Token: SeSecurityPrivilege	1576	TiWorker.exe
Token: SeBackupPrivilege	1576	TiWorker.exe
Token: SeRestorePrivilege	1576	TiWorker.exe
Token: SeSecurityPrivilege	1576	TiWorker.exe
Token: SeBackupPrivilege	1576	TiWorker.exe
Token: SeRestorePrivilege	1576	TiWorker.exe
Token: SeSecurityPrivilege	1576	TiWorker.exe
Token: SeBackupPrivilege	1576	TiWorker.exe
Token: SeRestorePrivilege	1576	TiWorker.exe
Token: SeSecurityPrivilege	1576	TiWorker.exe
Token: SeBackupPrivilege	1576	TiWorker.exe
Token: SeRestorePrivilege	1576	TiWorker.exe
Token: SeSecurityPrivilege	1576	TiWorker.exe
Token: SeBackupPrivilege	1576	TiWorker.exe
Token: SeRestorePrivilege	1576	TiWorker.exe
Token: SeSecurityPrivilege	1576	TiWorker.exe
Token: SeBackupPrivilege	1576	TiWorker.exe
Token: SeRestorePrivilege	1576	TiWorker.exe
Token: SeSecurityPrivilege	1576	TiWorker.exe
Token: SeBackupPrivilege	1576	TiWorker.exe
Token: SeRestorePrivilege	1576	TiWorker.exe
Token: SeSecurityPrivilege	1576	TiWorker.exe
Token: SeBackupPrivilege	1576	TiWorker.exe
Token: SeRestorePrivilege	1576	TiWorker.exe
Token: SeSecurityPrivilege	1576	TiWorker.exe
Token: SeBackupPrivilege	1576	TiWorker.exe
Token: SeRestorePrivilege	1576	TiWorker.exe
Token: SeSecurityPrivilege	1576	TiWorker.exe
Token: SeBackupPrivilege	1576	TiWorker.exe
Token: SeRestorePrivilege	1576	TiWorker.exe
Token: SeSecurityPrivilege	1576	TiWorker.exe
Token: SeBackupPrivilege	1576	TiWorker.exe
Token: SeRestorePrivilege	1576	TiWorker.exe
Token: SeSecurityPrivilege	1576	TiWorker.exe
Token: SeBackupPrivilege	1576	TiWorker.exe
Token: SeRestorePrivilege	1576	TiWorker.exe
Token: SeSecurityPrivilege	1576	TiWorker.exe
Token: SeBackupPrivilege	1576	TiWorker.exe
Token: SeRestorePrivilege	1576	TiWorker.exe
Token: SeSecurityPrivilege	1576	TiWorker.exe
Token: SeBackupPrivilege	1576	TiWorker.exe
Token: SeRestorePrivilege	1576	TiWorker.exe
Token: SeSecurityPrivilege	1576	TiWorker.exe
Token: SeBackupPrivilege	1576	TiWorker.exe
Token: SeRestorePrivilege	1576	TiWorker.exe
Token: SeSecurityPrivilege	1576	TiWorker.exe
Token: SeBackupPrivilege	1576	TiWorker.exe
Token: SeRestorePrivilege	1576	TiWorker.exe
Token: SeSecurityPrivilege	1576	TiWorker.exe
Token: SeBackupPrivilege	1576	TiWorker.exe
Token: SeRestorePrivilege	1576	TiWorker.exe
Token: SeSecurityPrivilege	1576	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

16624b8d3631eb6ca5f721a1ff875bf28c33bcf933bc0d3903868bf5cbd83dbc.execmd.exe

description	pid	process	target process
PID 3648 wrote to memory of 3696	3648	16624b8d3631eb6ca5f721a1ff875bf28c33bcf933bc0d3903868bf5cbd83dbc.exe	MediaCenter.exe
PID 3648 wrote to memory of 3696	3648	16624b8d3631eb6ca5f721a1ff875bf28c33bcf933bc0d3903868bf5cbd83dbc.exe	MediaCenter.exe
PID 3648 wrote to memory of 3696	3648	16624b8d3631eb6ca5f721a1ff875bf28c33bcf933bc0d3903868bf5cbd83dbc.exe	MediaCenter.exe
PID 3648 wrote to memory of 3416	3648	16624b8d3631eb6ca5f721a1ff875bf28c33bcf933bc0d3903868bf5cbd83dbc.exe	cmd.exe
PID 3648 wrote to memory of 3416	3648	16624b8d3631eb6ca5f721a1ff875bf28c33bcf933bc0d3903868bf5cbd83dbc.exe	cmd.exe
PID 3648 wrote to memory of 3416	3648	16624b8d3631eb6ca5f721a1ff875bf28c33bcf933bc0d3903868bf5cbd83dbc.exe	cmd.exe
PID 3416 wrote to memory of 3460	3416	cmd.exe	PING.EXE
PID 3416 wrote to memory of 3460	3416	cmd.exe	PING.EXE
PID 3416 wrote to memory of 3460	3416	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\16624b8d3631eb6ca5f721a1ff875bf28c33bcf933bc0d3903868bf5cbd83dbc.exe
"C:\Users\Admin\AppData\Local\Temp\16624b8d3631eb6ca5f721a1ff875bf28c33bcf933bc0d3903868bf5cbd83dbc.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3648

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:3696

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\16624b8d3631eb6ca5f721a1ff875bf28c33bcf933bc0d3903868bf5cbd83dbc.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3416

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:3460

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 0
1⤵
- Checks processor information in registry
PID:1348

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:3832

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:1576

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
9db4b26df201538e9e119997511ca667

SHA1
85b91de0bba5f87b8b5f3928d758e0034d4046fc

SHA256
6e372a65783dc1b42dd95c25950ef653e7e552f3c6187394ad96e29d4d176c25

SHA512
22d54995d68a8d3fdc48af14e88da2d7b1b509f0406192b8993ddcfb0899bf6b8a18be39803a36a9a040792d25afd29f337c2835f952f12798322eb61a513fca

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

MD5
9db4b26df201538e9e119997511ca667

SHA1
85b91de0bba5f87b8b5f3928d758e0034d4046fc

SHA256
6e372a65783dc1b42dd95c25950ef653e7e552f3c6187394ad96e29d4d176c25

SHA512
22d54995d68a8d3fdc48af14e88da2d7b1b509f0406192b8993ddcfb0899bf6b8a18be39803a36a9a040792d25afd29f337c2835f952f12798322eb61a513fca

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads