sakula | 15f4a37a442c5fd9fc940b2cb3773a58321d23af993e9e81ba43c86d2de4b7fd

General

Target

15f4a37a442c5fd9fc940b2cb3773a58321d23af993e9e81ba43c86d2de4b7fd.exe
Size

58KB
MD5

c1b21316779b208651a7cd4f5ecaf548
SHA1

b032fef27cfacbea60d37eac9fd77e1d075cbde8
SHA256

15f4a37a442c5fd9fc940b2cb3773a58321d23af993e9e81ba43c86d2de4b7fd
SHA512

5c2e2464b45bab541b60b858d588f114d7d8e9b387e3c777365ae923d13c15cdd6c3f1af72cf7944767524f4452766c160837f42a110eb72285aa6d1a9f9b89b

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

616 MediaCenter.exe

pid	process
616	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:

15f4a37a442c5fd9fc940b2cb3773a58321d23af993e9e81ba43c86d2de4b7fd.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	15f4a37a442c5fd9fc940b2cb3773a58321d23af993e9e81ba43c86d2de4b7fd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

15f4a37a442c5fd9fc940b2cb3773a58321d23af993e9e81ba43c86d2de4b7fd.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"	15f4a37a442c5fd9fc940b2cb3773a58321d23af993e9e81ba43c86d2de4b7fd.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\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\DeliveryOptimization\State\keyValueLKG.dat	svchost.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\Config\DownloadMode_BackCompat = "1"	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\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 (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\SwarmCount = "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\Config	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 (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\DownloadMonthlyRateBkBps = "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\UplinkUsageBps = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.063331"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4372"	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\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\DownloadMonthlyLanBytes = "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\DownlinkUsageBps = "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\MonthlyUploadRestriction = "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\Config\DODownloadMode = "1"	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\PeerInfoCount = "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\NormalDownloadPendingCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4172"	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\DownloadMonthlyRateBkCnt = "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
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\PriorityDownloadPendingCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4336"	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\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\CacheSizeBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkBps = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.198153"	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\Config\KVFileExpirationTime = "132892890124841576"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\BkDownloadRatePct = "45"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "16.649972"	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\LANConnectionCount = "0"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

3956 PING.EXE

pid	process
3956	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

15f4a37a442c5fd9fc940b2cb3773a58321d23af993e9e81ba43c86d2de4b7fd.exeTiWorker.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	2264	15f4a37a442c5fd9fc940b2cb3773a58321d23af993e9e81ba43c86d2de4b7fd.exe
Token: SeSecurityPrivilege	3908	TiWorker.exe
Token: SeRestorePrivilege	3908	TiWorker.exe
Token: SeBackupPrivilege	3908	TiWorker.exe
Token: SeBackupPrivilege	3908	TiWorker.exe
Token: SeRestorePrivilege	3908	TiWorker.exe
Token: SeSecurityPrivilege	3908	TiWorker.exe
Token: SeBackupPrivilege	3908	TiWorker.exe
Token: SeRestorePrivilege	3908	TiWorker.exe
Token: SeSecurityPrivilege	3908	TiWorker.exe
Token: SeBackupPrivilege	3908	TiWorker.exe
Token: SeRestorePrivilege	3908	TiWorker.exe
Token: SeSecurityPrivilege	3908	TiWorker.exe
Token: SeBackupPrivilege	3908	TiWorker.exe
Token: SeRestorePrivilege	3908	TiWorker.exe
Token: SeSecurityPrivilege	3908	TiWorker.exe
Token: SeBackupPrivilege	3908	TiWorker.exe
Token: SeRestorePrivilege	3908	TiWorker.exe
Token: SeSecurityPrivilege	3908	TiWorker.exe
Token: SeBackupPrivilege	3908	TiWorker.exe
Token: SeRestorePrivilege	3908	TiWorker.exe
Token: SeSecurityPrivilege	3908	TiWorker.exe
Token: SeBackupPrivilege	3908	TiWorker.exe
Token: SeRestorePrivilege	3908	TiWorker.exe
Token: SeSecurityPrivilege	3908	TiWorker.exe
Token: SeBackupPrivilege	3908	TiWorker.exe
Token: SeRestorePrivilege	3908	TiWorker.exe
Token: SeSecurityPrivilege	3908	TiWorker.exe
Token: SeBackupPrivilege	3908	TiWorker.exe
Token: SeRestorePrivilege	3908	TiWorker.exe
Token: SeSecurityPrivilege	3908	TiWorker.exe
Token: SeBackupPrivilege	3908	TiWorker.exe
Token: SeRestorePrivilege	3908	TiWorker.exe
Token: SeSecurityPrivilege	3908	TiWorker.exe
Token: SeBackupPrivilege	3908	TiWorker.exe
Token: SeRestorePrivilege	3908	TiWorker.exe
Token: SeSecurityPrivilege	3908	TiWorker.exe
Token: SeBackupPrivilege	3908	TiWorker.exe
Token: SeRestorePrivilege	3908	TiWorker.exe
Token: SeSecurityPrivilege	3908	TiWorker.exe
Token: SeBackupPrivilege	3908	TiWorker.exe
Token: SeRestorePrivilege	3908	TiWorker.exe
Token: SeSecurityPrivilege	3908	TiWorker.exe
Token: SeBackupPrivilege	3908	TiWorker.exe
Token: SeRestorePrivilege	3908	TiWorker.exe
Token: SeSecurityPrivilege	3908	TiWorker.exe
Token: SeBackupPrivilege	3908	TiWorker.exe
Token: SeRestorePrivilege	3908	TiWorker.exe
Token: SeSecurityPrivilege	3908	TiWorker.exe
Token: SeBackupPrivilege	3908	TiWorker.exe
Token: SeRestorePrivilege	3908	TiWorker.exe
Token: SeSecurityPrivilege	3908	TiWorker.exe
Token: SeBackupPrivilege	3908	TiWorker.exe
Token: SeRestorePrivilege	3908	TiWorker.exe
Token: SeSecurityPrivilege	3908	TiWorker.exe
Token: SeBackupPrivilege	3908	TiWorker.exe
Token: SeRestorePrivilege	3908	TiWorker.exe
Token: SeSecurityPrivilege	3908	TiWorker.exe
Token: SeBackupPrivilege	3908	TiWorker.exe
Token: SeRestorePrivilege	3908	TiWorker.exe
Token: SeSecurityPrivilege	3908	TiWorker.exe
Token: SeBackupPrivilege	3908	TiWorker.exe
Token: SeRestorePrivilege	3908	TiWorker.exe
Token: SeSecurityPrivilege	3908	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

15f4a37a442c5fd9fc940b2cb3773a58321d23af993e9e81ba43c86d2de4b7fd.execmd.exe

description	pid	process	target process
PID 2264 wrote to memory of 616	2264	15f4a37a442c5fd9fc940b2cb3773a58321d23af993e9e81ba43c86d2de4b7fd.exe	MediaCenter.exe
PID 2264 wrote to memory of 616	2264	15f4a37a442c5fd9fc940b2cb3773a58321d23af993e9e81ba43c86d2de4b7fd.exe	MediaCenter.exe
PID 2264 wrote to memory of 616	2264	15f4a37a442c5fd9fc940b2cb3773a58321d23af993e9e81ba43c86d2de4b7fd.exe	MediaCenter.exe
PID 2264 wrote to memory of 1228	2264	15f4a37a442c5fd9fc940b2cb3773a58321d23af993e9e81ba43c86d2de4b7fd.exe	cmd.exe
PID 2264 wrote to memory of 1228	2264	15f4a37a442c5fd9fc940b2cb3773a58321d23af993e9e81ba43c86d2de4b7fd.exe	cmd.exe
PID 2264 wrote to memory of 1228	2264	15f4a37a442c5fd9fc940b2cb3773a58321d23af993e9e81ba43c86d2de4b7fd.exe	cmd.exe
PID 1228 wrote to memory of 3956	1228	cmd.exe	PING.EXE
PID 1228 wrote to memory of 3956	1228	cmd.exe	PING.EXE
PID 1228 wrote to memory of 3956	1228	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\15f4a37a442c5fd9fc940b2cb3773a58321d23af993e9e81ba43c86d2de4b7fd.exe
"C:\Users\Admin\AppData\Local\Temp\15f4a37a442c5fd9fc940b2cb3773a58321d23af993e9e81ba43c86d2de4b7fd.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2264

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:616

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\15f4a37a442c5fd9fc940b2cb3773a58321d23af993e9e81ba43c86d2de4b7fd.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1228

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:3956

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:2668

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:3976

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:3908

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
ca937af2b7acc40789fce2880d3d4e1e

SHA1
97c94f6271415933939ef173051e15e7a022826a

SHA256
4c0c8e288d8d8394efa62b2e103f9c1ce11867e5e6014267084d5218c39b701f

SHA512
1943d9b9767ae51cbbc4a586c74c30b441048f9d10581f9f1eddee8a66489dad2fa8eecc01c3c78b743101c8555f46fdee99852f97cf1d37d894f4ced2c3f073

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

MD5
ca937af2b7acc40789fce2880d3d4e1e

SHA1
97c94f6271415933939ef173051e15e7a022826a

SHA256
4c0c8e288d8d8394efa62b2e103f9c1ce11867e5e6014267084d5218c39b701f

SHA512
1943d9b9767ae51cbbc4a586c74c30b441048f9d10581f9f1eddee8a66489dad2fa8eecc01c3c78b743101c8555f46fdee99852f97cf1d37d894f4ced2c3f073

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads