Analysis
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max time kernel
151s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
07-06-2023 19:48
Static task
static1
General
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Target
f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe
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Size
4.2MB
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MD5
3ecfb1c42ed4a76062a503b6010e8378
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SHA1
d6484ad8b903631d14c6f892770c8d0268cb9f3d
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SHA256
f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae
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SHA512
3abe53d614c45757d689f48051db157ee15c647aab99ddcd585e1749fbd143b1438a1801587103053a25cc5651a491d762029cd7e379c7a32dbcc8553b126c0b
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SSDEEP
98304:N7xlQWUQJrx/VpUx5jTm4qCa4aWdF3j0chnIX4rRT:Bxqd9YP+rjRfVT
Malware Config
Signatures
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Glupteba payload 16 IoCs
Processes:
resource yara_rule behavioral1/memory/1468-134-0x0000000004DE0000-0x00000000056CB000-memory.dmp family_glupteba behavioral1/memory/1468-173-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba behavioral1/memory/1468-206-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba behavioral1/memory/1076-220-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba behavioral1/memory/1076-265-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba behavioral1/memory/2952-307-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba behavioral1/memory/2952-354-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba behavioral1/memory/2952-356-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba behavioral1/memory/2952-358-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba behavioral1/memory/2952-360-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba behavioral1/memory/2952-362-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba behavioral1/memory/2952-364-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba behavioral1/memory/2952-366-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba behavioral1/memory/2952-368-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba behavioral1/memory/2952-370-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba behavioral1/memory/2952-372-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba -
Modifies Windows Firewall 1 TTPs 1 IoCs
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Executes dropped EXE 2 IoCs
Processes:
csrss.exeinjector.exepid process 2952 csrss.exe 3796 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe Set value (str) \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\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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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
Processes:
csrss.exedescription ioc process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
Processes:
f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe -
Drops file in Windows directory 2 IoCs
Processes:
f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exedescription ioc process File opened for modification C:\Windows\rss f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe File created C:\Windows\rss\csrss.exe f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.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 1984 schtasks.exe 3224 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time" f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time" f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time" f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time" f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.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" f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exef1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exepowershell.exef1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 2840 powershell.exe 2840 powershell.exe 1468 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe 1468 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe 1112 powershell.exe 1112 powershell.exe 1076 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe 1076 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe 1076 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe 1076 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe 1076 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe 1076 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe 1076 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe 1076 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe 1076 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe 1076 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe 1212 powershell.exe 1212 powershell.exe 4796 powershell.exe 4796 powershell.exe 64 powershell.exe 64 powershell.exe 1128 powershell.exe 1128 powershell.exe 1348 powershell.exe 1348 powershell.exe 3796 injector.exe 3796 injector.exe 3796 injector.exe 3796 injector.exe 3796 injector.exe 3796 injector.exe 3796 injector.exe 3796 injector.exe 2952 csrss.exe 2952 csrss.exe 3796 injector.exe 3796 injector.exe 3796 injector.exe 3796 injector.exe 3796 injector.exe 3796 injector.exe 2952 csrss.exe 2952 csrss.exe 3796 injector.exe 3796 injector.exe 3796 injector.exe 3796 injector.exe 3796 injector.exe 3796 injector.exe 3796 injector.exe 3796 injector.exe 3796 injector.exe 3796 injector.exe 3796 injector.exe 3796 injector.exe 3796 injector.exe 3796 injector.exe 3796 injector.exe 3796 injector.exe 3796 injector.exe 3796 injector.exe 3796 injector.exe 3796 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
Processes:
powershell.exef1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exedescription pid process Token: SeDebugPrivilege 2840 powershell.exe Token: SeDebugPrivilege 1468 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe Token: SeImpersonatePrivilege 1468 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe Token: SeDebugPrivilege 1112 powershell.exe Token: SeDebugPrivilege 1212 powershell.exe Token: SeDebugPrivilege 4796 powershell.exe Token: SeDebugPrivilege 64 powershell.exe Token: SeDebugPrivilege 1128 powershell.exe Token: SeDebugPrivilege 1348 powershell.exe Token: SeSystemEnvironmentPrivilege 2952 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exef1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.execmd.execsrss.exedescription pid process target process PID 1468 wrote to memory of 2840 1468 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe powershell.exe PID 1468 wrote to memory of 2840 1468 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe powershell.exe PID 1468 wrote to memory of 2840 1468 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe powershell.exe PID 1076 wrote to memory of 1112 1076 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe powershell.exe PID 1076 wrote to memory of 1112 1076 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe powershell.exe PID 1076 wrote to memory of 1112 1076 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe powershell.exe PID 1076 wrote to memory of 3764 1076 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe cmd.exe PID 1076 wrote to memory of 3764 1076 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe cmd.exe PID 3764 wrote to memory of 3184 3764 cmd.exe netsh.exe PID 3764 wrote to memory of 3184 3764 cmd.exe netsh.exe PID 1076 wrote to memory of 1212 1076 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe powershell.exe PID 1076 wrote to memory of 1212 1076 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe powershell.exe PID 1076 wrote to memory of 1212 1076 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe powershell.exe PID 1076 wrote to memory of 4796 1076 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe powershell.exe PID 1076 wrote to memory of 4796 1076 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe powershell.exe PID 1076 wrote to memory of 4796 1076 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe powershell.exe PID 1076 wrote to memory of 2952 1076 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe csrss.exe PID 1076 wrote to memory of 2952 1076 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe csrss.exe PID 1076 wrote to memory of 2952 1076 f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe csrss.exe PID 2952 wrote to memory of 64 2952 csrss.exe powershell.exe PID 2952 wrote to memory of 64 2952 csrss.exe powershell.exe PID 2952 wrote to memory of 64 2952 csrss.exe powershell.exe PID 2952 wrote to memory of 1128 2952 csrss.exe powershell.exe PID 2952 wrote to memory of 1128 2952 csrss.exe powershell.exe PID 2952 wrote to memory of 1128 2952 csrss.exe powershell.exe PID 2952 wrote to memory of 1348 2952 csrss.exe powershell.exe PID 2952 wrote to memory of 1348 2952 csrss.exe powershell.exe PID 2952 wrote to memory of 1348 2952 csrss.exe powershell.exe PID 2952 wrote to memory of 3796 2952 csrss.exe injector.exe PID 2952 wrote to memory of 3796 2952 csrss.exe injector.exe -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe"C:\Users\Admin\AppData\Local\Temp\f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe"C:\Users\Admin\AppData\Local\Temp\f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae.exe"2⤵
- Adds Run key to start application
- Checks for VirtualBox DLLs, possible anti-VM trick
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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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
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- Manipulates WinMonFS driver.
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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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:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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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\__PSScriptPolicyTest_squzoawe.spw.ps1Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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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\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.logFilesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-InteractiveFilesize
19KB
MD5d2aa712740978d423fe7228432c9af2e
SHA1200971a04182e0069747a13c84eea6aed562241c
SHA256e4bef995ac7176aa1b569fd6675a0356c04904fa244d94f32a205e5b68422223
SHA512f20680b1d7c0f77943b9ea305c72942b9cc0429fb956038c8cf310233cc18c4485b01715a60a8aadba984c124b57373afbdf5cfbeb0e251f3f47b4689b516cbe
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-InteractiveFilesize
19KB
MD5bf23306b1ff7f40dae072e8395a1a473
SHA1997c99b895894f7cf60adfbcd0ecc2bd78b29114
SHA25625afe46dd78d7b202ebca30cea50bfc14521e78b1130f7460a148f27acb21b9c
SHA512d3d5c917d1cfe7d0a06f3919f475d81a3cef86c70bb594d3ea8f86538482cd13fb52312a506745cb24a0d7addf97ec6cb115c31a3909bd6cca0980bbb27017b9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-InteractiveFilesize
19KB
MD56f69e1687653961189fcbca54b7b8d0c
SHA1738b0c7583963f86f9ba548dae357bb735094d39
SHA256323d107cdb4658237e3679c7fbb50f2f603641bc7786bf704d46fba0ad589879
SHA51260b7fd5d088ef715dffc31c27b028c5854671e59926d9bde7a016fa5181a1e9a5ca841049159faa9367a613904ee11b1d7220edb3452f2095adb4c45b4e0b58e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-InteractiveFilesize
19KB
MD5f000685fcad1d0af3e5839cbd0c8e201
SHA1d0ad9637cdad78a53cb3150e195cde6f464ab75b
SHA256c605b3021bc8e4afe270d9063bab0e57d57140e3a383545f0c1823b20a176327
SHA512a395cf181a79275dcf6a9add602f63090c496fd085238150ccf5732cc71878c07f3806c228502a92a3f5026ce4bb3ade572f869cd3ecf481664731c3b3b78c9a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-InteractiveFilesize
19KB
MD5e33655cdf8a3a1572ffdd07798d7aab3
SHA1ec4110f1731f6f3ddd70834f481e6127bc3fd947
SHA2565fa9e3759ad3d399d3b561e4397411bb71b38cc5814a23c8d5b079a19ae052e1
SHA5122730b4e9453eaa721d9fea2e25802049f38ca7332428eaa72d5626a6662b9d925c92a8f63b3c12cbfee5fe2a7031ee462f13cec544318c41f29fb4a08286d41f
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C:\Windows\rss\csrss.exeFilesize
4.2MB
MD53ecfb1c42ed4a76062a503b6010e8378
SHA1d6484ad8b903631d14c6f892770c8d0268cb9f3d
SHA256f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae
SHA5123abe53d614c45757d689f48051db157ee15c647aab99ddcd585e1749fbd143b1438a1801587103053a25cc5651a491d762029cd7e379c7a32dbcc8553b126c0b
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C:\Windows\rss\csrss.exeFilesize
4.2MB
MD53ecfb1c42ed4a76062a503b6010e8378
SHA1d6484ad8b903631d14c6f892770c8d0268cb9f3d
SHA256f1d96315e349f925324e2dafc8d79c62f5452c1bff6f2bad6410c515399982ae
SHA5123abe53d614c45757d689f48051db157ee15c647aab99ddcd585e1749fbd143b1438a1801587103053a25cc5651a491d762029cd7e379c7a32dbcc8553b126c0b
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memory/64-268-0x00000000045B0000-0x00000000045C0000-memory.dmpFilesize
64KB
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memory/64-291-0x00000000045B0000-0x00000000045C0000-memory.dmpFilesize
64KB
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memory/64-280-0x0000000070400000-0x000000007044C000-memory.dmpFilesize
304KB
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memory/64-281-0x0000000070B40000-0x0000000070E94000-memory.dmpFilesize
3.3MB
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memory/64-269-0x00000000045B0000-0x00000000045C0000-memory.dmpFilesize
64KB
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memory/64-292-0x000000007FC90000-0x000000007FCA0000-memory.dmpFilesize
64KB
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memory/1076-220-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/1076-265-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/1112-191-0x0000000000D00000-0x0000000000D10000-memory.dmpFilesize
64KB
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memory/1112-192-0x0000000070400000-0x000000007044C000-memory.dmpFilesize
304KB
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memory/1112-190-0x0000000000D00000-0x0000000000D10000-memory.dmpFilesize
64KB
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memory/1112-193-0x0000000070B80000-0x0000000070ED4000-memory.dmpFilesize
3.3MB
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memory/1112-189-0x0000000000D00000-0x0000000000D10000-memory.dmpFilesize
64KB
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memory/1112-203-0x000000007F7C0000-0x000000007F7D0000-memory.dmpFilesize
64KB
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memory/1128-320-0x000000007F520000-0x000000007F530000-memory.dmpFilesize
64KB
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memory/1128-309-0x0000000070AB0000-0x0000000070E04000-memory.dmpFilesize
3.3MB
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memory/1128-319-0x0000000005280000-0x0000000005290000-memory.dmpFilesize
64KB
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memory/1128-300-0x0000000005280000-0x0000000005290000-memory.dmpFilesize
64KB
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memory/1128-305-0x0000000005280000-0x0000000005290000-memory.dmpFilesize
64KB
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memory/1128-308-0x0000000070320000-0x000000007036C000-memory.dmpFilesize
304KB
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memory/1212-219-0x0000000004CF0000-0x0000000004D00000-memory.dmpFilesize
64KB
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memory/1212-222-0x00000000705A0000-0x00000000708F4000-memory.dmpFilesize
3.3MB
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memory/1212-233-0x000000007F120000-0x000000007F130000-memory.dmpFilesize
64KB
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memory/1212-232-0x0000000004CF0000-0x0000000004D00000-memory.dmpFilesize
64KB
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memory/1212-218-0x0000000004CF0000-0x0000000004D00000-memory.dmpFilesize
64KB
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memory/1212-221-0x0000000070400000-0x000000007044C000-memory.dmpFilesize
304KB
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memory/1348-323-0x0000000002EB0000-0x0000000002EC0000-memory.dmpFilesize
64KB
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memory/1348-322-0x0000000002EB0000-0x0000000002EC0000-memory.dmpFilesize
64KB
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memory/1348-334-0x0000000002EB0000-0x0000000002EC0000-memory.dmpFilesize
64KB
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memory/1348-335-0x0000000070320000-0x000000007036C000-memory.dmpFilesize
304KB
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memory/1348-336-0x00000000704D0000-0x0000000070824000-memory.dmpFilesize
3.3MB
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memory/1348-346-0x000000007FA10000-0x000000007FA20000-memory.dmpFilesize
64KB
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memory/1468-173-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/1468-206-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/1468-134-0x0000000004DE0000-0x00000000056CB000-memory.dmpFilesize
8.9MB
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memory/2840-171-0x000000007F0B0000-0x000000007F0C0000-memory.dmpFilesize
64KB
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memory/2840-153-0x0000000007520000-0x0000000007596000-memory.dmpFilesize
472KB
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memory/2840-135-0x0000000002E50000-0x0000000002E86000-memory.dmpFilesize
216KB
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memory/2840-136-0x0000000005570000-0x0000000005B98000-memory.dmpFilesize
6.2MB
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memory/2840-137-0x0000000002E40000-0x0000000002E50000-memory.dmpFilesize
64KB
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memory/2840-138-0x0000000002E40000-0x0000000002E50000-memory.dmpFilesize
64KB
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memory/2840-139-0x0000000005420000-0x0000000005442000-memory.dmpFilesize
136KB
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memory/2840-176-0x0000000007B60000-0x0000000007B68000-memory.dmpFilesize
32KB
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memory/2840-175-0x0000000007C10000-0x0000000007C2A000-memory.dmpFilesize
104KB
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memory/2840-174-0x0000000007B20000-0x0000000007B2E000-memory.dmpFilesize
56KB
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memory/2840-172-0x0000000007B70000-0x0000000007C06000-memory.dmpFilesize
600KB
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memory/2840-170-0x0000000007AB0000-0x0000000007ABA000-memory.dmpFilesize
40KB
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memory/2840-169-0x0000000007960000-0x000000000797E000-memory.dmpFilesize
120KB
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memory/2840-159-0x0000000070580000-0x00000000708D4000-memory.dmpFilesize
3.3MB
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memory/2840-158-0x0000000070400000-0x000000007044C000-memory.dmpFilesize
304KB
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memory/2840-157-0x0000000007980000-0x00000000079B2000-memory.dmpFilesize
200KB
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memory/2840-156-0x00000000077C0000-0x00000000077DA000-memory.dmpFilesize
104KB
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memory/2840-155-0x0000000007E20000-0x000000000849A000-memory.dmpFilesize
6.5MB
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memory/2840-140-0x00000000054C0000-0x0000000005526000-memory.dmpFilesize
408KB
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memory/2840-141-0x0000000005D10000-0x0000000005D76000-memory.dmpFilesize
408KB
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memory/2840-154-0x0000000002E40000-0x0000000002E50000-memory.dmpFilesize
64KB
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memory/2840-152-0x0000000006970000-0x00000000069B4000-memory.dmpFilesize
272KB
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memory/2840-151-0x0000000006410000-0x000000000642E000-memory.dmpFilesize
120KB
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memory/2952-364-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/2952-362-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/2952-356-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/2952-372-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/2952-358-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/2952-307-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/2952-370-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/2952-360-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/2952-368-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/2952-366-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/2952-354-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/4796-248-0x0000000070B80000-0x0000000070ED4000-memory.dmpFilesize
3.3MB
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memory/4796-259-0x000000007F6C0000-0x000000007F6D0000-memory.dmpFilesize
64KB
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memory/4796-247-0x0000000070400000-0x000000007044C000-memory.dmpFilesize
304KB
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memory/4796-235-0x0000000004980000-0x0000000004990000-memory.dmpFilesize
64KB
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memory/4796-258-0x0000000004980000-0x0000000004990000-memory.dmpFilesize
64KB
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memory/4796-241-0x0000000004980000-0x0000000004990000-memory.dmpFilesize
64KB