Analysis
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max time kernel
183s -
max time network
195s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 05:36
Static task
static1
Behavioral task
behavioral1
Sample
1235f0d35686b31972ebb629be918bcb4f2178e3c896825dd65fc5d6325b15dc.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
1235f0d35686b31972ebb629be918bcb4f2178e3c896825dd65fc5d6325b15dc.exe
Resource
win10v2004-en-20220112
General
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Target
1235f0d35686b31972ebb629be918bcb4f2178e3c896825dd65fc5d6325b15dc.exe
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Size
92KB
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MD5
1bf526548688d71ac26e41d91d89f8c1
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SHA1
128b5b2fde6377c26a60da99e0a7bcb5ba8def60
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SHA256
1235f0d35686b31972ebb629be918bcb4f2178e3c896825dd65fc5d6325b15dc
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SHA512
c80d0b529a5dae39f913fa19892b6e9fb3073405704cb4d81326b3a8d8ba01ef040259fcd378b62ff69cc79a5c612c5c48cd0e422cf10c896af380ed5e81f8a2
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 -
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 3212 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
1235f0d35686b31972ebb629be918bcb4f2178e3c896825dd65fc5d6325b15dc.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 1235f0d35686b31972ebb629be918bcb4f2178e3c896825dd65fc5d6325b15dc.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
1235f0d35686b31972ebb629be918bcb4f2178e3c896825dd65fc5d6325b15dc.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 1235f0d35686b31972ebb629be918bcb4f2178e3c896825dd65fc5d6325b15dc.exe -
Drops file in Windows directory 3 IoCs
Processes:
TiWorker.exesvchost.exedescription ioc process 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 File opened for modification C:\Windows\Logs\CBS\CBS.log 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 52 IoCs
Processes:
svchost.exedescription ioc process 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\DownloadMonthlyCdnBytes = "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\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\MemoryUsageKB = "4196" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.040274" 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\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\DownlinkBps = "0" 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\Config\KVFileExpirationTime = "132892942793437399" 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\DownloadMonthlyGroupBytes = "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\PriorityDownloadCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4420" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.034793" 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\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\DownloadMonthlyLinkLocalBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrCnt = "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\LANConnectionCount = "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\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\MemoryUsageKB = "4316" 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\DownloadMonthlyRateFrBps = "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\MonthID = "2" 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\UplinkUsageBps = "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\UploadMonthlyLanBytes = "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\CacheSizeBytes = "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\CDNConnectionCount = "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\DownloadMonthlyRateBkBps = "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\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 = "4.954846" 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\DownloadMonthlyCacheHostBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadRatePct = "100" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.013684" svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage svchost.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
TiWorker.exe1235f0d35686b31972ebb629be918bcb4f2178e3c896825dd65fc5d6325b15dc.exedescription pid process Token: SeSecurityPrivilege 3580 TiWorker.exe Token: SeRestorePrivilege 3580 TiWorker.exe Token: SeBackupPrivilege 3580 TiWorker.exe Token: SeBackupPrivilege 3580 TiWorker.exe Token: SeRestorePrivilege 3580 TiWorker.exe Token: SeSecurityPrivilege 3580 TiWorker.exe Token: SeBackupPrivilege 3580 TiWorker.exe Token: SeRestorePrivilege 3580 TiWorker.exe Token: SeSecurityPrivilege 3580 TiWorker.exe Token: SeBackupPrivilege 3580 TiWorker.exe Token: SeRestorePrivilege 3580 TiWorker.exe Token: SeSecurityPrivilege 3580 TiWorker.exe Token: SeBackupPrivilege 3580 TiWorker.exe Token: SeRestorePrivilege 3580 TiWorker.exe Token: SeSecurityPrivilege 3580 TiWorker.exe Token: SeBackupPrivilege 3580 TiWorker.exe Token: SeRestorePrivilege 3580 TiWorker.exe Token: SeSecurityPrivilege 3580 TiWorker.exe Token: SeBackupPrivilege 3580 TiWorker.exe Token: SeRestorePrivilege 3580 TiWorker.exe Token: SeSecurityPrivilege 3580 TiWorker.exe Token: SeBackupPrivilege 3580 TiWorker.exe Token: SeRestorePrivilege 3580 TiWorker.exe Token: SeSecurityPrivilege 3580 TiWorker.exe Token: SeBackupPrivilege 3580 TiWorker.exe Token: SeRestorePrivilege 3580 TiWorker.exe Token: SeSecurityPrivilege 3580 TiWorker.exe Token: SeBackupPrivilege 3580 TiWorker.exe Token: SeRestorePrivilege 3580 TiWorker.exe Token: SeSecurityPrivilege 3580 TiWorker.exe Token: SeBackupPrivilege 3580 TiWorker.exe Token: SeRestorePrivilege 3580 TiWorker.exe Token: SeSecurityPrivilege 3580 TiWorker.exe Token: SeIncBasePriorityPrivilege 1268 1235f0d35686b31972ebb629be918bcb4f2178e3c896825dd65fc5d6325b15dc.exe Token: SeBackupPrivilege 3580 TiWorker.exe Token: SeRestorePrivilege 3580 TiWorker.exe Token: SeSecurityPrivilege 3580 TiWorker.exe Token: SeBackupPrivilege 3580 TiWorker.exe Token: SeRestorePrivilege 3580 TiWorker.exe Token: SeSecurityPrivilege 3580 TiWorker.exe Token: SeBackupPrivilege 3580 TiWorker.exe Token: SeRestorePrivilege 3580 TiWorker.exe Token: SeSecurityPrivilege 3580 TiWorker.exe Token: SeBackupPrivilege 3580 TiWorker.exe Token: SeRestorePrivilege 3580 TiWorker.exe Token: SeSecurityPrivilege 3580 TiWorker.exe Token: SeBackupPrivilege 3580 TiWorker.exe Token: SeRestorePrivilege 3580 TiWorker.exe Token: SeSecurityPrivilege 3580 TiWorker.exe Token: SeBackupPrivilege 3580 TiWorker.exe Token: SeRestorePrivilege 3580 TiWorker.exe Token: SeSecurityPrivilege 3580 TiWorker.exe Token: SeBackupPrivilege 3580 TiWorker.exe Token: SeRestorePrivilege 3580 TiWorker.exe Token: SeSecurityPrivilege 3580 TiWorker.exe Token: SeBackupPrivilege 3580 TiWorker.exe Token: SeRestorePrivilege 3580 TiWorker.exe Token: SeSecurityPrivilege 3580 TiWorker.exe Token: SeBackupPrivilege 3580 TiWorker.exe Token: SeRestorePrivilege 3580 TiWorker.exe Token: SeSecurityPrivilege 3580 TiWorker.exe Token: SeBackupPrivilege 3580 TiWorker.exe Token: SeRestorePrivilege 3580 TiWorker.exe Token: SeSecurityPrivilege 3580 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
1235f0d35686b31972ebb629be918bcb4f2178e3c896825dd65fc5d6325b15dc.execmd.exedescription pid process target process PID 1268 wrote to memory of 3212 1268 1235f0d35686b31972ebb629be918bcb4f2178e3c896825dd65fc5d6325b15dc.exe MediaCenter.exe PID 1268 wrote to memory of 3212 1268 1235f0d35686b31972ebb629be918bcb4f2178e3c896825dd65fc5d6325b15dc.exe MediaCenter.exe PID 1268 wrote to memory of 3212 1268 1235f0d35686b31972ebb629be918bcb4f2178e3c896825dd65fc5d6325b15dc.exe MediaCenter.exe PID 1268 wrote to memory of 2356 1268 1235f0d35686b31972ebb629be918bcb4f2178e3c896825dd65fc5d6325b15dc.exe cmd.exe PID 1268 wrote to memory of 2356 1268 1235f0d35686b31972ebb629be918bcb4f2178e3c896825dd65fc5d6325b15dc.exe cmd.exe PID 1268 wrote to memory of 2356 1268 1235f0d35686b31972ebb629be918bcb4f2178e3c896825dd65fc5d6325b15dc.exe cmd.exe PID 2356 wrote to memory of 2912 2356 cmd.exe PING.EXE PID 2356 wrote to memory of 2912 2356 cmd.exe PING.EXE PID 2356 wrote to memory of 2912 2356 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\1235f0d35686b31972ebb629be918bcb4f2178e3c896825dd65fc5d6325b15dc.exe"C:\Users\Admin\AppData\Local\Temp\1235f0d35686b31972ebb629be918bcb4f2178e3c896825dd65fc5d6325b15dc.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1268 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:3212 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\1235f0d35686b31972ebb629be918bcb4f2178e3c896825dd65fc5d6325b15dc.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:2356 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:2912
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:1920
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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:1360
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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:3580
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
eb86fdc47663c30e2923bec61daa4321
SHA1b93669de23f1c71b38c67c85b4619031b8a0697e
SHA25692bf1ac9a6771afc661921d277f214a220247580a381f7783d52b929bccceab6
SHA5121755021f9aaa1dc6f109f4b9df6821b45d9b8277750b910335e1b73d87cc48e99a1e152fe5346d6a43d4e055fe53fd9e6d6a16241b52e9417a3db1422478af76
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MD5
eb86fdc47663c30e2923bec61daa4321
SHA1b93669de23f1c71b38c67c85b4619031b8a0697e
SHA25692bf1ac9a6771afc661921d277f214a220247580a381f7783d52b929bccceab6
SHA5121755021f9aaa1dc6f109f4b9df6821b45d9b8277750b910335e1b73d87cc48e99a1e152fe5346d6a43d4e055fe53fd9e6d6a16241b52e9417a3db1422478af76