Analysis
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max time kernel
190s -
max time network
202s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 11:14
Static task
static1
Behavioral task
behavioral1
Sample
04eda4f3e4e7a8319062a82501d7428683858f6473f49240fe65a75310b7e2ab.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
04eda4f3e4e7a8319062a82501d7428683858f6473f49240fe65a75310b7e2ab.exe
Resource
win10v2004-en-20220112
General
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Target
04eda4f3e4e7a8319062a82501d7428683858f6473f49240fe65a75310b7e2ab.exe
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Size
216KB
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MD5
419055ad9faf61697088b7b6d57375a8
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SHA1
19732407915520838b827d3ec45560d24322bd97
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SHA256
04eda4f3e4e7a8319062a82501d7428683858f6473f49240fe65a75310b7e2ab
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SHA512
c185a7a1e0a1e611d394717e14bc985620119b60baff4b2fb1e440f04e546048236bc3c1adf265d751d36fd49bdd4cb2b01fa730091edaa84c42fa6ceea64789
Malware Config
Signatures
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Sakula Payload 4 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 behavioral2/memory/4008-132-0x0000000000400000-0x0000000000420000-memory.dmp family_sakula behavioral2/memory/1092-133-0x0000000000400000-0x0000000000420000-memory.dmp 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 1092 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
04eda4f3e4e7a8319062a82501d7428683858f6473f49240fe65a75310b7e2ab.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 04eda4f3e4e7a8319062a82501d7428683858f6473f49240fe65a75310b7e2ab.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
04eda4f3e4e7a8319062a82501d7428683858f6473f49240fe65a75310b7e2ab.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 04eda4f3e4e7a8319062a82501d7428683858f6473f49240fe65a75310b7e2ab.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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Modifies data under HKEY_USERS 55 IoCs
Processes:
svchost.exedescription ioc process 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\DownloadMonthlyCdnBytes = "90228624" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkBps = "1157726" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadRatePct = "100" svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config 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\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\UploadMonthlyInternetBytes = "0" 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\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\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\Config\DODownloadMode = "1" 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\DownlinkUsageBps = "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\GroupConnectionCount = "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\Config\KVFileExpirationTime = "132893157142277494" 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\MemoryUsageKB = "4264" 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\MonthID = "1" 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 = "25.017012" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.006578" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkCnt = "4" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "9.999414" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "3992" 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\DownloadMonthlyRateFrBps = "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\MemoryUsageKB = "4072" 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\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\UploadMonthlyLanBytes = "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\PriorityDownloadCount = "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 = "5.357136" 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\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\Usage 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\BkDownloadRatePct = "45" 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\MonthID = "2" 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\LinkLocalConnectionCount = "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\DownloadMonthlyRateBkBps = "0" 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 3732 TiWorker.exe Token: SeRestorePrivilege 3732 TiWorker.exe Token: SeBackupPrivilege 3732 TiWorker.exe Token: SeBackupPrivilege 3732 TiWorker.exe Token: SeRestorePrivilege 3732 TiWorker.exe Token: SeSecurityPrivilege 3732 TiWorker.exe Token: SeBackupPrivilege 3732 TiWorker.exe Token: SeRestorePrivilege 3732 TiWorker.exe Token: SeSecurityPrivilege 3732 TiWorker.exe Token: SeBackupPrivilege 3732 TiWorker.exe Token: SeRestorePrivilege 3732 TiWorker.exe Token: SeSecurityPrivilege 3732 TiWorker.exe Token: SeBackupPrivilege 3732 TiWorker.exe Token: SeRestorePrivilege 3732 TiWorker.exe Token: SeSecurityPrivilege 3732 TiWorker.exe Token: SeBackupPrivilege 3732 TiWorker.exe Token: SeRestorePrivilege 3732 TiWorker.exe Token: SeSecurityPrivilege 3732 TiWorker.exe Token: SeBackupPrivilege 3732 TiWorker.exe Token: SeRestorePrivilege 3732 TiWorker.exe Token: SeSecurityPrivilege 3732 TiWorker.exe Token: SeBackupPrivilege 3732 TiWorker.exe Token: SeRestorePrivilege 3732 TiWorker.exe Token: SeSecurityPrivilege 3732 TiWorker.exe Token: SeBackupPrivilege 3732 TiWorker.exe Token: SeRestorePrivilege 3732 TiWorker.exe Token: SeSecurityPrivilege 3732 TiWorker.exe Token: SeBackupPrivilege 3732 TiWorker.exe Token: SeRestorePrivilege 3732 TiWorker.exe Token: SeSecurityPrivilege 3732 TiWorker.exe Token: SeBackupPrivilege 3732 TiWorker.exe Token: SeRestorePrivilege 3732 TiWorker.exe Token: SeSecurityPrivilege 3732 TiWorker.exe Token: SeBackupPrivilege 3732 TiWorker.exe Token: SeRestorePrivilege 3732 TiWorker.exe Token: SeSecurityPrivilege 3732 TiWorker.exe Token: SeBackupPrivilege 3732 TiWorker.exe Token: SeRestorePrivilege 3732 TiWorker.exe Token: SeSecurityPrivilege 3732 TiWorker.exe Token: SeBackupPrivilege 3732 TiWorker.exe Token: SeRestorePrivilege 3732 TiWorker.exe Token: SeSecurityPrivilege 3732 TiWorker.exe Token: SeBackupPrivilege 3732 TiWorker.exe Token: SeRestorePrivilege 3732 TiWorker.exe Token: SeSecurityPrivilege 3732 TiWorker.exe Token: SeBackupPrivilege 3732 TiWorker.exe Token: SeRestorePrivilege 3732 TiWorker.exe Token: SeSecurityPrivilege 3732 TiWorker.exe Token: SeBackupPrivilege 3732 TiWorker.exe Token: SeRestorePrivilege 3732 TiWorker.exe Token: SeSecurityPrivilege 3732 TiWorker.exe Token: SeBackupPrivilege 3732 TiWorker.exe Token: SeRestorePrivilege 3732 TiWorker.exe Token: SeSecurityPrivilege 3732 TiWorker.exe Token: SeBackupPrivilege 3732 TiWorker.exe Token: SeRestorePrivilege 3732 TiWorker.exe Token: SeSecurityPrivilege 3732 TiWorker.exe Token: SeBackupPrivilege 3732 TiWorker.exe Token: SeRestorePrivilege 3732 TiWorker.exe Token: SeSecurityPrivilege 3732 TiWorker.exe Token: SeBackupPrivilege 3732 TiWorker.exe Token: SeRestorePrivilege 3732 TiWorker.exe Token: SeSecurityPrivilege 3732 TiWorker.exe Token: SeBackupPrivilege 3732 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
04eda4f3e4e7a8319062a82501d7428683858f6473f49240fe65a75310b7e2ab.execmd.exedescription pid process target process PID 4008 wrote to memory of 1092 4008 04eda4f3e4e7a8319062a82501d7428683858f6473f49240fe65a75310b7e2ab.exe MediaCenter.exe PID 4008 wrote to memory of 1092 4008 04eda4f3e4e7a8319062a82501d7428683858f6473f49240fe65a75310b7e2ab.exe MediaCenter.exe PID 4008 wrote to memory of 1092 4008 04eda4f3e4e7a8319062a82501d7428683858f6473f49240fe65a75310b7e2ab.exe MediaCenter.exe PID 4008 wrote to memory of 2776 4008 04eda4f3e4e7a8319062a82501d7428683858f6473f49240fe65a75310b7e2ab.exe cmd.exe PID 4008 wrote to memory of 2776 4008 04eda4f3e4e7a8319062a82501d7428683858f6473f49240fe65a75310b7e2ab.exe cmd.exe PID 4008 wrote to memory of 2776 4008 04eda4f3e4e7a8319062a82501d7428683858f6473f49240fe65a75310b7e2ab.exe cmd.exe PID 2776 wrote to memory of 1776 2776 cmd.exe PING.EXE PID 2776 wrote to memory of 1776 2776 cmd.exe PING.EXE PID 2776 wrote to memory of 1776 2776 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\04eda4f3e4e7a8319062a82501d7428683858f6473f49240fe65a75310b7e2ab.exe"C:\Users\Admin\AppData\Local\Temp\04eda4f3e4e7a8319062a82501d7428683858f6473f49240fe65a75310b7e2ab.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4008 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:1092 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\04eda4f3e4e7a8319062a82501d7428683858f6473f49240fe65a75310b7e2ab.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:2776 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:1776
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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:2632
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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:3732
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeMD5
60ed051cd1eeac371c69d5f52e2eff5a
SHA16b5e9a552a966b95be61136b8946e12a85187f65
SHA256b7dcfc0dd85ea63de1a81a56fd33bf52925782bf92b96adc5d14388f5ddb4caf
SHA512e961d9ec3e037a96f28291745d69dd6b7a3d8170bb04d6095be10d888f041dea8922e42605c2a060f50d3c92722e12a556f1713321255c86d87851a66286ff53
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C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeMD5
60ed051cd1eeac371c69d5f52e2eff5a
SHA16b5e9a552a966b95be61136b8946e12a85187f65
SHA256b7dcfc0dd85ea63de1a81a56fd33bf52925782bf92b96adc5d14388f5ddb4caf
SHA512e961d9ec3e037a96f28291745d69dd6b7a3d8170bb04d6095be10d888f041dea8922e42605c2a060f50d3c92722e12a556f1713321255c86d87851a66286ff53
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memory/1092-133-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/4008-132-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB