sakula | 13c7b84c048de25d6e9209a70b70ec06d8ac54325180ed142af935e3883fa57e

General

Target

13c7b84c048de25d6e9209a70b70ec06d8ac54325180ed142af935e3883fa57e.exe
Size

60KB
MD5

554c32c667571d6047e4eb5538320c3c
SHA1

2b5280608832d62382aa15ca5c9c523c02d9e279
SHA256

13c7b84c048de25d6e9209a70b70ec06d8ac54325180ed142af935e3883fa57e
SHA512

0517a1d5df77d530d37a5c0d9a49e735fba6dd1f6936aa27b1a5bd1f004cd960d2ef5ad4b5e7392855ec23343f475e8f8b764d6edf763a1c5201795fbebdec0a

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

3840 MediaCenter.exe

pid	process
3840	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:

13c7b84c048de25d6e9209a70b70ec06d8ac54325180ed142af935e3883fa57e.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	13c7b84c048de25d6e9209a70b70ec06d8ac54325180ed142af935e3883fa57e.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

13c7b84c048de25d6e9209a70b70ec06d8ac54325180ed142af935e3883fa57e.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"	13c7b84c048de25d6e9209a70b70ec06d8ac54325180ed142af935e3883fa57e.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 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\FrDownloadRatePct = "90"	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\NormalDownloadPendingCount = "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\DownloadMonthlyInternetBytes = "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\SwarmCount = "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\CDNConnectionCount = "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\SwarmCount = "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\MonthID = "2"	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\Config\DownloadMode_BackCompat = "1"	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\CacheSizeBytes = "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\BkDownloadRatePct = "45"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "2.310954"	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\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\MonthlyUploadRestriction = "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 = "4320"	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\UploadMonthlyLanBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132892923617834162"	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
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\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\LANConnectionCount = "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\UploadCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.638054"	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\DownloadMonthlyRateFrCnt = "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\GroupConnectionCount = "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\MemoryUsageKB = "4096"	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\DownloadMonthlyGroupBytes = "0"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1924 PING.EXE

pid	process
1924	PING.EXE

Suspicious use of AdjustPrivilegeToken 34 IoCs

Processes:

13c7b84c048de25d6e9209a70b70ec06d8ac54325180ed142af935e3883fa57e.exeTiWorker.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	1104	13c7b84c048de25d6e9209a70b70ec06d8ac54325180ed142af935e3883fa57e.exe
Token: SeSecurityPrivilege	3420	TiWorker.exe
Token: SeRestorePrivilege	3420	TiWorker.exe
Token: SeBackupPrivilege	3420	TiWorker.exe
Token: SeBackupPrivilege	3420	TiWorker.exe
Token: SeRestorePrivilege	3420	TiWorker.exe
Token: SeSecurityPrivilege	3420	TiWorker.exe
Token: SeBackupPrivilege	3420	TiWorker.exe
Token: SeRestorePrivilege	3420	TiWorker.exe
Token: SeSecurityPrivilege	3420	TiWorker.exe
Token: SeBackupPrivilege	3420	TiWorker.exe
Token: SeRestorePrivilege	3420	TiWorker.exe
Token: SeSecurityPrivilege	3420	TiWorker.exe
Token: SeBackupPrivilege	3420	TiWorker.exe
Token: SeRestorePrivilege	3420	TiWorker.exe
Token: SeSecurityPrivilege	3420	TiWorker.exe
Token: SeBackupPrivilege	3420	TiWorker.exe
Token: SeRestorePrivilege	3420	TiWorker.exe
Token: SeSecurityPrivilege	3420	TiWorker.exe
Token: SeBackupPrivilege	3420	TiWorker.exe
Token: SeRestorePrivilege	3420	TiWorker.exe
Token: SeSecurityPrivilege	3420	TiWorker.exe
Token: SeBackupPrivilege	3420	TiWorker.exe
Token: SeRestorePrivilege	3420	TiWorker.exe
Token: SeSecurityPrivilege	3420	TiWorker.exe
Token: SeBackupPrivilege	3420	TiWorker.exe
Token: SeRestorePrivilege	3420	TiWorker.exe
Token: SeSecurityPrivilege	3420	TiWorker.exe
Token: SeBackupPrivilege	3420	TiWorker.exe
Token: SeRestorePrivilege	3420	TiWorker.exe
Token: SeSecurityPrivilege	3420	TiWorker.exe
Token: SeBackupPrivilege	3420	TiWorker.exe
Token: SeRestorePrivilege	3420	TiWorker.exe
Token: SeSecurityPrivilege	3420	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

13c7b84c048de25d6e9209a70b70ec06d8ac54325180ed142af935e3883fa57e.execmd.exe

description	pid	process	target process
PID 1104 wrote to memory of 3840	1104	13c7b84c048de25d6e9209a70b70ec06d8ac54325180ed142af935e3883fa57e.exe	MediaCenter.exe
PID 1104 wrote to memory of 3840	1104	13c7b84c048de25d6e9209a70b70ec06d8ac54325180ed142af935e3883fa57e.exe	MediaCenter.exe
PID 1104 wrote to memory of 3840	1104	13c7b84c048de25d6e9209a70b70ec06d8ac54325180ed142af935e3883fa57e.exe	MediaCenter.exe
PID 1104 wrote to memory of 204	1104	13c7b84c048de25d6e9209a70b70ec06d8ac54325180ed142af935e3883fa57e.exe	cmd.exe
PID 1104 wrote to memory of 204	1104	13c7b84c048de25d6e9209a70b70ec06d8ac54325180ed142af935e3883fa57e.exe	cmd.exe
PID 1104 wrote to memory of 204	1104	13c7b84c048de25d6e9209a70b70ec06d8ac54325180ed142af935e3883fa57e.exe	cmd.exe
PID 204 wrote to memory of 1924	204	cmd.exe	PING.EXE
PID 204 wrote to memory of 1924	204	cmd.exe	PING.EXE
PID 204 wrote to memory of 1924	204	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\13c7b84c048de25d6e9209a70b70ec06d8ac54325180ed142af935e3883fa57e.exe
"C:\Users\Admin\AppData\Local\Temp\13c7b84c048de25d6e9209a70b70ec06d8ac54325180ed142af935e3883fa57e.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1104

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:3840

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\13c7b84c048de25d6e9209a70b70ec06d8ac54325180ed142af935e3883fa57e.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:204

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:1924

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:2168

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:4028

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:3420

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
35873b4f2a429cee883bf7f4fea30c20

SHA1
6ffd8ccea69bd9361eb8d0fd4e0c33445cbed0a3

SHA256
8b539d3d38bc9cfba8d8e37267bdcdccd57414ed5e797366bfae3928564ed29d

SHA512
ea5439e24e83ae42ef1fb5f8fd0b9e7de5f912dae6b9151d1b7a4ba93a6fa4c07d5fee18b578004b853366f0edc1879211b0eff92e7fce8f997461ddfad73c52

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

MD5
35873b4f2a429cee883bf7f4fea30c20

SHA1
6ffd8ccea69bd9361eb8d0fd4e0c33445cbed0a3

SHA256
8b539d3d38bc9cfba8d8e37267bdcdccd57414ed5e797366bfae3928564ed29d

SHA512
ea5439e24e83ae42ef1fb5f8fd0b9e7de5f912dae6b9151d1b7a4ba93a6fa4c07d5fee18b578004b853366f0edc1879211b0eff92e7fce8f997461ddfad73c52

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads