sakula | 18a89b346084c9109761435798a12c4f16b664c39d2260e662ce1e862a43145e

General

Target

18a89b346084c9109761435798a12c4f16b664c39d2260e662ce1e862a43145e.exe
Size

36KB
MD5

6737a157fdf0c981b8771d40a5921a19
SHA1

be0d1ea549d0e4539826a5b63f991c0961223d9a
SHA256

18a89b346084c9109761435798a12c4f16b664c39d2260e662ce1e862a43145e
SHA512

3c36a757980ad02b4b92bd53fd0b2cab5ffd1743280f9edf0ffecda6eb4b45eed63df3a7bdf5cea27629448c83407aa270a43aeffedb2a2979c1768d3fdc67b8

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

2188 MediaCenter.exe

pid	process
2188	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:

18a89b346084c9109761435798a12c4f16b664c39d2260e662ce1e862a43145e.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	18a89b346084c9109761435798a12c4f16b664c39d2260e662ce1e862a43145e.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

18a89b346084c9109761435798a12c4f16b664c39d2260e662ce1e862a43145e.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"	18a89b346084c9109761435798a12c4f16b664c39d2260e662ce1e862a43145e.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\WinSxS\pending.xml	TiWorker.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\DeliveryOptimization\State\keyValueLKG.dat	svchost.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\Usage\CDNConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\InternetConnectionCount = "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\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\UploadMonthlyInternetBytes = "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\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\UplinkBps = "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 = "2.189762"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.064143"	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\DownloadMonthlyGroupBytes = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.054925"	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\MemoryUsageKB = "4108"	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\UplinkUsageBps = "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\DownloadMonthlyCdnBytes = "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\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\NormalDownloadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4220"	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\DownloadMonthlyCacheHostBytes = "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\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 (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132892851411063256"	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\MonthlyUploadRestriction = "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\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\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 (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\LinkLocalConnectionCount = "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\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\PriorityDownloadCount = "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 = "4112"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

2960 PING.EXE

pid	process
2960	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

TiWorker.exe18a89b346084c9109761435798a12c4f16b664c39d2260e662ce1e862a43145e.exe

description	pid	process
Token: SeSecurityPrivilege	3700	TiWorker.exe
Token: SeRestorePrivilege	3700	TiWorker.exe
Token: SeBackupPrivilege	3700	TiWorker.exe
Token: SeIncBasePriorityPrivilege	2644	18a89b346084c9109761435798a12c4f16b664c39d2260e662ce1e862a43145e.exe
Token: SeBackupPrivilege	3700	TiWorker.exe
Token: SeRestorePrivilege	3700	TiWorker.exe
Token: SeSecurityPrivilege	3700	TiWorker.exe
Token: SeBackupPrivilege	3700	TiWorker.exe
Token: SeRestorePrivilege	3700	TiWorker.exe
Token: SeSecurityPrivilege	3700	TiWorker.exe
Token: SeBackupPrivilege	3700	TiWorker.exe
Token: SeRestorePrivilege	3700	TiWorker.exe
Token: SeSecurityPrivilege	3700	TiWorker.exe
Token: SeBackupPrivilege	3700	TiWorker.exe
Token: SeRestorePrivilege	3700	TiWorker.exe
Token: SeSecurityPrivilege	3700	TiWorker.exe
Token: SeBackupPrivilege	3700	TiWorker.exe
Token: SeRestorePrivilege	3700	TiWorker.exe
Token: SeSecurityPrivilege	3700	TiWorker.exe
Token: SeBackupPrivilege	3700	TiWorker.exe
Token: SeRestorePrivilege	3700	TiWorker.exe
Token: SeSecurityPrivilege	3700	TiWorker.exe
Token: SeBackupPrivilege	3700	TiWorker.exe
Token: SeRestorePrivilege	3700	TiWorker.exe
Token: SeSecurityPrivilege	3700	TiWorker.exe
Token: SeBackupPrivilege	3700	TiWorker.exe
Token: SeRestorePrivilege	3700	TiWorker.exe
Token: SeSecurityPrivilege	3700	TiWorker.exe
Token: SeBackupPrivilege	3700	TiWorker.exe
Token: SeRestorePrivilege	3700	TiWorker.exe
Token: SeSecurityPrivilege	3700	TiWorker.exe
Token: SeBackupPrivilege	3700	TiWorker.exe
Token: SeRestorePrivilege	3700	TiWorker.exe
Token: SeSecurityPrivilege	3700	TiWorker.exe
Token: SeBackupPrivilege	3700	TiWorker.exe
Token: SeRestorePrivilege	3700	TiWorker.exe
Token: SeSecurityPrivilege	3700	TiWorker.exe
Token: SeBackupPrivilege	3700	TiWorker.exe
Token: SeRestorePrivilege	3700	TiWorker.exe
Token: SeSecurityPrivilege	3700	TiWorker.exe
Token: SeBackupPrivilege	3700	TiWorker.exe
Token: SeRestorePrivilege	3700	TiWorker.exe
Token: SeSecurityPrivilege	3700	TiWorker.exe
Token: SeBackupPrivilege	3700	TiWorker.exe
Token: SeRestorePrivilege	3700	TiWorker.exe
Token: SeSecurityPrivilege	3700	TiWorker.exe
Token: SeBackupPrivilege	3700	TiWorker.exe
Token: SeRestorePrivilege	3700	TiWorker.exe
Token: SeSecurityPrivilege	3700	TiWorker.exe
Token: SeBackupPrivilege	3700	TiWorker.exe
Token: SeRestorePrivilege	3700	TiWorker.exe
Token: SeSecurityPrivilege	3700	TiWorker.exe
Token: SeBackupPrivilege	3700	TiWorker.exe
Token: SeRestorePrivilege	3700	TiWorker.exe
Token: SeSecurityPrivilege	3700	TiWorker.exe
Token: SeBackupPrivilege	3700	TiWorker.exe
Token: SeRestorePrivilege	3700	TiWorker.exe
Token: SeSecurityPrivilege	3700	TiWorker.exe
Token: SeBackupPrivilege	3700	TiWorker.exe
Token: SeRestorePrivilege	3700	TiWorker.exe
Token: SeSecurityPrivilege	3700	TiWorker.exe
Token: SeBackupPrivilege	3700	TiWorker.exe
Token: SeRestorePrivilege	3700	TiWorker.exe
Token: SeSecurityPrivilege	3700	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

18a89b346084c9109761435798a12c4f16b664c39d2260e662ce1e862a43145e.execmd.exe

description	pid	process	target process
PID 2644 wrote to memory of 2188	2644	18a89b346084c9109761435798a12c4f16b664c39d2260e662ce1e862a43145e.exe	MediaCenter.exe
PID 2644 wrote to memory of 2188	2644	18a89b346084c9109761435798a12c4f16b664c39d2260e662ce1e862a43145e.exe	MediaCenter.exe
PID 2644 wrote to memory of 2188	2644	18a89b346084c9109761435798a12c4f16b664c39d2260e662ce1e862a43145e.exe	MediaCenter.exe
PID 2644 wrote to memory of 3088	2644	18a89b346084c9109761435798a12c4f16b664c39d2260e662ce1e862a43145e.exe	cmd.exe
PID 2644 wrote to memory of 3088	2644	18a89b346084c9109761435798a12c4f16b664c39d2260e662ce1e862a43145e.exe	cmd.exe
PID 2644 wrote to memory of 3088	2644	18a89b346084c9109761435798a12c4f16b664c39d2260e662ce1e862a43145e.exe	cmd.exe
PID 3088 wrote to memory of 2960	3088	cmd.exe	PING.EXE
PID 3088 wrote to memory of 2960	3088	cmd.exe	PING.EXE
PID 3088 wrote to memory of 2960	3088	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\18a89b346084c9109761435798a12c4f16b664c39d2260e662ce1e862a43145e.exe
"C:\Users\Admin\AppData\Local\Temp\18a89b346084c9109761435798a12c4f16b664c39d2260e662ce1e862a43145e.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2644

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:2188

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\18a89b346084c9109761435798a12c4f16b664c39d2260e662ce1e862a43145e.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3088

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:2960

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:3780

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:2828

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:3700

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
b404972981ac704b721d017c01f850a0

SHA1
6477c320f6dea2350d91bd2158245450c3b896a3

SHA256
34db777ed7211d15a8e2cdd71b58d941e4b80e7b43bc904bec769aca29d6bc3c

SHA512
6bf9aaca1af185d49624b8625e4ed352cc452e3af8b4e71e545c0b412dce0b9db76e469a49dd11e69b0cd15f87ddb43afeb8f21791632f57272214d7ee79d6cc

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

MD5
b404972981ac704b721d017c01f850a0

SHA1
6477c320f6dea2350d91bd2158245450c3b896a3

SHA256
34db777ed7211d15a8e2cdd71b58d941e4b80e7b43bc904bec769aca29d6bc3c

SHA512
6bf9aaca1af185d49624b8625e4ed352cc452e3af8b4e71e545c0b412dce0b9db76e469a49dd11e69b0cd15f87ddb43afeb8f21791632f57272214d7ee79d6cc

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads