Analysis
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max time kernel
160s -
max time network
167s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 10:03
Static task
static1
Behavioral task
behavioral1
Sample
08405fa0db20078eccf4202b0ae95a4b538b69177a38ca9d3922f41e4722a6d0.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
08405fa0db20078eccf4202b0ae95a4b538b69177a38ca9d3922f41e4722a6d0.exe
Resource
win10v2004-en-20220112
General
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Target
08405fa0db20078eccf4202b0ae95a4b538b69177a38ca9d3922f41e4722a6d0.exe
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Size
150KB
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MD5
40e119f6764b8a2da25735cf74e939b8
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SHA1
9b6b8f75070654a4ba879dcc81ffcd62c91bf499
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SHA256
08405fa0db20078eccf4202b0ae95a4b538b69177a38ca9d3922f41e4722a6d0
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SHA512
1efd5191ee7d4e2e7438c4453af9b5457b5b8b80ae4526c634bb9148a47e6ba9ff30d72ac50deb5440cfe509c7862e5678b703ba2887330e5f5f6d926ff18446
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 2184 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
08405fa0db20078eccf4202b0ae95a4b538b69177a38ca9d3922f41e4722a6d0.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 08405fa0db20078eccf4202b0ae95a4b538b69177a38ca9d3922f41e4722a6d0.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
08405fa0db20078eccf4202b0ae95a4b538b69177a38ca9d3922f41e4722a6d0.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 08405fa0db20078eccf4202b0ae95a4b538b69177a38ca9d3922f41e4722a6d0.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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz MusNotifyIcon.exe Key opened \Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0 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\NormalDownloadPendingCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4180" 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\MonthID = "2" 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\PriorityDownloadPendingCount = "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\UploadMonthlyInternetBytes = "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\GroupConnectionCount = "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\Config\KVFileExpirationTime = "132893111041070102" 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\CDNConnectionCount = "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\UploadMonthlyLanBytes = "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\Usage\CPUpct = "1.408479" 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\NormalDownloadCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4284" 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\DownloadMonthlyRateFrBps = "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\UplinkBps = "0" 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\MemoryUsageKB = "3896" 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\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\DownlinkUsageBps = "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\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 (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.010060" 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\BkDownloadRatePct = "45" 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 = "0.208254" 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\DownloadMonthlyInternetBytes = "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\SwarmCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "24.997640" 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\DownloadMonthlyRateBkCnt = "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 (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 -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
TiWorker.exe08405fa0db20078eccf4202b0ae95a4b538b69177a38ca9d3922f41e4722a6d0.exedescription pid process Token: SeSecurityPrivilege 520 TiWorker.exe Token: SeRestorePrivilege 520 TiWorker.exe Token: SeBackupPrivilege 520 TiWorker.exe Token: SeBackupPrivilege 520 TiWorker.exe Token: SeRestorePrivilege 520 TiWorker.exe Token: SeSecurityPrivilege 520 TiWorker.exe Token: SeBackupPrivilege 520 TiWorker.exe Token: SeRestorePrivilege 520 TiWorker.exe Token: SeSecurityPrivilege 520 TiWorker.exe Token: SeBackupPrivilege 520 TiWorker.exe Token: SeRestorePrivilege 520 TiWorker.exe Token: SeSecurityPrivilege 520 TiWorker.exe Token: SeBackupPrivilege 520 TiWorker.exe Token: SeRestorePrivilege 520 TiWorker.exe Token: SeSecurityPrivilege 520 TiWorker.exe Token: SeBackupPrivilege 520 TiWorker.exe Token: SeRestorePrivilege 520 TiWorker.exe Token: SeSecurityPrivilege 520 TiWorker.exe Token: SeBackupPrivilege 520 TiWorker.exe Token: SeRestorePrivilege 520 TiWorker.exe Token: SeSecurityPrivilege 520 TiWorker.exe Token: SeBackupPrivilege 520 TiWorker.exe Token: SeRestorePrivilege 520 TiWorker.exe Token: SeSecurityPrivilege 520 TiWorker.exe Token: SeBackupPrivilege 520 TiWorker.exe Token: SeRestorePrivilege 520 TiWorker.exe Token: SeSecurityPrivilege 520 TiWorker.exe Token: SeBackupPrivilege 520 TiWorker.exe Token: SeRestorePrivilege 520 TiWorker.exe Token: SeSecurityPrivilege 520 TiWorker.exe Token: SeBackupPrivilege 520 TiWorker.exe Token: SeRestorePrivilege 520 TiWorker.exe Token: SeSecurityPrivilege 520 TiWorker.exe Token: SeIncBasePriorityPrivilege 1576 08405fa0db20078eccf4202b0ae95a4b538b69177a38ca9d3922f41e4722a6d0.exe Token: SeBackupPrivilege 520 TiWorker.exe Token: SeRestorePrivilege 520 TiWorker.exe Token: SeSecurityPrivilege 520 TiWorker.exe Token: SeBackupPrivilege 520 TiWorker.exe Token: SeRestorePrivilege 520 TiWorker.exe Token: SeSecurityPrivilege 520 TiWorker.exe Token: SeBackupPrivilege 520 TiWorker.exe Token: SeRestorePrivilege 520 TiWorker.exe Token: SeSecurityPrivilege 520 TiWorker.exe Token: SeBackupPrivilege 520 TiWorker.exe Token: SeRestorePrivilege 520 TiWorker.exe Token: SeSecurityPrivilege 520 TiWorker.exe Token: SeBackupPrivilege 520 TiWorker.exe Token: SeRestorePrivilege 520 TiWorker.exe Token: SeSecurityPrivilege 520 TiWorker.exe Token: SeBackupPrivilege 520 TiWorker.exe Token: SeRestorePrivilege 520 TiWorker.exe Token: SeSecurityPrivilege 520 TiWorker.exe Token: SeBackupPrivilege 520 TiWorker.exe Token: SeRestorePrivilege 520 TiWorker.exe Token: SeSecurityPrivilege 520 TiWorker.exe Token: SeBackupPrivilege 520 TiWorker.exe Token: SeRestorePrivilege 520 TiWorker.exe Token: SeSecurityPrivilege 520 TiWorker.exe Token: SeBackupPrivilege 520 TiWorker.exe Token: SeRestorePrivilege 520 TiWorker.exe Token: SeSecurityPrivilege 520 TiWorker.exe Token: SeBackupPrivilege 520 TiWorker.exe Token: SeRestorePrivilege 520 TiWorker.exe Token: SeSecurityPrivilege 520 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
08405fa0db20078eccf4202b0ae95a4b538b69177a38ca9d3922f41e4722a6d0.execmd.exedescription pid process target process PID 1576 wrote to memory of 2184 1576 08405fa0db20078eccf4202b0ae95a4b538b69177a38ca9d3922f41e4722a6d0.exe MediaCenter.exe PID 1576 wrote to memory of 2184 1576 08405fa0db20078eccf4202b0ae95a4b538b69177a38ca9d3922f41e4722a6d0.exe MediaCenter.exe PID 1576 wrote to memory of 2184 1576 08405fa0db20078eccf4202b0ae95a4b538b69177a38ca9d3922f41e4722a6d0.exe MediaCenter.exe PID 1576 wrote to memory of 740 1576 08405fa0db20078eccf4202b0ae95a4b538b69177a38ca9d3922f41e4722a6d0.exe cmd.exe PID 1576 wrote to memory of 740 1576 08405fa0db20078eccf4202b0ae95a4b538b69177a38ca9d3922f41e4722a6d0.exe cmd.exe PID 1576 wrote to memory of 740 1576 08405fa0db20078eccf4202b0ae95a4b538b69177a38ca9d3922f41e4722a6d0.exe cmd.exe PID 740 wrote to memory of 3096 740 cmd.exe PING.EXE PID 740 wrote to memory of 3096 740 cmd.exe PING.EXE PID 740 wrote to memory of 3096 740 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\08405fa0db20078eccf4202b0ae95a4b538b69177a38ca9d3922f41e4722a6d0.exe"C:\Users\Admin\AppData\Local\Temp\08405fa0db20078eccf4202b0ae95a4b538b69177a38ca9d3922f41e4722a6d0.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1576 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:2184 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\08405fa0db20078eccf4202b0ae95a4b538b69177a38ca9d3922f41e4722a6d0.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:740 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:3096
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:1988
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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:1652
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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:520
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
1c78ebeb232d1dbf3e0555f88be3ff0f
SHA1c17bf2deec1342792def35ae7369cda48b3621e8
SHA25615e62e52a99fed2f19ce33ee83b8b255fb1dd4797b69c46cd18e30e0214f3ab1
SHA512fc694fbff3e864e600b60194ca4fc4560b7eb782e691b01794f9adf8d2259c3dd22f26d84817446fff7c4c8db0b03d639957721418574c4ce03c27feefddebf8
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C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeMD5
1c78ebeb232d1dbf3e0555f88be3ff0f
SHA1c17bf2deec1342792def35ae7369cda48b3621e8
SHA25615e62e52a99fed2f19ce33ee83b8b255fb1dd4797b69c46cd18e30e0214f3ab1
SHA512fc694fbff3e864e600b60194ca4fc4560b7eb782e691b01794f9adf8d2259c3dd22f26d84817446fff7c4c8db0b03d639957721418574c4ce03c27feefddebf8