Analysis
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max time kernel
150s -
max time network
143s -
platform
windows10-1703_x64 -
resource
win10-20220812-en -
resource tags
arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system -
submitted
28-01-2023 21:24
Static task
static1
General
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Target
576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe
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Size
4.1MB
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MD5
92a435db8e84533cab89757d7d03dfbf
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SHA1
800b8c936eb8e684180f6b7463d74eb707b92922
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SHA256
576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d
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SHA512
0de4d28099da95dee0015298ec2d8a933e7f5e953d2c836d513ab91fe61063f4d6572b16662b73ce339521000b7ed0b14dd713ca3b3c13c26ca0c8729fec459d
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SSDEEP
98304:LnA6Nzgkpu1YiCPL2q+9zfEuZBbp7RQjRY3d1bt1dYG4Xy1wK:LNNzC1YiCJ+xZxQjCY8
Malware Config
Signatures
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Processes:
576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe = "0" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe -
Executes dropped EXE 3 IoCs
Processes:
csrss.exeinjector.exef801950a962ddba14caaa44bf084b55c.exepid process 5060 csrss.exe 4980 injector.exe 400 f801950a962ddba14caaa44bf084b55c.exe -
Modifies Windows Firewall 1 TTPs 1 IoCs
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Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe upx C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe upx behavioral1/memory/400-434-0x0000000000400000-0x0000000000C25000-memory.dmp upx behavioral1/memory/400-462-0x0000000000400000-0x0000000000C25000-memory.dmp upx -
Processes:
576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe = "0" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
csrss.exe576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.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 2 IoCs
Processes:
576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exedescription ioc process File opened for modification C:\Windows\rss 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe File created C:\Windows\rss\csrss.exe 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Modifies data under HKEY_USERS 64 IoCs
Processes:
576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exenetsh.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Key created \REGISTRY\USER\.DEFAULT\System\CurrentControlSet netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Key created \REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Control\NetTrace netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exeinjector.execsrss.exepid process 2780 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe 2780 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe 4848 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe 4848 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe 4848 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe 4848 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe 4848 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe 4848 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe 4848 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe 4848 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe 4848 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe 4848 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 5060 csrss.exe 5060 csrss.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 5060 csrss.exe 5060 csrss.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe 4980 injector.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.execsrss.exedescription pid process Token: SeDebugPrivilege 2780 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Token: SeImpersonatePrivilege 2780 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe Token: SeSystemEnvironmentPrivilege 5060 csrss.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.execmd.execsrss.exedescription pid process target process PID 4848 wrote to memory of 4212 4848 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe cmd.exe PID 4848 wrote to memory of 4212 4848 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe cmd.exe PID 4212 wrote to memory of 4552 4212 cmd.exe netsh.exe PID 4212 wrote to memory of 4552 4212 cmd.exe netsh.exe PID 4848 wrote to memory of 5060 4848 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe csrss.exe PID 4848 wrote to memory of 5060 4848 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe csrss.exe PID 4848 wrote to memory of 5060 4848 576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe csrss.exe PID 5060 wrote to memory of 4980 5060 csrss.exe injector.exe PID 5060 wrote to memory of 4980 5060 csrss.exe injector.exe PID 5060 wrote to memory of 400 5060 csrss.exe f801950a962ddba14caaa44bf084b55c.exe PID 5060 wrote to memory of 400 5060 csrss.exe f801950a962ddba14caaa44bf084b55c.exe PID 5060 wrote to memory of 400 5060 csrss.exe f801950a962ddba14caaa44bf084b55c.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe"C:\Users\Admin\AppData\Local\Temp\576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe"C:\Users\Admin\AppData\Local\Temp\576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d.exe"2⤵
- Windows security bypass
- 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.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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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:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeC:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
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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\f801950a962ddba14caaa44bf084b55c.exeC:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe4⤵
- Executes dropped EXE
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn "csrss" /f5⤵
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn "ScheduledUpdate" /f5⤵
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\f801950a962ddba14caaa44bf084b55c.exeFilesize
3.2MB
MD5f801950a962ddba14caaa44bf084b55c
SHA17cadc9076121297428442785536ba0df2d4ae996
SHA256c3946ec89e15b24b743c46f9acacb58cff47da63f3ce2799d71ed90496b8891f
SHA5124183bc76bdc84fb779e2e573d9a63d7de47096b63b945f9e335bee95ae28eb208f5ee15f6501ac59623b97c5b77f3455ca313512e7d9803e1704ae22a52459c5
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C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exeFilesize
3.2MB
MD5f801950a962ddba14caaa44bf084b55c
SHA17cadc9076121297428442785536ba0df2d4ae996
SHA256c3946ec89e15b24b743c46f9acacb58cff47da63f3ce2799d71ed90496b8891f
SHA5124183bc76bdc84fb779e2e573d9a63d7de47096b63b945f9e335bee95ae28eb208f5ee15f6501ac59623b97c5b77f3455ca313512e7d9803e1704ae22a52459c5
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeFilesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeFilesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\rss\csrss.exeFilesize
4.1MB
MD592a435db8e84533cab89757d7d03dfbf
SHA1800b8c936eb8e684180f6b7463d74eb707b92922
SHA256576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d
SHA5120de4d28099da95dee0015298ec2d8a933e7f5e953d2c836d513ab91fe61063f4d6572b16662b73ce339521000b7ed0b14dd713ca3b3c13c26ca0c8729fec459d
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C:\Windows\rss\csrss.exeFilesize
4.1MB
MD592a435db8e84533cab89757d7d03dfbf
SHA1800b8c936eb8e684180f6b7463d74eb707b92922
SHA256576418be9239d3759e50af00dd24c637fab88ff2fae794818db3b8e76232945d
SHA5120de4d28099da95dee0015298ec2d8a933e7f5e953d2c836d513ab91fe61063f4d6572b16662b73ce339521000b7ed0b14dd713ca3b3c13c26ca0c8729fec459d
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memory/400-462-0x0000000000400000-0x0000000000C25000-memory.dmpFilesize
8.1MB
-
memory/400-434-0x0000000000400000-0x0000000000C25000-memory.dmpFilesize
8.1MB
-
memory/400-411-0x0000000000000000-mapping.dmp
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memory/2780-162-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-165-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-128-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-129-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-130-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-131-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-132-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-133-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-134-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-136-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-137-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-138-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-139-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-140-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-142-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-141-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-143-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-144-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-145-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-146-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-147-0x0000000002AC0000-0x0000000002EB1000-memory.dmpFilesize
3.9MB
-
memory/2780-148-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-149-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-150-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-151-0x0000000002EC0000-0x0000000003737000-memory.dmpFilesize
8.5MB
-
memory/2780-152-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-153-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
-
memory/2780-154-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-155-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-156-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-157-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-158-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-159-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-160-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-161-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-126-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-163-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-164-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-171-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-120-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-127-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-168-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-169-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-170-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-167-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-172-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-173-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-175-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-174-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-176-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-177-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-178-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-179-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-180-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-181-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-182-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-183-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-184-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-185-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-186-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-187-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-249-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
-
memory/2780-121-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-122-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-123-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-124-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-125-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/2780-166-0x0000000077710000-0x000000007789E000-memory.dmpFilesize
1.6MB
-
memory/4212-296-0x0000000000000000-mapping.dmp
-
memory/4552-299-0x0000000000000000-mapping.dmp
-
memory/4848-306-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
-
memory/4848-298-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/4848-297-0x0000000002A70000-0x0000000002E5E000-memory.dmpFilesize
3.9MB
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memory/4980-377-0x0000000000000000-mapping.dmp
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memory/5060-362-0x0000000003000000-0x00000000033EA000-memory.dmpFilesize
3.9MB
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memory/5060-364-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/5060-383-0x0000000003000000-0x00000000033EA000-memory.dmpFilesize
3.9MB
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memory/5060-384-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/5060-451-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/5060-301-0x0000000000000000-mapping.dmp