Analysis
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max time kernel
154s -
max time network
168s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 09:46
Static task
static1
Behavioral task
behavioral1
Sample
091751c441f73ec452289edc4f8996d03ffa836df68db13e369b460c3af06f79.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
091751c441f73ec452289edc4f8996d03ffa836df68db13e369b460c3af06f79.exe
Resource
win10v2004-en-20220112
General
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Target
091751c441f73ec452289edc4f8996d03ffa836df68db13e369b460c3af06f79.exe
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Size
80KB
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MD5
4ebe8c3822c2bffd4a8bdbbc29c6754d
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SHA1
d6f50eabc1794031d89f5f080a16ca6d30ee60e1
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SHA256
091751c441f73ec452289edc4f8996d03ffa836df68db13e369b460c3af06f79
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SHA512
e011ab23839d44b587bed12d5c8a1dcd4ddc1bcbf4fbd0c15a82310529cf927f28a5c009dde02dabe26eb8d28e11e055d3cdb648638f56fec01cf012b516ea4c
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 -
Executes dropped EXE 1 IoCs
Processes:
MediaCenter.exepid process 2224 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
091751c441f73ec452289edc4f8996d03ffa836df68db13e369b460c3af06f79.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 091751c441f73ec452289edc4f8996d03ffa836df68db13e369b460c3af06f79.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
091751c441f73ec452289edc4f8996d03ffa836df68db13e369b460c3af06f79.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 091751c441f73ec452289edc4f8996d03ffa836df68db13e369b460c3af06f79.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 53 IoCs
Processes:
svchost.exedescription ioc process 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\PriorityDownloadCount = "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\LANConnectionCount = "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\Config\DownloadMode_BackCompat = "1" 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\DownloadMonthlyInternetBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadPendingCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.124481" 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\CDNConnectionCount = "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\DownloadMonthlyCacheHostBytes = "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\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\NormalDownloadPendingCount = "0" svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization 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\DODownloadMode = "1" 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\FrDownloadRatePct = "90" 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\UploadCount = "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\SwarmCount = "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\InternetConnectionCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4308" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132893097985785254" 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 = "90228624" 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\DownloadMonthlyRateBkCnt = "4" 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\MemoryUsageKB = "4100" 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\MonthID = "2" 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\UplinkBps = "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\UploadRatePct = "100" 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\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\MonthlyUploadRestriction = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "7.142841" 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\DownlinkUsageBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkUsageBps = "0" svchost.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
091751c441f73ec452289edc4f8996d03ffa836df68db13e369b460c3af06f79.exeTiWorker.exedescription pid process Token: SeIncBasePriorityPrivilege 1016 091751c441f73ec452289edc4f8996d03ffa836df68db13e369b460c3af06f79.exe Token: SeSecurityPrivilege 2604 TiWorker.exe Token: SeRestorePrivilege 2604 TiWorker.exe Token: SeBackupPrivilege 2604 TiWorker.exe Token: SeBackupPrivilege 2604 TiWorker.exe Token: SeRestorePrivilege 2604 TiWorker.exe Token: SeSecurityPrivilege 2604 TiWorker.exe Token: SeBackupPrivilege 2604 TiWorker.exe Token: SeRestorePrivilege 2604 TiWorker.exe Token: SeSecurityPrivilege 2604 TiWorker.exe Token: SeBackupPrivilege 2604 TiWorker.exe Token: SeRestorePrivilege 2604 TiWorker.exe Token: SeSecurityPrivilege 2604 TiWorker.exe Token: SeBackupPrivilege 2604 TiWorker.exe Token: SeRestorePrivilege 2604 TiWorker.exe Token: SeSecurityPrivilege 2604 TiWorker.exe Token: SeBackupPrivilege 2604 TiWorker.exe Token: SeRestorePrivilege 2604 TiWorker.exe Token: SeSecurityPrivilege 2604 TiWorker.exe Token: SeBackupPrivilege 2604 TiWorker.exe Token: SeRestorePrivilege 2604 TiWorker.exe Token: SeSecurityPrivilege 2604 TiWorker.exe Token: SeBackupPrivilege 2604 TiWorker.exe Token: SeRestorePrivilege 2604 TiWorker.exe Token: SeSecurityPrivilege 2604 TiWorker.exe Token: SeBackupPrivilege 2604 TiWorker.exe Token: SeRestorePrivilege 2604 TiWorker.exe Token: SeSecurityPrivilege 2604 TiWorker.exe Token: SeBackupPrivilege 2604 TiWorker.exe Token: SeRestorePrivilege 2604 TiWorker.exe Token: SeSecurityPrivilege 2604 TiWorker.exe Token: SeBackupPrivilege 2604 TiWorker.exe Token: SeRestorePrivilege 2604 TiWorker.exe Token: SeSecurityPrivilege 2604 TiWorker.exe Token: SeBackupPrivilege 2604 TiWorker.exe Token: SeRestorePrivilege 2604 TiWorker.exe Token: SeSecurityPrivilege 2604 TiWorker.exe Token: SeBackupPrivilege 2604 TiWorker.exe Token: SeRestorePrivilege 2604 TiWorker.exe Token: SeSecurityPrivilege 2604 TiWorker.exe Token: SeBackupPrivilege 2604 TiWorker.exe Token: SeRestorePrivilege 2604 TiWorker.exe Token: SeSecurityPrivilege 2604 TiWorker.exe Token: SeBackupPrivilege 2604 TiWorker.exe Token: SeRestorePrivilege 2604 TiWorker.exe Token: SeSecurityPrivilege 2604 TiWorker.exe Token: SeBackupPrivilege 2604 TiWorker.exe Token: SeRestorePrivilege 2604 TiWorker.exe Token: SeSecurityPrivilege 2604 TiWorker.exe Token: SeBackupPrivilege 2604 TiWorker.exe Token: SeRestorePrivilege 2604 TiWorker.exe Token: SeSecurityPrivilege 2604 TiWorker.exe Token: SeBackupPrivilege 2604 TiWorker.exe Token: SeRestorePrivilege 2604 TiWorker.exe Token: SeSecurityPrivilege 2604 TiWorker.exe Token: SeBackupPrivilege 2604 TiWorker.exe Token: SeRestorePrivilege 2604 TiWorker.exe Token: SeSecurityPrivilege 2604 TiWorker.exe Token: SeBackupPrivilege 2604 TiWorker.exe Token: SeRestorePrivilege 2604 TiWorker.exe Token: SeSecurityPrivilege 2604 TiWorker.exe Token: SeBackupPrivilege 2604 TiWorker.exe Token: SeRestorePrivilege 2604 TiWorker.exe Token: SeSecurityPrivilege 2604 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
091751c441f73ec452289edc4f8996d03ffa836df68db13e369b460c3af06f79.execmd.exedescription pid process target process PID 1016 wrote to memory of 2224 1016 091751c441f73ec452289edc4f8996d03ffa836df68db13e369b460c3af06f79.exe MediaCenter.exe PID 1016 wrote to memory of 2224 1016 091751c441f73ec452289edc4f8996d03ffa836df68db13e369b460c3af06f79.exe MediaCenter.exe PID 1016 wrote to memory of 2224 1016 091751c441f73ec452289edc4f8996d03ffa836df68db13e369b460c3af06f79.exe MediaCenter.exe PID 1016 wrote to memory of 3856 1016 091751c441f73ec452289edc4f8996d03ffa836df68db13e369b460c3af06f79.exe cmd.exe PID 1016 wrote to memory of 3856 1016 091751c441f73ec452289edc4f8996d03ffa836df68db13e369b460c3af06f79.exe cmd.exe PID 1016 wrote to memory of 3856 1016 091751c441f73ec452289edc4f8996d03ffa836df68db13e369b460c3af06f79.exe cmd.exe PID 3856 wrote to memory of 556 3856 cmd.exe PING.EXE PID 3856 wrote to memory of 556 3856 cmd.exe PING.EXE PID 3856 wrote to memory of 556 3856 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\091751c441f73ec452289edc4f8996d03ffa836df68db13e369b460c3af06f79.exe"C:\Users\Admin\AppData\Local\Temp\091751c441f73ec452289edc4f8996d03ffa836df68db13e369b460c3af06f79.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1016 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:2224 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\091751c441f73ec452289edc4f8996d03ffa836df68db13e369b460c3af06f79.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:3856 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:556
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:4044
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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:2988
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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:2604
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
788b3f5274f4b7639e10fa548b7790da
SHA136b9cae85977598d9e71605b272ff10fe78c18c4
SHA256240f0fec2c779110a41a4872cb6a2c95322210a2fdb5b2b8b564468befe3b6d0
SHA5124f385bb776adf0056728e3d3432a05d8c6aa11cd8bd595f1e4a2f4939a747113b3603cf24f8a73d49721536e8d96658fef892e07cf2ec04b761dacf5ffae3e9a
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C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeMD5
788b3f5274f4b7639e10fa548b7790da
SHA136b9cae85977598d9e71605b272ff10fe78c18c4
SHA256240f0fec2c779110a41a4872cb6a2c95322210a2fdb5b2b8b564468befe3b6d0
SHA5124f385bb776adf0056728e3d3432a05d8c6aa11cd8bd595f1e4a2f4939a747113b3603cf24f8a73d49721536e8d96658fef892e07cf2ec04b761dacf5ffae3e9a