sakula | 18c1b96f4d5d2469afdb0044ccd295b3654f123571c255d0367e2274ee797124

General

Target

18c1b96f4d5d2469afdb0044ccd295b3654f123571c255d0367e2274ee797124.exe
Size

101KB
MD5

b6ac54687eca082135b2c9db71e6052e
SHA1

d9f81879fccf7dcb33c79593a1a7c44df298aa31
SHA256

18c1b96f4d5d2469afdb0044ccd295b3654f123571c255d0367e2274ee797124
SHA512

7bbc1ea855a2957b1be1812b5f12c02300a3334d148b98446a359d1a67c3e8d8056bf26fa2d4d97f3bc3690dac2c491e5558b714f33e1f9cf62777f5052bcc5b

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

1416 MediaCenter.exe

pid	process
1416	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:

18c1b96f4d5d2469afdb0044ccd295b3654f123571c255d0367e2274ee797124.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	18c1b96f4d5d2469afdb0044ccd295b3654f123571c255d0367e2274ee797124.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

18c1b96f4d5d2469afdb0044ccd295b3654f123571c255d0367e2274ee797124.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"	18c1b96f4d5d2469afdb0044ccd295b3654f123571c255d0367e2274ee797124.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\DownloadMonthlyInternetBytes = "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\MonthID = "2"	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
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\DownlinkUsageBps = "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\PriorityDownloadCount = "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\LinkLocalConnectionCount = "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\DownloadMonthlyLanBytes = "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\DownloadMonthlyRateFrCnt = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkCnt = "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\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\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\PriorityDownloadPendingCount = "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\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\CacheSizeBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4152"	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\MonthlyUploadRestriction = "0"	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
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\UplinkBps = "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\NormalDownloadCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "1.648340"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4352"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "4.167429"	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
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\PeerInfoCount = "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\UploadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadPendingCount = "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\Config\KVFileExpirationTime = "132892850026253240"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "1"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

2308 PING.EXE

pid	process
2308	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

18c1b96f4d5d2469afdb0044ccd295b3654f123571c255d0367e2274ee797124.exeTiWorker.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	956	18c1b96f4d5d2469afdb0044ccd295b3654f123571c255d0367e2274ee797124.exe
Token: SeSecurityPrivilege	636	TiWorker.exe
Token: SeRestorePrivilege	636	TiWorker.exe
Token: SeBackupPrivilege	636	TiWorker.exe
Token: SeBackupPrivilege	636	TiWorker.exe
Token: SeRestorePrivilege	636	TiWorker.exe
Token: SeSecurityPrivilege	636	TiWorker.exe
Token: SeBackupPrivilege	636	TiWorker.exe
Token: SeRestorePrivilege	636	TiWorker.exe
Token: SeSecurityPrivilege	636	TiWorker.exe
Token: SeBackupPrivilege	636	TiWorker.exe
Token: SeRestorePrivilege	636	TiWorker.exe
Token: SeSecurityPrivilege	636	TiWorker.exe
Token: SeBackupPrivilege	636	TiWorker.exe
Token: SeRestorePrivilege	636	TiWorker.exe
Token: SeSecurityPrivilege	636	TiWorker.exe
Token: SeBackupPrivilege	636	TiWorker.exe
Token: SeRestorePrivilege	636	TiWorker.exe
Token: SeSecurityPrivilege	636	TiWorker.exe
Token: SeBackupPrivilege	636	TiWorker.exe
Token: SeRestorePrivilege	636	TiWorker.exe
Token: SeSecurityPrivilege	636	TiWorker.exe
Token: SeBackupPrivilege	636	TiWorker.exe
Token: SeRestorePrivilege	636	TiWorker.exe
Token: SeSecurityPrivilege	636	TiWorker.exe
Token: SeBackupPrivilege	636	TiWorker.exe
Token: SeRestorePrivilege	636	TiWorker.exe
Token: SeSecurityPrivilege	636	TiWorker.exe
Token: SeBackupPrivilege	636	TiWorker.exe
Token: SeRestorePrivilege	636	TiWorker.exe
Token: SeSecurityPrivilege	636	TiWorker.exe
Token: SeBackupPrivilege	636	TiWorker.exe
Token: SeRestorePrivilege	636	TiWorker.exe
Token: SeSecurityPrivilege	636	TiWorker.exe
Token: SeBackupPrivilege	636	TiWorker.exe
Token: SeRestorePrivilege	636	TiWorker.exe
Token: SeSecurityPrivilege	636	TiWorker.exe
Token: SeBackupPrivilege	636	TiWorker.exe
Token: SeRestorePrivilege	636	TiWorker.exe
Token: SeSecurityPrivilege	636	TiWorker.exe
Token: SeBackupPrivilege	636	TiWorker.exe
Token: SeRestorePrivilege	636	TiWorker.exe
Token: SeSecurityPrivilege	636	TiWorker.exe
Token: SeBackupPrivilege	636	TiWorker.exe
Token: SeRestorePrivilege	636	TiWorker.exe
Token: SeSecurityPrivilege	636	TiWorker.exe
Token: SeBackupPrivilege	636	TiWorker.exe
Token: SeRestorePrivilege	636	TiWorker.exe
Token: SeSecurityPrivilege	636	TiWorker.exe
Token: SeBackupPrivilege	636	TiWorker.exe
Token: SeRestorePrivilege	636	TiWorker.exe
Token: SeSecurityPrivilege	636	TiWorker.exe
Token: SeBackupPrivilege	636	TiWorker.exe
Token: SeRestorePrivilege	636	TiWorker.exe
Token: SeSecurityPrivilege	636	TiWorker.exe
Token: SeBackupPrivilege	636	TiWorker.exe
Token: SeRestorePrivilege	636	TiWorker.exe
Token: SeSecurityPrivilege	636	TiWorker.exe
Token: SeBackupPrivilege	636	TiWorker.exe
Token: SeRestorePrivilege	636	TiWorker.exe
Token: SeSecurityPrivilege	636	TiWorker.exe
Token: SeBackupPrivilege	636	TiWorker.exe
Token: SeRestorePrivilege	636	TiWorker.exe
Token: SeSecurityPrivilege	636	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

18c1b96f4d5d2469afdb0044ccd295b3654f123571c255d0367e2274ee797124.execmd.exe

description	pid	process	target process
PID 956 wrote to memory of 1416	956	18c1b96f4d5d2469afdb0044ccd295b3654f123571c255d0367e2274ee797124.exe	MediaCenter.exe
PID 956 wrote to memory of 1416	956	18c1b96f4d5d2469afdb0044ccd295b3654f123571c255d0367e2274ee797124.exe	MediaCenter.exe
PID 956 wrote to memory of 1416	956	18c1b96f4d5d2469afdb0044ccd295b3654f123571c255d0367e2274ee797124.exe	MediaCenter.exe
PID 956 wrote to memory of 3976	956	18c1b96f4d5d2469afdb0044ccd295b3654f123571c255d0367e2274ee797124.exe	cmd.exe
PID 956 wrote to memory of 3976	956	18c1b96f4d5d2469afdb0044ccd295b3654f123571c255d0367e2274ee797124.exe	cmd.exe
PID 956 wrote to memory of 3976	956	18c1b96f4d5d2469afdb0044ccd295b3654f123571c255d0367e2274ee797124.exe	cmd.exe
PID 3976 wrote to memory of 2308	3976	cmd.exe	PING.EXE
PID 3976 wrote to memory of 2308	3976	cmd.exe	PING.EXE
PID 3976 wrote to memory of 2308	3976	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\18c1b96f4d5d2469afdb0044ccd295b3654f123571c255d0367e2274ee797124.exe
"C:\Users\Admin\AppData\Local\Temp\18c1b96f4d5d2469afdb0044ccd295b3654f123571c255d0367e2274ee797124.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:956

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:1416

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\18c1b96f4d5d2469afdb0044ccd295b3654f123571c255d0367e2274ee797124.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3976

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:2308

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:3672

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:3532

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:636

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
1c77f640a35732f06ed899234b615262

SHA1
03c2c4f0f2200e3c4bb97edcb9521d9d628bceb5

SHA256
03cc9ad3ce65c870d5b3e81122e71f98e40ea3309bbe0150da771a40aa230965

SHA512
00cf3c005e42caea678311ead5c014b97f51e9df82e9212382dd1b80f44ec03e94fa7f42ba4e7dad30c01d8dd4aa5d43284b5875b8279544c702c99853c93cdb

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

MD5
1c77f640a35732f06ed899234b615262

SHA1
03c2c4f0f2200e3c4bb97edcb9521d9d628bceb5

SHA256
03cc9ad3ce65c870d5b3e81122e71f98e40ea3309bbe0150da771a40aa230965

SHA512
00cf3c005e42caea678311ead5c014b97f51e9df82e9212382dd1b80f44ec03e94fa7f42ba4e7dad30c01d8dd4aa5d43284b5875b8279544c702c99853c93cdb

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads