Analysis
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max time kernel
158s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 10:43
Static task
static1
Behavioral task
behavioral1
Sample
0643f3bf97ea3496de7a9aa618d702a321501e9d82b5df2bb6f9a92d03ffdca4.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
0643f3bf97ea3496de7a9aa618d702a321501e9d82b5df2bb6f9a92d03ffdca4.exe
Resource
win10v2004-en-20220112
General
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Target
0643f3bf97ea3496de7a9aa618d702a321501e9d82b5df2bb6f9a92d03ffdca4.exe
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Size
216KB
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MD5
67b816ea23e04f014d7f4b6afb0c9107
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SHA1
531feb9b55592d797cd59fd19810195792c52c2f
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SHA256
0643f3bf97ea3496de7a9aa618d702a321501e9d82b5df2bb6f9a92d03ffdca4
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SHA512
e41db54fee4b1c709dcb24192af22fc6f1dceed7ea3509372063c635e21516783df31d9540ca9d410d6f7d7700b245a226f0cfc8e75f30af6e5c7a4e6fb498f0
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/3640-132-0x0000000000400000-0x0000000000420000-memory.dmp family_sakula -
Executes dropped EXE 1 IoCs
Processes:
MediaCenter.exepid process 1396 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
0643f3bf97ea3496de7a9aa618d702a321501e9d82b5df2bb6f9a92d03ffdca4.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 0643f3bf97ea3496de7a9aa618d702a321501e9d82b5df2bb6f9a92d03ffdca4.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
0643f3bf97ea3496de7a9aa618d702a321501e9d82b5df2bb6f9a92d03ffdca4.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 0643f3bf97ea3496de7a9aa618d702a321501e9d82b5df2bb6f9a92d03ffdca4.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 50 IoCs
Processes:
svchost.exedescription ioc process 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 (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "6.249703" 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\DownloadMonthlyCacheHostBytes = "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\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 (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\DownloadMonthlyRateFrBps = "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\InternetConnectionCount = "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\UplinkUsageBps = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "5.084812" 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\MemoryUsageKB = "4124" 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\DownloadMonthlyLanBytes = "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\DownloadMonthlyRateFrCnt = "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\CDNConnectionCount = "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\Usage 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\UplinkBps = "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\Config\DODownloadMode = "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\DownloadMonthlyLinkLocalBytes = "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\LinkLocalConnectionCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\FrDownloadRatePct = "90" 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\PriorityDownloadPendingCount = "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\GroupConnectionCount = "0" 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\SwarmCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132893136617317932" 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 (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\SwarmCount = "1" 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\MemoryUsageKB = "3960" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DownloadMode_BackCompat = "1" svchost.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
TiWorker.exe0643f3bf97ea3496de7a9aa618d702a321501e9d82b5df2bb6f9a92d03ffdca4.exedescription pid process Token: SeSecurityPrivilege 3764 TiWorker.exe Token: SeRestorePrivilege 3764 TiWorker.exe Token: SeBackupPrivilege 3764 TiWorker.exe Token: SeIncBasePriorityPrivilege 3640 0643f3bf97ea3496de7a9aa618d702a321501e9d82b5df2bb6f9a92d03ffdca4.exe Token: SeBackupPrivilege 3764 TiWorker.exe Token: SeRestorePrivilege 3764 TiWorker.exe Token: SeSecurityPrivilege 3764 TiWorker.exe Token: SeBackupPrivilege 3764 TiWorker.exe Token: SeRestorePrivilege 3764 TiWorker.exe Token: SeSecurityPrivilege 3764 TiWorker.exe Token: SeBackupPrivilege 3764 TiWorker.exe Token: SeRestorePrivilege 3764 TiWorker.exe Token: SeSecurityPrivilege 3764 TiWorker.exe Token: SeBackupPrivilege 3764 TiWorker.exe Token: SeRestorePrivilege 3764 TiWorker.exe Token: SeSecurityPrivilege 3764 TiWorker.exe Token: SeBackupPrivilege 3764 TiWorker.exe Token: SeRestorePrivilege 3764 TiWorker.exe Token: SeSecurityPrivilege 3764 TiWorker.exe Token: SeBackupPrivilege 3764 TiWorker.exe Token: SeRestorePrivilege 3764 TiWorker.exe Token: SeSecurityPrivilege 3764 TiWorker.exe Token: SeBackupPrivilege 3764 TiWorker.exe Token: SeRestorePrivilege 3764 TiWorker.exe Token: SeSecurityPrivilege 3764 TiWorker.exe Token: SeBackupPrivilege 3764 TiWorker.exe Token: SeRestorePrivilege 3764 TiWorker.exe Token: SeSecurityPrivilege 3764 TiWorker.exe Token: SeBackupPrivilege 3764 TiWorker.exe Token: SeRestorePrivilege 3764 TiWorker.exe Token: SeSecurityPrivilege 3764 TiWorker.exe Token: SeBackupPrivilege 3764 TiWorker.exe Token: SeRestorePrivilege 3764 TiWorker.exe Token: SeSecurityPrivilege 3764 TiWorker.exe Token: SeBackupPrivilege 3764 TiWorker.exe Token: SeRestorePrivilege 3764 TiWorker.exe Token: SeSecurityPrivilege 3764 TiWorker.exe Token: SeBackupPrivilege 3764 TiWorker.exe Token: SeRestorePrivilege 3764 TiWorker.exe Token: SeSecurityPrivilege 3764 TiWorker.exe Token: SeBackupPrivilege 3764 TiWorker.exe Token: SeRestorePrivilege 3764 TiWorker.exe Token: SeSecurityPrivilege 3764 TiWorker.exe Token: SeBackupPrivilege 3764 TiWorker.exe Token: SeRestorePrivilege 3764 TiWorker.exe Token: SeSecurityPrivilege 3764 TiWorker.exe Token: SeBackupPrivilege 3764 TiWorker.exe Token: SeRestorePrivilege 3764 TiWorker.exe Token: SeSecurityPrivilege 3764 TiWorker.exe Token: SeBackupPrivilege 3764 TiWorker.exe Token: SeRestorePrivilege 3764 TiWorker.exe Token: SeSecurityPrivilege 3764 TiWorker.exe Token: SeBackupPrivilege 3764 TiWorker.exe Token: SeRestorePrivilege 3764 TiWorker.exe Token: SeSecurityPrivilege 3764 TiWorker.exe Token: SeBackupPrivilege 3764 TiWorker.exe Token: SeRestorePrivilege 3764 TiWorker.exe Token: SeSecurityPrivilege 3764 TiWorker.exe Token: SeBackupPrivilege 3764 TiWorker.exe Token: SeRestorePrivilege 3764 TiWorker.exe Token: SeSecurityPrivilege 3764 TiWorker.exe Token: SeBackupPrivilege 3764 TiWorker.exe Token: SeRestorePrivilege 3764 TiWorker.exe Token: SeSecurityPrivilege 3764 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
0643f3bf97ea3496de7a9aa618d702a321501e9d82b5df2bb6f9a92d03ffdca4.execmd.exedescription pid process target process PID 3640 wrote to memory of 1396 3640 0643f3bf97ea3496de7a9aa618d702a321501e9d82b5df2bb6f9a92d03ffdca4.exe MediaCenter.exe PID 3640 wrote to memory of 1396 3640 0643f3bf97ea3496de7a9aa618d702a321501e9d82b5df2bb6f9a92d03ffdca4.exe MediaCenter.exe PID 3640 wrote to memory of 1396 3640 0643f3bf97ea3496de7a9aa618d702a321501e9d82b5df2bb6f9a92d03ffdca4.exe MediaCenter.exe PID 3640 wrote to memory of 3204 3640 0643f3bf97ea3496de7a9aa618d702a321501e9d82b5df2bb6f9a92d03ffdca4.exe cmd.exe PID 3640 wrote to memory of 3204 3640 0643f3bf97ea3496de7a9aa618d702a321501e9d82b5df2bb6f9a92d03ffdca4.exe cmd.exe PID 3640 wrote to memory of 3204 3640 0643f3bf97ea3496de7a9aa618d702a321501e9d82b5df2bb6f9a92d03ffdca4.exe cmd.exe PID 3204 wrote to memory of 3656 3204 cmd.exe PING.EXE PID 3204 wrote to memory of 3656 3204 cmd.exe PING.EXE PID 3204 wrote to memory of 3656 3204 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\0643f3bf97ea3496de7a9aa618d702a321501e9d82b5df2bb6f9a92d03ffdca4.exe"C:\Users\Admin\AppData\Local\Temp\0643f3bf97ea3496de7a9aa618d702a321501e9d82b5df2bb6f9a92d03ffdca4.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3640 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:1396 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0643f3bf97ea3496de7a9aa618d702a321501e9d82b5df2bb6f9a92d03ffdca4.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:3204 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:3656
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:2712
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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:2504
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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:3764
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
b1a4f4d4fe5f7edd5cc857efb749a9b8
SHA1c3fd88c23f42a2cebd6da1444b7bc9ac3cff12e1
SHA256dacdf3a701c42e512724c379686ed5ba59f8126a91240ee2727189ffdc30b0f7
SHA512b1444c8cb100dce1964109713d469588158aac0e7c053224090c506f8dfca1edee0d503321e0009aa2ec7c8b479ce33cb8bd83a082c9ade9c0b4862a2bdbb898
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C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeMD5
b1a4f4d4fe5f7edd5cc857efb749a9b8
SHA1c3fd88c23f42a2cebd6da1444b7bc9ac3cff12e1
SHA256dacdf3a701c42e512724c379686ed5ba59f8126a91240ee2727189ffdc30b0f7
SHA512b1444c8cb100dce1964109713d469588158aac0e7c053224090c506f8dfca1edee0d503321e0009aa2ec7c8b479ce33cb8bd83a082c9ade9c0b4862a2bdbb898
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memory/3640-132-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB