sakula | 173870c436ec833d06af153e9ad054fbaed6b2a7c096972e9b992de09b826950

General

Target

173870c436ec833d06af153e9ad054fbaed6b2a7c096972e9b992de09b826950.exe
Size

60KB
MD5

99ec4574c74cf455f584bf0ea6f81c78
SHA1

b8e894d3818ce77e6707a4859b07947ee4bbe72a
SHA256

173870c436ec833d06af153e9ad054fbaed6b2a7c096972e9b992de09b826950
SHA512

66d044c48545379be71795da7c4f10da6c1c4be61de9941379b4f61166316013b8d512e897aff1cfe02f359c7d40f2d633a83f9459047fb15d71f25e1433593b

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

3892 MediaCenter.exe

pid	process
3892	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:

173870c436ec833d06af153e9ad054fbaed6b2a7c096972e9b992de09b826950.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	173870c436ec833d06af153e9ad054fbaed6b2a7c096972e9b992de09b826950.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

173870c436ec833d06af153e9ad054fbaed6b2a7c096972e9b992de09b826950.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"	173870c436ec833d06af153e9ad054fbaed6b2a7c096972e9b992de09b826950.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 51 IoCs

Processes:

svchost.exe

description	ioc	process
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 = "3952"	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\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\Config\DownloadMode_BackCompat = "1"	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\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\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\PriorityDownloadPendingCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadPendingCount = "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\DownloadMonthlyInternetBytes = "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\SwarmCount = "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\BkDownloadRatePct = "45"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.006736"	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\DownloadMonthlyRateBkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132892869982243773"	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\DownlinkBps = "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\DownloadMonthlyLinkLocalBytes = "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\CacheSizeBytes = "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\PriorityDownloadCount = "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\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\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 (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "1.948055"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "7.812228"	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\DownloadMonthlyCdnBytes = "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\UplinkUsageBps = "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\MonthlyUploadRestriction = "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 = "4192"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4408"	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\MonthID = "2"	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

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

2792 PING.EXE

pid	process
2792	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

TiWorker.exe173870c436ec833d06af153e9ad054fbaed6b2a7c096972e9b992de09b826950.exe

description	pid	process
Token: SeSecurityPrivilege	1832	TiWorker.exe
Token: SeRestorePrivilege	1832	TiWorker.exe
Token: SeBackupPrivilege	1832	TiWorker.exe
Token: SeBackupPrivilege	1832	TiWorker.exe
Token: SeRestorePrivilege	1832	TiWorker.exe
Token: SeSecurityPrivilege	1832	TiWorker.exe
Token: SeBackupPrivilege	1832	TiWorker.exe
Token: SeRestorePrivilege	1832	TiWorker.exe
Token: SeSecurityPrivilege	1832	TiWorker.exe
Token: SeBackupPrivilege	1832	TiWorker.exe
Token: SeRestorePrivilege	1832	TiWorker.exe
Token: SeSecurityPrivilege	1832	TiWorker.exe
Token: SeBackupPrivilege	1832	TiWorker.exe
Token: SeRestorePrivilege	1832	TiWorker.exe
Token: SeSecurityPrivilege	1832	TiWorker.exe
Token: SeBackupPrivilege	1832	TiWorker.exe
Token: SeRestorePrivilege	1832	TiWorker.exe
Token: SeSecurityPrivilege	1832	TiWorker.exe
Token: SeBackupPrivilege	1832	TiWorker.exe
Token: SeRestorePrivilege	1832	TiWorker.exe
Token: SeSecurityPrivilege	1832	TiWorker.exe
Token: SeBackupPrivilege	1832	TiWorker.exe
Token: SeRestorePrivilege	1832	TiWorker.exe
Token: SeSecurityPrivilege	1832	TiWorker.exe
Token: SeBackupPrivilege	1832	TiWorker.exe
Token: SeRestorePrivilege	1832	TiWorker.exe
Token: SeSecurityPrivilege	1832	TiWorker.exe
Token: SeBackupPrivilege	1832	TiWorker.exe
Token: SeRestorePrivilege	1832	TiWorker.exe
Token: SeSecurityPrivilege	1832	TiWorker.exe
Token: SeBackupPrivilege	1832	TiWorker.exe
Token: SeRestorePrivilege	1832	TiWorker.exe
Token: SeSecurityPrivilege	1832	TiWorker.exe
Token: SeIncBasePriorityPrivilege	3796	173870c436ec833d06af153e9ad054fbaed6b2a7c096972e9b992de09b826950.exe
Token: SeBackupPrivilege	1832	TiWorker.exe
Token: SeRestorePrivilege	1832	TiWorker.exe
Token: SeSecurityPrivilege	1832	TiWorker.exe
Token: SeBackupPrivilege	1832	TiWorker.exe
Token: SeRestorePrivilege	1832	TiWorker.exe
Token: SeSecurityPrivilege	1832	TiWorker.exe
Token: SeBackupPrivilege	1832	TiWorker.exe
Token: SeRestorePrivilege	1832	TiWorker.exe
Token: SeSecurityPrivilege	1832	TiWorker.exe
Token: SeBackupPrivilege	1832	TiWorker.exe
Token: SeRestorePrivilege	1832	TiWorker.exe
Token: SeSecurityPrivilege	1832	TiWorker.exe
Token: SeBackupPrivilege	1832	TiWorker.exe
Token: SeRestorePrivilege	1832	TiWorker.exe
Token: SeSecurityPrivilege	1832	TiWorker.exe
Token: SeBackupPrivilege	1832	TiWorker.exe
Token: SeRestorePrivilege	1832	TiWorker.exe
Token: SeSecurityPrivilege	1832	TiWorker.exe
Token: SeBackupPrivilege	1832	TiWorker.exe
Token: SeRestorePrivilege	1832	TiWorker.exe
Token: SeSecurityPrivilege	1832	TiWorker.exe
Token: SeBackupPrivilege	1832	TiWorker.exe
Token: SeRestorePrivilege	1832	TiWorker.exe
Token: SeSecurityPrivilege	1832	TiWorker.exe
Token: SeBackupPrivilege	1832	TiWorker.exe
Token: SeRestorePrivilege	1832	TiWorker.exe
Token: SeSecurityPrivilege	1832	TiWorker.exe
Token: SeBackupPrivilege	1832	TiWorker.exe
Token: SeRestorePrivilege	1832	TiWorker.exe
Token: SeSecurityPrivilege	1832	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

173870c436ec833d06af153e9ad054fbaed6b2a7c096972e9b992de09b826950.execmd.exe

description	pid	process	target process
PID 3796 wrote to memory of 3892	3796	173870c436ec833d06af153e9ad054fbaed6b2a7c096972e9b992de09b826950.exe	MediaCenter.exe
PID 3796 wrote to memory of 3892	3796	173870c436ec833d06af153e9ad054fbaed6b2a7c096972e9b992de09b826950.exe	MediaCenter.exe
PID 3796 wrote to memory of 3892	3796	173870c436ec833d06af153e9ad054fbaed6b2a7c096972e9b992de09b826950.exe	MediaCenter.exe
PID 3796 wrote to memory of 3344	3796	173870c436ec833d06af153e9ad054fbaed6b2a7c096972e9b992de09b826950.exe	cmd.exe
PID 3796 wrote to memory of 3344	3796	173870c436ec833d06af153e9ad054fbaed6b2a7c096972e9b992de09b826950.exe	cmd.exe
PID 3796 wrote to memory of 3344	3796	173870c436ec833d06af153e9ad054fbaed6b2a7c096972e9b992de09b826950.exe	cmd.exe
PID 3344 wrote to memory of 2792	3344	cmd.exe	PING.EXE
PID 3344 wrote to memory of 2792	3344	cmd.exe	PING.EXE
PID 3344 wrote to memory of 2792	3344	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\173870c436ec833d06af153e9ad054fbaed6b2a7c096972e9b992de09b826950.exe
"C:\Users\Admin\AppData\Local\Temp\173870c436ec833d06af153e9ad054fbaed6b2a7c096972e9b992de09b826950.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3796

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:3892

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\173870c436ec833d06af153e9ad054fbaed6b2a7c096972e9b992de09b826950.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3344

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:2792

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:3800

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:1832

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:3436

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
7011b507f0ecde4c79fac5ceea13473f

SHA1
aa6bfcf72e0d484380e1ce12592cc34dcb8122f1

SHA256
a4092357a168ad556e2dcaad3089a355f46de67a52560f85c692022b0aae4b1b

SHA512
5ef0f06f072d154f11f374a49209c8dacaadf17a7ad214e4ecfbdb9184a4d53f1bb82142a20976884049a22751cc9729b9c12b202fa72399f9ce45ca1dab15b1

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

MD5
7011b507f0ecde4c79fac5ceea13473f

SHA1
aa6bfcf72e0d484380e1ce12592cc34dcb8122f1

SHA256
a4092357a168ad556e2dcaad3089a355f46de67a52560f85c692022b0aae4b1b

SHA512
5ef0f06f072d154f11f374a49209c8dacaadf17a7ad214e4ecfbdb9184a4d53f1bb82142a20976884049a22751cc9729b9c12b202fa72399f9ce45ca1dab15b1

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads