Analysis
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max time kernel
118s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
19-12-2022 17:10
Static task
static1
Behavioral task
behavioral1
Sample
c51c27c86facb3ce46801e6a9f900292b5ba336760708438483e5246b7440029.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
c51c27c86facb3ce46801e6a9f900292b5ba336760708438483e5246b7440029.exe
Resource
win10v2004-20220812-en
General
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Target
c51c27c86facb3ce46801e6a9f900292b5ba336760708438483e5246b7440029.exe
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Size
1.1MB
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MD5
8a4cb873c04ffe6859dd5bb381fed9b2
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SHA1
c71cb06097a8172057c7dd0ca61c27e164c1939a
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SHA256
c51c27c86facb3ce46801e6a9f900292b5ba336760708438483e5246b7440029
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SHA512
352510a901636c9880afea8bdb1b9a8da63bed989b959ef1a560ec6baf59ea09ada9b04f853a838938510507b0d4d3aab484b46876a9801d7f9b138af7bd0fbd
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SSDEEP
24576:cV/Gyl0a5nGoVsJIsk/DVdmsbzK8+2HDE0j1D3W9:u1F5nnsJvk/Tmsb2sHB7W9
Malware Config
Signatures
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Blocklisted process makes network request 3 IoCs
Processes:
rundll32.exeflow pid process 2 1236 rundll32.exe 5 1236 rundll32.exe 9 1236 rundll32.exe -
Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 1236 rundll32.exe -
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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Suspicious use of SetThreadContext 1 IoCs
Processes:
rundll32.exedescription pid process target process PID 1236 set thread context of 2008 1236 rundll32.exe rundll32.exe -
Drops file in Program Files directory 32 IoCs
Processes:
rundll32.exedescription ioc process File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\JP2KLib.dll rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\warning.gif rundll32.exe File created C:\Program Files (x86)\Windows Media Player\en-US\CourierStd.otf rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\HLS.api rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\tl.gif rundll32.exe File created C:\Program Files (x86)\Windows Media Player\en-US\tl.gif rundll32.exe File created C:\Program Files (x86)\Windows Media Player\en-US\warning.gif rundll32.exe File opened for modification C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX\AcroPDF.dll rundll32.exe File created C:\Program Files (x86)\Windows Media Player\en-US\AcroBroker.exe rundll32.exe File created C:\Program Files (x86)\Windows Media Player\en-US\AcroPDF.dll rundll32.exe File created C:\Program Files (x86)\Windows Media Player\en-US\br.gif rundll32.exe File created C:\Program Files (x86)\Windows Media Player\en-US\logsession.dll rundll32.exe File created C:\Program Files (x86)\Windows Media Player\en-US\CGMIMP32.FLT rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\br.gif rundll32.exe File opened for modification C:\Program Files (x86)\Common Files\DESIGNER\MSADDNDR.DLL rundll32.exe File created C:\Program Files (x86)\Windows Media Player\en-US\EEINTL.DLL rundll32.exe File created C:\Program Files (x86)\Windows Media Player\en-US\MyriadPro-Regular.otf rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Resource\Font\MyriadPro-Regular.otf rundll32.exe File created C:\Program Files (x86)\Windows Media Player\en-US\JP2KLib.dll rundll32.exe File created C:\Program Files (x86)\Windows Media Player\en-US\CENTEURO.TXT rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroBroker.exe rundll32.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\EQUATION\1033\EEINTL.DLL rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\add_reviewer.gif rundll32.exe File opened for modification C:\Program Files (x86)\Common Files\Adobe\Updater6\AdobeUpdaterInstallMgr.exe rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Resource\Font\CourierStd.otf rundll32.exe File created C:\Program Files (x86)\Windows Media Player\en-US\add_reviewer.gif rundll32.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\GRPHFLT\CGMIMP32.FLT rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Resource\TypeSupport\Unicode\Mappings\win\CP1254.TXT rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Resource\TypeSupport\Unicode\Mappings\Mac\CENTEURO.TXT rundll32.exe File created C:\Program Files (x86)\Windows Media Player\en-US\AdobeUpdaterInstallMgr.exe rundll32.exe File created C:\Program Files (x86)\Windows Media Player\en-US\CP1254.TXT rundll32.exe File created C:\Program Files (x86)\Windows Media Player\en-US\HLS.api rundll32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1812 1236 WerFault.exe rundll32.exe -
Checks processor information in registry 2 TTPs 27 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Status rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\FeatureSet rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\VendorIdentifier rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\FeatureSet rundll32.exe Key value enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Platform ID rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Configuration Data rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Update Status rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Component Information rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Identifier rundll32.exe Key enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Signature rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Configuration Data rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\ProcessorNameString rundll32.exe Key value enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Component Information rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Update Signature rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Previous Update Signature rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Platform ID rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\~MHz rundll32.exe -
Modifies registry class 24 IoCs
Processes:
rundll32.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\MRUListEx = 00000000ffffffff rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\NodeSlot = "1" rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\MRUListEx = ffffffff rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = 00000000ffffffff rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_Classes\Local Settings rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 7e0074001c0043465346160031000000000000000000100041707044617461000000741a595e96dfd3488d671733bcee28bac5cdfadf9f6756418947c5c76bc0b67f3c0008000400efbe00000000000000002a000000000000000000000000000000000000000000000000004100700070004400610074006100000042000000 rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 = 4c003100000000000000000010004c6f63616c00380008000400efbe00000000000000002a000000000000000000000000000000000000000000000000004c006f00630061006c00000014000000 rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 = 4a0031000000000000000000102054656d700000360008000400efbe00000000000000002a00000000000000000000000000000000000000000000000000540065006d007000000014000000 rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f44471a0359723fa74489c55595fe6b30ee0000 rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\KnownFolderDerivedFolderType = "{57807898-8C4F-4462-BB63-71042380B109}" rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
rundll32.exedescription pid process Token: SeDebugPrivilege 1236 rundll32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
rundll32.exepid process 2008 rundll32.exe -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
c51c27c86facb3ce46801e6a9f900292b5ba336760708438483e5246b7440029.exerundll32.exedescription pid process target process PID 1292 wrote to memory of 1236 1292 c51c27c86facb3ce46801e6a9f900292b5ba336760708438483e5246b7440029.exe rundll32.exe PID 1292 wrote to memory of 1236 1292 c51c27c86facb3ce46801e6a9f900292b5ba336760708438483e5246b7440029.exe rundll32.exe PID 1292 wrote to memory of 1236 1292 c51c27c86facb3ce46801e6a9f900292b5ba336760708438483e5246b7440029.exe rundll32.exe PID 1292 wrote to memory of 1236 1292 c51c27c86facb3ce46801e6a9f900292b5ba336760708438483e5246b7440029.exe rundll32.exe PID 1292 wrote to memory of 1236 1292 c51c27c86facb3ce46801e6a9f900292b5ba336760708438483e5246b7440029.exe rundll32.exe PID 1292 wrote to memory of 1236 1292 c51c27c86facb3ce46801e6a9f900292b5ba336760708438483e5246b7440029.exe rundll32.exe PID 1292 wrote to memory of 1236 1292 c51c27c86facb3ce46801e6a9f900292b5ba336760708438483e5246b7440029.exe rundll32.exe PID 1236 wrote to memory of 1812 1236 rundll32.exe WerFault.exe PID 1236 wrote to memory of 1812 1236 rundll32.exe WerFault.exe PID 1236 wrote to memory of 1812 1236 rundll32.exe WerFault.exe PID 1236 wrote to memory of 1812 1236 rundll32.exe WerFault.exe PID 1236 wrote to memory of 2008 1236 rundll32.exe rundll32.exe PID 1236 wrote to memory of 2008 1236 rundll32.exe rundll32.exe PID 1236 wrote to memory of 2008 1236 rundll32.exe rundll32.exe PID 1236 wrote to memory of 2008 1236 rundll32.exe rundll32.exe PID 1236 wrote to memory of 2008 1236 rundll32.exe rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c51c27c86facb3ce46801e6a9f900292b5ba336760708438483e5246b7440029.exe"C:\Users\Admin\AppData\Local\Temp\c51c27c86facb3ce46801e6a9f900292b5ba336760708438483e5246b7440029.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1292 -
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\Ipoetwsuqhd.tmp",Sufeidweoe2⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1236 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1236 -s 15483⤵
- Program crash
PID:1812 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 239983⤵
- Modifies registry class
- Suspicious use of FindShellTrayWindow
PID:2008
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\Ipoetwsuqhd.tmpFilesize
726KB
MD56ea8a6cc5fed6c664df1b3ef7c56b55d
SHA16b244d708706441095ae97294928967ddf28432b
SHA2562c7500ac5ebb0116e640747b8a5f0a2648f7d2f5f516ebb398b864cccc626fbe
SHA5124a328a66df407e4c9fa230287104771ea3b5dd8265d60314797426101a8be19d13bc57de2388f0f90b20ada82d950e156ef4267c029080a6254b80eefd8b8741
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\Users\Admin\AppData\Local\Temp\Ipoetwsuqhd.tmpFilesize
726KB
MD56ea8a6cc5fed6c664df1b3ef7c56b55d
SHA16b244d708706441095ae97294928967ddf28432b
SHA2562c7500ac5ebb0116e640747b8a5f0a2648f7d2f5f516ebb398b864cccc626fbe
SHA5124a328a66df407e4c9fa230287104771ea3b5dd8265d60314797426101a8be19d13bc57de2388f0f90b20ada82d950e156ef4267c029080a6254b80eefd8b8741
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memory/1236-68-0x0000000004980000-0x0000000004AC0000-memory.dmpFilesize
1.2MB
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memory/1236-74-0x0000000004980000-0x0000000004AC0000-memory.dmpFilesize
1.2MB
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memory/1236-81-0x0000000004250000-0x0000000004975000-memory.dmpFilesize
7.1MB
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memory/1236-69-0x0000000005310000-0x0000000005450000-memory.dmpFilesize
1.2MB
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memory/1236-56-0x0000000000000000-mapping.dmp
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memory/1236-72-0x0000000005310000-0x0000000005450000-memory.dmpFilesize
1.2MB
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memory/1236-63-0x0000000004250000-0x0000000004975000-memory.dmpFilesize
7.1MB
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memory/1236-65-0x0000000004250000-0x0000000004975000-memory.dmpFilesize
7.1MB
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memory/1236-66-0x0000000004250000-0x0000000004975000-memory.dmpFilesize
7.1MB
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memory/1236-67-0x0000000004980000-0x0000000004AC0000-memory.dmpFilesize
1.2MB
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memory/1236-82-0x0000000004250000-0x0000000004975000-memory.dmpFilesize
7.1MB
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memory/1236-73-0x0000000004980000-0x0000000004AC0000-memory.dmpFilesize
1.2MB
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memory/1292-55-0x0000000074FD1000-0x0000000074FD3000-memory.dmpFilesize
8KB
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memory/1292-57-0x0000000001D80000-0x0000000001E56000-memory.dmpFilesize
856KB
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memory/1292-60-0x0000000000400000-0x0000000000517000-memory.dmpFilesize
1.1MB
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memory/1292-58-0x0000000001EF0000-0x0000000002005000-memory.dmpFilesize
1.1MB
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memory/1292-54-0x0000000001D80000-0x0000000001E56000-memory.dmpFilesize
856KB
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memory/2008-80-0x0000000002000000-0x000000000222A000-memory.dmpFilesize
2.2MB
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memory/2008-70-0x0000000000220000-0x0000000000439000-memory.dmpFilesize
2.1MB
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memory/2008-75-0x00000000FF113CEC-mapping.dmp
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memory/2008-76-0x0000000001E30000-0x0000000001F70000-memory.dmpFilesize
1.2MB
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memory/2008-77-0x0000000001E30000-0x0000000001F70000-memory.dmpFilesize
1.2MB
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memory/2008-79-0x0000000000220000-0x0000000000439000-memory.dmpFilesize
2.1MB
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memory/2008-78-0x000007FEFB8F1000-0x000007FEFB8F3000-memory.dmpFilesize
8KB