Analysis
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max time kernel
156s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
15-02-2022 19:31
Static task
static1
Behavioral task
behavioral1
Sample
d2b70e81fcaa5770ceacd4e708760d95.exe
Resource
win7-en-20211208
General
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Target
d2b70e81fcaa5770ceacd4e708760d95.exe
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Size
441KB
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MD5
d2b70e81fcaa5770ceacd4e708760d95
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SHA1
07c8bbc92e5588b312ebc08ae1119abff7b8d7e1
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SHA256
61e2c6c378e1a2732efb70d5df248936b38ec60d7f98527525a428f978270501
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SHA512
70234ab537cf7dd63630b68466ce4679b183d76fae9c199e227e24105ad594071b47af4b800180ad428d441b29358b78c530106972aa458b1f557a8203b1d7d4
Malware Config
Signatures
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Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
Processes:
WerFault.exedescription pid process target process PID 2756 created 2460 2756 WerFault.exe d2b70e81fcaa5770ceacd4e708760d95.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops file in Windows directory 4 IoCs
Processes:
WerFault.exesvchost.exeTiWorker.exedescription ioc process File created C:\Windows\AppCompat\Programs\Amcache.hve.tmp WerFault.exe 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 -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 3464 2460 WerFault.exe d2b70e81fcaa5770ceacd4e708760d95.exe -
Checks processor information in registry 2 TTPs 5 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
WerFault.exeMusNotifyIcon.exedescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 WerFault.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz WerFault.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString WerFault.exe Key opened \Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0 MusNotifyIcon.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz MusNotifyIcon.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
Processes:
WerFault.exedescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS WerFault.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU WerFault.exe -
Modifies data under HKEY_USERS 55 IoCs
Processes:
svchost.exedescription ioc process Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DODownloadMode = "1" 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\PriorityDownloadCount = "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\Config\KVFileExpirationTime = "132896034973059177" 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\NormalDownloadCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCdnBytes = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "6.249630" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.006551" 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\UplinkBps = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "14.201466" 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\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\InternetConnectionCount = "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\DownloadMonthlyRateBkCnt = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "1" svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage 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\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\UploadMonthlyInternetBytes = "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\BkDownloadRatePct = "45" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4012" 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\DownloadMonthlyCacheHostBytes = "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\DownlinkBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\FrDownloadRatePct = "90" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "10.844986" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4376" 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\UploadRatePct = "100" 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\NormalDownloadPendingCount = "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\MonthID = "1" 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\DownloadMonthlyGroupBytes = "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\LANConnectionCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4168" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "0" svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Settings 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\DownloadMode_BackCompat = "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\DownloadMonthlyRateBkBps = "1157726" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadPendingCount = "0" svchost.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
WerFault.exepid process 3464 WerFault.exe 3464 WerFault.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
d2b70e81fcaa5770ceacd4e708760d95.exeTiWorker.exedescription pid process Token: SeDebugPrivilege 2460 d2b70e81fcaa5770ceacd4e708760d95.exe Token: SeSecurityPrivilege 380 TiWorker.exe Token: SeRestorePrivilege 380 TiWorker.exe Token: SeBackupPrivilege 380 TiWorker.exe Token: SeBackupPrivilege 380 TiWorker.exe Token: SeRestorePrivilege 380 TiWorker.exe Token: SeSecurityPrivilege 380 TiWorker.exe Token: SeBackupPrivilege 380 TiWorker.exe Token: SeRestorePrivilege 380 TiWorker.exe Token: SeSecurityPrivilege 380 TiWorker.exe Token: SeBackupPrivilege 380 TiWorker.exe Token: SeRestorePrivilege 380 TiWorker.exe Token: SeSecurityPrivilege 380 TiWorker.exe Token: SeBackupPrivilege 380 TiWorker.exe Token: SeRestorePrivilege 380 TiWorker.exe Token: SeSecurityPrivilege 380 TiWorker.exe Token: SeBackupPrivilege 380 TiWorker.exe Token: SeRestorePrivilege 380 TiWorker.exe Token: SeSecurityPrivilege 380 TiWorker.exe Token: SeBackupPrivilege 380 TiWorker.exe Token: SeRestorePrivilege 380 TiWorker.exe Token: SeSecurityPrivilege 380 TiWorker.exe Token: SeBackupPrivilege 380 TiWorker.exe Token: SeRestorePrivilege 380 TiWorker.exe Token: SeSecurityPrivilege 380 TiWorker.exe Token: SeBackupPrivilege 380 TiWorker.exe Token: SeRestorePrivilege 380 TiWorker.exe Token: SeSecurityPrivilege 380 TiWorker.exe Token: SeBackupPrivilege 380 TiWorker.exe Token: SeRestorePrivilege 380 TiWorker.exe Token: SeSecurityPrivilege 380 TiWorker.exe Token: SeBackupPrivilege 380 TiWorker.exe Token: SeRestorePrivilege 380 TiWorker.exe Token: SeSecurityPrivilege 380 TiWorker.exe Token: SeBackupPrivilege 380 TiWorker.exe Token: SeRestorePrivilege 380 TiWorker.exe Token: SeSecurityPrivilege 380 TiWorker.exe Token: SeBackupPrivilege 380 TiWorker.exe Token: SeRestorePrivilege 380 TiWorker.exe Token: SeSecurityPrivilege 380 TiWorker.exe Token: SeBackupPrivilege 380 TiWorker.exe Token: SeRestorePrivilege 380 TiWorker.exe Token: SeSecurityPrivilege 380 TiWorker.exe Token: SeBackupPrivilege 380 TiWorker.exe Token: SeRestorePrivilege 380 TiWorker.exe Token: SeSecurityPrivilege 380 TiWorker.exe Token: SeBackupPrivilege 380 TiWorker.exe Token: SeRestorePrivilege 380 TiWorker.exe Token: SeSecurityPrivilege 380 TiWorker.exe Token: SeBackupPrivilege 380 TiWorker.exe Token: SeRestorePrivilege 380 TiWorker.exe Token: SeSecurityPrivilege 380 TiWorker.exe Token: SeBackupPrivilege 380 TiWorker.exe Token: SeRestorePrivilege 380 TiWorker.exe Token: SeSecurityPrivilege 380 TiWorker.exe Token: SeBackupPrivilege 380 TiWorker.exe Token: SeRestorePrivilege 380 TiWorker.exe Token: SeSecurityPrivilege 380 TiWorker.exe Token: SeBackupPrivilege 380 TiWorker.exe Token: SeRestorePrivilege 380 TiWorker.exe Token: SeSecurityPrivilege 380 TiWorker.exe Token: SeBackupPrivilege 380 TiWorker.exe Token: SeRestorePrivilege 380 TiWorker.exe Token: SeSecurityPrivilege 380 TiWorker.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
WerFault.exedescription pid process target process PID 2756 wrote to memory of 2460 2756 WerFault.exe d2b70e81fcaa5770ceacd4e708760d95.exe PID 2756 wrote to memory of 2460 2756 WerFault.exe d2b70e81fcaa5770ceacd4e708760d95.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\d2b70e81fcaa5770ceacd4e708760d95.exe"C:\Users\Admin\AppData\Local\Temp\d2b70e81fcaa5770ceacd4e708760d95.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2460 -s 11522⤵
- Drops file in Windows directory
- Program crash
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
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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
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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
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2460 -ip 24601⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/2460-130-0x00000000009ED000-0x0000000000A19000-memory.dmpFilesize
176KB
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memory/2460-131-0x00000000009ED000-0x0000000000A19000-memory.dmpFilesize
176KB
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memory/2460-132-0x0000000000930000-0x0000000000969000-memory.dmpFilesize
228KB
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memory/2460-133-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/2460-134-0x00000000744EE000-0x00000000744EF000-memory.dmpFilesize
4KB
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memory/2460-135-0x0000000005140000-0x0000000005141000-memory.dmpFilesize
4KB
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memory/2460-136-0x0000000005150000-0x00000000056F4000-memory.dmpFilesize
5.6MB
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memory/2460-137-0x0000000005142000-0x0000000005143000-memory.dmpFilesize
4KB
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memory/2460-138-0x0000000005143000-0x0000000005144000-memory.dmpFilesize
4KB
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memory/2460-139-0x0000000005700000-0x0000000005D18000-memory.dmpFilesize
6.1MB
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memory/2460-140-0x0000000005020000-0x0000000005032000-memory.dmpFilesize
72KB
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memory/2460-141-0x0000000005D20000-0x0000000005E2A000-memory.dmpFilesize
1.0MB
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memory/2460-142-0x0000000005144000-0x0000000005146000-memory.dmpFilesize
8KB
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memory/2460-143-0x0000000005060000-0x000000000509C000-memory.dmpFilesize
240KB
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memory/2460-144-0x0000000006070000-0x0000000006102000-memory.dmpFilesize
584KB
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memory/2460-145-0x0000000006110000-0x0000000006186000-memory.dmpFilesize
472KB
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memory/2460-146-0x0000000006310000-0x000000000632E000-memory.dmpFilesize
120KB
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memory/2460-147-0x0000000006380000-0x00000000063E6000-memory.dmpFilesize
408KB
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memory/2460-148-0x0000000006BD0000-0x0000000006D92000-memory.dmpFilesize
1.8MB
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memory/2460-149-0x0000000006DB0000-0x00000000072DC000-memory.dmpFilesize
5.2MB