sakula | 1591561d3896de7a821fdc18715334d6bbdfaaffb53e9bcd141484cbf9f25b06

General

Target

1591561d3896de7a821fdc18715334d6bbdfaaffb53e9bcd141484cbf9f25b06.exe
Size

60KB
MD5

21647921c9d30dcdc96c4d81dd6b49cb
SHA1

de052a18f528b75f33f4ccf804302cf616c2bc0d
SHA256

1591561d3896de7a821fdc18715334d6bbdfaaffb53e9bcd141484cbf9f25b06
SHA512

a128fed5d634daec1f74f07cf40ed7175c93f993bb5c209b8006f58197df861b7302eba415ed7eaf39f662f34bb743e274c2db586f19aba1d64980f3aeb2a0d8

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

2720 MediaCenter.exe

pid	process
2720	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:

1591561d3896de7a821fdc18715334d6bbdfaaffb53e9bcd141484cbf9f25b06.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	1591561d3896de7a821fdc18715334d6bbdfaaffb53e9bcd141484cbf9f25b06.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

1591561d3896de7a821fdc18715334d6bbdfaaffb53e9bcd141484cbf9f25b06.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"	1591561d3896de7a821fdc18715334d6bbdfaaffb53e9bcd141484cbf9f25b06.exe

Drops file in Windows directory 3 IoCs

Processes:

TiWorker.exesvchost.exe

description	ioc	process
File opened for modification	C:\Windows\Logs\CBS\CBS.log	TiWorker.exe
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

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 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

MusNotifyIcon.exeMusNotifyIcon.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
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 50 IoCs

Processes:

svchost.exe

description	ioc	process
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\LinkLocalConnectionCount = "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\FrDownloadRatePct = "90"	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\GroupConnectionCount = "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\BkDownloadRatePct = "45"	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\NormalDownloadPendingCount = "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\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\UplinkUsageBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4312"	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\DODownloadMode = "1"	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\Config\KVFileExpirationTime = "132892896528496103"	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\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\DownloadMonthlyInternetBytes = "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\DownloadMonthlyGroupBytes = "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\NormalDownloadCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "1.648402"	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\Usage	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\DownloadMonthlyLinkLocalBytes = "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 (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
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\DownloadMonthlyCdnBytes = "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\MemoryUsageKB = "4104"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4120"	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\PeerInfoCount = "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\MonthlyUploadRestriction = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.197628"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.025075"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

4184 PING.EXE

pid	process
4184	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

1591561d3896de7a821fdc18715334d6bbdfaaffb53e9bcd141484cbf9f25b06.exeTiWorker.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	3776	1591561d3896de7a821fdc18715334d6bbdfaaffb53e9bcd141484cbf9f25b06.exe
Token: SeSecurityPrivilege	4464	TiWorker.exe
Token: SeRestorePrivilege	4464	TiWorker.exe
Token: SeBackupPrivilege	4464	TiWorker.exe
Token: SeBackupPrivilege	4464	TiWorker.exe
Token: SeRestorePrivilege	4464	TiWorker.exe
Token: SeSecurityPrivilege	4464	TiWorker.exe
Token: SeBackupPrivilege	4464	TiWorker.exe
Token: SeRestorePrivilege	4464	TiWorker.exe
Token: SeSecurityPrivilege	4464	TiWorker.exe
Token: SeBackupPrivilege	4464	TiWorker.exe
Token: SeRestorePrivilege	4464	TiWorker.exe
Token: SeSecurityPrivilege	4464	TiWorker.exe
Token: SeBackupPrivilege	4464	TiWorker.exe
Token: SeRestorePrivilege	4464	TiWorker.exe
Token: SeSecurityPrivilege	4464	TiWorker.exe
Token: SeBackupPrivilege	4464	TiWorker.exe
Token: SeRestorePrivilege	4464	TiWorker.exe
Token: SeSecurityPrivilege	4464	TiWorker.exe
Token: SeBackupPrivilege	4464	TiWorker.exe
Token: SeRestorePrivilege	4464	TiWorker.exe
Token: SeSecurityPrivilege	4464	TiWorker.exe
Token: SeBackupPrivilege	4464	TiWorker.exe
Token: SeRestorePrivilege	4464	TiWorker.exe
Token: SeSecurityPrivilege	4464	TiWorker.exe
Token: SeBackupPrivilege	4464	TiWorker.exe
Token: SeRestorePrivilege	4464	TiWorker.exe
Token: SeSecurityPrivilege	4464	TiWorker.exe
Token: SeBackupPrivilege	4464	TiWorker.exe
Token: SeRestorePrivilege	4464	TiWorker.exe
Token: SeSecurityPrivilege	4464	TiWorker.exe
Token: SeBackupPrivilege	4464	TiWorker.exe
Token: SeRestorePrivilege	4464	TiWorker.exe
Token: SeSecurityPrivilege	4464	TiWorker.exe
Token: SeBackupPrivilege	4464	TiWorker.exe
Token: SeRestorePrivilege	4464	TiWorker.exe
Token: SeSecurityPrivilege	4464	TiWorker.exe
Token: SeBackupPrivilege	4464	TiWorker.exe
Token: SeRestorePrivilege	4464	TiWorker.exe
Token: SeSecurityPrivilege	4464	TiWorker.exe
Token: SeBackupPrivilege	4464	TiWorker.exe
Token: SeRestorePrivilege	4464	TiWorker.exe
Token: SeSecurityPrivilege	4464	TiWorker.exe
Token: SeBackupPrivilege	4464	TiWorker.exe
Token: SeRestorePrivilege	4464	TiWorker.exe
Token: SeSecurityPrivilege	4464	TiWorker.exe
Token: SeBackupPrivilege	4464	TiWorker.exe
Token: SeRestorePrivilege	4464	TiWorker.exe
Token: SeSecurityPrivilege	4464	TiWorker.exe
Token: SeBackupPrivilege	4464	TiWorker.exe
Token: SeRestorePrivilege	4464	TiWorker.exe
Token: SeSecurityPrivilege	4464	TiWorker.exe
Token: SeBackupPrivilege	4464	TiWorker.exe
Token: SeRestorePrivilege	4464	TiWorker.exe
Token: SeSecurityPrivilege	4464	TiWorker.exe
Token: SeBackupPrivilege	4464	TiWorker.exe
Token: SeRestorePrivilege	4464	TiWorker.exe
Token: SeSecurityPrivilege	4464	TiWorker.exe
Token: SeBackupPrivilege	4464	TiWorker.exe
Token: SeRestorePrivilege	4464	TiWorker.exe
Token: SeSecurityPrivilege	4464	TiWorker.exe
Token: SeBackupPrivilege	4464	TiWorker.exe
Token: SeRestorePrivilege	4464	TiWorker.exe
Token: SeSecurityPrivilege	4464	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

1591561d3896de7a821fdc18715334d6bbdfaaffb53e9bcd141484cbf9f25b06.execmd.exe

description	pid	process	target process
PID 3776 wrote to memory of 2720	3776	1591561d3896de7a821fdc18715334d6bbdfaaffb53e9bcd141484cbf9f25b06.exe	MediaCenter.exe
PID 3776 wrote to memory of 2720	3776	1591561d3896de7a821fdc18715334d6bbdfaaffb53e9bcd141484cbf9f25b06.exe	MediaCenter.exe
PID 3776 wrote to memory of 2720	3776	1591561d3896de7a821fdc18715334d6bbdfaaffb53e9bcd141484cbf9f25b06.exe	MediaCenter.exe
PID 3776 wrote to memory of 4128	3776	1591561d3896de7a821fdc18715334d6bbdfaaffb53e9bcd141484cbf9f25b06.exe	cmd.exe
PID 3776 wrote to memory of 4128	3776	1591561d3896de7a821fdc18715334d6bbdfaaffb53e9bcd141484cbf9f25b06.exe	cmd.exe
PID 3776 wrote to memory of 4128	3776	1591561d3896de7a821fdc18715334d6bbdfaaffb53e9bcd141484cbf9f25b06.exe	cmd.exe
PID 4128 wrote to memory of 4184	4128	cmd.exe	PING.EXE
PID 4128 wrote to memory of 4184	4128	cmd.exe	PING.EXE
PID 4128 wrote to memory of 4184	4128	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\1591561d3896de7a821fdc18715334d6bbdfaaffb53e9bcd141484cbf9f25b06.exe
"C:\Users\Admin\AppData\Local\Temp\1591561d3896de7a821fdc18715334d6bbdfaaffb53e9bcd141484cbf9f25b06.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3776

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:2720

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\1591561d3896de7a821fdc18715334d6bbdfaaffb53e9bcd141484cbf9f25b06.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:4128

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:4184

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:3028

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:4216

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:4240

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:4464

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
f61f3fc16e4d83e26e0dd650febd9564

SHA1
b7e79ec1b210e972c587b930381879cf543ab40f

SHA256
985df66a1cf0ce04e755f07e4a2fda56a78e03216a545b43d85dd9a94cfd34eb

SHA512
eb5ecd643cbb792a72c078e1c6f2f1decafcfac4a2ad949fc3aebd0f53eb6ad7b84d76dd2fe3c72bc59767ab24caa8a2f036916e3732db387312df4034c5b468

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

MD5
f61f3fc16e4d83e26e0dd650febd9564

SHA1
b7e79ec1b210e972c587b930381879cf543ab40f

SHA256
985df66a1cf0ce04e755f07e4a2fda56a78e03216a545b43d85dd9a94cfd34eb

SHA512
eb5ecd643cbb792a72c078e1c6f2f1decafcfac4a2ad949fc3aebd0f53eb6ad7b84d76dd2fe3c72bc59767ab24caa8a2f036916e3732db387312df4034c5b468

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads