sakula | 1898a0fb93b22dc2f9fbac5178283fe47e828189359f8247691b29f2aae1bc94

General

Target

1898a0fb93b22dc2f9fbac5178283fe47e828189359f8247691b29f2aae1bc94.exe
Size

100KB
MD5

d3b4a936517625d7bcfbf83c8c23c369
SHA1

ecd4bb20c9de0f49f9ff0f97395183b8507c0781
SHA256

1898a0fb93b22dc2f9fbac5178283fe47e828189359f8247691b29f2aae1bc94
SHA512

e6bcef338928f6dfc2d07fc05ad415ae8118ca7ee1011232b8a33513b5b8dc7ed067555787e67b8b6dbe04527a4d67af1e045f0e9b3137b94f17c56dbf61e146

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

3760 MediaCenter.exe

pid	process
3760	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:

1898a0fb93b22dc2f9fbac5178283fe47e828189359f8247691b29f2aae1bc94.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	1898a0fb93b22dc2f9fbac5178283fe47e828189359f8247691b29f2aae1bc94.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

1898a0fb93b22dc2f9fbac5178283fe47e828189359f8247691b29f2aae1bc94.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"	1898a0fb93b22dc2f9fbac5178283fe47e828189359f8247691b29f2aae1bc94.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 49 IoCs

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PeerInfoCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "1.184211"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4380"	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\SwarmCount = "0"	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\DownloadMonthlyInternetBytes = "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\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\NormalDownloadPendingCount = "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\DownloadMonthlyRateFrCnt = "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
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\NormalDownloadCount = "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\DownlinkBps = "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 (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\DownloadMonthlyGroupBytes = "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\SwarmCount = "1"	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\UploadRatePct = "100"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4180"	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\CDNConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DownloadMode_BackCompat = "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\DownloadMonthlyLanBytes = "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\Usage\MonthID = "2"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132892852799403482"	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\PriorityDownloadCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "16.654658"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkCnt = "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\LinkLocalConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkBps = "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\Usage\DownloadMonthlyLinkLocalBytes = "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\FrDownloadRatePct = "90"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "5.263427"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

812 PING.EXE

pid	process
812	PING.EXE

Suspicious use of AdjustPrivilegeToken 34 IoCs

Processes:

1898a0fb93b22dc2f9fbac5178283fe47e828189359f8247691b29f2aae1bc94.exeTiWorker.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	1492	1898a0fb93b22dc2f9fbac5178283fe47e828189359f8247691b29f2aae1bc94.exe
Token: SeSecurityPrivilege	2260	TiWorker.exe
Token: SeRestorePrivilege	2260	TiWorker.exe
Token: SeBackupPrivilege	2260	TiWorker.exe
Token: SeBackupPrivilege	2260	TiWorker.exe
Token: SeRestorePrivilege	2260	TiWorker.exe
Token: SeSecurityPrivilege	2260	TiWorker.exe
Token: SeBackupPrivilege	2260	TiWorker.exe
Token: SeRestorePrivilege	2260	TiWorker.exe
Token: SeSecurityPrivilege	2260	TiWorker.exe
Token: SeBackupPrivilege	2260	TiWorker.exe
Token: SeRestorePrivilege	2260	TiWorker.exe
Token: SeSecurityPrivilege	2260	TiWorker.exe
Token: SeBackupPrivilege	2260	TiWorker.exe
Token: SeRestorePrivilege	2260	TiWorker.exe
Token: SeSecurityPrivilege	2260	TiWorker.exe
Token: SeBackupPrivilege	2260	TiWorker.exe
Token: SeRestorePrivilege	2260	TiWorker.exe
Token: SeSecurityPrivilege	2260	TiWorker.exe
Token: SeBackupPrivilege	2260	TiWorker.exe
Token: SeRestorePrivilege	2260	TiWorker.exe
Token: SeSecurityPrivilege	2260	TiWorker.exe
Token: SeBackupPrivilege	2260	TiWorker.exe
Token: SeRestorePrivilege	2260	TiWorker.exe
Token: SeSecurityPrivilege	2260	TiWorker.exe
Token: SeBackupPrivilege	2260	TiWorker.exe
Token: SeRestorePrivilege	2260	TiWorker.exe
Token: SeSecurityPrivilege	2260	TiWorker.exe
Token: SeBackupPrivilege	2260	TiWorker.exe
Token: SeRestorePrivilege	2260	TiWorker.exe
Token: SeSecurityPrivilege	2260	TiWorker.exe
Token: SeBackupPrivilege	2260	TiWorker.exe
Token: SeRestorePrivilege	2260	TiWorker.exe
Token: SeSecurityPrivilege	2260	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

1898a0fb93b22dc2f9fbac5178283fe47e828189359f8247691b29f2aae1bc94.execmd.exe

description	pid	process	target process
PID 1492 wrote to memory of 3760	1492	1898a0fb93b22dc2f9fbac5178283fe47e828189359f8247691b29f2aae1bc94.exe	MediaCenter.exe
PID 1492 wrote to memory of 3760	1492	1898a0fb93b22dc2f9fbac5178283fe47e828189359f8247691b29f2aae1bc94.exe	MediaCenter.exe
PID 1492 wrote to memory of 3760	1492	1898a0fb93b22dc2f9fbac5178283fe47e828189359f8247691b29f2aae1bc94.exe	MediaCenter.exe
PID 1492 wrote to memory of 2436	1492	1898a0fb93b22dc2f9fbac5178283fe47e828189359f8247691b29f2aae1bc94.exe	cmd.exe
PID 1492 wrote to memory of 2436	1492	1898a0fb93b22dc2f9fbac5178283fe47e828189359f8247691b29f2aae1bc94.exe	cmd.exe
PID 1492 wrote to memory of 2436	1492	1898a0fb93b22dc2f9fbac5178283fe47e828189359f8247691b29f2aae1bc94.exe	cmd.exe
PID 2436 wrote to memory of 812	2436	cmd.exe	PING.EXE
PID 2436 wrote to memory of 812	2436	cmd.exe	PING.EXE
PID 2436 wrote to memory of 812	2436	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\1898a0fb93b22dc2f9fbac5178283fe47e828189359f8247691b29f2aae1bc94.exe
"C:\Users\Admin\AppData\Local\Temp\1898a0fb93b22dc2f9fbac5178283fe47e828189359f8247691b29f2aae1bc94.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1492

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:3760

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\1898a0fb93b22dc2f9fbac5178283fe47e828189359f8247691b29f2aae1bc94.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:2436

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:812

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:3652

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:1480

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:2260

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
9e2e01e8aa68e5bd69a0bbb06072986a

SHA1
9c86bd47409aca5b3c0378983860d7b7d6b89a9a

SHA256
6871f587b5c390aebf102f2578dd09a14ad69a71a50578aa13d915ed6c21eacf

SHA512
f3d81f3059988236472dce98fabe0d9834d1f2aa87993c1859d72b1631b96c8c548b7f87298e9294f33be60fa3331ac993f9d2b8caa281b46ac5943736f27f14

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

MD5
9e2e01e8aa68e5bd69a0bbb06072986a

SHA1
9c86bd47409aca5b3c0378983860d7b7d6b89a9a

SHA256
6871f587b5c390aebf102f2578dd09a14ad69a71a50578aa13d915ed6c21eacf

SHA512
f3d81f3059988236472dce98fabe0d9834d1f2aa87993c1859d72b1631b96c8c548b7f87298e9294f33be60fa3331ac993f9d2b8caa281b46ac5943736f27f14

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads