Analysis
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max time kernel
158s -
max time network
159s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 11:33
Static task
static1
Behavioral task
behavioral1
Sample
041ef5263504ab8fbb972529b2f7c861bb04175c9aa7b9cbb2a7c8a2c672de60.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
041ef5263504ab8fbb972529b2f7c861bb04175c9aa7b9cbb2a7c8a2c672de60.exe
Resource
win10v2004-en-20220112
General
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Target
041ef5263504ab8fbb972529b2f7c861bb04175c9aa7b9cbb2a7c8a2c672de60.exe
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Size
101KB
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MD5
c4a0411e035d4e538e295b19af6554c7
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SHA1
0727a1eabe9b6f782b69dd8ae15929208c81f50c
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SHA256
041ef5263504ab8fbb972529b2f7c861bb04175c9aa7b9cbb2a7c8a2c672de60
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SHA512
5fc58033b82e1551a36d547c27d258fea8ffafcbae24a969ef074e3b20df18bb7f3ac4092b89fc1f253acf686b02464c356223631069af02bba74f15e8a25dd7
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 -
Executes dropped EXE 1 IoCs
Processes:
MediaCenter.exepid process 3292 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
041ef5263504ab8fbb972529b2f7c861bb04175c9aa7b9cbb2a7c8a2c672de60.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 041ef5263504ab8fbb972529b2f7c861bb04175c9aa7b9cbb2a7c8a2c672de60.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
041ef5263504ab8fbb972529b2f7c861bb04175c9aa7b9cbb2a7c8a2c672de60.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 041ef5263504ab8fbb972529b2f7c861bb04175c9aa7b9cbb2a7c8a2c672de60.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 56 IoCs
Processes:
svchost.exedescription ioc process 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\UploadMonthlyLanBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4304" 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\InternetConnectionCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4068" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4104" 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\CDNConnectionCount = "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\Config\DODownloadMode = "1" 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\DownloadMonthlyRateBkCnt = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "8.333431" 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\DownloadMonthlyInternetBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCdnBytes = "90228624" 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\SwarmCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132893167218075829" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthID = "1" 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\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\CacheSizeBytes = "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\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\UploadCount = "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\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\PeerInfoCount = "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\MemoryUsageKB = "4320" 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\LANConnectionCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "12.121602" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkCnt = "4" 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\UploadRatePct = "100" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkBps = "1157726" 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\MonthID = "2" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "16.668302" 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\UploadMonthlyInternetBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyGroupBytes = "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\FrDownloadRatePct = "90" 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\PriorityDownloadPendingCount = "0" svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization 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\DownloadMonthlyCacheHostBytes = "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\UplinkUsageBps = "0" svchost.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
TiWorker.exe041ef5263504ab8fbb972529b2f7c861bb04175c9aa7b9cbb2a7c8a2c672de60.exedescription pid process Token: SeSecurityPrivilege 3416 TiWorker.exe Token: SeRestorePrivilege 3416 TiWorker.exe Token: SeBackupPrivilege 3416 TiWorker.exe Token: SeBackupPrivilege 3416 TiWorker.exe Token: SeRestorePrivilege 3416 TiWorker.exe Token: SeSecurityPrivilege 3416 TiWorker.exe Token: SeBackupPrivilege 3416 TiWorker.exe Token: SeRestorePrivilege 3416 TiWorker.exe Token: SeSecurityPrivilege 3416 TiWorker.exe Token: SeBackupPrivilege 3416 TiWorker.exe Token: SeRestorePrivilege 3416 TiWorker.exe Token: SeSecurityPrivilege 3416 TiWorker.exe Token: SeBackupPrivilege 3416 TiWorker.exe Token: SeRestorePrivilege 3416 TiWorker.exe Token: SeSecurityPrivilege 3416 TiWorker.exe Token: SeBackupPrivilege 3416 TiWorker.exe Token: SeRestorePrivilege 3416 TiWorker.exe Token: SeSecurityPrivilege 3416 TiWorker.exe Token: SeIncBasePriorityPrivilege 3008 041ef5263504ab8fbb972529b2f7c861bb04175c9aa7b9cbb2a7c8a2c672de60.exe Token: SeBackupPrivilege 3416 TiWorker.exe Token: SeRestorePrivilege 3416 TiWorker.exe Token: SeSecurityPrivilege 3416 TiWorker.exe Token: SeBackupPrivilege 3416 TiWorker.exe Token: SeRestorePrivilege 3416 TiWorker.exe Token: SeSecurityPrivilege 3416 TiWorker.exe Token: SeBackupPrivilege 3416 TiWorker.exe Token: SeRestorePrivilege 3416 TiWorker.exe Token: SeSecurityPrivilege 3416 TiWorker.exe Token: SeBackupPrivilege 3416 TiWorker.exe Token: SeRestorePrivilege 3416 TiWorker.exe Token: SeSecurityPrivilege 3416 TiWorker.exe Token: SeBackupPrivilege 3416 TiWorker.exe Token: SeRestorePrivilege 3416 TiWorker.exe Token: SeSecurityPrivilege 3416 TiWorker.exe Token: SeBackupPrivilege 3416 TiWorker.exe Token: SeRestorePrivilege 3416 TiWorker.exe Token: SeSecurityPrivilege 3416 TiWorker.exe Token: SeBackupPrivilege 3416 TiWorker.exe Token: SeRestorePrivilege 3416 TiWorker.exe Token: SeSecurityPrivilege 3416 TiWorker.exe Token: SeBackupPrivilege 3416 TiWorker.exe Token: SeRestorePrivilege 3416 TiWorker.exe Token: SeSecurityPrivilege 3416 TiWorker.exe Token: SeBackupPrivilege 3416 TiWorker.exe Token: SeRestorePrivilege 3416 TiWorker.exe Token: SeSecurityPrivilege 3416 TiWorker.exe Token: SeBackupPrivilege 3416 TiWorker.exe Token: SeRestorePrivilege 3416 TiWorker.exe Token: SeSecurityPrivilege 3416 TiWorker.exe Token: SeBackupPrivilege 3416 TiWorker.exe Token: SeRestorePrivilege 3416 TiWorker.exe Token: SeSecurityPrivilege 3416 TiWorker.exe Token: SeBackupPrivilege 3416 TiWorker.exe Token: SeRestorePrivilege 3416 TiWorker.exe Token: SeSecurityPrivilege 3416 TiWorker.exe Token: SeBackupPrivilege 3416 TiWorker.exe Token: SeRestorePrivilege 3416 TiWorker.exe Token: SeSecurityPrivilege 3416 TiWorker.exe Token: SeBackupPrivilege 3416 TiWorker.exe Token: SeRestorePrivilege 3416 TiWorker.exe Token: SeSecurityPrivilege 3416 TiWorker.exe Token: SeBackupPrivilege 3416 TiWorker.exe Token: SeRestorePrivilege 3416 TiWorker.exe Token: SeSecurityPrivilege 3416 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
041ef5263504ab8fbb972529b2f7c861bb04175c9aa7b9cbb2a7c8a2c672de60.execmd.exedescription pid process target process PID 3008 wrote to memory of 3292 3008 041ef5263504ab8fbb972529b2f7c861bb04175c9aa7b9cbb2a7c8a2c672de60.exe MediaCenter.exe PID 3008 wrote to memory of 3292 3008 041ef5263504ab8fbb972529b2f7c861bb04175c9aa7b9cbb2a7c8a2c672de60.exe MediaCenter.exe PID 3008 wrote to memory of 3292 3008 041ef5263504ab8fbb972529b2f7c861bb04175c9aa7b9cbb2a7c8a2c672de60.exe MediaCenter.exe PID 3008 wrote to memory of 3520 3008 041ef5263504ab8fbb972529b2f7c861bb04175c9aa7b9cbb2a7c8a2c672de60.exe cmd.exe PID 3008 wrote to memory of 3520 3008 041ef5263504ab8fbb972529b2f7c861bb04175c9aa7b9cbb2a7c8a2c672de60.exe cmd.exe PID 3008 wrote to memory of 3520 3008 041ef5263504ab8fbb972529b2f7c861bb04175c9aa7b9cbb2a7c8a2c672de60.exe cmd.exe PID 3520 wrote to memory of 632 3520 cmd.exe PING.EXE PID 3520 wrote to memory of 632 3520 cmd.exe PING.EXE PID 3520 wrote to memory of 632 3520 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\041ef5263504ab8fbb972529b2f7c861bb04175c9aa7b9cbb2a7c8a2c672de60.exe"C:\Users\Admin\AppData\Local\Temp\041ef5263504ab8fbb972529b2f7c861bb04175c9aa7b9cbb2a7c8a2c672de60.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3008 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:3292 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\041ef5263504ab8fbb972529b2f7c861bb04175c9aa7b9cbb2a7c8a2c672de60.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:3520 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:632
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:3140
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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:3448
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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:3416
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
3bad9b7d70bb8d25a016796f3f87cc6e
SHA1ce71a8d892099f5cd3fea4fb858feab354aa7b1d
SHA2563948f023f3ed96515af455c5e3c28079049c9a8d15a0a994db1a63f0a1caf782
SHA5124b6adf3ab4317f501d0a69cb85b0fddb56b339950146a4f38fa352909a884fc73721225277dd9db35ca429877cd3a3672279c4b5944d63b681b5451bcccfffab
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C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeMD5
3bad9b7d70bb8d25a016796f3f87cc6e
SHA1ce71a8d892099f5cd3fea4fb858feab354aa7b1d
SHA2563948f023f3ed96515af455c5e3c28079049c9a8d15a0a994db1a63f0a1caf782
SHA5124b6adf3ab4317f501d0a69cb85b0fddb56b339950146a4f38fa352909a884fc73721225277dd9db35ca429877cd3a3672279c4b5944d63b681b5451bcccfffab