Analysis
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max time kernel
163s -
max time network
174s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 04:16
Static task
static1
Behavioral task
behavioral1
Sample
15a84a9a0cdab9e372d245962c0c9b8b6bd3eb3dc44ebfb9b90d2165ab468dc8.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
15a84a9a0cdab9e372d245962c0c9b8b6bd3eb3dc44ebfb9b90d2165ab468dc8.exe
Resource
win10v2004-en-20220112
General
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Target
15a84a9a0cdab9e372d245962c0c9b8b6bd3eb3dc44ebfb9b90d2165ab468dc8.exe
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Size
89KB
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MD5
29bb238ad8c9b35cd0360e1090ef7135
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SHA1
8b7d5362ea119819defca267c1fb061631b04c57
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SHA256
15a84a9a0cdab9e372d245962c0c9b8b6bd3eb3dc44ebfb9b90d2165ab468dc8
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SHA512
64eaec3333dad77a0d5731c575b40bc0f73c3add458ed3d55a5f44e7d531bbd495627f9820d5b0e628d83c8392e47b3e1378dd72429a36d6f18531b78588809b
Malware Config
Signatures
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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 -
suricata: ET MALWARE SUSPICIOUS UA (iexplore)
suricata: ET MALWARE SUSPICIOUS UA (iexplore)
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suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1
suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1
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Executes dropped EXE 1 IoCs
Processes:
MediaCenter.exepid process 2540 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
15a84a9a0cdab9e372d245962c0c9b8b6bd3eb3dc44ebfb9b90d2165ab468dc8.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 15a84a9a0cdab9e372d245962c0c9b8b6bd3eb3dc44ebfb9b90d2165ab468dc8.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
15a84a9a0cdab9e372d245962c0c9b8b6bd3eb3dc44ebfb9b90d2165ab468dc8.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 15a84a9a0cdab9e372d245962c0c9b8b6bd3eb3dc44ebfb9b90d2165ab468dc8.exe -
Drops file in Windows directory 3 IoCs
Processes:
svchost.exeTiWorker.exedescription 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.
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
MusNotifyIcon.exedescription 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.exedescription ioc process 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\DownloadMonthlyRateBkCnt = "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\CDNConnectionCount = "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\MemoryUsageKB = "4116" 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\UplinkBps = "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\DownloadMonthlyCdnBytes = "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\CacheSizeBytes = "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\LinkLocalConnectionCount = "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\SwarmCount = "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\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\PeerInfoCount = "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\DownlinkBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4048" 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\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\UplinkUsageBps = "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 (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "2.083398" svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Settings svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.040096" 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\Config\KVFileExpirationTime = "132892894583031380" 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 (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\NormalDownloadPendingCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4152" 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 = "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 (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 (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\PriorityDownloadCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DODownloadMode = "1" svchost.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
TiWorker.exedescription pid process Token: SeSecurityPrivilege 4060 TiWorker.exe Token: SeRestorePrivilege 4060 TiWorker.exe Token: SeBackupPrivilege 4060 TiWorker.exe Token: SeBackupPrivilege 4060 TiWorker.exe Token: SeRestorePrivilege 4060 TiWorker.exe Token: SeSecurityPrivilege 4060 TiWorker.exe Token: SeBackupPrivilege 4060 TiWorker.exe Token: SeRestorePrivilege 4060 TiWorker.exe Token: SeSecurityPrivilege 4060 TiWorker.exe Token: SeBackupPrivilege 4060 TiWorker.exe Token: SeRestorePrivilege 4060 TiWorker.exe Token: SeSecurityPrivilege 4060 TiWorker.exe Token: SeBackupPrivilege 4060 TiWorker.exe Token: SeRestorePrivilege 4060 TiWorker.exe Token: SeSecurityPrivilege 4060 TiWorker.exe Token: SeBackupPrivilege 4060 TiWorker.exe Token: SeRestorePrivilege 4060 TiWorker.exe Token: SeSecurityPrivilege 4060 TiWorker.exe Token: SeBackupPrivilege 4060 TiWorker.exe Token: SeRestorePrivilege 4060 TiWorker.exe Token: SeSecurityPrivilege 4060 TiWorker.exe Token: SeBackupPrivilege 4060 TiWorker.exe Token: SeRestorePrivilege 4060 TiWorker.exe Token: SeSecurityPrivilege 4060 TiWorker.exe Token: SeBackupPrivilege 4060 TiWorker.exe Token: SeRestorePrivilege 4060 TiWorker.exe Token: SeSecurityPrivilege 4060 TiWorker.exe Token: SeBackupPrivilege 4060 TiWorker.exe Token: SeRestorePrivilege 4060 TiWorker.exe Token: SeSecurityPrivilege 4060 TiWorker.exe Token: SeBackupPrivilege 4060 TiWorker.exe Token: SeRestorePrivilege 4060 TiWorker.exe Token: SeSecurityPrivilege 4060 TiWorker.exe Token: SeBackupPrivilege 4060 TiWorker.exe Token: SeRestorePrivilege 4060 TiWorker.exe Token: SeSecurityPrivilege 4060 TiWorker.exe Token: SeBackupPrivilege 4060 TiWorker.exe Token: SeRestorePrivilege 4060 TiWorker.exe Token: SeSecurityPrivilege 4060 TiWorker.exe Token: SeBackupPrivilege 4060 TiWorker.exe Token: SeRestorePrivilege 4060 TiWorker.exe Token: SeSecurityPrivilege 4060 TiWorker.exe Token: SeBackupPrivilege 4060 TiWorker.exe Token: SeRestorePrivilege 4060 TiWorker.exe Token: SeSecurityPrivilege 4060 TiWorker.exe Token: SeBackupPrivilege 4060 TiWorker.exe Token: SeRestorePrivilege 4060 TiWorker.exe Token: SeSecurityPrivilege 4060 TiWorker.exe Token: SeBackupPrivilege 4060 TiWorker.exe Token: SeRestorePrivilege 4060 TiWorker.exe Token: SeSecurityPrivilege 4060 TiWorker.exe Token: SeBackupPrivilege 4060 TiWorker.exe Token: SeRestorePrivilege 4060 TiWorker.exe Token: SeSecurityPrivilege 4060 TiWorker.exe Token: SeBackupPrivilege 4060 TiWorker.exe Token: SeRestorePrivilege 4060 TiWorker.exe Token: SeSecurityPrivilege 4060 TiWorker.exe Token: SeBackupPrivilege 4060 TiWorker.exe Token: SeRestorePrivilege 4060 TiWorker.exe Token: SeSecurityPrivilege 4060 TiWorker.exe Token: SeBackupPrivilege 4060 TiWorker.exe Token: SeRestorePrivilege 4060 TiWorker.exe Token: SeSecurityPrivilege 4060 TiWorker.exe Token: SeBackupPrivilege 4060 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
15a84a9a0cdab9e372d245962c0c9b8b6bd3eb3dc44ebfb9b90d2165ab468dc8.execmd.exedescription pid process target process PID 2648 wrote to memory of 2540 2648 15a84a9a0cdab9e372d245962c0c9b8b6bd3eb3dc44ebfb9b90d2165ab468dc8.exe MediaCenter.exe PID 2648 wrote to memory of 2540 2648 15a84a9a0cdab9e372d245962c0c9b8b6bd3eb3dc44ebfb9b90d2165ab468dc8.exe MediaCenter.exe PID 2648 wrote to memory of 2540 2648 15a84a9a0cdab9e372d245962c0c9b8b6bd3eb3dc44ebfb9b90d2165ab468dc8.exe MediaCenter.exe PID 2648 wrote to memory of 3648 2648 15a84a9a0cdab9e372d245962c0c9b8b6bd3eb3dc44ebfb9b90d2165ab468dc8.exe cmd.exe PID 2648 wrote to memory of 3648 2648 15a84a9a0cdab9e372d245962c0c9b8b6bd3eb3dc44ebfb9b90d2165ab468dc8.exe cmd.exe PID 2648 wrote to memory of 3648 2648 15a84a9a0cdab9e372d245962c0c9b8b6bd3eb3dc44ebfb9b90d2165ab468dc8.exe cmd.exe PID 3648 wrote to memory of 2108 3648 cmd.exe PING.EXE PID 3648 wrote to memory of 2108 3648 cmd.exe PING.EXE PID 3648 wrote to memory of 2108 3648 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\15a84a9a0cdab9e372d245962c0c9b8b6bd3eb3dc44ebfb9b90d2165ab468dc8.exe"C:\Users\Admin\AppData\Local\Temp\15a84a9a0cdab9e372d245962c0c9b8b6bd3eb3dc44ebfb9b90d2165ab468dc8.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2648 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:2540 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\15a84a9a0cdab9e372d245962c0c9b8b6bd3eb3dc44ebfb9b90d2165ab468dc8.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:3648 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:2108
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:628
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k NetworkService -p1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
PID:3048
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C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exeC:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:4060
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
f0c0a09bb9898bd48844e3ddd1393c44
SHA1299e9ece84635f330ef2193353ca349cb5ef8cfa
SHA2561f8626cac48e1c383614bc02134ab3dfceffecfa4f5ac7d380353be8c2d4ed9d
SHA512d4731e085682271fab86bef74c5e78dfc5e6bd9e02204e1a1e669b53bf0b7a4ff61f7932e9683a80b2902acf7dd70210729b132a154c81493af5af6373ee6065
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MD5
f0c0a09bb9898bd48844e3ddd1393c44
SHA1299e9ece84635f330ef2193353ca349cb5ef8cfa
SHA2561f8626cac48e1c383614bc02134ab3dfceffecfa4f5ac7d380353be8c2d4ed9d
SHA512d4731e085682271fab86bef74c5e78dfc5e6bd9e02204e1a1e669b53bf0b7a4ff61f7932e9683a80b2902acf7dd70210729b132a154c81493af5af6373ee6065