sakula | 055c9a87250af9ebaa63c65fd03300d1a6ae2fc5637767ef7cbeb9391ee2d3cf

General

Target

055c9a87250af9ebaa63c65fd03300d1a6ae2fc5637767ef7cbeb9391ee2d3cf.exe
Size

192KB
MD5

b679a58f7b1d8ff8a33314fcf226b4eb
SHA1

23604499cc666d3279b7a26c39ece82304158fef
SHA256

055c9a87250af9ebaa63c65fd03300d1a6ae2fc5637767ef7cbeb9391ee2d3cf
SHA512

9233ffa72f1917703fd6662ed94c659e296f132631442f8578afae30d0f3fa83c3c9b38d3d81700b1a9a6996abc8e9312ce432c5d990505a9892cd7843712ceb

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

2812 MediaCenter.exe

pid	process
2812	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:

055c9a87250af9ebaa63c65fd03300d1a6ae2fc5637767ef7cbeb9391ee2d3cf.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	055c9a87250af9ebaa63c65fd03300d1a6ae2fc5637767ef7cbeb9391ee2d3cf.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

055c9a87250af9ebaa63c65fd03300d1a6ae2fc5637767ef7cbeb9391ee2d3cf.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"	055c9a87250af9ebaa63c65fd03300d1a6ae2fc5637767ef7cbeb9391ee2d3cf.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 50 IoCs

Processes:

svchost.exe

description	ioc	process
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\MemoryUsageKB = "3996"	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\DownloadMonthlyRateFrCnt = "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\UplinkUsageBps = "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\DownloadMonthlyCdnBytes = "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\GroupConnectionCount = "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\UploadMonthlyLanBytes = "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\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\Config\DownloadMode_BackCompat = "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\LANConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadCount = "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\NormalDownloadPendingCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4112"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4324"	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\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\NormalDownloadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "2.631723"	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\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\Config\KVFileExpirationTime = "132893151620464015"	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 = "2.325570"	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 (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\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\CDNConnectionCount = "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\PriorityDownloadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DODownloadMode = "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\DownloadMonthlyCacheHostBytes = "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

952 PING.EXE

pid	process
952	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

TiWorker.exe

description	pid	process
Token: SeSecurityPrivilege	780	TiWorker.exe
Token: SeRestorePrivilege	780	TiWorker.exe
Token: SeBackupPrivilege	780	TiWorker.exe
Token: SeBackupPrivilege	780	TiWorker.exe
Token: SeRestorePrivilege	780	TiWorker.exe
Token: SeSecurityPrivilege	780	TiWorker.exe
Token: SeBackupPrivilege	780	TiWorker.exe
Token: SeRestorePrivilege	780	TiWorker.exe
Token: SeSecurityPrivilege	780	TiWorker.exe
Token: SeBackupPrivilege	780	TiWorker.exe
Token: SeRestorePrivilege	780	TiWorker.exe
Token: SeSecurityPrivilege	780	TiWorker.exe
Token: SeBackupPrivilege	780	TiWorker.exe
Token: SeRestorePrivilege	780	TiWorker.exe
Token: SeSecurityPrivilege	780	TiWorker.exe
Token: SeBackupPrivilege	780	TiWorker.exe
Token: SeRestorePrivilege	780	TiWorker.exe
Token: SeSecurityPrivilege	780	TiWorker.exe
Token: SeBackupPrivilege	780	TiWorker.exe
Token: SeRestorePrivilege	780	TiWorker.exe
Token: SeSecurityPrivilege	780	TiWorker.exe
Token: SeBackupPrivilege	780	TiWorker.exe
Token: SeRestorePrivilege	780	TiWorker.exe
Token: SeSecurityPrivilege	780	TiWorker.exe
Token: SeBackupPrivilege	780	TiWorker.exe
Token: SeRestorePrivilege	780	TiWorker.exe
Token: SeSecurityPrivilege	780	TiWorker.exe
Token: SeBackupPrivilege	780	TiWorker.exe
Token: SeRestorePrivilege	780	TiWorker.exe
Token: SeSecurityPrivilege	780	TiWorker.exe
Token: SeBackupPrivilege	780	TiWorker.exe
Token: SeRestorePrivilege	780	TiWorker.exe
Token: SeSecurityPrivilege	780	TiWorker.exe
Token: SeBackupPrivilege	780	TiWorker.exe
Token: SeRestorePrivilege	780	TiWorker.exe
Token: SeSecurityPrivilege	780	TiWorker.exe
Token: SeBackupPrivilege	780	TiWorker.exe
Token: SeRestorePrivilege	780	TiWorker.exe
Token: SeSecurityPrivilege	780	TiWorker.exe
Token: SeBackupPrivilege	780	TiWorker.exe
Token: SeRestorePrivilege	780	TiWorker.exe
Token: SeSecurityPrivilege	780	TiWorker.exe
Token: SeBackupPrivilege	780	TiWorker.exe
Token: SeRestorePrivilege	780	TiWorker.exe
Token: SeSecurityPrivilege	780	TiWorker.exe
Token: SeBackupPrivilege	780	TiWorker.exe
Token: SeRestorePrivilege	780	TiWorker.exe
Token: SeSecurityPrivilege	780	TiWorker.exe
Token: SeBackupPrivilege	780	TiWorker.exe
Token: SeRestorePrivilege	780	TiWorker.exe
Token: SeSecurityPrivilege	780	TiWorker.exe
Token: SeBackupPrivilege	780	TiWorker.exe
Token: SeRestorePrivilege	780	TiWorker.exe
Token: SeSecurityPrivilege	780	TiWorker.exe
Token: SeBackupPrivilege	780	TiWorker.exe
Token: SeRestorePrivilege	780	TiWorker.exe
Token: SeSecurityPrivilege	780	TiWorker.exe
Token: SeBackupPrivilege	780	TiWorker.exe
Token: SeRestorePrivilege	780	TiWorker.exe
Token: SeSecurityPrivilege	780	TiWorker.exe
Token: SeBackupPrivilege	780	TiWorker.exe
Token: SeRestorePrivilege	780	TiWorker.exe
Token: SeSecurityPrivilege	780	TiWorker.exe
Token: SeBackupPrivilege	780	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

055c9a87250af9ebaa63c65fd03300d1a6ae2fc5637767ef7cbeb9391ee2d3cf.execmd.exe

description	pid	process	target process
PID 3464 wrote to memory of 2812	3464	055c9a87250af9ebaa63c65fd03300d1a6ae2fc5637767ef7cbeb9391ee2d3cf.exe	MediaCenter.exe
PID 3464 wrote to memory of 2812	3464	055c9a87250af9ebaa63c65fd03300d1a6ae2fc5637767ef7cbeb9391ee2d3cf.exe	MediaCenter.exe
PID 3464 wrote to memory of 2812	3464	055c9a87250af9ebaa63c65fd03300d1a6ae2fc5637767ef7cbeb9391ee2d3cf.exe	MediaCenter.exe
PID 3464 wrote to memory of 3408	3464	055c9a87250af9ebaa63c65fd03300d1a6ae2fc5637767ef7cbeb9391ee2d3cf.exe	cmd.exe
PID 3464 wrote to memory of 3408	3464	055c9a87250af9ebaa63c65fd03300d1a6ae2fc5637767ef7cbeb9391ee2d3cf.exe	cmd.exe
PID 3464 wrote to memory of 3408	3464	055c9a87250af9ebaa63c65fd03300d1a6ae2fc5637767ef7cbeb9391ee2d3cf.exe	cmd.exe
PID 3408 wrote to memory of 952	3408	cmd.exe	PING.EXE
PID 3408 wrote to memory of 952	3408	cmd.exe	PING.EXE
PID 3408 wrote to memory of 952	3408	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\055c9a87250af9ebaa63c65fd03300d1a6ae2fc5637767ef7cbeb9391ee2d3cf.exe
"C:\Users\Admin\AppData\Local\Temp\055c9a87250af9ebaa63c65fd03300d1a6ae2fc5637767ef7cbeb9391ee2d3cf.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3464

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:2812

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\055c9a87250af9ebaa63c65fd03300d1a6ae2fc5637767ef7cbeb9391ee2d3cf.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3408

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:952

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:992

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:1332

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:780

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
af5c2d67df8e975fdd60e6f801ec7837

SHA1
224475feac782bdf85634a2a46c6fde6e085a676

SHA256
8d0fe1cfb6eb8cf6fe6d7a1e1d793b96eabceba51f7fc4d9a5e1f539c4697143

SHA512
4c8d25594d73db3df280ae86d0e16baad7d3129394beee307d02f72513577b2625dd51b0977e792e65817dff1d8ed6f26124463833a28beecb2e2d0efa157845

Download Submit
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
MD5
af5c2d67df8e975fdd60e6f801ec7837

SHA1
224475feac782bdf85634a2a46c6fde6e085a676

SHA256
8d0fe1cfb6eb8cf6fe6d7a1e1d793b96eabceba51f7fc4d9a5e1f539c4697143

SHA512
4c8d25594d73db3df280ae86d0e16baad7d3129394beee307d02f72513577b2625dd51b0977e792e65817dff1d8ed6f26124463833a28beecb2e2d0efa157845

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads