Analysis
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max time kernel
159s -
max time network
143s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 09:37
Static task
static1
Behavioral task
behavioral1
Sample
097920e59c64cf2c83cc7fa665677f68d9019d2a9be6a4230f4ce410f7307793.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
097920e59c64cf2c83cc7fa665677f68d9019d2a9be6a4230f4ce410f7307793.exe
Resource
win10v2004-en-20220112
General
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Target
097920e59c64cf2c83cc7fa665677f68d9019d2a9be6a4230f4ce410f7307793.exe
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Size
176KB
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MD5
c4d6f0f1659e86b55ce8ffc09de99abe
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SHA1
875b1bd7e77f502647131cb00602293d7c488395
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SHA256
097920e59c64cf2c83cc7fa665677f68d9019d2a9be6a4230f4ce410f7307793
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SHA512
0af4426f0a44ba4351d5f9a328aefabf0f3e04f49d292252b978fbd599fb16c13ce6d00a8469c939373b1716b11a5f0d302888cc143a08bf62a443e6c3b5ccc6
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/624-132-0x0000000000400000-0x0000000000420000-memory.dmp family_sakula behavioral2/memory/3216-133-0x0000000000400000-0x0000000000420000-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 3216 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
097920e59c64cf2c83cc7fa665677f68d9019d2a9be6a4230f4ce410f7307793.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 097920e59c64cf2c83cc7fa665677f68d9019d2a9be6a4230f4ce410f7307793.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
097920e59c64cf2c83cc7fa665677f68d9019d2a9be6a4230f4ce410f7307793.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 097920e59c64cf2c83cc7fa665677f68d9019d2a9be6a4230f4ce410f7307793.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 49 IoCs
Processes:
svchost.exedescription ioc process 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\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\SwarmCount = "1" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CacheSizeBytes = "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\UploadMonthlyLanBytes = "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\PriorityDownloadCount = "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\UploadRatePct = "100" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "4.225217" 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\PeerInfoCount = "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 (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "19.996903" 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\UploadMonthlyInternetBytes = "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\Usage\DownloadMonthlyLanBytes = "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\PriorityDownloadPendingCount = "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\Usage\MonthlyUploadRestriction = "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\Config\DODownloadMode = "1" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132893088291428165" 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\MemoryUsageKB = "4104" 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\Usage\FrDownloadRatePct = "90" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "3.333625" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLinkLocalBytes = "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\DownlinkUsageBps = "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\NormalDownloadPendingCount = "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\Usage\DownloadMonthlyGroupBytes = "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\DownloadMonthlyRateBkCnt = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\LANConnectionCount = "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\DownloadMonthlyCdnBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCacheHostBytes = "0" svchost.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
097920e59c64cf2c83cc7fa665677f68d9019d2a9be6a4230f4ce410f7307793.exeTiWorker.exedescription pid process Token: SeIncBasePriorityPrivilege 624 097920e59c64cf2c83cc7fa665677f68d9019d2a9be6a4230f4ce410f7307793.exe Token: SeSecurityPrivilege 2908 TiWorker.exe Token: SeRestorePrivilege 2908 TiWorker.exe Token: SeBackupPrivilege 2908 TiWorker.exe Token: SeBackupPrivilege 2908 TiWorker.exe Token: SeRestorePrivilege 2908 TiWorker.exe Token: SeSecurityPrivilege 2908 TiWorker.exe Token: SeBackupPrivilege 2908 TiWorker.exe Token: SeRestorePrivilege 2908 TiWorker.exe Token: SeSecurityPrivilege 2908 TiWorker.exe Token: SeBackupPrivilege 2908 TiWorker.exe Token: SeRestorePrivilege 2908 TiWorker.exe Token: SeSecurityPrivilege 2908 TiWorker.exe Token: SeBackupPrivilege 2908 TiWorker.exe Token: SeRestorePrivilege 2908 TiWorker.exe Token: SeSecurityPrivilege 2908 TiWorker.exe Token: SeBackupPrivilege 2908 TiWorker.exe Token: SeRestorePrivilege 2908 TiWorker.exe Token: SeSecurityPrivilege 2908 TiWorker.exe Token: SeBackupPrivilege 2908 TiWorker.exe Token: SeRestorePrivilege 2908 TiWorker.exe Token: SeSecurityPrivilege 2908 TiWorker.exe Token: SeBackupPrivilege 2908 TiWorker.exe Token: SeRestorePrivilege 2908 TiWorker.exe Token: SeSecurityPrivilege 2908 TiWorker.exe Token: SeBackupPrivilege 2908 TiWorker.exe Token: SeRestorePrivilege 2908 TiWorker.exe Token: SeSecurityPrivilege 2908 TiWorker.exe Token: SeBackupPrivilege 2908 TiWorker.exe Token: SeRestorePrivilege 2908 TiWorker.exe Token: SeSecurityPrivilege 2908 TiWorker.exe Token: SeBackupPrivilege 2908 TiWorker.exe Token: SeRestorePrivilege 2908 TiWorker.exe Token: SeSecurityPrivilege 2908 TiWorker.exe Token: SeBackupPrivilege 2908 TiWorker.exe Token: SeRestorePrivilege 2908 TiWorker.exe Token: SeSecurityPrivilege 2908 TiWorker.exe Token: SeBackupPrivilege 2908 TiWorker.exe Token: SeRestorePrivilege 2908 TiWorker.exe Token: SeSecurityPrivilege 2908 TiWorker.exe Token: SeBackupPrivilege 2908 TiWorker.exe Token: SeRestorePrivilege 2908 TiWorker.exe Token: SeSecurityPrivilege 2908 TiWorker.exe Token: SeBackupPrivilege 2908 TiWorker.exe Token: SeRestorePrivilege 2908 TiWorker.exe Token: SeSecurityPrivilege 2908 TiWorker.exe Token: SeBackupPrivilege 2908 TiWorker.exe Token: SeRestorePrivilege 2908 TiWorker.exe Token: SeSecurityPrivilege 2908 TiWorker.exe Token: SeBackupPrivilege 2908 TiWorker.exe Token: SeRestorePrivilege 2908 TiWorker.exe Token: SeSecurityPrivilege 2908 TiWorker.exe Token: SeBackupPrivilege 2908 TiWorker.exe Token: SeRestorePrivilege 2908 TiWorker.exe Token: SeSecurityPrivilege 2908 TiWorker.exe Token: SeBackupPrivilege 2908 TiWorker.exe Token: SeRestorePrivilege 2908 TiWorker.exe Token: SeSecurityPrivilege 2908 TiWorker.exe Token: SeBackupPrivilege 2908 TiWorker.exe Token: SeRestorePrivilege 2908 TiWorker.exe Token: SeSecurityPrivilege 2908 TiWorker.exe Token: SeBackupPrivilege 2908 TiWorker.exe Token: SeRestorePrivilege 2908 TiWorker.exe Token: SeSecurityPrivilege 2908 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
097920e59c64cf2c83cc7fa665677f68d9019d2a9be6a4230f4ce410f7307793.execmd.exedescription pid process target process PID 624 wrote to memory of 3216 624 097920e59c64cf2c83cc7fa665677f68d9019d2a9be6a4230f4ce410f7307793.exe MediaCenter.exe PID 624 wrote to memory of 3216 624 097920e59c64cf2c83cc7fa665677f68d9019d2a9be6a4230f4ce410f7307793.exe MediaCenter.exe PID 624 wrote to memory of 3216 624 097920e59c64cf2c83cc7fa665677f68d9019d2a9be6a4230f4ce410f7307793.exe MediaCenter.exe PID 624 wrote to memory of 3076 624 097920e59c64cf2c83cc7fa665677f68d9019d2a9be6a4230f4ce410f7307793.exe cmd.exe PID 624 wrote to memory of 3076 624 097920e59c64cf2c83cc7fa665677f68d9019d2a9be6a4230f4ce410f7307793.exe cmd.exe PID 624 wrote to memory of 3076 624 097920e59c64cf2c83cc7fa665677f68d9019d2a9be6a4230f4ce410f7307793.exe cmd.exe PID 3076 wrote to memory of 1068 3076 cmd.exe PING.EXE PID 3076 wrote to memory of 1068 3076 cmd.exe PING.EXE PID 3076 wrote to memory of 1068 3076 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\097920e59c64cf2c83cc7fa665677f68d9019d2a9be6a4230f4ce410f7307793.exe"C:\Users\Admin\AppData\Local\Temp\097920e59c64cf2c83cc7fa665677f68d9019d2a9be6a4230f4ce410f7307793.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:624 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:3216 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\097920e59c64cf2c83cc7fa665677f68d9019d2a9be6a4230f4ce410f7307793.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:3076 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:1068
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:3540
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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:2188
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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:2908
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
05d6396b236a0b10784cd5da5fc1be8c
SHA123a0a58dcc850af8bb67a334c041bd13da633f14
SHA256162cd8e3a6c85b37c4b7a66a256c7e50a17c9a1b8776527cbc664d43ac5abc7c
SHA512c42176941e7215bb9a7c21309ea409d6d409ebed9d863eefad29f98df07d4c1062c9e84808217974e9ba61a951929f18c5690a921772f8298d3684a859975a5c
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C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeMD5
05d6396b236a0b10784cd5da5fc1be8c
SHA123a0a58dcc850af8bb67a334c041bd13da633f14
SHA256162cd8e3a6c85b37c4b7a66a256c7e50a17c9a1b8776527cbc664d43ac5abc7c
SHA512c42176941e7215bb9a7c21309ea409d6d409ebed9d863eefad29f98df07d4c1062c9e84808217974e9ba61a951929f18c5690a921772f8298d3684a859975a5c
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memory/624-132-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/3216-133-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB