sakula | 188bea33b9aa52315eca9c5dcc3e66c835378528ab6ff23defeeae90d52cc564

General

Target

188bea33b9aa52315eca9c5dcc3e66c835378528ab6ff23defeeae90d52cc564.exe
Size

216KB
MD5

4cfa10f30c3d09c1d441c35ad3b055ce
SHA1

d6cb76b9986e9b5669ddf0f00743c5ff8e62da54
SHA256

188bea33b9aa52315eca9c5dcc3e66c835378528ab6ff23defeeae90d52cc564
SHA512

876c4e7cb813450cf5ec17aeca9cd609627ccb82f8c39239c2d5ef465722ec3af91fd1b36566ea6430310d125f4800896cfa7c4d3970b8b39a8890f9021ff21b

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 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/3564-132-0x0000000000400000-0x0000000000420000-memory.dmp	family_sakula
behavioral2/memory/1208-133-0x0000000000400000-0x0000000000420000-memory.dmp	family_sakula

Executes dropped EXE 1 IoCs

Processes:

MediaCenter.exe

pid process

1208 MediaCenter.exe

pid	process
1208	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:

188bea33b9aa52315eca9c5dcc3e66c835378528ab6ff23defeeae90d52cc564.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	188bea33b9aa52315eca9c5dcc3e66c835378528ab6ff23defeeae90d52cc564.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

188bea33b9aa52315eca9c5dcc3e66c835378528ab6ff23defeeae90d52cc564.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"	188bea33b9aa52315eca9c5dcc3e66c835378528ab6ff23defeeae90d52cc564.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	MusNotifyIcon.exe
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	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\DownloadMonthlyGroupBytes = "0"	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 = "0.000000"	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\Config\KVFileExpirationTime = "132892853354047649"	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\UplinkUsageBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthlyUploadRestriction = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "1.132094"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4308"	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\UploadMonthlyLanBytes = "0"	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\MonthID = "2"	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\DownlinkBps = "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\DODownloadMode = "1"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "6.521790"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadCount = "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\Settings	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\DownlinkUsageBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadPendingCount = "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\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\LinkLocalConnectionCount = "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\NormalDownloadPendingCount = "0"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage	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\PriorityDownloadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4124"	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\CDNConnectionCount = "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\DownloadMonthlyCdnBytes = "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\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\CacheSizeBytes = "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\UplinkBps = "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\SwarmCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadRatePct = "100"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

2748 PING.EXE

pid	process
2748	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

188bea33b9aa52315eca9c5dcc3e66c835378528ab6ff23defeeae90d52cc564.exeTiWorker.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	3564	188bea33b9aa52315eca9c5dcc3e66c835378528ab6ff23defeeae90d52cc564.exe
Token: SeSecurityPrivilege	2544	TiWorker.exe
Token: SeRestorePrivilege	2544	TiWorker.exe
Token: SeBackupPrivilege	2544	TiWorker.exe
Token: SeBackupPrivilege	2544	TiWorker.exe
Token: SeRestorePrivilege	2544	TiWorker.exe
Token: SeSecurityPrivilege	2544	TiWorker.exe
Token: SeBackupPrivilege	2544	TiWorker.exe
Token: SeRestorePrivilege	2544	TiWorker.exe
Token: SeSecurityPrivilege	2544	TiWorker.exe
Token: SeBackupPrivilege	2544	TiWorker.exe
Token: SeRestorePrivilege	2544	TiWorker.exe
Token: SeSecurityPrivilege	2544	TiWorker.exe
Token: SeBackupPrivilege	2544	TiWorker.exe
Token: SeRestorePrivilege	2544	TiWorker.exe
Token: SeSecurityPrivilege	2544	TiWorker.exe
Token: SeBackupPrivilege	2544	TiWorker.exe
Token: SeRestorePrivilege	2544	TiWorker.exe
Token: SeSecurityPrivilege	2544	TiWorker.exe
Token: SeBackupPrivilege	2544	TiWorker.exe
Token: SeRestorePrivilege	2544	TiWorker.exe
Token: SeSecurityPrivilege	2544	TiWorker.exe
Token: SeBackupPrivilege	2544	TiWorker.exe
Token: SeRestorePrivilege	2544	TiWorker.exe
Token: SeSecurityPrivilege	2544	TiWorker.exe
Token: SeBackupPrivilege	2544	TiWorker.exe
Token: SeRestorePrivilege	2544	TiWorker.exe
Token: SeSecurityPrivilege	2544	TiWorker.exe
Token: SeBackupPrivilege	2544	TiWorker.exe
Token: SeRestorePrivilege	2544	TiWorker.exe
Token: SeSecurityPrivilege	2544	TiWorker.exe
Token: SeBackupPrivilege	2544	TiWorker.exe
Token: SeRestorePrivilege	2544	TiWorker.exe
Token: SeSecurityPrivilege	2544	TiWorker.exe
Token: SeBackupPrivilege	2544	TiWorker.exe
Token: SeRestorePrivilege	2544	TiWorker.exe
Token: SeSecurityPrivilege	2544	TiWorker.exe
Token: SeBackupPrivilege	2544	TiWorker.exe
Token: SeRestorePrivilege	2544	TiWorker.exe
Token: SeSecurityPrivilege	2544	TiWorker.exe
Token: SeBackupPrivilege	2544	TiWorker.exe
Token: SeRestorePrivilege	2544	TiWorker.exe
Token: SeSecurityPrivilege	2544	TiWorker.exe
Token: SeBackupPrivilege	2544	TiWorker.exe
Token: SeRestorePrivilege	2544	TiWorker.exe
Token: SeSecurityPrivilege	2544	TiWorker.exe
Token: SeBackupPrivilege	2544	TiWorker.exe
Token: SeRestorePrivilege	2544	TiWorker.exe
Token: SeSecurityPrivilege	2544	TiWorker.exe
Token: SeBackupPrivilege	2544	TiWorker.exe
Token: SeRestorePrivilege	2544	TiWorker.exe
Token: SeSecurityPrivilege	2544	TiWorker.exe
Token: SeBackupPrivilege	2544	TiWorker.exe
Token: SeRestorePrivilege	2544	TiWorker.exe
Token: SeSecurityPrivilege	2544	TiWorker.exe
Token: SeBackupPrivilege	2544	TiWorker.exe
Token: SeRestorePrivilege	2544	TiWorker.exe
Token: SeSecurityPrivilege	2544	TiWorker.exe
Token: SeBackupPrivilege	2544	TiWorker.exe
Token: SeRestorePrivilege	2544	TiWorker.exe
Token: SeSecurityPrivilege	2544	TiWorker.exe
Token: SeBackupPrivilege	2544	TiWorker.exe
Token: SeRestorePrivilege	2544	TiWorker.exe
Token: SeSecurityPrivilege	2544	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

188bea33b9aa52315eca9c5dcc3e66c835378528ab6ff23defeeae90d52cc564.execmd.exe

description	pid	process	target process
PID 3564 wrote to memory of 1208	3564	188bea33b9aa52315eca9c5dcc3e66c835378528ab6ff23defeeae90d52cc564.exe	MediaCenter.exe
PID 3564 wrote to memory of 1208	3564	188bea33b9aa52315eca9c5dcc3e66c835378528ab6ff23defeeae90d52cc564.exe	MediaCenter.exe
PID 3564 wrote to memory of 1208	3564	188bea33b9aa52315eca9c5dcc3e66c835378528ab6ff23defeeae90d52cc564.exe	MediaCenter.exe
PID 3564 wrote to memory of 2140	3564	188bea33b9aa52315eca9c5dcc3e66c835378528ab6ff23defeeae90d52cc564.exe	cmd.exe
PID 3564 wrote to memory of 2140	3564	188bea33b9aa52315eca9c5dcc3e66c835378528ab6ff23defeeae90d52cc564.exe	cmd.exe
PID 3564 wrote to memory of 2140	3564	188bea33b9aa52315eca9c5dcc3e66c835378528ab6ff23defeeae90d52cc564.exe	cmd.exe
PID 2140 wrote to memory of 2748	2140	cmd.exe	PING.EXE
PID 2140 wrote to memory of 2748	2140	cmd.exe	PING.EXE
PID 2140 wrote to memory of 2748	2140	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\188bea33b9aa52315eca9c5dcc3e66c835378528ab6ff23defeeae90d52cc564.exe
"C:\Users\Admin\AppData\Local\Temp\188bea33b9aa52315eca9c5dcc3e66c835378528ab6ff23defeeae90d52cc564.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3564

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:1208

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\188bea33b9aa52315eca9c5dcc3e66c835378528ab6ff23defeeae90d52cc564.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:2140

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:2748

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:220

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:3476

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:2544

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
2319c104d738913a2ee30e4560ed3ca4

SHA1
13fade5945c34035c42fe1567dab731fc3b74f50

SHA256
ca525a713e6293750f84203d960cd1c2659e6f151dda67f7b13841f0908141b4

SHA512
ecc33acd41b291028336fff2bd8f8aead6031102b492e039c94668a98b0e664d34b1c0abea9d0ac6d042fa419113a0de552f78cd41b3b86f749e081c2638f31b

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

MD5
2319c104d738913a2ee30e4560ed3ca4

SHA1
13fade5945c34035c42fe1567dab731fc3b74f50

SHA256
ca525a713e6293750f84203d960cd1c2659e6f151dda67f7b13841f0908141b4

SHA512
ecc33acd41b291028336fff2bd8f8aead6031102b492e039c94668a98b0e664d34b1c0abea9d0ac6d042fa419113a0de552f78cd41b3b86f749e081c2638f31b

Download Submit
memory/1208-133-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/3564-132-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads