sakula | 18f5f4be0cbdab767ceb8fc8be7067b77fdb44d7cedcef6b0fefeb3aacf7b9a4

General

Target

18f5f4be0cbdab767ceb8fc8be7067b77fdb44d7cedcef6b0fefeb3aacf7b9a4.exe
Size

36KB
MD5

1c1817ade934a17c9b8f20f2f8faa43d
SHA1

cb38783dcd7a516f32e0e1306a0c27e0b7a297a2
SHA256

18f5f4be0cbdab767ceb8fc8be7067b77fdb44d7cedcef6b0fefeb3aacf7b9a4
SHA512

4aa77cfe3d511aa1f6aecd480d541156dc0b74a2165e9ba3490a0043806f4fad5febb28396e4130a44b967b0921f8507003de6190292da75c74b231c4f1d5b9a

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

2984 MediaCenter.exe

pid	process
2984	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:

18f5f4be0cbdab767ceb8fc8be7067b77fdb44d7cedcef6b0fefeb3aacf7b9a4.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	18f5f4be0cbdab767ceb8fc8be7067b77fdb44d7cedcef6b0fefeb3aacf7b9a4.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

18f5f4be0cbdab767ceb8fc8be7067b77fdb44d7cedcef6b0fefeb3aacf7b9a4.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"	18f5f4be0cbdab767ceb8fc8be7067b77fdb44d7cedcef6b0fefeb3aacf7b9a4.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 51 IoCs

Processes:

svchost.exe

description	ioc	process
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\Config\KVFileExpirationTime = "132892846833894054"	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\UploadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4084"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "3976"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "3.124983"	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\DownloadMonthlyRateBkCnt = "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\LANConnectionCount = "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 (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 = "3.571004"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4308"	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\DownloadMonthlyInternetBytes = "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\UploadRatePct = "100"	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\NormalDownloadCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "2.631558"	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\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\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\DownlinkBps = "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\UplinkUsageBps = "0"	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\Config\DownloadMode_BackCompat = "1"	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\DownloadMonthlyRateFrCnt = "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
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\Config\DODownloadMode = "1"	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\BkDownloadRatePct = "45"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.006676"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthID = "2"	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\SwarmCount = "1"	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\UplinkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthlyUploadRestriction = "0"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1000 PING.EXE

pid	process
1000	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

TiWorker.exe18f5f4be0cbdab767ceb8fc8be7067b77fdb44d7cedcef6b0fefeb3aacf7b9a4.exe

description	pid	process
Token: SeSecurityPrivilege	1216	TiWorker.exe
Token: SeRestorePrivilege	1216	TiWorker.exe
Token: SeBackupPrivilege	1216	TiWorker.exe
Token: SeBackupPrivilege	1216	TiWorker.exe
Token: SeRestorePrivilege	1216	TiWorker.exe
Token: SeSecurityPrivilege	1216	TiWorker.exe
Token: SeBackupPrivilege	1216	TiWorker.exe
Token: SeRestorePrivilege	1216	TiWorker.exe
Token: SeSecurityPrivilege	1216	TiWorker.exe
Token: SeBackupPrivilege	1216	TiWorker.exe
Token: SeRestorePrivilege	1216	TiWorker.exe
Token: SeSecurityPrivilege	1216	TiWorker.exe
Token: SeBackupPrivilege	1216	TiWorker.exe
Token: SeRestorePrivilege	1216	TiWorker.exe
Token: SeSecurityPrivilege	1216	TiWorker.exe
Token: SeIncBasePriorityPrivilege	408	18f5f4be0cbdab767ceb8fc8be7067b77fdb44d7cedcef6b0fefeb3aacf7b9a4.exe
Token: SeBackupPrivilege	1216	TiWorker.exe
Token: SeRestorePrivilege	1216	TiWorker.exe
Token: SeSecurityPrivilege	1216	TiWorker.exe
Token: SeBackupPrivilege	1216	TiWorker.exe
Token: SeRestorePrivilege	1216	TiWorker.exe
Token: SeSecurityPrivilege	1216	TiWorker.exe
Token: SeBackupPrivilege	1216	TiWorker.exe
Token: SeRestorePrivilege	1216	TiWorker.exe
Token: SeSecurityPrivilege	1216	TiWorker.exe
Token: SeBackupPrivilege	1216	TiWorker.exe
Token: SeRestorePrivilege	1216	TiWorker.exe
Token: SeSecurityPrivilege	1216	TiWorker.exe
Token: SeBackupPrivilege	1216	TiWorker.exe
Token: SeRestorePrivilege	1216	TiWorker.exe
Token: SeSecurityPrivilege	1216	TiWorker.exe
Token: SeBackupPrivilege	1216	TiWorker.exe
Token: SeRestorePrivilege	1216	TiWorker.exe
Token: SeSecurityPrivilege	1216	TiWorker.exe
Token: SeBackupPrivilege	1216	TiWorker.exe
Token: SeRestorePrivilege	1216	TiWorker.exe
Token: SeSecurityPrivilege	1216	TiWorker.exe
Token: SeBackupPrivilege	1216	TiWorker.exe
Token: SeRestorePrivilege	1216	TiWorker.exe
Token: SeSecurityPrivilege	1216	TiWorker.exe
Token: SeBackupPrivilege	1216	TiWorker.exe
Token: SeRestorePrivilege	1216	TiWorker.exe
Token: SeSecurityPrivilege	1216	TiWorker.exe
Token: SeBackupPrivilege	1216	TiWorker.exe
Token: SeRestorePrivilege	1216	TiWorker.exe
Token: SeSecurityPrivilege	1216	TiWorker.exe
Token: SeBackupPrivilege	1216	TiWorker.exe
Token: SeRestorePrivilege	1216	TiWorker.exe
Token: SeSecurityPrivilege	1216	TiWorker.exe
Token: SeBackupPrivilege	1216	TiWorker.exe
Token: SeRestorePrivilege	1216	TiWorker.exe
Token: SeSecurityPrivilege	1216	TiWorker.exe
Token: SeBackupPrivilege	1216	TiWorker.exe
Token: SeRestorePrivilege	1216	TiWorker.exe
Token: SeSecurityPrivilege	1216	TiWorker.exe
Token: SeBackupPrivilege	1216	TiWorker.exe
Token: SeRestorePrivilege	1216	TiWorker.exe
Token: SeSecurityPrivilege	1216	TiWorker.exe
Token: SeBackupPrivilege	1216	TiWorker.exe
Token: SeRestorePrivilege	1216	TiWorker.exe
Token: SeSecurityPrivilege	1216	TiWorker.exe
Token: SeBackupPrivilege	1216	TiWorker.exe
Token: SeRestorePrivilege	1216	TiWorker.exe
Token: SeSecurityPrivilege	1216	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

18f5f4be0cbdab767ceb8fc8be7067b77fdb44d7cedcef6b0fefeb3aacf7b9a4.execmd.exe

description	pid	process	target process
PID 408 wrote to memory of 2984	408	18f5f4be0cbdab767ceb8fc8be7067b77fdb44d7cedcef6b0fefeb3aacf7b9a4.exe	MediaCenter.exe
PID 408 wrote to memory of 2984	408	18f5f4be0cbdab767ceb8fc8be7067b77fdb44d7cedcef6b0fefeb3aacf7b9a4.exe	MediaCenter.exe
PID 408 wrote to memory of 2984	408	18f5f4be0cbdab767ceb8fc8be7067b77fdb44d7cedcef6b0fefeb3aacf7b9a4.exe	MediaCenter.exe
PID 408 wrote to memory of 3636	408	18f5f4be0cbdab767ceb8fc8be7067b77fdb44d7cedcef6b0fefeb3aacf7b9a4.exe	cmd.exe
PID 408 wrote to memory of 3636	408	18f5f4be0cbdab767ceb8fc8be7067b77fdb44d7cedcef6b0fefeb3aacf7b9a4.exe	cmd.exe
PID 408 wrote to memory of 3636	408	18f5f4be0cbdab767ceb8fc8be7067b77fdb44d7cedcef6b0fefeb3aacf7b9a4.exe	cmd.exe
PID 3636 wrote to memory of 1000	3636	cmd.exe	PING.EXE
PID 3636 wrote to memory of 1000	3636	cmd.exe	PING.EXE
PID 3636 wrote to memory of 1000	3636	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\18f5f4be0cbdab767ceb8fc8be7067b77fdb44d7cedcef6b0fefeb3aacf7b9a4.exe
"C:\Users\Admin\AppData\Local\Temp\18f5f4be0cbdab767ceb8fc8be7067b77fdb44d7cedcef6b0fefeb3aacf7b9a4.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:408

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:2984

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\18f5f4be0cbdab767ceb8fc8be7067b77fdb44d7cedcef6b0fefeb3aacf7b9a4.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3636

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:1000

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:3836

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:4076

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:1216

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
f959b0966935b7fcf44153630333327c

SHA1
f2016a457a3ca3fa45a290ef44361d372bbfd318

SHA256
841b48f1035d558b6a0d70923571cbb36cf812b0c3796f31c8dcbe7982de7b21

SHA512
9a690c5a900a09870e1ac66d15c0bc4683fc594950f4433003246b4a44ed9166f85c9382a607ef0c3e88d7a2b166a1247239d16b3be9d318f25a2da53c0405ce

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

MD5
f959b0966935b7fcf44153630333327c

SHA1
f2016a457a3ca3fa45a290ef44361d372bbfd318

SHA256
841b48f1035d558b6a0d70923571cbb36cf812b0c3796f31c8dcbe7982de7b21

SHA512
9a690c5a900a09870e1ac66d15c0bc4683fc594950f4433003246b4a44ed9166f85c9382a607ef0c3e88d7a2b166a1247239d16b3be9d318f25a2da53c0405ce

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads