Analysis
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max time kernel
150s -
max time network
142s -
platform
windows10-1703_x64 -
resource
win10-20220812-en -
resource tags
arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system -
submitted
29-01-2023 09:20
Static task
static1
General
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Target
4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe
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Size
4.1MB
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MD5
522a3e58d40167b660bd82a23aa1ed1a
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SHA1
66c04c887affbb97918b28ceece36197508a7f45
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SHA256
4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b
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SHA512
f600c248b77327d387fe7ed4bfb6ce3b0b280f341bec4be03ec85fba7a7f2fd29fa54f36523a2ae2cc89a954955524e4d82ba7149027f91846ebbdfe8d0cf41e
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SSDEEP
98304:SCVIR5EcZ0HiqrPbayKgjuvn3vJf/QQ6tiiCH5rcMnIYSBgSPY/BL5mR3S:TS0iqrTPEvpYbi5r7ndSBgSgpsc
Malware Config
Signatures
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Processes:
4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe = "0" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe -
Executes dropped EXE 2 IoCs
Processes:
csrss.exeinjector.exepid process 3800 csrss.exe 2052 injector.exe -
Modifies Windows Firewall 1 TTPs 1 IoCs
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Processes:
4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe = "0" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3844063266-715245855-4050956231-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\S-1-5-21-3844063266-715245855-4050956231-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.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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Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Drops file in Windows directory 2 IoCs
Processes:
4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exedescription ioc process File opened for modification C:\Windows\rss 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe File created C:\Windows\rss\csrss.exe 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.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 1156 schtasks.exe 3076 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exenetsh.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Key created \REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Control netsh.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.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" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exeinjector.execsrss.exepid process 2972 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe 2972 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe 976 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe 976 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe 976 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe 976 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe 976 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe 976 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe 976 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe 976 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe 976 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe 976 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 3800 csrss.exe 3800 csrss.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 3800 csrss.exe 3800 csrss.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe 2052 injector.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.execsrss.exedescription pid process Token: SeDebugPrivilege 2972 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Token: SeImpersonatePrivilege 2972 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe Token: SeSystemEnvironmentPrivilege 3800 csrss.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.execmd.execsrss.exedescription pid process target process PID 976 wrote to memory of 3204 976 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe cmd.exe PID 976 wrote to memory of 3204 976 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe cmd.exe PID 3204 wrote to memory of 2924 3204 cmd.exe netsh.exe PID 3204 wrote to memory of 2924 3204 cmd.exe netsh.exe PID 976 wrote to memory of 3800 976 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe csrss.exe PID 976 wrote to memory of 3800 976 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe csrss.exe PID 976 wrote to memory of 3800 976 4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe csrss.exe PID 3800 wrote to memory of 2052 3800 csrss.exe injector.exe PID 3800 wrote to memory of 2052 3800 csrss.exe injector.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe"C:\Users\Admin\AppData\Local\Temp\4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.exe"C:\Users\Admin\AppData\Local\Temp\4aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b.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
- Modifies data under HKEY_USERS
- 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)
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\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
MD5522a3e58d40167b660bd82a23aa1ed1a
SHA166c04c887affbb97918b28ceece36197508a7f45
SHA2564aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b
SHA512f600c248b77327d387fe7ed4bfb6ce3b0b280f341bec4be03ec85fba7a7f2fd29fa54f36523a2ae2cc89a954955524e4d82ba7149027f91846ebbdfe8d0cf41e
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C:\Windows\rss\csrss.exeFilesize
4.1MB
MD5522a3e58d40167b660bd82a23aa1ed1a
SHA166c04c887affbb97918b28ceece36197508a7f45
SHA2564aece9310f17cd1f91a203dcf05b93b798f4e286f436bd8aea3b38d8d170d50b
SHA512f600c248b77327d387fe7ed4bfb6ce3b0b280f341bec4be03ec85fba7a7f2fd29fa54f36523a2ae2cc89a954955524e4d82ba7149027f91846ebbdfe8d0cf41e
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memory/976-266-0x0000000002A90000-0x0000000002E7C000-memory.dmpFilesize
3.9MB
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memory/976-270-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/976-305-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/2052-365-0x0000000000000000-mapping.dmp
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memory/2924-297-0x0000000000000000-mapping.dmp
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memory/2972-156-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-120-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-124-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-125-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-126-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-127-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-128-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-129-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-130-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-131-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-132-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-134-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-135-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-136-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-137-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-159-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-139-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-140-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-142-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-143-0x0000000002B70000-0x0000000002F67000-memory.dmpFilesize
4.0MB
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memory/2972-141-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-144-0x0000000002F70000-0x00000000037E7000-memory.dmpFilesize
8.5MB
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memory/2972-145-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-146-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-147-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-148-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-149-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-150-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/2972-151-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-152-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-153-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-154-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-155-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-122-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-157-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-158-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-138-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-123-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-174-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-162-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-163-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-164-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-165-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-166-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-168-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-169-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-167-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-171-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-172-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-161-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-176-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-178-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-179-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-181-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-184-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-185-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-183-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-182-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-180-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-177-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-175-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-173-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-170-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-250-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/2972-121-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-118-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-119-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/2972-160-0x0000000077220000-0x00000000773AE000-memory.dmpFilesize
1.6MB
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memory/3204-296-0x0000000000000000-mapping.dmp
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memory/3800-322-0x00000000032F0000-0x0000000003B67000-memory.dmpFilesize
8.5MB
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memory/3800-335-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/3800-364-0x0000000002F00000-0x00000000032EA000-memory.dmpFilesize
3.9MB
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memory/3800-321-0x0000000002F00000-0x00000000032EA000-memory.dmpFilesize
3.9MB
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memory/3800-299-0x0000000000000000-mapping.dmp
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memory/3800-380-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB