sakula | 16fd3ddf1bb9f256a8bfbd366c11b0850b82034901e355db18b828a2d8ac0524

General

Target

16fd3ddf1bb9f256a8bfbd366c11b0850b82034901e355db18b828a2d8ac0524.exe
Size

99KB
MD5

ec08c115d208bc8c52eb2bab322e3cee
SHA1

5f86be200dbb43e368ee4eef6a8190e677acf321
SHA256

16fd3ddf1bb9f256a8bfbd366c11b0850b82034901e355db18b828a2d8ac0524
SHA512

a0b28cc854c23a94330ef3add2d8a24b93ac3060a6d12681a43ea689734bcfe2a43790ece9b8d672f4e20f06245d1d04f13aa91342d81e5980363f07db9db6a4

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

2324 MediaCenter.exe

pid	process
2324	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:

16fd3ddf1bb9f256a8bfbd366c11b0850b82034901e355db18b828a2d8ac0524.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	16fd3ddf1bb9f256a8bfbd366c11b0850b82034901e355db18b828a2d8ac0524.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

16fd3ddf1bb9f256a8bfbd366c11b0850b82034901e355db18b828a2d8ac0524.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"	16fd3ddf1bb9f256a8bfbd366c11b0850b82034901e355db18b828a2d8ac0524.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 49 IoCs

Processes:

svchost.exe

description	ioc	process
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\DownloadMonthlyRateFrBps = "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\DownloadMonthlyGroupBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132892873564936023"	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\LinkLocalConnectionCount = "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\Config\DownloadMode_BackCompat = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyInternetBytes = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "1.886798"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.000000"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Settings	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\DownloadMonthlyRateBkBps = "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\MemoryUsageKB = "4368"	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\DownloadMonthlyLinkLocalBytes = "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\UploadRatePct = "100"	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\DownloadMonthlyCdnBytes = "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\UploadCount = "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\UploadMonthlyLanBytes = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "1.051046"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4164"	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\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\DownlinkUsageBps = "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\DownloadMonthlyCacheHostBytes = "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\SwarmCount = "1"	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
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\UplinkBps = "0"	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\MonthlyUploadRestriction = "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\LANConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownlinkBps = "0"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

904 PING.EXE

pid	process
904	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

16fd3ddf1bb9f256a8bfbd366c11b0850b82034901e355db18b828a2d8ac0524.exeTiWorker.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	60	16fd3ddf1bb9f256a8bfbd366c11b0850b82034901e355db18b828a2d8ac0524.exe
Token: SeSecurityPrivilege	3812	TiWorker.exe
Token: SeRestorePrivilege	3812	TiWorker.exe
Token: SeBackupPrivilege	3812	TiWorker.exe
Token: SeBackupPrivilege	3812	TiWorker.exe
Token: SeRestorePrivilege	3812	TiWorker.exe
Token: SeSecurityPrivilege	3812	TiWorker.exe
Token: SeBackupPrivilege	3812	TiWorker.exe
Token: SeRestorePrivilege	3812	TiWorker.exe
Token: SeSecurityPrivilege	3812	TiWorker.exe
Token: SeBackupPrivilege	3812	TiWorker.exe
Token: SeRestorePrivilege	3812	TiWorker.exe
Token: SeSecurityPrivilege	3812	TiWorker.exe
Token: SeBackupPrivilege	3812	TiWorker.exe
Token: SeRestorePrivilege	3812	TiWorker.exe
Token: SeSecurityPrivilege	3812	TiWorker.exe
Token: SeBackupPrivilege	3812	TiWorker.exe
Token: SeRestorePrivilege	3812	TiWorker.exe
Token: SeSecurityPrivilege	3812	TiWorker.exe
Token: SeBackupPrivilege	3812	TiWorker.exe
Token: SeRestorePrivilege	3812	TiWorker.exe
Token: SeSecurityPrivilege	3812	TiWorker.exe
Token: SeBackupPrivilege	3812	TiWorker.exe
Token: SeRestorePrivilege	3812	TiWorker.exe
Token: SeSecurityPrivilege	3812	TiWorker.exe
Token: SeBackupPrivilege	3812	TiWorker.exe
Token: SeRestorePrivilege	3812	TiWorker.exe
Token: SeSecurityPrivilege	3812	TiWorker.exe
Token: SeBackupPrivilege	3812	TiWorker.exe
Token: SeRestorePrivilege	3812	TiWorker.exe
Token: SeSecurityPrivilege	3812	TiWorker.exe
Token: SeBackupPrivilege	3812	TiWorker.exe
Token: SeRestorePrivilege	3812	TiWorker.exe
Token: SeSecurityPrivilege	3812	TiWorker.exe
Token: SeBackupPrivilege	3812	TiWorker.exe
Token: SeRestorePrivilege	3812	TiWorker.exe
Token: SeSecurityPrivilege	3812	TiWorker.exe
Token: SeBackupPrivilege	3812	TiWorker.exe
Token: SeRestorePrivilege	3812	TiWorker.exe
Token: SeSecurityPrivilege	3812	TiWorker.exe
Token: SeBackupPrivilege	3812	TiWorker.exe
Token: SeRestorePrivilege	3812	TiWorker.exe
Token: SeSecurityPrivilege	3812	TiWorker.exe
Token: SeBackupPrivilege	3812	TiWorker.exe
Token: SeRestorePrivilege	3812	TiWorker.exe
Token: SeSecurityPrivilege	3812	TiWorker.exe
Token: SeBackupPrivilege	3812	TiWorker.exe
Token: SeRestorePrivilege	3812	TiWorker.exe
Token: SeSecurityPrivilege	3812	TiWorker.exe
Token: SeBackupPrivilege	3812	TiWorker.exe
Token: SeRestorePrivilege	3812	TiWorker.exe
Token: SeSecurityPrivilege	3812	TiWorker.exe
Token: SeBackupPrivilege	3812	TiWorker.exe
Token: SeRestorePrivilege	3812	TiWorker.exe
Token: SeSecurityPrivilege	3812	TiWorker.exe
Token: SeBackupPrivilege	3812	TiWorker.exe
Token: SeRestorePrivilege	3812	TiWorker.exe
Token: SeSecurityPrivilege	3812	TiWorker.exe
Token: SeBackupPrivilege	3812	TiWorker.exe
Token: SeRestorePrivilege	3812	TiWorker.exe
Token: SeSecurityPrivilege	3812	TiWorker.exe
Token: SeBackupPrivilege	3812	TiWorker.exe
Token: SeRestorePrivilege	3812	TiWorker.exe
Token: SeSecurityPrivilege	3812	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

16fd3ddf1bb9f256a8bfbd366c11b0850b82034901e355db18b828a2d8ac0524.execmd.exe

description	pid	process	target process
PID 60 wrote to memory of 2324	60	16fd3ddf1bb9f256a8bfbd366c11b0850b82034901e355db18b828a2d8ac0524.exe	MediaCenter.exe
PID 60 wrote to memory of 2324	60	16fd3ddf1bb9f256a8bfbd366c11b0850b82034901e355db18b828a2d8ac0524.exe	MediaCenter.exe
PID 60 wrote to memory of 2324	60	16fd3ddf1bb9f256a8bfbd366c11b0850b82034901e355db18b828a2d8ac0524.exe	MediaCenter.exe
PID 60 wrote to memory of 3376	60	16fd3ddf1bb9f256a8bfbd366c11b0850b82034901e355db18b828a2d8ac0524.exe	cmd.exe
PID 60 wrote to memory of 3376	60	16fd3ddf1bb9f256a8bfbd366c11b0850b82034901e355db18b828a2d8ac0524.exe	cmd.exe
PID 60 wrote to memory of 3376	60	16fd3ddf1bb9f256a8bfbd366c11b0850b82034901e355db18b828a2d8ac0524.exe	cmd.exe
PID 3376 wrote to memory of 904	3376	cmd.exe	PING.EXE
PID 3376 wrote to memory of 904	3376	cmd.exe	PING.EXE
PID 3376 wrote to memory of 904	3376	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\16fd3ddf1bb9f256a8bfbd366c11b0850b82034901e355db18b828a2d8ac0524.exe
"C:\Users\Admin\AppData\Local\Temp\16fd3ddf1bb9f256a8bfbd366c11b0850b82034901e355db18b828a2d8ac0524.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:60

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:2324

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\16fd3ddf1bb9f256a8bfbd366c11b0850b82034901e355db18b828a2d8ac0524.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3376

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:904

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:2100

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:1456

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:3812

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
580297cd65cdc4682922aa70560e6bdb

SHA1
1f6b767f1ecd09a44df47aa09b4f8e3d9357c566

SHA256
d7feaf7c79bb22ce0ed8f68123e5248f5b2e5ee87dfc95d249ae7113200e8f05

SHA512
c6762fb1e99821a6b12e8d59bfcff63c627882a745d612fe50b7b85da1ac648aa6f85ee9193d28c89d8f751ec8967a0a3a78c9cddc9f2024d1b9d278f682b56d

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

MD5
580297cd65cdc4682922aa70560e6bdb

SHA1
1f6b767f1ecd09a44df47aa09b4f8e3d9357c566

SHA256
d7feaf7c79bb22ce0ed8f68123e5248f5b2e5ee87dfc95d249ae7113200e8f05

SHA512
c6762fb1e99821a6b12e8d59bfcff63c627882a745d612fe50b7b85da1ac648aa6f85ee9193d28c89d8f751ec8967a0a3a78c9cddc9f2024d1b9d278f682b56d

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads