Analysis
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max time kernel
161s -
max time network
170s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 04:18
Static task
static1
Behavioral task
behavioral1
Sample
158ed1bdf54a9d2033e6a719aff2fd5c41dc823092ac6becb2f2110d00ba00b1.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
158ed1bdf54a9d2033e6a719aff2fd5c41dc823092ac6becb2f2110d00ba00b1.exe
Resource
win10v2004-en-20220112
General
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Target
158ed1bdf54a9d2033e6a719aff2fd5c41dc823092ac6becb2f2110d00ba00b1.exe
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Size
216KB
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MD5
f4d2a53ba7a90efbe94497525892c6c2
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SHA1
cf39eebc04c07b69705fbc4bc5d75d3324e07ad7
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SHA256
158ed1bdf54a9d2033e6a719aff2fd5c41dc823092ac6becb2f2110d00ba00b1
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SHA512
7203dfce8a078a75526562f851e1347def5acff35973c9116fcf306b514905cbbe35bfa8d7a431018569cd5602cd0efabeeef22e5f6ef0fef43ad3ae6651abe8
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/3364-132-0x0000000000400000-0x0000000000420000-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 2536 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
158ed1bdf54a9d2033e6a719aff2fd5c41dc823092ac6becb2f2110d00ba00b1.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 158ed1bdf54a9d2033e6a719aff2fd5c41dc823092ac6becb2f2110d00ba00b1.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
158ed1bdf54a9d2033e6a719aff2fd5c41dc823092ac6becb2f2110d00ba00b1.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 158ed1bdf54a9d2033e6a719aff2fd5c41dc823092ac6becb2f2110d00ba00b1.exe -
Drops file in Windows directory 3 IoCs
Processes:
TiWorker.exesvchost.exedescription ioc process File opened for modification C:\Windows\Logs\CBS\CBS.log TiWorker.exe File opened for modification C:\Windows\WinSxS\pending.xml TiWorker.exe File opened for modification C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\DeliveryOptimization\State\keyValueLKG.dat svchost.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 49 IoCs
Processes:
svchost.exedescription ioc process 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\MonthID = "2" 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\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\DownloadMonthlyRateBkCnt = "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\UploadMonthlyInternetBytes = "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\DownlinkBps = "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\NormalDownloadCount = "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\Config\DODownloadMode = "1" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.026810" 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\LinkLocalConnectionCount = "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\BkDownloadRatePct = "45" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.043215" 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\Config\KVFileExpirationTime = "132892895854558058" 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\DownloadMonthlyCacheHostBytes = "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\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 (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "2.209900" 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\DownloadMonthlyInternetBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4196" 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\PriorityDownloadCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4144" 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\DownloadMonthlyRateFrCnt = "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\UplinkBps = "0" 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\UploadRatePct = "100" 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\DownloadMonthlyLinkLocalBytes = "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 (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\PeerInfoCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadPendingCount = "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\DownloadMonthlyRateBkBps = "0" svchost.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
158ed1bdf54a9d2033e6a719aff2fd5c41dc823092ac6becb2f2110d00ba00b1.exeTiWorker.exedescription pid process Token: SeIncBasePriorityPrivilege 3364 158ed1bdf54a9d2033e6a719aff2fd5c41dc823092ac6becb2f2110d00ba00b1.exe Token: SeSecurityPrivilege 3120 TiWorker.exe Token: SeRestorePrivilege 3120 TiWorker.exe Token: SeBackupPrivilege 3120 TiWorker.exe Token: SeBackupPrivilege 3120 TiWorker.exe Token: SeRestorePrivilege 3120 TiWorker.exe Token: SeSecurityPrivilege 3120 TiWorker.exe Token: SeBackupPrivilege 3120 TiWorker.exe Token: SeRestorePrivilege 3120 TiWorker.exe Token: SeSecurityPrivilege 3120 TiWorker.exe Token: SeBackupPrivilege 3120 TiWorker.exe Token: SeRestorePrivilege 3120 TiWorker.exe Token: SeSecurityPrivilege 3120 TiWorker.exe Token: SeBackupPrivilege 3120 TiWorker.exe Token: SeRestorePrivilege 3120 TiWorker.exe Token: SeSecurityPrivilege 3120 TiWorker.exe Token: SeBackupPrivilege 3120 TiWorker.exe Token: SeRestorePrivilege 3120 TiWorker.exe Token: SeSecurityPrivilege 3120 TiWorker.exe Token: SeBackupPrivilege 3120 TiWorker.exe Token: SeRestorePrivilege 3120 TiWorker.exe Token: SeSecurityPrivilege 3120 TiWorker.exe Token: SeBackupPrivilege 3120 TiWorker.exe Token: SeRestorePrivilege 3120 TiWorker.exe Token: SeSecurityPrivilege 3120 TiWorker.exe Token: SeBackupPrivilege 3120 TiWorker.exe Token: SeRestorePrivilege 3120 TiWorker.exe Token: SeSecurityPrivilege 3120 TiWorker.exe Token: SeBackupPrivilege 3120 TiWorker.exe Token: SeRestorePrivilege 3120 TiWorker.exe Token: SeSecurityPrivilege 3120 TiWorker.exe Token: SeBackupPrivilege 3120 TiWorker.exe Token: SeRestorePrivilege 3120 TiWorker.exe Token: SeSecurityPrivilege 3120 TiWorker.exe Token: SeBackupPrivilege 3120 TiWorker.exe Token: SeRestorePrivilege 3120 TiWorker.exe Token: SeSecurityPrivilege 3120 TiWorker.exe Token: SeBackupPrivilege 3120 TiWorker.exe Token: SeRestorePrivilege 3120 TiWorker.exe Token: SeSecurityPrivilege 3120 TiWorker.exe Token: SeBackupPrivilege 3120 TiWorker.exe Token: SeRestorePrivilege 3120 TiWorker.exe Token: SeSecurityPrivilege 3120 TiWorker.exe Token: SeBackupPrivilege 3120 TiWorker.exe Token: SeRestorePrivilege 3120 TiWorker.exe Token: SeSecurityPrivilege 3120 TiWorker.exe Token: SeBackupPrivilege 3120 TiWorker.exe Token: SeRestorePrivilege 3120 TiWorker.exe Token: SeSecurityPrivilege 3120 TiWorker.exe Token: SeBackupPrivilege 3120 TiWorker.exe Token: SeRestorePrivilege 3120 TiWorker.exe Token: SeSecurityPrivilege 3120 TiWorker.exe Token: SeBackupPrivilege 3120 TiWorker.exe Token: SeRestorePrivilege 3120 TiWorker.exe Token: SeSecurityPrivilege 3120 TiWorker.exe Token: SeBackupPrivilege 3120 TiWorker.exe Token: SeRestorePrivilege 3120 TiWorker.exe Token: SeSecurityPrivilege 3120 TiWorker.exe Token: SeBackupPrivilege 3120 TiWorker.exe Token: SeRestorePrivilege 3120 TiWorker.exe Token: SeSecurityPrivilege 3120 TiWorker.exe Token: SeBackupPrivilege 3120 TiWorker.exe Token: SeRestorePrivilege 3120 TiWorker.exe Token: SeSecurityPrivilege 3120 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
158ed1bdf54a9d2033e6a719aff2fd5c41dc823092ac6becb2f2110d00ba00b1.execmd.exedescription pid process target process PID 3364 wrote to memory of 2536 3364 158ed1bdf54a9d2033e6a719aff2fd5c41dc823092ac6becb2f2110d00ba00b1.exe MediaCenter.exe PID 3364 wrote to memory of 2536 3364 158ed1bdf54a9d2033e6a719aff2fd5c41dc823092ac6becb2f2110d00ba00b1.exe MediaCenter.exe PID 3364 wrote to memory of 2536 3364 158ed1bdf54a9d2033e6a719aff2fd5c41dc823092ac6becb2f2110d00ba00b1.exe MediaCenter.exe PID 3364 wrote to memory of 1004 3364 158ed1bdf54a9d2033e6a719aff2fd5c41dc823092ac6becb2f2110d00ba00b1.exe cmd.exe PID 3364 wrote to memory of 1004 3364 158ed1bdf54a9d2033e6a719aff2fd5c41dc823092ac6becb2f2110d00ba00b1.exe cmd.exe PID 3364 wrote to memory of 1004 3364 158ed1bdf54a9d2033e6a719aff2fd5c41dc823092ac6becb2f2110d00ba00b1.exe cmd.exe PID 1004 wrote to memory of 3744 1004 cmd.exe PING.EXE PID 1004 wrote to memory of 3744 1004 cmd.exe PING.EXE PID 1004 wrote to memory of 3744 1004 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\158ed1bdf54a9d2033e6a719aff2fd5c41dc823092ac6becb2f2110d00ba00b1.exe"C:\Users\Admin\AppData\Local\Temp\158ed1bdf54a9d2033e6a719aff2fd5c41dc823092ac6becb2f2110d00ba00b1.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3364 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:2536 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\158ed1bdf54a9d2033e6a719aff2fd5c41dc823092ac6becb2f2110d00ba00b1.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:1004 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:3744
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:3648
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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:1952
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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:3120
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
87c9b2eafeb592d1d46d5e9ae5419af9
SHA19bfd75fec3fb2e67d033c1f00df3f2e76d95289b
SHA2565bd787f332c3fa1714cec9d9fce8cb9721a8d206945b0dc3ea8db743c8c37d39
SHA512ec18b2e0e0168a1374aaef55f3ef35e517cc592c65ad226021b170c6fbc3a779c40fe6dad923a9afb09d22e09f52f785d29d2f0dc2d3987ec06d831c8c9872a3
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MD5
87c9b2eafeb592d1d46d5e9ae5419af9
SHA19bfd75fec3fb2e67d033c1f00df3f2e76d95289b
SHA2565bd787f332c3fa1714cec9d9fce8cb9721a8d206945b0dc3ea8db743c8c37d39
SHA512ec18b2e0e0168a1374aaef55f3ef35e517cc592c65ad226021b170c6fbc3a779c40fe6dad923a9afb09d22e09f52f785d29d2f0dc2d3987ec06d831c8c9872a3