Analysis
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max time kernel
167s -
max time network
185s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 11:32
Static task
static1
Behavioral task
behavioral1
Sample
042a51bcc2d0726338129404a7a47abcf7b230a0c43df3b98288141007d14f04.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
042a51bcc2d0726338129404a7a47abcf7b230a0c43df3b98288141007d14f04.exe
Resource
win10v2004-en-20220112
General
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Target
042a51bcc2d0726338129404a7a47abcf7b230a0c43df3b98288141007d14f04.exe
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Size
36KB
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MD5
f8f2ad0a8b6c8a3ede5e32f30399d10f
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SHA1
3029478a37e94804189116bbb350d9c96e144292
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SHA256
042a51bcc2d0726338129404a7a47abcf7b230a0c43df3b98288141007d14f04
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SHA512
d46e3d8b12addd6953ed372ac944c644f681b3d9f9c76490114b04beeac54cd1ec7232dd26334e3a793161ebb8f99acc83062db0a97920efdff0c22f26ff519a
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
MediaCenter.exepid process 3260 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
042a51bcc2d0726338129404a7a47abcf7b230a0c43df3b98288141007d14f04.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 042a51bcc2d0726338129404a7a47abcf7b230a0c43df3b98288141007d14f04.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
042a51bcc2d0726338129404a7a47abcf7b230a0c43df3b98288141007d14f04.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 042a51bcc2d0726338129404a7a47abcf7b230a0c43df3b98288141007d14f04.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 54 IoCs
Processes:
svchost.exedescription ioc process 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\Config 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 = "4184" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4080" 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\DownloadMonthlyRateFrBps = "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\DownloadMonthlyRateBkCnt = "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\DownloadMonthlyCacheHostBytes = "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\LANConnectionCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "2.755928" 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\DownloadMonthlyRateFrCnt = "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\DownlinkUsageBps = "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 = "0.053121" 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\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\Config\DownloadMode_BackCompat = "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\DownloadMonthlyCdnBytes = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.216762" 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\DownloadMonthlyRateBkCnt = "4" 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\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\SwarmCount = "1" 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\DownloadMonthlyRateBkBps = "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\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\UploadCount = "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\UploadRatePct = "100" 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\DownloadMonthlyRateBkBps = "1157726" 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\NormalDownloadCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4188" 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\DownloadMonthlyLinkLocalBytes = "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\LinkLocalConnectionCount = "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\Config\KVFileExpirationTime = "132893156176660128" 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 -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
TiWorker.exe042a51bcc2d0726338129404a7a47abcf7b230a0c43df3b98288141007d14f04.exedescription pid process Token: SeSecurityPrivilege 1240 TiWorker.exe Token: SeRestorePrivilege 1240 TiWorker.exe Token: SeBackupPrivilege 1240 TiWorker.exe Token: SeIncBasePriorityPrivilege 3612 042a51bcc2d0726338129404a7a47abcf7b230a0c43df3b98288141007d14f04.exe Token: SeBackupPrivilege 1240 TiWorker.exe Token: SeRestorePrivilege 1240 TiWorker.exe Token: SeSecurityPrivilege 1240 TiWorker.exe Token: SeBackupPrivilege 1240 TiWorker.exe Token: SeRestorePrivilege 1240 TiWorker.exe Token: SeSecurityPrivilege 1240 TiWorker.exe Token: SeBackupPrivilege 1240 TiWorker.exe Token: SeRestorePrivilege 1240 TiWorker.exe Token: SeSecurityPrivilege 1240 TiWorker.exe Token: SeBackupPrivilege 1240 TiWorker.exe Token: SeRestorePrivilege 1240 TiWorker.exe Token: SeSecurityPrivilege 1240 TiWorker.exe Token: SeBackupPrivilege 1240 TiWorker.exe Token: SeRestorePrivilege 1240 TiWorker.exe Token: SeSecurityPrivilege 1240 TiWorker.exe Token: SeBackupPrivilege 1240 TiWorker.exe Token: SeRestorePrivilege 1240 TiWorker.exe Token: SeSecurityPrivilege 1240 TiWorker.exe Token: SeBackupPrivilege 1240 TiWorker.exe Token: SeRestorePrivilege 1240 TiWorker.exe Token: SeSecurityPrivilege 1240 TiWorker.exe Token: SeBackupPrivilege 1240 TiWorker.exe Token: SeRestorePrivilege 1240 TiWorker.exe Token: SeSecurityPrivilege 1240 TiWorker.exe Token: SeBackupPrivilege 1240 TiWorker.exe Token: SeRestorePrivilege 1240 TiWorker.exe Token: SeSecurityPrivilege 1240 TiWorker.exe Token: SeBackupPrivilege 1240 TiWorker.exe Token: SeRestorePrivilege 1240 TiWorker.exe Token: SeSecurityPrivilege 1240 TiWorker.exe Token: SeBackupPrivilege 1240 TiWorker.exe Token: SeRestorePrivilege 1240 TiWorker.exe Token: SeSecurityPrivilege 1240 TiWorker.exe Token: SeBackupPrivilege 1240 TiWorker.exe Token: SeRestorePrivilege 1240 TiWorker.exe Token: SeSecurityPrivilege 1240 TiWorker.exe Token: SeBackupPrivilege 1240 TiWorker.exe Token: SeRestorePrivilege 1240 TiWorker.exe Token: SeSecurityPrivilege 1240 TiWorker.exe Token: SeBackupPrivilege 1240 TiWorker.exe Token: SeRestorePrivilege 1240 TiWorker.exe Token: SeSecurityPrivilege 1240 TiWorker.exe Token: SeBackupPrivilege 1240 TiWorker.exe Token: SeRestorePrivilege 1240 TiWorker.exe Token: SeSecurityPrivilege 1240 TiWorker.exe Token: SeBackupPrivilege 1240 TiWorker.exe Token: SeRestorePrivilege 1240 TiWorker.exe Token: SeSecurityPrivilege 1240 TiWorker.exe Token: SeBackupPrivilege 1240 TiWorker.exe Token: SeRestorePrivilege 1240 TiWorker.exe Token: SeSecurityPrivilege 1240 TiWorker.exe Token: SeBackupPrivilege 1240 TiWorker.exe Token: SeRestorePrivilege 1240 TiWorker.exe Token: SeSecurityPrivilege 1240 TiWorker.exe Token: SeBackupPrivilege 1240 TiWorker.exe Token: SeRestorePrivilege 1240 TiWorker.exe Token: SeSecurityPrivilege 1240 TiWorker.exe Token: SeBackupPrivilege 1240 TiWorker.exe Token: SeRestorePrivilege 1240 TiWorker.exe Token: SeSecurityPrivilege 1240 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
042a51bcc2d0726338129404a7a47abcf7b230a0c43df3b98288141007d14f04.execmd.exedescription pid process target process PID 3612 wrote to memory of 3260 3612 042a51bcc2d0726338129404a7a47abcf7b230a0c43df3b98288141007d14f04.exe MediaCenter.exe PID 3612 wrote to memory of 3260 3612 042a51bcc2d0726338129404a7a47abcf7b230a0c43df3b98288141007d14f04.exe MediaCenter.exe PID 3612 wrote to memory of 3260 3612 042a51bcc2d0726338129404a7a47abcf7b230a0c43df3b98288141007d14f04.exe MediaCenter.exe PID 3612 wrote to memory of 2380 3612 042a51bcc2d0726338129404a7a47abcf7b230a0c43df3b98288141007d14f04.exe cmd.exe PID 3612 wrote to memory of 2380 3612 042a51bcc2d0726338129404a7a47abcf7b230a0c43df3b98288141007d14f04.exe cmd.exe PID 3612 wrote to memory of 2380 3612 042a51bcc2d0726338129404a7a47abcf7b230a0c43df3b98288141007d14f04.exe cmd.exe PID 2380 wrote to memory of 3940 2380 cmd.exe PING.EXE PID 2380 wrote to memory of 3940 2380 cmd.exe PING.EXE PID 2380 wrote to memory of 3940 2380 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\042a51bcc2d0726338129404a7a47abcf7b230a0c43df3b98288141007d14f04.exe"C:\Users\Admin\AppData\Local\Temp\042a51bcc2d0726338129404a7a47abcf7b230a0c43df3b98288141007d14f04.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3612 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:3260 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\042a51bcc2d0726338129404a7a47abcf7b230a0c43df3b98288141007d14f04.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:2380 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:3940
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:3556
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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:2612
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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:1240
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
2840fc912a200dff09759aa508fcbbbf
SHA14e86e4fbfaabb85e8a782c8b800f960b19a333dc
SHA2566a8acd31a24c0761bc01318d0cadfceba82aa677839eab919fc0aa2e45ed5d3b
SHA5129b8a2b9ac5dc018ed85a5c3d508799847b0dc16ef81fe8c87f4d61f7e8ee6c29401b7acb9efbc19b52984195eb3616bde6edb8f1479cd25277bebca16f82c464
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C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeMD5
2840fc912a200dff09759aa508fcbbbf
SHA14e86e4fbfaabb85e8a782c8b800f960b19a333dc
SHA2566a8acd31a24c0761bc01318d0cadfceba82aa677839eab919fc0aa2e45ed5d3b
SHA5129b8a2b9ac5dc018ed85a5c3d508799847b0dc16ef81fe8c87f4d61f7e8ee6c29401b7acb9efbc19b52984195eb3616bde6edb8f1479cd25277bebca16f82c464