sakula | 055a2b09d6cd80a486e38b2f4b354dcea392e025ff52efff32c6b2b097804427

General

Target

055a2b09d6cd80a486e38b2f4b354dcea392e025ff52efff32c6b2b097804427.exe
Size

36KB
MD5

3e52eea5a0e92530b9ba6aa6ca0227fb
SHA1

848928f7973fab0b450b9222d1a21d97f87e1c79
SHA256

055a2b09d6cd80a486e38b2f4b354dcea392e025ff52efff32c6b2b097804427
SHA512

33ed4c5258652148b0af9c16ad09d2085162434a852747b1912596e978b648a6d16e5b764bb41a75e1da13c09b08403ccba529d3a9566501aef922c71a46ce40

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

3724 MediaCenter.exe

pid	process
3724	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:

055a2b09d6cd80a486e38b2f4b354dcea392e025ff52efff32c6b2b097804427.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	055a2b09d6cd80a486e38b2f4b354dcea392e025ff52efff32c6b2b097804427.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

055a2b09d6cd80a486e38b2f4b354dcea392e025ff52efff32c6b2b097804427.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"	055a2b09d6cd80a486e38b2f4b354dcea392e025ff52efff32c6b2b097804427.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 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\GroupConnectionCount = "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\FrDownloadRatePct = "90"	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 = "1.801772"	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\SwarmCount = "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\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\PeerInfoCount = "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\DownlinkUsageBps = "0"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization	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\MemoryUsageKB = "4208"	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\DownloadMonthlyRateFrCnt = "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\UplinkBps = "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 = "0.046211"	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\DownloadMonthlyCdnBytes = "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\PriorityDownloadCount = "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\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 (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\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\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\DownloadMonthlyRateBkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132893151907148923"	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\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\MemoryUsageKB = "4104"	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\Config\DODownloadMode = "1"	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 = "0.230415"	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\DownloadMonthlyRateFrBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkCnt = "0"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

3476 PING.EXE

pid	process
3476	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

TiWorker.exe055a2b09d6cd80a486e38b2f4b354dcea392e025ff52efff32c6b2b097804427.exe

description	pid	process
Token: SeSecurityPrivilege	2684	TiWorker.exe
Token: SeRestorePrivilege	2684	TiWorker.exe
Token: SeBackupPrivilege	2684	TiWorker.exe
Token: SeIncBasePriorityPrivilege	3816	055a2b09d6cd80a486e38b2f4b354dcea392e025ff52efff32c6b2b097804427.exe
Token: SeBackupPrivilege	2684	TiWorker.exe
Token: SeRestorePrivilege	2684	TiWorker.exe
Token: SeSecurityPrivilege	2684	TiWorker.exe
Token: SeBackupPrivilege	2684	TiWorker.exe
Token: SeRestorePrivilege	2684	TiWorker.exe
Token: SeSecurityPrivilege	2684	TiWorker.exe
Token: SeBackupPrivilege	2684	TiWorker.exe
Token: SeRestorePrivilege	2684	TiWorker.exe
Token: SeSecurityPrivilege	2684	TiWorker.exe
Token: SeBackupPrivilege	2684	TiWorker.exe
Token: SeRestorePrivilege	2684	TiWorker.exe
Token: SeSecurityPrivilege	2684	TiWorker.exe
Token: SeBackupPrivilege	2684	TiWorker.exe
Token: SeRestorePrivilege	2684	TiWorker.exe
Token: SeSecurityPrivilege	2684	TiWorker.exe
Token: SeBackupPrivilege	2684	TiWorker.exe
Token: SeRestorePrivilege	2684	TiWorker.exe
Token: SeSecurityPrivilege	2684	TiWorker.exe
Token: SeBackupPrivilege	2684	TiWorker.exe
Token: SeRestorePrivilege	2684	TiWorker.exe
Token: SeSecurityPrivilege	2684	TiWorker.exe
Token: SeBackupPrivilege	2684	TiWorker.exe
Token: SeRestorePrivilege	2684	TiWorker.exe
Token: SeSecurityPrivilege	2684	TiWorker.exe
Token: SeBackupPrivilege	2684	TiWorker.exe
Token: SeRestorePrivilege	2684	TiWorker.exe
Token: SeSecurityPrivilege	2684	TiWorker.exe
Token: SeBackupPrivilege	2684	TiWorker.exe
Token: SeRestorePrivilege	2684	TiWorker.exe
Token: SeSecurityPrivilege	2684	TiWorker.exe
Token: SeBackupPrivilege	2684	TiWorker.exe
Token: SeRestorePrivilege	2684	TiWorker.exe
Token: SeSecurityPrivilege	2684	TiWorker.exe
Token: SeBackupPrivilege	2684	TiWorker.exe
Token: SeRestorePrivilege	2684	TiWorker.exe
Token: SeSecurityPrivilege	2684	TiWorker.exe
Token: SeBackupPrivilege	2684	TiWorker.exe
Token: SeRestorePrivilege	2684	TiWorker.exe
Token: SeSecurityPrivilege	2684	TiWorker.exe
Token: SeBackupPrivilege	2684	TiWorker.exe
Token: SeRestorePrivilege	2684	TiWorker.exe
Token: SeSecurityPrivilege	2684	TiWorker.exe
Token: SeBackupPrivilege	2684	TiWorker.exe
Token: SeRestorePrivilege	2684	TiWorker.exe
Token: SeSecurityPrivilege	2684	TiWorker.exe
Token: SeBackupPrivilege	2684	TiWorker.exe
Token: SeRestorePrivilege	2684	TiWorker.exe
Token: SeSecurityPrivilege	2684	TiWorker.exe
Token: SeBackupPrivilege	2684	TiWorker.exe
Token: SeRestorePrivilege	2684	TiWorker.exe
Token: SeSecurityPrivilege	2684	TiWorker.exe
Token: SeBackupPrivilege	2684	TiWorker.exe
Token: SeRestorePrivilege	2684	TiWorker.exe
Token: SeSecurityPrivilege	2684	TiWorker.exe
Token: SeBackupPrivilege	2684	TiWorker.exe
Token: SeRestorePrivilege	2684	TiWorker.exe
Token: SeSecurityPrivilege	2684	TiWorker.exe
Token: SeBackupPrivilege	2684	TiWorker.exe
Token: SeRestorePrivilege	2684	TiWorker.exe
Token: SeSecurityPrivilege	2684	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

055a2b09d6cd80a486e38b2f4b354dcea392e025ff52efff32c6b2b097804427.execmd.exe

description	pid	process	target process
PID 3816 wrote to memory of 3724	3816	055a2b09d6cd80a486e38b2f4b354dcea392e025ff52efff32c6b2b097804427.exe	MediaCenter.exe
PID 3816 wrote to memory of 3724	3816	055a2b09d6cd80a486e38b2f4b354dcea392e025ff52efff32c6b2b097804427.exe	MediaCenter.exe
PID 3816 wrote to memory of 3724	3816	055a2b09d6cd80a486e38b2f4b354dcea392e025ff52efff32c6b2b097804427.exe	MediaCenter.exe
PID 3816 wrote to memory of 808	3816	055a2b09d6cd80a486e38b2f4b354dcea392e025ff52efff32c6b2b097804427.exe	cmd.exe
PID 3816 wrote to memory of 808	3816	055a2b09d6cd80a486e38b2f4b354dcea392e025ff52efff32c6b2b097804427.exe	cmd.exe
PID 3816 wrote to memory of 808	3816	055a2b09d6cd80a486e38b2f4b354dcea392e025ff52efff32c6b2b097804427.exe	cmd.exe
PID 808 wrote to memory of 3476	808	cmd.exe	PING.EXE
PID 808 wrote to memory of 3476	808	cmd.exe	PING.EXE
PID 808 wrote to memory of 3476	808	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\055a2b09d6cd80a486e38b2f4b354dcea392e025ff52efff32c6b2b097804427.exe
"C:\Users\Admin\AppData\Local\Temp\055a2b09d6cd80a486e38b2f4b354dcea392e025ff52efff32c6b2b097804427.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3816

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:3724

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\055a2b09d6cd80a486e38b2f4b354dcea392e025ff52efff32c6b2b097804427.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:808

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:3476

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:3740

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:2800

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:2684

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
1c7f0ad6321b3eb4a695fa51460f5f37

SHA1
e5835412f45d47e9b24a0654a98330aa1f984e91

SHA256
2b5737e66b61a81c8900e5f4026f3e435327cbf362031c5800fe2dd43bc9e050

SHA512
701eedec6f0fd8c5dbd2efdaa08b8030ff8ed6ed6cef40fdb5f7b61cc5fc9b616e8d133ff17c13fd82639514c05114bca845c512a9bf987c39b0297c127b169b

Download Submit
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
MD5
1c7f0ad6321b3eb4a695fa51460f5f37

SHA1
e5835412f45d47e9b24a0654a98330aa1f984e91

SHA256
2b5737e66b61a81c8900e5f4026f3e435327cbf362031c5800fe2dd43bc9e050

SHA512
701eedec6f0fd8c5dbd2efdaa08b8030ff8ed6ed6cef40fdb5f7b61cc5fc9b616e8d133ff17c13fd82639514c05114bca845c512a9bf987c39b0297c127b169b

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads