Analysis
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max time kernel
152s -
max time network
159s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 09:44
Static task
static1
Behavioral task
behavioral1
Sample
0926070e1eaf8d587f4da3090ea8468b3659d9f94fd61944cb24233c67a24a89.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
0926070e1eaf8d587f4da3090ea8468b3659d9f94fd61944cb24233c67a24a89.exe
Resource
win10v2004-en-20220112
General
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Target
0926070e1eaf8d587f4da3090ea8468b3659d9f94fd61944cb24233c67a24a89.exe
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Size
217KB
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MD5
f6629e94d83b57f50188ef210a9eda69
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SHA1
4bfdcfd2c62b287916a3dd38036e01a6bbfb86d3
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SHA256
0926070e1eaf8d587f4da3090ea8468b3659d9f94fd61944cb24233c67a24a89
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SHA512
6c3ae11547ce322b4a849fd56295077b5682089fd7f421d34834622f516375084e0115f29a42039f0eaa50b08cb87e9df4717b4152fab8b093d8f2ee75c00080
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/2372-132-0x0000000000400000-0x0000000000420000-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 1512 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
0926070e1eaf8d587f4da3090ea8468b3659d9f94fd61944cb24233c67a24a89.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 0926070e1eaf8d587f4da3090ea8468b3659d9f94fd61944cb24233c67a24a89.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
0926070e1eaf8d587f4da3090ea8468b3659d9f94fd61944cb24233c67a24a89.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 0926070e1eaf8d587f4da3090ea8468b3659d9f94fd61944cb24233c67a24a89.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 54 IoCs
Processes:
svchost.exedescription ioc process 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\DownloadMonthlyRateBkBps = "0" 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\MonthID = "2" 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\DownloadMonthlyLanBytes = "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\DownlinkUsageBps = "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\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 = "7.999960" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4328" 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\DownloadMonthlyRateFrBps = "0" 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 = "0" 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\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 = "2.500018" 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\Config\KVFileExpirationTime = "132893097101789278" 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\InternetConnectionCount = "0" 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\DownloadMonthlyRateFrCnt = "0" 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\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\UploadMonthlyInternetBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkCnt = "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\GroupConnectionCount = "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\MemoryUsageKB = "4100" 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\DownloadMonthlyGroupBytes = "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\LinkLocalConnectionCount = "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\NormalDownloadPendingCount = "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\Config\DODownloadMode = "1" 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\MonthID = "1" 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\PriorityDownloadPendingCount = "0" 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\UplinkUsageBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthlyUploadRestriction = "0" svchost.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
TiWorker.exe0926070e1eaf8d587f4da3090ea8468b3659d9f94fd61944cb24233c67a24a89.exedescription pid process Token: SeSecurityPrivilege 3408 TiWorker.exe Token: SeRestorePrivilege 3408 TiWorker.exe Token: SeBackupPrivilege 3408 TiWorker.exe Token: SeBackupPrivilege 3408 TiWorker.exe Token: SeRestorePrivilege 3408 TiWorker.exe Token: SeSecurityPrivilege 3408 TiWorker.exe Token: SeBackupPrivilege 3408 TiWorker.exe Token: SeRestorePrivilege 3408 TiWorker.exe Token: SeSecurityPrivilege 3408 TiWorker.exe Token: SeBackupPrivilege 3408 TiWorker.exe Token: SeRestorePrivilege 3408 TiWorker.exe Token: SeSecurityPrivilege 3408 TiWorker.exe Token: SeBackupPrivilege 3408 TiWorker.exe Token: SeRestorePrivilege 3408 TiWorker.exe Token: SeSecurityPrivilege 3408 TiWorker.exe Token: SeBackupPrivilege 3408 TiWorker.exe Token: SeRestorePrivilege 3408 TiWorker.exe Token: SeSecurityPrivilege 3408 TiWorker.exe Token: SeIncBasePriorityPrivilege 2372 0926070e1eaf8d587f4da3090ea8468b3659d9f94fd61944cb24233c67a24a89.exe Token: SeBackupPrivilege 3408 TiWorker.exe Token: SeRestorePrivilege 3408 TiWorker.exe Token: SeSecurityPrivilege 3408 TiWorker.exe Token: SeBackupPrivilege 3408 TiWorker.exe Token: SeRestorePrivilege 3408 TiWorker.exe Token: SeSecurityPrivilege 3408 TiWorker.exe Token: SeBackupPrivilege 3408 TiWorker.exe Token: SeRestorePrivilege 3408 TiWorker.exe Token: SeSecurityPrivilege 3408 TiWorker.exe Token: SeBackupPrivilege 3408 TiWorker.exe Token: SeRestorePrivilege 3408 TiWorker.exe Token: SeSecurityPrivilege 3408 TiWorker.exe Token: SeBackupPrivilege 3408 TiWorker.exe Token: SeRestorePrivilege 3408 TiWorker.exe Token: SeSecurityPrivilege 3408 TiWorker.exe Token: SeBackupPrivilege 3408 TiWorker.exe Token: SeRestorePrivilege 3408 TiWorker.exe Token: SeSecurityPrivilege 3408 TiWorker.exe Token: SeBackupPrivilege 3408 TiWorker.exe Token: SeRestorePrivilege 3408 TiWorker.exe Token: SeSecurityPrivilege 3408 TiWorker.exe Token: SeBackupPrivilege 3408 TiWorker.exe Token: SeRestorePrivilege 3408 TiWorker.exe Token: SeSecurityPrivilege 3408 TiWorker.exe Token: SeBackupPrivilege 3408 TiWorker.exe Token: SeRestorePrivilege 3408 TiWorker.exe Token: SeSecurityPrivilege 3408 TiWorker.exe Token: SeBackupPrivilege 3408 TiWorker.exe Token: SeRestorePrivilege 3408 TiWorker.exe Token: SeSecurityPrivilege 3408 TiWorker.exe Token: SeBackupPrivilege 3408 TiWorker.exe Token: SeRestorePrivilege 3408 TiWorker.exe Token: SeSecurityPrivilege 3408 TiWorker.exe Token: SeBackupPrivilege 3408 TiWorker.exe Token: SeRestorePrivilege 3408 TiWorker.exe Token: SeSecurityPrivilege 3408 TiWorker.exe Token: SeBackupPrivilege 3408 TiWorker.exe Token: SeRestorePrivilege 3408 TiWorker.exe Token: SeSecurityPrivilege 3408 TiWorker.exe Token: SeBackupPrivilege 3408 TiWorker.exe Token: SeRestorePrivilege 3408 TiWorker.exe Token: SeSecurityPrivilege 3408 TiWorker.exe Token: SeBackupPrivilege 3408 TiWorker.exe Token: SeRestorePrivilege 3408 TiWorker.exe Token: SeSecurityPrivilege 3408 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
0926070e1eaf8d587f4da3090ea8468b3659d9f94fd61944cb24233c67a24a89.execmd.exedescription pid process target process PID 2372 wrote to memory of 1512 2372 0926070e1eaf8d587f4da3090ea8468b3659d9f94fd61944cb24233c67a24a89.exe MediaCenter.exe PID 2372 wrote to memory of 1512 2372 0926070e1eaf8d587f4da3090ea8468b3659d9f94fd61944cb24233c67a24a89.exe MediaCenter.exe PID 2372 wrote to memory of 1512 2372 0926070e1eaf8d587f4da3090ea8468b3659d9f94fd61944cb24233c67a24a89.exe MediaCenter.exe PID 2372 wrote to memory of 3488 2372 0926070e1eaf8d587f4da3090ea8468b3659d9f94fd61944cb24233c67a24a89.exe cmd.exe PID 2372 wrote to memory of 3488 2372 0926070e1eaf8d587f4da3090ea8468b3659d9f94fd61944cb24233c67a24a89.exe cmd.exe PID 2372 wrote to memory of 3488 2372 0926070e1eaf8d587f4da3090ea8468b3659d9f94fd61944cb24233c67a24a89.exe cmd.exe PID 3488 wrote to memory of 1936 3488 cmd.exe PING.EXE PID 3488 wrote to memory of 1936 3488 cmd.exe PING.EXE PID 3488 wrote to memory of 1936 3488 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\0926070e1eaf8d587f4da3090ea8468b3659d9f94fd61944cb24233c67a24a89.exe"C:\Users\Admin\AppData\Local\Temp\0926070e1eaf8d587f4da3090ea8468b3659d9f94fd61944cb24233c67a24a89.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2372 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:1512 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0926070e1eaf8d587f4da3090ea8468b3659d9f94fd61944cb24233c67a24a89.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:3488 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:1936
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:380
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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:1748
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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:3408
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
89871eb34554ec0770be3658da68b0d2
SHA1bd7f63fbed7221694deaa8c4d92615f872ec43fb
SHA256b3d52ccb252a6d0d4367a9318b5c2879c7cb3b208d65f505bad8b8196ae1c9b0
SHA5126d59633535278ba4eb348a617d347ba3700c0bae34671872447481e58b9ab6829976eeb2701693d7d6a3b5d7ca91bab34bffcbaa16a11c3bacecbffa2de90efa
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C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeMD5
89871eb34554ec0770be3658da68b0d2
SHA1bd7f63fbed7221694deaa8c4d92615f872ec43fb
SHA256b3d52ccb252a6d0d4367a9318b5c2879c7cb3b208d65f505bad8b8196ae1c9b0
SHA5126d59633535278ba4eb348a617d347ba3700c0bae34671872447481e58b9ab6829976eeb2701693d7d6a3b5d7ca91bab34bffcbaa16a11c3bacecbffa2de90efa
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memory/2372-132-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB