sakula | 137ce83e0c77d4b811446aa6193cae1725997ac39813ae380c726feafd64138c

General

Target

137ce83e0c77d4b811446aa6193cae1725997ac39813ae380c726feafd64138c.exe
Size

58KB
MD5

1c98b2119d6686b06c3c3b2c7150fd80
SHA1

72c201d5008057bc6f823e07823be9432ffdff73
SHA256

137ce83e0c77d4b811446aa6193cae1725997ac39813ae380c726feafd64138c
SHA512

259c6ee34426136480bfde6cf102f69fea711cb521b3e5a75b4d455a17e9422824f8ce4af10d352eee1568a61a7561f5434b98457a00a4cfa4cf66c8bc8a5b00

Score

10^/10

sakula persistence rat trojan

Malware Config

Signatures

Sakula
Sakula is a remote access trojan with various capabilities.
trojan rat sakula
Executes dropped EXE 1 IoCs

Processes:

MediaCenter.exe

pid process

3084 MediaCenter.exe

pid	process
3084	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:

137ce83e0c77d4b811446aa6193cae1725997ac39813ae380c726feafd64138c.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	137ce83e0c77d4b811446aa6193cae1725997ac39813ae380c726feafd64138c.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

137ce83e0c77d4b811446aa6193cae1725997ac39813ae380c726feafd64138c.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"	137ce83e0c77d4b811446aa6193cae1725997ac39813ae380c726feafd64138c.exe

Drops file in Windows directory 3 IoCs

Processes:

TiWorker.exesvchost.exe

description	ioc	process
File opened for modification	C:\Windows\WinSxS\pending.xml	TiWorker.exe
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

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 54 IoCs

Processes:

svchost.exe

description	ioc	process
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\MonthID = "2"	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\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 (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "8.694680"	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\DODownloadMode = "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\MemoryUsageKB = "4352"	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\PeerInfoCount = "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\CacheSizeBytes = "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\UploadRatePct = "100"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "6.251160"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "3.921640"	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\MonthID = "1"	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\Config\DownloadMode_BackCompat = "1"	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\DownlinkBps = "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\UplinkUsageBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4096"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLanBytes = "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 (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 (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\PriorityDownloadPendingCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkBps = "1157726"	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\Settings	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\UploadMonthlyInternetBytes = "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\SwarmCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132892927063442386"	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 = "4"	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\DownloadMonthlyCdnBytes = "90228624"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4348"	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\DownloadMonthlyRateBkCnt = "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\UplinkBps = "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\LinkLocalConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\InternetConnectionCount = "0"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1104 PING.EXE

pid	process
1104	PING.EXE

Suspicious use of AdjustPrivilegeToken 49 IoCs

Processes:

137ce83e0c77d4b811446aa6193cae1725997ac39813ae380c726feafd64138c.exeTiWorker.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	1332	137ce83e0c77d4b811446aa6193cae1725997ac39813ae380c726feafd64138c.exe
Token: SeSecurityPrivilege	2948	TiWorker.exe
Token: SeRestorePrivilege	2948	TiWorker.exe
Token: SeBackupPrivilege	2948	TiWorker.exe
Token: SeBackupPrivilege	2948	TiWorker.exe
Token: SeRestorePrivilege	2948	TiWorker.exe
Token: SeSecurityPrivilege	2948	TiWorker.exe
Token: SeBackupPrivilege	2948	TiWorker.exe
Token: SeRestorePrivilege	2948	TiWorker.exe
Token: SeSecurityPrivilege	2948	TiWorker.exe
Token: SeBackupPrivilege	2948	TiWorker.exe
Token: SeRestorePrivilege	2948	TiWorker.exe
Token: SeSecurityPrivilege	2948	TiWorker.exe
Token: SeBackupPrivilege	2948	TiWorker.exe
Token: SeRestorePrivilege	2948	TiWorker.exe
Token: SeSecurityPrivilege	2948	TiWorker.exe
Token: SeBackupPrivilege	2948	TiWorker.exe
Token: SeRestorePrivilege	2948	TiWorker.exe
Token: SeSecurityPrivilege	2948	TiWorker.exe
Token: SeBackupPrivilege	2948	TiWorker.exe
Token: SeRestorePrivilege	2948	TiWorker.exe
Token: SeSecurityPrivilege	2948	TiWorker.exe
Token: SeBackupPrivilege	2948	TiWorker.exe
Token: SeRestorePrivilege	2948	TiWorker.exe
Token: SeSecurityPrivilege	2948	TiWorker.exe
Token: SeBackupPrivilege	2948	TiWorker.exe
Token: SeRestorePrivilege	2948	TiWorker.exe
Token: SeSecurityPrivilege	2948	TiWorker.exe
Token: SeBackupPrivilege	2948	TiWorker.exe
Token: SeRestorePrivilege	2948	TiWorker.exe
Token: SeSecurityPrivilege	2948	TiWorker.exe
Token: SeBackupPrivilege	2948	TiWorker.exe
Token: SeRestorePrivilege	2948	TiWorker.exe
Token: SeSecurityPrivilege	2948	TiWorker.exe
Token: SeBackupPrivilege	2948	TiWorker.exe
Token: SeRestorePrivilege	2948	TiWorker.exe
Token: SeSecurityPrivilege	2948	TiWorker.exe
Token: SeBackupPrivilege	2948	TiWorker.exe
Token: SeRestorePrivilege	2948	TiWorker.exe
Token: SeSecurityPrivilege	2948	TiWorker.exe
Token: SeBackupPrivilege	2948	TiWorker.exe
Token: SeRestorePrivilege	2948	TiWorker.exe
Token: SeSecurityPrivilege	2948	TiWorker.exe
Token: SeBackupPrivilege	2948	TiWorker.exe
Token: SeRestorePrivilege	2948	TiWorker.exe
Token: SeSecurityPrivilege	2948	TiWorker.exe
Token: SeBackupPrivilege	2948	TiWorker.exe
Token: SeRestorePrivilege	2948	TiWorker.exe
Token: SeSecurityPrivilege	2948	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

137ce83e0c77d4b811446aa6193cae1725997ac39813ae380c726feafd64138c.execmd.exe

description	pid	process	target process
PID 1332 wrote to memory of 3084	1332	137ce83e0c77d4b811446aa6193cae1725997ac39813ae380c726feafd64138c.exe	MediaCenter.exe
PID 1332 wrote to memory of 3084	1332	137ce83e0c77d4b811446aa6193cae1725997ac39813ae380c726feafd64138c.exe	MediaCenter.exe
PID 1332 wrote to memory of 3084	1332	137ce83e0c77d4b811446aa6193cae1725997ac39813ae380c726feafd64138c.exe	MediaCenter.exe
PID 1332 wrote to memory of 3580	1332	137ce83e0c77d4b811446aa6193cae1725997ac39813ae380c726feafd64138c.exe	cmd.exe
PID 1332 wrote to memory of 3580	1332	137ce83e0c77d4b811446aa6193cae1725997ac39813ae380c726feafd64138c.exe	cmd.exe
PID 1332 wrote to memory of 3580	1332	137ce83e0c77d4b811446aa6193cae1725997ac39813ae380c726feafd64138c.exe	cmd.exe
PID 3580 wrote to memory of 1104	3580	cmd.exe	PING.EXE
PID 3580 wrote to memory of 1104	3580	cmd.exe	PING.EXE
PID 3580 wrote to memory of 1104	3580	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\137ce83e0c77d4b811446aa6193cae1725997ac39813ae380c726feafd64138c.exe
"C:\Users\Admin\AppData\Local\Temp\137ce83e0c77d4b811446aa6193cae1725997ac39813ae380c726feafd64138c.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1332

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:3084

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\137ce83e0c77d4b811446aa6193cae1725997ac39813ae380c726feafd64138c.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3580

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:1104

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:2056

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:1668

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:2948

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
7d681b31cc768de5ac7f2997ccf0254f

SHA1
51d7109fdb1dcc35e02f81a653bc3fc1623f248a

SHA256
9c12056c5bb4ec6925b369450da41c7788a4407aa412e7993577490b84e0dc29

SHA512
668cde7775ca24df0156a3536ea2d442963cff6458f9341cb6712ac985ca41a0c208401ae3884de019215c2d892547b4c656eefe5ac47ea45e60a8471b13b256

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

MD5
7d681b31cc768de5ac7f2997ccf0254f

SHA1
51d7109fdb1dcc35e02f81a653bc3fc1623f248a

SHA256
9c12056c5bb4ec6925b369450da41c7788a4407aa412e7993577490b84e0dc29

SHA512
668cde7775ca24df0156a3536ea2d442963cff6458f9341cb6712ac985ca41a0c208401ae3884de019215c2d892547b4c656eefe5ac47ea45e60a8471b13b256

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads