Analysis
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max time kernel
160s -
max time network
169s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 10:56
Static task
static1
Behavioral task
behavioral1
Sample
05b80fd98e21fd1e6486848a1ef438cce3f7218385f4fde4f9ef2d1565bf4d26.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
05b80fd98e21fd1e6486848a1ef438cce3f7218385f4fde4f9ef2d1565bf4d26.exe
Resource
win10v2004-en-20220112
General
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Target
05b80fd98e21fd1e6486848a1ef438cce3f7218385f4fde4f9ef2d1565bf4d26.exe
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Size
216KB
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MD5
2e015774e2397b36cddca18a43ce3943
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SHA1
c968759cf5ba067216cb3b76e1804815407ce948
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SHA256
05b80fd98e21fd1e6486848a1ef438cce3f7218385f4fde4f9ef2d1565bf4d26
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SHA512
d1d992f078e03965df3c9102054ab9f82d09bfae210ae422abac0460b008fd34ffe6970433348480e30ab6eea0d1348da49c0355989364479ed52a3c49a61889
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/1224-132-0x0000000000400000-0x0000000000420000-memory.dmp family_sakula behavioral2/memory/980-133-0x0000000000400000-0x0000000000420000-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 980 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
05b80fd98e21fd1e6486848a1ef438cce3f7218385f4fde4f9ef2d1565bf4d26.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 05b80fd98e21fd1e6486848a1ef438cce3f7218385f4fde4f9ef2d1565bf4d26.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
05b80fd98e21fd1e6486848a1ef438cce3f7218385f4fde4f9ef2d1565bf4d26.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 05b80fd98e21fd1e6486848a1ef438cce3f7218385f4fde4f9ef2d1565bf4d26.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 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 51 IoCs
Processes:
svchost.exedescription ioc process Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4108" 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 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\LinkLocalConnectionCount = "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\NormalDownloadCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4244" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "3940" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadRatePct = "100" 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\DownloadMonthlyLinkLocalBytes = "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\DownlinkUsageBps = "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\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\PriorityDownloadCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.000000" 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\UploadMonthlyInternetBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132893145190656525" 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\MonthlyUploadRestriction = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "5.555486" 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 svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DODownloadMode = "1" 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\DownloadMonthlyCacheHostBytes = "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\SwarmCount = "1" 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\FrDownloadRatePct = "90" 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 = "0.044863" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.018539" 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\DownloadMonthlyCdnBytes = "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\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\Config\DownloadMode_BackCompat = "1" 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\NormalDownloadPendingCount = "0" svchost.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
TiWorker.exe05b80fd98e21fd1e6486848a1ef438cce3f7218385f4fde4f9ef2d1565bf4d26.exedescription pid process Token: SeSecurityPrivilege 3180 TiWorker.exe Token: SeRestorePrivilege 3180 TiWorker.exe Token: SeBackupPrivilege 3180 TiWorker.exe Token: SeBackupPrivilege 3180 TiWorker.exe Token: SeRestorePrivilege 3180 TiWorker.exe Token: SeSecurityPrivilege 3180 TiWorker.exe Token: SeBackupPrivilege 3180 TiWorker.exe Token: SeRestorePrivilege 3180 TiWorker.exe Token: SeSecurityPrivilege 3180 TiWorker.exe Token: SeBackupPrivilege 3180 TiWorker.exe Token: SeRestorePrivilege 3180 TiWorker.exe Token: SeSecurityPrivilege 3180 TiWorker.exe Token: SeBackupPrivilege 3180 TiWorker.exe Token: SeRestorePrivilege 3180 TiWorker.exe Token: SeSecurityPrivilege 3180 TiWorker.exe Token: SeBackupPrivilege 3180 TiWorker.exe Token: SeRestorePrivilege 3180 TiWorker.exe Token: SeSecurityPrivilege 3180 TiWorker.exe Token: SeBackupPrivilege 3180 TiWorker.exe Token: SeRestorePrivilege 3180 TiWorker.exe Token: SeSecurityPrivilege 3180 TiWorker.exe Token: SeBackupPrivilege 3180 TiWorker.exe Token: SeRestorePrivilege 3180 TiWorker.exe Token: SeSecurityPrivilege 3180 TiWorker.exe Token: SeBackupPrivilege 3180 TiWorker.exe Token: SeRestorePrivilege 3180 TiWorker.exe Token: SeSecurityPrivilege 3180 TiWorker.exe Token: SeBackupPrivilege 3180 TiWorker.exe Token: SeRestorePrivilege 3180 TiWorker.exe Token: SeSecurityPrivilege 3180 TiWorker.exe Token: SeBackupPrivilege 3180 TiWorker.exe Token: SeRestorePrivilege 3180 TiWorker.exe Token: SeSecurityPrivilege 3180 TiWorker.exe Token: SeIncBasePriorityPrivilege 1224 05b80fd98e21fd1e6486848a1ef438cce3f7218385f4fde4f9ef2d1565bf4d26.exe Token: SeBackupPrivilege 3180 TiWorker.exe Token: SeRestorePrivilege 3180 TiWorker.exe Token: SeSecurityPrivilege 3180 TiWorker.exe Token: SeBackupPrivilege 3180 TiWorker.exe Token: SeRestorePrivilege 3180 TiWorker.exe Token: SeSecurityPrivilege 3180 TiWorker.exe Token: SeBackupPrivilege 3180 TiWorker.exe Token: SeRestorePrivilege 3180 TiWorker.exe Token: SeSecurityPrivilege 3180 TiWorker.exe Token: SeBackupPrivilege 3180 TiWorker.exe Token: SeRestorePrivilege 3180 TiWorker.exe Token: SeSecurityPrivilege 3180 TiWorker.exe Token: SeBackupPrivilege 3180 TiWorker.exe Token: SeRestorePrivilege 3180 TiWorker.exe Token: SeSecurityPrivilege 3180 TiWorker.exe Token: SeBackupPrivilege 3180 TiWorker.exe Token: SeRestorePrivilege 3180 TiWorker.exe Token: SeSecurityPrivilege 3180 TiWorker.exe Token: SeBackupPrivilege 3180 TiWorker.exe Token: SeRestorePrivilege 3180 TiWorker.exe Token: SeSecurityPrivilege 3180 TiWorker.exe Token: SeBackupPrivilege 3180 TiWorker.exe Token: SeRestorePrivilege 3180 TiWorker.exe Token: SeSecurityPrivilege 3180 TiWorker.exe Token: SeBackupPrivilege 3180 TiWorker.exe Token: SeRestorePrivilege 3180 TiWorker.exe Token: SeSecurityPrivilege 3180 TiWorker.exe Token: SeBackupPrivilege 3180 TiWorker.exe Token: SeRestorePrivilege 3180 TiWorker.exe Token: SeSecurityPrivilege 3180 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
05b80fd98e21fd1e6486848a1ef438cce3f7218385f4fde4f9ef2d1565bf4d26.execmd.exedescription pid process target process PID 1224 wrote to memory of 980 1224 05b80fd98e21fd1e6486848a1ef438cce3f7218385f4fde4f9ef2d1565bf4d26.exe MediaCenter.exe PID 1224 wrote to memory of 980 1224 05b80fd98e21fd1e6486848a1ef438cce3f7218385f4fde4f9ef2d1565bf4d26.exe MediaCenter.exe PID 1224 wrote to memory of 980 1224 05b80fd98e21fd1e6486848a1ef438cce3f7218385f4fde4f9ef2d1565bf4d26.exe MediaCenter.exe PID 1224 wrote to memory of 3772 1224 05b80fd98e21fd1e6486848a1ef438cce3f7218385f4fde4f9ef2d1565bf4d26.exe cmd.exe PID 1224 wrote to memory of 3772 1224 05b80fd98e21fd1e6486848a1ef438cce3f7218385f4fde4f9ef2d1565bf4d26.exe cmd.exe PID 1224 wrote to memory of 3772 1224 05b80fd98e21fd1e6486848a1ef438cce3f7218385f4fde4f9ef2d1565bf4d26.exe cmd.exe PID 3772 wrote to memory of 3272 3772 cmd.exe PING.EXE PID 3772 wrote to memory of 3272 3772 cmd.exe PING.EXE PID 3772 wrote to memory of 3272 3772 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\05b80fd98e21fd1e6486848a1ef438cce3f7218385f4fde4f9ef2d1565bf4d26.exe"C:\Users\Admin\AppData\Local\Temp\05b80fd98e21fd1e6486848a1ef438cce3f7218385f4fde4f9ef2d1565bf4d26.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1224 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:980 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\05b80fd98e21fd1e6486848a1ef438cce3f7218385f4fde4f9ef2d1565bf4d26.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:3772 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:3272
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:3760
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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:724
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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:3180
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
50a7841f8b2bf3b1aa140865c3c8b20e
SHA1ffaf1f84bc98657e2a462d727315eb837a97a4e5
SHA256a3e6257d09124f76a47425a7295a3cb9397b3cfe581c72d8b25281479f6388e5
SHA512dd6a7ffa7ad4ee66fd4d82f0db28221e9444fc393b39bdea1d189192389f2f7037ba2c62b81d8c9a43176abacb2ce79f0a3ab78999cc9a673f32bd83d0436a7f
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C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeMD5
50a7841f8b2bf3b1aa140865c3c8b20e
SHA1ffaf1f84bc98657e2a462d727315eb837a97a4e5
SHA256a3e6257d09124f76a47425a7295a3cb9397b3cfe581c72d8b25281479f6388e5
SHA512dd6a7ffa7ad4ee66fd4d82f0db28221e9444fc393b39bdea1d189192389f2f7037ba2c62b81d8c9a43176abacb2ce79f0a3ab78999cc9a673f32bd83d0436a7f
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memory/980-133-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/1224-132-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB