Analysis
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max time kernel
157s -
max time network
165s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 03:22
Static task
static1
Behavioral task
behavioral1
Sample
17c66a2ca49d12bb5b3cb13067997a908551b5a8756b2e745afca45a635367a8.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
17c66a2ca49d12bb5b3cb13067997a908551b5a8756b2e745afca45a635367a8.exe
Resource
win10v2004-en-20220112
General
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Target
17c66a2ca49d12bb5b3cb13067997a908551b5a8756b2e745afca45a635367a8.exe
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Size
176KB
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MD5
d505aea61d332f9099131ca149bd4651
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SHA1
0f06ac3035d622bd152c17e631603a1058236f5c
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SHA256
17c66a2ca49d12bb5b3cb13067997a908551b5a8756b2e745afca45a635367a8
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SHA512
2f1e4ee1bf6e2299104c9badfa173b18fe02241cc445bd74c7bdfdd95cbddff7d25f3290bfbabc277ac9d360aa1e226a62eea20f5b56d89144b83a92bb281d40
Malware Config
Signatures
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Sakula Payload 3 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/1420-132-0x0000000000400000-0x0000000000420000-memory.dmp family_sakula -
Executes dropped EXE 1 IoCs
Processes:
MediaCenter.exepid process 780 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
17c66a2ca49d12bb5b3cb13067997a908551b5a8756b2e745afca45a635367a8.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 17c66a2ca49d12bb5b3cb13067997a908551b5a8756b2e745afca45a635367a8.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
17c66a2ca49d12bb5b3cb13067997a908551b5a8756b2e745afca45a635367a8.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 17c66a2ca49d12bb5b3cb13067997a908551b5a8756b2e745afca45a635367a8.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 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.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\DownloadMonthlyInternetBytes = "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\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\NormalDownloadCount = "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\Config 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\BkDownloadRatePct = "45" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4344" 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\Usage\CPUpct = "0.000000" 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\LANConnectionCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "6.250278" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.769217" 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\DownloadMonthlyLinkLocalBytes = "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\PriorityDownloadPendingCount = "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\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\DownloadMonthlyCdnBytes = "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\UplinkUsageBps = "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 svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4116" 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 = "132892862165832610" 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\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 = "4140" 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\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 (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 (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "8.328296" 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\MonthID = "2" 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\UplinkBps = "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\UploadMonthlyInternetBytes = "0" svchost.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
TiWorker.exe17c66a2ca49d12bb5b3cb13067997a908551b5a8756b2e745afca45a635367a8.exedescription pid process Token: SeSecurityPrivilege 1884 TiWorker.exe Token: SeRestorePrivilege 1884 TiWorker.exe Token: SeBackupPrivilege 1884 TiWorker.exe Token: SeIncBasePriorityPrivilege 1420 17c66a2ca49d12bb5b3cb13067997a908551b5a8756b2e745afca45a635367a8.exe Token: SeBackupPrivilege 1884 TiWorker.exe Token: SeRestorePrivilege 1884 TiWorker.exe Token: SeSecurityPrivilege 1884 TiWorker.exe Token: SeBackupPrivilege 1884 TiWorker.exe Token: SeRestorePrivilege 1884 TiWorker.exe Token: SeSecurityPrivilege 1884 TiWorker.exe Token: SeBackupPrivilege 1884 TiWorker.exe Token: SeRestorePrivilege 1884 TiWorker.exe Token: SeSecurityPrivilege 1884 TiWorker.exe Token: SeBackupPrivilege 1884 TiWorker.exe Token: SeRestorePrivilege 1884 TiWorker.exe Token: SeSecurityPrivilege 1884 TiWorker.exe Token: SeBackupPrivilege 1884 TiWorker.exe Token: SeRestorePrivilege 1884 TiWorker.exe Token: SeSecurityPrivilege 1884 TiWorker.exe Token: SeBackupPrivilege 1884 TiWorker.exe Token: SeRestorePrivilege 1884 TiWorker.exe Token: SeSecurityPrivilege 1884 TiWorker.exe Token: SeBackupPrivilege 1884 TiWorker.exe Token: SeRestorePrivilege 1884 TiWorker.exe Token: SeSecurityPrivilege 1884 TiWorker.exe Token: SeBackupPrivilege 1884 TiWorker.exe Token: SeRestorePrivilege 1884 TiWorker.exe Token: SeSecurityPrivilege 1884 TiWorker.exe Token: SeBackupPrivilege 1884 TiWorker.exe Token: SeRestorePrivilege 1884 TiWorker.exe Token: SeSecurityPrivilege 1884 TiWorker.exe Token: SeBackupPrivilege 1884 TiWorker.exe Token: SeRestorePrivilege 1884 TiWorker.exe Token: SeSecurityPrivilege 1884 TiWorker.exe Token: SeBackupPrivilege 1884 TiWorker.exe Token: SeRestorePrivilege 1884 TiWorker.exe Token: SeSecurityPrivilege 1884 TiWorker.exe Token: SeBackupPrivilege 1884 TiWorker.exe Token: SeRestorePrivilege 1884 TiWorker.exe Token: SeSecurityPrivilege 1884 TiWorker.exe Token: SeBackupPrivilege 1884 TiWorker.exe Token: SeRestorePrivilege 1884 TiWorker.exe Token: SeSecurityPrivilege 1884 TiWorker.exe Token: SeBackupPrivilege 1884 TiWorker.exe Token: SeRestorePrivilege 1884 TiWorker.exe Token: SeSecurityPrivilege 1884 TiWorker.exe Token: SeBackupPrivilege 1884 TiWorker.exe Token: SeRestorePrivilege 1884 TiWorker.exe Token: SeSecurityPrivilege 1884 TiWorker.exe Token: SeBackupPrivilege 1884 TiWorker.exe Token: SeRestorePrivilege 1884 TiWorker.exe Token: SeSecurityPrivilege 1884 TiWorker.exe Token: SeBackupPrivilege 1884 TiWorker.exe Token: SeRestorePrivilege 1884 TiWorker.exe Token: SeSecurityPrivilege 1884 TiWorker.exe Token: SeBackupPrivilege 1884 TiWorker.exe Token: SeRestorePrivilege 1884 TiWorker.exe Token: SeSecurityPrivilege 1884 TiWorker.exe Token: SeBackupPrivilege 1884 TiWorker.exe Token: SeRestorePrivilege 1884 TiWorker.exe Token: SeSecurityPrivilege 1884 TiWorker.exe Token: SeBackupPrivilege 1884 TiWorker.exe Token: SeRestorePrivilege 1884 TiWorker.exe Token: SeSecurityPrivilege 1884 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
17c66a2ca49d12bb5b3cb13067997a908551b5a8756b2e745afca45a635367a8.execmd.exedescription pid process target process PID 1420 wrote to memory of 780 1420 17c66a2ca49d12bb5b3cb13067997a908551b5a8756b2e745afca45a635367a8.exe MediaCenter.exe PID 1420 wrote to memory of 780 1420 17c66a2ca49d12bb5b3cb13067997a908551b5a8756b2e745afca45a635367a8.exe MediaCenter.exe PID 1420 wrote to memory of 780 1420 17c66a2ca49d12bb5b3cb13067997a908551b5a8756b2e745afca45a635367a8.exe MediaCenter.exe PID 1420 wrote to memory of 372 1420 17c66a2ca49d12bb5b3cb13067997a908551b5a8756b2e745afca45a635367a8.exe cmd.exe PID 1420 wrote to memory of 372 1420 17c66a2ca49d12bb5b3cb13067997a908551b5a8756b2e745afca45a635367a8.exe cmd.exe PID 1420 wrote to memory of 372 1420 17c66a2ca49d12bb5b3cb13067997a908551b5a8756b2e745afca45a635367a8.exe cmd.exe PID 372 wrote to memory of 3756 372 cmd.exe PING.EXE PID 372 wrote to memory of 3756 372 cmd.exe PING.EXE PID 372 wrote to memory of 3756 372 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\17c66a2ca49d12bb5b3cb13067997a908551b5a8756b2e745afca45a635367a8.exe"C:\Users\Admin\AppData\Local\Temp\17c66a2ca49d12bb5b3cb13067997a908551b5a8756b2e745afca45a635367a8.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1420 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:780 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\17c66a2ca49d12bb5b3cb13067997a908551b5a8756b2e745afca45a635367a8.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:372 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:3756
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:3772
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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:3564
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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:1884
Network
MITRE ATT&CK Enterprise v6
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Downloads
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MD5
b6f61a94e4ef74a4407dd0a768e04a91
SHA1019fef2dc6245e5ba8c3b3d4b665dd2467320af5
SHA2567c9cb96b776b1c522e97411968978a6ced48a6b7838faf30dc699c476cf300be
SHA5129e3c02c24f88025a8b83ddc9a92459a90126a498e36b77f3b0aa6af3d9ef943f419fdfac90ba6ebc95d7cfc4feb5a90a048e9567ad5a7d30a0089c7bb49ff67d
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MD5
b6f61a94e4ef74a4407dd0a768e04a91
SHA1019fef2dc6245e5ba8c3b3d4b665dd2467320af5
SHA2567c9cb96b776b1c522e97411968978a6ced48a6b7838faf30dc699c476cf300be
SHA5129e3c02c24f88025a8b83ddc9a92459a90126a498e36b77f3b0aa6af3d9ef943f419fdfac90ba6ebc95d7cfc4feb5a90a048e9567ad5a7d30a0089c7bb49ff67d