Analysis
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max time kernel
153s -
max time network
168s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 04:04
Static task
static1
Behavioral task
behavioral1
Sample
16188b53bb2d17c9e1d5c07cbe3541b5acd099da9e57e0be582d863de8777cc2.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
16188b53bb2d17c9e1d5c07cbe3541b5acd099da9e57e0be582d863de8777cc2.exe
Resource
win10v2004-en-20220112
General
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Target
16188b53bb2d17c9e1d5c07cbe3541b5acd099da9e57e0be582d863de8777cc2.exe
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Size
216KB
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MD5
a53e68dc3710fb8fe16a1dca084b65b7
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SHA1
29d0a68127465009d7f57208ee1f793f12b6a44f
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SHA256
16188b53bb2d17c9e1d5c07cbe3541b5acd099da9e57e0be582d863de8777cc2
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SHA512
1c9d3e1b59555310559908fa223acb22c1f74e2147473eef5a3740b1484d31ff2c0afb99e5ebe77b83760647d380af65ac82c72ed40f05f6b2f811157452a69c
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/924-132-0x0000000000400000-0x0000000000420000-memory.dmp family_sakula behavioral2/memory/684-133-0x0000000000400000-0x0000000000420000-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 684 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
16188b53bb2d17c9e1d5c07cbe3541b5acd099da9e57e0be582d863de8777cc2.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 16188b53bb2d17c9e1d5c07cbe3541b5acd099da9e57e0be582d863de8777cc2.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
16188b53bb2d17c9e1d5c07cbe3541b5acd099da9e57e0be582d863de8777cc2.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 16188b53bb2d17c9e1d5c07cbe3541b5acd099da9e57e0be582d863de8777cc2.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 49 IoCs
Processes:
svchost.exedescription ioc process 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\CacheSizeBytes = "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 = "4088" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.034554" 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\DownloadMonthlyRateFrBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132892887418521234" 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\UploadRatePct = "100" 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\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\DownloadMonthlyLanBytes = "0" 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\DownloadMonthlyCdnBytes = "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\DownloadMonthlyRateFrCnt = "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\Config\DODownloadMode = "1" 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\MemoryUsageKB = "4304" 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\DownloadMode_BackCompat = "1" 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\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 (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "3.684046" 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\LANConnectionCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.123559" 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\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\CDNConnectionCount = "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\UplinkBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\FrDownloadRatePct = "90" 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\SwarmCount = "1" 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\NormalDownloadCount = "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\DownloadMonthlyCacheHostBytes = "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 -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
16188b53bb2d17c9e1d5c07cbe3541b5acd099da9e57e0be582d863de8777cc2.exeTiWorker.exedescription pid process Token: SeIncBasePriorityPrivilege 924 16188b53bb2d17c9e1d5c07cbe3541b5acd099da9e57e0be582d863de8777cc2.exe Token: SeSecurityPrivilege 2972 TiWorker.exe Token: SeRestorePrivilege 2972 TiWorker.exe Token: SeBackupPrivilege 2972 TiWorker.exe Token: SeBackupPrivilege 2972 TiWorker.exe Token: SeRestorePrivilege 2972 TiWorker.exe Token: SeSecurityPrivilege 2972 TiWorker.exe Token: SeBackupPrivilege 2972 TiWorker.exe Token: SeRestorePrivilege 2972 TiWorker.exe Token: SeSecurityPrivilege 2972 TiWorker.exe Token: SeBackupPrivilege 2972 TiWorker.exe Token: SeRestorePrivilege 2972 TiWorker.exe Token: SeSecurityPrivilege 2972 TiWorker.exe Token: SeBackupPrivilege 2972 TiWorker.exe Token: SeRestorePrivilege 2972 TiWorker.exe Token: SeSecurityPrivilege 2972 TiWorker.exe Token: SeBackupPrivilege 2972 TiWorker.exe Token: SeRestorePrivilege 2972 TiWorker.exe Token: SeSecurityPrivilege 2972 TiWorker.exe Token: SeBackupPrivilege 2972 TiWorker.exe Token: SeRestorePrivilege 2972 TiWorker.exe Token: SeSecurityPrivilege 2972 TiWorker.exe Token: SeBackupPrivilege 2972 TiWorker.exe Token: SeRestorePrivilege 2972 TiWorker.exe Token: SeSecurityPrivilege 2972 TiWorker.exe Token: SeBackupPrivilege 2972 TiWorker.exe Token: SeRestorePrivilege 2972 TiWorker.exe Token: SeSecurityPrivilege 2972 TiWorker.exe Token: SeBackupPrivilege 2972 TiWorker.exe Token: SeRestorePrivilege 2972 TiWorker.exe Token: SeSecurityPrivilege 2972 TiWorker.exe Token: SeBackupPrivilege 2972 TiWorker.exe Token: SeRestorePrivilege 2972 TiWorker.exe Token: SeSecurityPrivilege 2972 TiWorker.exe Token: SeBackupPrivilege 2972 TiWorker.exe Token: SeRestorePrivilege 2972 TiWorker.exe Token: SeSecurityPrivilege 2972 TiWorker.exe Token: SeBackupPrivilege 2972 TiWorker.exe Token: SeRestorePrivilege 2972 TiWorker.exe Token: SeSecurityPrivilege 2972 TiWorker.exe Token: SeBackupPrivilege 2972 TiWorker.exe Token: SeRestorePrivilege 2972 TiWorker.exe Token: SeSecurityPrivilege 2972 TiWorker.exe Token: SeBackupPrivilege 2972 TiWorker.exe Token: SeRestorePrivilege 2972 TiWorker.exe Token: SeSecurityPrivilege 2972 TiWorker.exe Token: SeBackupPrivilege 2972 TiWorker.exe Token: SeRestorePrivilege 2972 TiWorker.exe Token: SeSecurityPrivilege 2972 TiWorker.exe Token: SeBackupPrivilege 2972 TiWorker.exe Token: SeRestorePrivilege 2972 TiWorker.exe Token: SeSecurityPrivilege 2972 TiWorker.exe Token: SeBackupPrivilege 2972 TiWorker.exe Token: SeRestorePrivilege 2972 TiWorker.exe Token: SeSecurityPrivilege 2972 TiWorker.exe Token: SeBackupPrivilege 2972 TiWorker.exe Token: SeRestorePrivilege 2972 TiWorker.exe Token: SeSecurityPrivilege 2972 TiWorker.exe Token: SeBackupPrivilege 2972 TiWorker.exe Token: SeRestorePrivilege 2972 TiWorker.exe Token: SeSecurityPrivilege 2972 TiWorker.exe Token: SeBackupPrivilege 2972 TiWorker.exe Token: SeRestorePrivilege 2972 TiWorker.exe Token: SeSecurityPrivilege 2972 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
16188b53bb2d17c9e1d5c07cbe3541b5acd099da9e57e0be582d863de8777cc2.execmd.exedescription pid process target process PID 924 wrote to memory of 684 924 16188b53bb2d17c9e1d5c07cbe3541b5acd099da9e57e0be582d863de8777cc2.exe MediaCenter.exe PID 924 wrote to memory of 684 924 16188b53bb2d17c9e1d5c07cbe3541b5acd099da9e57e0be582d863de8777cc2.exe MediaCenter.exe PID 924 wrote to memory of 684 924 16188b53bb2d17c9e1d5c07cbe3541b5acd099da9e57e0be582d863de8777cc2.exe MediaCenter.exe PID 924 wrote to memory of 2256 924 16188b53bb2d17c9e1d5c07cbe3541b5acd099da9e57e0be582d863de8777cc2.exe cmd.exe PID 924 wrote to memory of 2256 924 16188b53bb2d17c9e1d5c07cbe3541b5acd099da9e57e0be582d863de8777cc2.exe cmd.exe PID 924 wrote to memory of 2256 924 16188b53bb2d17c9e1d5c07cbe3541b5acd099da9e57e0be582d863de8777cc2.exe cmd.exe PID 2256 wrote to memory of 3084 2256 cmd.exe PING.EXE PID 2256 wrote to memory of 3084 2256 cmd.exe PING.EXE PID 2256 wrote to memory of 3084 2256 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\16188b53bb2d17c9e1d5c07cbe3541b5acd099da9e57e0be582d863de8777cc2.exe"C:\Users\Admin\AppData\Local\Temp\16188b53bb2d17c9e1d5c07cbe3541b5acd099da9e57e0be582d863de8777cc2.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:924 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:684 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\16188b53bb2d17c9e1d5c07cbe3541b5acd099da9e57e0be582d863de8777cc2.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:2256 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:3084
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:1948
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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:1800
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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:2972
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
94507321b4a54c58d7f7a3e0ab751146
SHA12c1a333ce410b5409051585214a83b06f7588d55
SHA25634e42413ab7ee28f25621dfafcd353d040f460704b0ff2e9e9b814bf2497ecc4
SHA512f7c5b1b663379882610acc4a0c9b1c2ac6cd086a56bb4cc854207964811ebd1668801bb95bd6f99d13cc33b214d4440acc634256932e00497bd012aa2f453d15
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MD5
94507321b4a54c58d7f7a3e0ab751146
SHA12c1a333ce410b5409051585214a83b06f7588d55
SHA25634e42413ab7ee28f25621dfafcd353d040f460704b0ff2e9e9b814bf2497ecc4
SHA512f7c5b1b663379882610acc4a0c9b1c2ac6cd086a56bb4cc854207964811ebd1668801bb95bd6f99d13cc33b214d4440acc634256932e00497bd012aa2f453d15