Analysis
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max time kernel
165s -
max time network
181s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 06:13
Static task
static1
Behavioral task
behavioral1
Sample
1091d02d44cd88f2ac55fdad18b54f742157c3c79d1898fa40c15e8ff56b7a77.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
1091d02d44cd88f2ac55fdad18b54f742157c3c79d1898fa40c15e8ff56b7a77.exe
Resource
win10v2004-en-20220112
General
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Target
1091d02d44cd88f2ac55fdad18b54f742157c3c79d1898fa40c15e8ff56b7a77.exe
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Size
176KB
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MD5
893ccab9662414e2d60e7ca698b51caf
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SHA1
3765a5f512f4e4e3a61d4f911c193e0a4a6ddfaa
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SHA256
1091d02d44cd88f2ac55fdad18b54f742157c3c79d1898fa40c15e8ff56b7a77
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SHA512
c4834e4098deb978546a6a2f35cb3399bf99228f2346980780a0cea5e8c56c0b5b7e5d19d989dea461d1de373211f60d8685a1bdcab47bf6746021fdf4a0b173
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/1600-132-0x0000000000400000-0x0000000000420000-memory.dmp family_sakula behavioral2/memory/3284-133-0x0000000000400000-0x0000000000420000-memory.dmp family_sakula -
Executes dropped EXE 1 IoCs
Processes:
MediaCenter.exepid process 3284 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
1091d02d44cd88f2ac55fdad18b54f742157c3c79d1898fa40c15e8ff56b7a77.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 1091d02d44cd88f2ac55fdad18b54f742157c3c79d1898fa40c15e8ff56b7a77.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
1091d02d44cd88f2ac55fdad18b54f742157c3c79d1898fa40c15e8ff56b7a77.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 1091d02d44cd88f2ac55fdad18b54f742157c3c79d1898fa40c15e8ff56b7a77.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 50 IoCs
Processes:
svchost.exedescription ioc process 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\CDNConnectionCount = "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 = "0.061387" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132892965326434776" 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\DownloadMonthlyRateFrCnt = "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\CacheSizeBytes = "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\DownloadMonthlyInternetBytes = "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\DownlinkBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.208045" 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\DownloadMonthlyLanBytes = "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\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\PriorityDownloadCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.632884" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4312" 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\LANConnectionCount = "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\UploadRatePct = "100" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4092" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCdnBytes = "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\DownloadMonthlyGroupBytes = "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\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\UploadMonthlyInternetBytes = "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\DownloadMonthlyRateBkBps = "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\SwarmCount = "1" 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\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\BkDownloadRatePct = "45" 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\MemoryUsageKB = "4296" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkUsageBps = "0" 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\PriorityDownloadPendingCount = "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 svchost.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
1091d02d44cd88f2ac55fdad18b54f742157c3c79d1898fa40c15e8ff56b7a77.exeTiWorker.exedescription pid process Token: SeIncBasePriorityPrivilege 1600 1091d02d44cd88f2ac55fdad18b54f742157c3c79d1898fa40c15e8ff56b7a77.exe Token: SeSecurityPrivilege 2572 TiWorker.exe Token: SeRestorePrivilege 2572 TiWorker.exe Token: SeBackupPrivilege 2572 TiWorker.exe Token: SeBackupPrivilege 2572 TiWorker.exe Token: SeRestorePrivilege 2572 TiWorker.exe Token: SeSecurityPrivilege 2572 TiWorker.exe Token: SeBackupPrivilege 2572 TiWorker.exe Token: SeRestorePrivilege 2572 TiWorker.exe Token: SeSecurityPrivilege 2572 TiWorker.exe Token: SeBackupPrivilege 2572 TiWorker.exe Token: SeRestorePrivilege 2572 TiWorker.exe Token: SeSecurityPrivilege 2572 TiWorker.exe Token: SeBackupPrivilege 2572 TiWorker.exe Token: SeRestorePrivilege 2572 TiWorker.exe Token: SeSecurityPrivilege 2572 TiWorker.exe Token: SeBackupPrivilege 2572 TiWorker.exe Token: SeRestorePrivilege 2572 TiWorker.exe Token: SeSecurityPrivilege 2572 TiWorker.exe Token: SeBackupPrivilege 2572 TiWorker.exe Token: SeRestorePrivilege 2572 TiWorker.exe Token: SeSecurityPrivilege 2572 TiWorker.exe Token: SeBackupPrivilege 2572 TiWorker.exe Token: SeRestorePrivilege 2572 TiWorker.exe Token: SeSecurityPrivilege 2572 TiWorker.exe Token: SeBackupPrivilege 2572 TiWorker.exe Token: SeRestorePrivilege 2572 TiWorker.exe Token: SeSecurityPrivilege 2572 TiWorker.exe Token: SeBackupPrivilege 2572 TiWorker.exe Token: SeRestorePrivilege 2572 TiWorker.exe Token: SeSecurityPrivilege 2572 TiWorker.exe Token: SeBackupPrivilege 2572 TiWorker.exe Token: SeRestorePrivilege 2572 TiWorker.exe Token: SeSecurityPrivilege 2572 TiWorker.exe Token: SeBackupPrivilege 2572 TiWorker.exe Token: SeRestorePrivilege 2572 TiWorker.exe Token: SeSecurityPrivilege 2572 TiWorker.exe Token: SeBackupPrivilege 2572 TiWorker.exe Token: SeRestorePrivilege 2572 TiWorker.exe Token: SeSecurityPrivilege 2572 TiWorker.exe Token: SeBackupPrivilege 2572 TiWorker.exe Token: SeRestorePrivilege 2572 TiWorker.exe Token: SeSecurityPrivilege 2572 TiWorker.exe Token: SeBackupPrivilege 2572 TiWorker.exe Token: SeRestorePrivilege 2572 TiWorker.exe Token: SeSecurityPrivilege 2572 TiWorker.exe Token: SeBackupPrivilege 2572 TiWorker.exe Token: SeRestorePrivilege 2572 TiWorker.exe Token: SeSecurityPrivilege 2572 TiWorker.exe Token: SeBackupPrivilege 2572 TiWorker.exe Token: SeRestorePrivilege 2572 TiWorker.exe Token: SeSecurityPrivilege 2572 TiWorker.exe Token: SeBackupPrivilege 2572 TiWorker.exe Token: SeRestorePrivilege 2572 TiWorker.exe Token: SeSecurityPrivilege 2572 TiWorker.exe Token: SeBackupPrivilege 2572 TiWorker.exe Token: SeRestorePrivilege 2572 TiWorker.exe Token: SeSecurityPrivilege 2572 TiWorker.exe Token: SeBackupPrivilege 2572 TiWorker.exe Token: SeRestorePrivilege 2572 TiWorker.exe Token: SeSecurityPrivilege 2572 TiWorker.exe Token: SeBackupPrivilege 2572 TiWorker.exe Token: SeRestorePrivilege 2572 TiWorker.exe Token: SeSecurityPrivilege 2572 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
1091d02d44cd88f2ac55fdad18b54f742157c3c79d1898fa40c15e8ff56b7a77.execmd.exedescription pid process target process PID 1600 wrote to memory of 3284 1600 1091d02d44cd88f2ac55fdad18b54f742157c3c79d1898fa40c15e8ff56b7a77.exe MediaCenter.exe PID 1600 wrote to memory of 3284 1600 1091d02d44cd88f2ac55fdad18b54f742157c3c79d1898fa40c15e8ff56b7a77.exe MediaCenter.exe PID 1600 wrote to memory of 3284 1600 1091d02d44cd88f2ac55fdad18b54f742157c3c79d1898fa40c15e8ff56b7a77.exe MediaCenter.exe PID 1600 wrote to memory of 1896 1600 1091d02d44cd88f2ac55fdad18b54f742157c3c79d1898fa40c15e8ff56b7a77.exe cmd.exe PID 1600 wrote to memory of 1896 1600 1091d02d44cd88f2ac55fdad18b54f742157c3c79d1898fa40c15e8ff56b7a77.exe cmd.exe PID 1600 wrote to memory of 1896 1600 1091d02d44cd88f2ac55fdad18b54f742157c3c79d1898fa40c15e8ff56b7a77.exe cmd.exe PID 1896 wrote to memory of 3004 1896 cmd.exe PING.EXE PID 1896 wrote to memory of 3004 1896 cmd.exe PING.EXE PID 1896 wrote to memory of 3004 1896 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\1091d02d44cd88f2ac55fdad18b54f742157c3c79d1898fa40c15e8ff56b7a77.exe"C:\Users\Admin\AppData\Local\Temp\1091d02d44cd88f2ac55fdad18b54f742157c3c79d1898fa40c15e8ff56b7a77.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1600 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:3284 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\1091d02d44cd88f2ac55fdad18b54f742157c3c79d1898fa40c15e8ff56b7a77.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:1896 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:3004
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:3300
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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:1500
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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:2572
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
358d697a90b2f55496d4c92095cf44e3
SHA14ed88ca4840aaac956150bfcc4ad9871902e0885
SHA2567f0c0ad4286e4aa7754b2dcc9149456c5d40a53b46442df2335742a6c2a232f1
SHA51289f37c0d9275c7c5f420352f3395074dad8087816c376b2c99840f7206dbfe0961c356f034ff3782882b1714bb77aadd0d22e228cc5763f4c2b3d8bc560059b4
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MD5
358d697a90b2f55496d4c92095cf44e3
SHA14ed88ca4840aaac956150bfcc4ad9871902e0885
SHA2567f0c0ad4286e4aa7754b2dcc9149456c5d40a53b46442df2335742a6c2a232f1
SHA51289f37c0d9275c7c5f420352f3395074dad8087816c376b2c99840f7206dbfe0961c356f034ff3782882b1714bb77aadd0d22e228cc5763f4c2b3d8bc560059b4