Analysis
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max time kernel
175s -
max time network
188s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 05:41
Static task
static1
Behavioral task
behavioral1
Sample
11fa9a7fa2ea0107804cfa0f4fdfccbc26717d216e3b05b1ba5de5398bfe4520.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
11fa9a7fa2ea0107804cfa0f4fdfccbc26717d216e3b05b1ba5de5398bfe4520.exe
Resource
win10v2004-en-20220112
General
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Target
11fa9a7fa2ea0107804cfa0f4fdfccbc26717d216e3b05b1ba5de5398bfe4520.exe
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Size
176KB
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MD5
a7099c7775e5355035f26adff3f2f2d8
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SHA1
63082c541419e0acc33d884aa8baa56abcc77ca8
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SHA256
11fa9a7fa2ea0107804cfa0f4fdfccbc26717d216e3b05b1ba5de5398bfe4520
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SHA512
d9d834a43de3a387778a84d42f54e68c7b85ce32985bfccc54250056709aeed7a16a489549dbd5f2326085ca72a0be30c31b51cdf514a075881fc2e47421bdb3
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/3432-132-0x0000000000400000-0x0000000000420000-memory.dmp family_sakula -
Executes dropped EXE 1 IoCs
Processes:
MediaCenter.exepid process 2168 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
11fa9a7fa2ea0107804cfa0f4fdfccbc26717d216e3b05b1ba5de5398bfe4520.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 11fa9a7fa2ea0107804cfa0f4fdfccbc26717d216e3b05b1ba5de5398bfe4520.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
11fa9a7fa2ea0107804cfa0f4fdfccbc26717d216e3b05b1ba5de5398bfe4520.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 11fa9a7fa2ea0107804cfa0f4fdfccbc26717d216e3b05b1ba5de5398bfe4520.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 4 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
MusNotifyIcon.exeMusNotifyIcon.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 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 50 IoCs
Processes:
svchost.exedescription ioc process 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\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\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 (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 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 (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.217014" 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 (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "1.980190" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4292" 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\CacheSizeBytes = "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\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\MemoryUsageKB = "4096" 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\DownloadMonthlyRateBkBps = "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\DownloadMonthlyCdnBytes = "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\Config\KVFileExpirationTime = "132892946208480342" 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 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\DownloadMonthlyInternetBytes = "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\DownloadMonthlyGroupBytes = "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\UploadCount = "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\Usage\MemoryUsageKB = "4300" 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\SwarmCount = "1" 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 = "2" 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\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 (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 = "0.000000" 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 -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
TiWorker.exe11fa9a7fa2ea0107804cfa0f4fdfccbc26717d216e3b05b1ba5de5398bfe4520.exedescription pid process Token: SeSecurityPrivilege 2188 TiWorker.exe Token: SeRestorePrivilege 2188 TiWorker.exe Token: SeBackupPrivilege 2188 TiWorker.exe Token: SeIncBasePriorityPrivilege 3432 11fa9a7fa2ea0107804cfa0f4fdfccbc26717d216e3b05b1ba5de5398bfe4520.exe Token: SeBackupPrivilege 2188 TiWorker.exe Token: SeRestorePrivilege 2188 TiWorker.exe Token: SeSecurityPrivilege 2188 TiWorker.exe Token: SeBackupPrivilege 2188 TiWorker.exe Token: SeRestorePrivilege 2188 TiWorker.exe Token: SeSecurityPrivilege 2188 TiWorker.exe Token: SeBackupPrivilege 2188 TiWorker.exe Token: SeRestorePrivilege 2188 TiWorker.exe Token: SeSecurityPrivilege 2188 TiWorker.exe Token: SeBackupPrivilege 2188 TiWorker.exe Token: SeRestorePrivilege 2188 TiWorker.exe Token: SeSecurityPrivilege 2188 TiWorker.exe Token: SeBackupPrivilege 2188 TiWorker.exe Token: SeRestorePrivilege 2188 TiWorker.exe Token: SeSecurityPrivilege 2188 TiWorker.exe Token: SeBackupPrivilege 2188 TiWorker.exe Token: SeRestorePrivilege 2188 TiWorker.exe Token: SeSecurityPrivilege 2188 TiWorker.exe Token: SeBackupPrivilege 2188 TiWorker.exe Token: SeRestorePrivilege 2188 TiWorker.exe Token: SeSecurityPrivilege 2188 TiWorker.exe Token: SeBackupPrivilege 2188 TiWorker.exe Token: SeRestorePrivilege 2188 TiWorker.exe Token: SeSecurityPrivilege 2188 TiWorker.exe Token: SeBackupPrivilege 2188 TiWorker.exe Token: SeRestorePrivilege 2188 TiWorker.exe Token: SeSecurityPrivilege 2188 TiWorker.exe Token: SeBackupPrivilege 2188 TiWorker.exe Token: SeRestorePrivilege 2188 TiWorker.exe Token: SeSecurityPrivilege 2188 TiWorker.exe Token: SeBackupPrivilege 2188 TiWorker.exe Token: SeRestorePrivilege 2188 TiWorker.exe Token: SeSecurityPrivilege 2188 TiWorker.exe Token: SeBackupPrivilege 2188 TiWorker.exe Token: SeRestorePrivilege 2188 TiWorker.exe Token: SeSecurityPrivilege 2188 TiWorker.exe Token: SeBackupPrivilege 2188 TiWorker.exe Token: SeRestorePrivilege 2188 TiWorker.exe Token: SeSecurityPrivilege 2188 TiWorker.exe Token: SeBackupPrivilege 2188 TiWorker.exe Token: SeRestorePrivilege 2188 TiWorker.exe Token: SeSecurityPrivilege 2188 TiWorker.exe Token: SeBackupPrivilege 2188 TiWorker.exe Token: SeRestorePrivilege 2188 TiWorker.exe Token: SeSecurityPrivilege 2188 TiWorker.exe Token: SeBackupPrivilege 2188 TiWorker.exe Token: SeRestorePrivilege 2188 TiWorker.exe Token: SeSecurityPrivilege 2188 TiWorker.exe Token: SeBackupPrivilege 2188 TiWorker.exe Token: SeRestorePrivilege 2188 TiWorker.exe Token: SeSecurityPrivilege 2188 TiWorker.exe Token: SeBackupPrivilege 2188 TiWorker.exe Token: SeRestorePrivilege 2188 TiWorker.exe Token: SeSecurityPrivilege 2188 TiWorker.exe Token: SeBackupPrivilege 2188 TiWorker.exe Token: SeRestorePrivilege 2188 TiWorker.exe Token: SeSecurityPrivilege 2188 TiWorker.exe Token: SeBackupPrivilege 2188 TiWorker.exe Token: SeRestorePrivilege 2188 TiWorker.exe Token: SeSecurityPrivilege 2188 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
11fa9a7fa2ea0107804cfa0f4fdfccbc26717d216e3b05b1ba5de5398bfe4520.execmd.exedescription pid process target process PID 3432 wrote to memory of 2168 3432 11fa9a7fa2ea0107804cfa0f4fdfccbc26717d216e3b05b1ba5de5398bfe4520.exe MediaCenter.exe PID 3432 wrote to memory of 2168 3432 11fa9a7fa2ea0107804cfa0f4fdfccbc26717d216e3b05b1ba5de5398bfe4520.exe MediaCenter.exe PID 3432 wrote to memory of 2168 3432 11fa9a7fa2ea0107804cfa0f4fdfccbc26717d216e3b05b1ba5de5398bfe4520.exe MediaCenter.exe PID 3432 wrote to memory of 1012 3432 11fa9a7fa2ea0107804cfa0f4fdfccbc26717d216e3b05b1ba5de5398bfe4520.exe cmd.exe PID 3432 wrote to memory of 1012 3432 11fa9a7fa2ea0107804cfa0f4fdfccbc26717d216e3b05b1ba5de5398bfe4520.exe cmd.exe PID 3432 wrote to memory of 1012 3432 11fa9a7fa2ea0107804cfa0f4fdfccbc26717d216e3b05b1ba5de5398bfe4520.exe cmd.exe PID 1012 wrote to memory of 3692 1012 cmd.exe PING.EXE PID 1012 wrote to memory of 3692 1012 cmd.exe PING.EXE PID 1012 wrote to memory of 3692 1012 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\11fa9a7fa2ea0107804cfa0f4fdfccbc26717d216e3b05b1ba5de5398bfe4520.exe"C:\Users\Admin\AppData\Local\Temp\11fa9a7fa2ea0107804cfa0f4fdfccbc26717d216e3b05b1ba5de5398bfe4520.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3432 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:2168 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\11fa9a7fa2ea0107804cfa0f4fdfccbc26717d216e3b05b1ba5de5398bfe4520.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:1012 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:3692
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:3044
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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:1392
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:3012
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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:2188
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
f165b275e78c03e25deecfb124b5cf13
SHA13bed3b6c6e9cb0ca8b87430ed1fbb715b72e3a1c
SHA256c51ec7c75459fddbba4284708063450d5a8c179a9fce6423a3db2f99cf2b50aa
SHA51231c1f7bfa93ca143da76be0aa0e82a3ea56c518dcda74018647a672e55b5505a97d491db2086e90a7d35626ed2490ba33ffaddea7e70ac19bc0e725f5dc56331
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MD5
f165b275e78c03e25deecfb124b5cf13
SHA13bed3b6c6e9cb0ca8b87430ed1fbb715b72e3a1c
SHA256c51ec7c75459fddbba4284708063450d5a8c179a9fce6423a3db2f99cf2b50aa
SHA51231c1f7bfa93ca143da76be0aa0e82a3ea56c518dcda74018647a672e55b5505a97d491db2086e90a7d35626ed2490ba33ffaddea7e70ac19bc0e725f5dc56331