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Analysis
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max time kernel
150s -
max time network
130s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
25/04/2024, 12:45
Static task
static1
Behavioral task
behavioral1
Sample
31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe
Resource
win10v2004-20240226-en
General
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Target
31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe
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Size
4.2MB
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MD5
cc717fe365bb3a5b4fe4c68e9e61fb5a
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SHA1
1ee335bc2c1d3be1e3352037be3cbbdcd7a47fbe
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SHA256
31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188
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SHA512
d47a956a9ec7f2f46d5e89755729bf5f2419d0823d574683839daf3f8bd0921c1f4cdabb216c177da1ea62fec9895d793614781be0cb4d143896690fe720e5e9
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SSDEEP
98304:xlPNnLMcliXgk6mZUGEiVLqbbhuqLV4AlEjP7K:xlP9LMc0wkDbEiV0LVI2
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/8-2-0x0000000005190000-0x0000000005A7B000-memory.dmp family_glupteba behavioral2/memory/8-3-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/8-51-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/8-53-0x0000000005190000-0x0000000005A7B000-memory.dmp family_glupteba behavioral2/memory/988-55-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/988-89-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/988-113-0x00000000036D0000-0x0000000003AD4000-memory.dmp family_glupteba behavioral2/memory/988-139-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/988-149-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/2428-183-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/2428-245-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/2428-254-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/2428-256-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/2428-258-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/2428-260-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/2428-262-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/2428-264-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/2428-266-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba behavioral2/memory/2428-268-0x0000000000400000-0x000000000300B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3936 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2428 csrss.exe 1800 injector.exe 436 windefender.exe 4208 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9ae-251.dat upx behavioral2/memory/436-252-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4208-255-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4208-259-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-834482027-582050234-2368284635-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Set value (str) \REGISTRY\USER\S-1-5-21-834482027-582050234-2368284635-1000\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.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description 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.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe File created C:\Windows\rss\csrss.exe 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 4424 sc.exe -
Program crash 6 IoCs
pid pid_target Process procid_target 1492 8 WerFault.exe 79 3044 8 WerFault.exe 79 2148 8 WerFault.exe 79 1452 988 WerFault.exe 87 3380 988 WerFault.exe 87 2368 988 WerFault.exe 87 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1012 schtasks.exe 2720 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2371 = "Easter Island Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-3051 = "Qyzylorda Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople 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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-112 = "Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-561 = "SE Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.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\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-32 = "Mid-Atlantic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-601 = "Taipei Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-411 = "E. Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-384 = "Namibia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-371 = "Jerusalem Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-31 = "Mid-Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2871 = "Magallanes Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2592 = "Tocantins Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-402 = "Arabic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-132 = "US Eastern Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time" 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4112 powershell.exe 4112 powershell.exe 8 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe 8 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe 2152 powershell.exe 2152 powershell.exe 988 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe 988 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe 988 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe 988 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe 988 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe 988 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe 988 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe 988 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe 988 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe 988 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe 2992 powershell.exe 2992 powershell.exe 3060 powershell.exe 3060 powershell.exe 3464 powershell.exe 3464 powershell.exe 2900 powershell.exe 2900 powershell.exe 4372 powershell.exe 4372 powershell.exe 1800 injector.exe 1800 injector.exe 1800 injector.exe 1800 injector.exe 1800 injector.exe 1800 injector.exe 2428 csrss.exe 2428 csrss.exe 1800 injector.exe 1800 injector.exe 1800 injector.exe 1800 injector.exe 1800 injector.exe 1800 injector.exe 2428 csrss.exe 2428 csrss.exe 1800 injector.exe 1800 injector.exe 1800 injector.exe 1800 injector.exe 1800 injector.exe 1800 injector.exe 1800 injector.exe 1800 injector.exe 2428 csrss.exe 2428 csrss.exe 1800 injector.exe 1800 injector.exe 1800 injector.exe 1800 injector.exe 1800 injector.exe 1800 injector.exe 1800 injector.exe 1800 injector.exe 1800 injector.exe 1800 injector.exe 1800 injector.exe 1800 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4112 powershell.exe Token: SeDebugPrivilege 8 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Token: SeImpersonatePrivilege 8 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe Token: SeDebugPrivilege 2152 powershell.exe Token: SeDebugPrivilege 2992 powershell.exe Token: SeDebugPrivilege 3060 powershell.exe Token: SeDebugPrivilege 3464 powershell.exe Token: SeDebugPrivilege 2900 powershell.exe Token: SeDebugPrivilege 4372 powershell.exe Token: SeSystemEnvironmentPrivilege 2428 csrss.exe Token: SeSecurityPrivilege 4424 sc.exe Token: SeSecurityPrivilege 4424 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 8 wrote to memory of 4112 8 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe 83 PID 8 wrote to memory of 4112 8 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe 83 PID 8 wrote to memory of 4112 8 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe 83 PID 988 wrote to memory of 2152 988 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe 95 PID 988 wrote to memory of 2152 988 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe 95 PID 988 wrote to memory of 2152 988 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe 95 PID 988 wrote to memory of 3660 988 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe 97 PID 988 wrote to memory of 3660 988 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe 97 PID 3660 wrote to memory of 3936 3660 cmd.exe 99 PID 3660 wrote to memory of 3936 3660 cmd.exe 99 PID 988 wrote to memory of 2992 988 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe 100 PID 988 wrote to memory of 2992 988 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe 100 PID 988 wrote to memory of 2992 988 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe 100 PID 988 wrote to memory of 3060 988 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe 102 PID 988 wrote to memory of 3060 988 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe 102 PID 988 wrote to memory of 3060 988 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe 102 PID 988 wrote to memory of 2428 988 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe 104 PID 988 wrote to memory of 2428 988 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe 104 PID 988 wrote to memory of 2428 988 31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe 104 PID 2428 wrote to memory of 3464 2428 csrss.exe 111 PID 2428 wrote to memory of 3464 2428 csrss.exe 111 PID 2428 wrote to memory of 3464 2428 csrss.exe 111 PID 2428 wrote to memory of 2900 2428 csrss.exe 116 PID 2428 wrote to memory of 2900 2428 csrss.exe 116 PID 2428 wrote to memory of 2900 2428 csrss.exe 116 PID 2428 wrote to memory of 4372 2428 csrss.exe 119 PID 2428 wrote to memory of 4372 2428 csrss.exe 119 PID 2428 wrote to memory of 4372 2428 csrss.exe 119 PID 2428 wrote to memory of 1800 2428 csrss.exe 121 PID 2428 wrote to memory of 1800 2428 csrss.exe 121 PID 436 wrote to memory of 1036 436 windefender.exe 127 PID 436 wrote to memory of 1036 436 windefender.exe 127 PID 436 wrote to memory of 1036 436 windefender.exe 127 PID 1036 wrote to memory of 4424 1036 cmd.exe 128 PID 1036 wrote to memory of 4424 1036 cmd.exe 128 PID 1036 wrote to memory of 4424 1036 cmd.exe 128 -
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\31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe"C:\Users\Admin\AppData\Local\Temp\31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:8 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4112
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C:\Users\Admin\AppData\Local\Temp\31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.exe"C:\Users\Admin\AppData\Local\Temp\31b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188.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
PID:988 -
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
PID:2152
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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
PID:3660 -
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
PID:3936
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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
PID:2992
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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
PID:3060
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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.
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2428 -
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
PID:3464
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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)
PID:1012
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2940
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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
PID:2900
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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
PID:4372
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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
PID:1800
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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)
PID:2720
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:436 -
C:\Windows\SysWOW64\cmd.execmd.exe /C sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)5⤵
- Suspicious use of WriteProcessMemory
PID:1036 -
C:\Windows\SysWOW64\sc.exesc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)6⤵
- Launches sc.exe
- Suspicious use of AdjustPrivilegeToken
PID:4424
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 988 -s 8843⤵
- Program crash
PID:1452
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 988 -s 7363⤵
- Program crash
PID:3380
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 988 -s 6203⤵
- Program crash
PID:2368
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 8 -s 7642⤵
- Program crash
PID:1492
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 8 -s 6722⤵
- Program crash
PID:3044
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 8 -s 9322⤵
- Program crash
PID:2148
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 8 -ip 81⤵PID:3276
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 8 -ip 81⤵PID:3148
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 8 -ip 81⤵PID:1948
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 988 -ip 9881⤵PID:3556
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 988 -ip 9881⤵PID:2756
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 988 -ip 9881⤵PID:1356
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4208
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53e264d0060b0914bfce940912c360a4b
SHA1c86c8c1dcf92bc185e706b41377e401e7e5b0206
SHA256703e50fbf586e17a790fb11ce8499005e4526c1d40a56bc27408fb323cfafc39
SHA5127376569934ac26309f771dad310611f3718ed6bd6d5310b020ae0b6363ea9c744ee6736135639311fe7370a8eb02169ef9d857b27bbdbe86c7455122c84006c6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54e782d446a0da6a2655de84155ea8dee
SHA130e9e5ade517a41b7da710fd783fcad845a9fa81
SHA25693b32345070760f402f3231028fb5b2e2a691e8417c335920f12ca3436eb88ea
SHA512a3698a8b9ec9cc154865de623d3c40bccba69e195dd30007803972789c75b461f812b4a856eeec0141c1300ddc953080cd3047d59dbb3832913983b7d3e0dbf0
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f469e6b21612ba4b7c52d663d421a390
SHA1bfe1c4f51e724a77ab392ef3320869f1f3deffd5
SHA2567e7810cb1e3a3f019a01800089a3340046c2d8379f25da1c9598d44ee1d43679
SHA512637eb7c8bbcfa3624942cc5f31210eccba6c9ad157545badd624035993cbf3389956d952346442255610cc151ac86d51c8b629e7f77f39882355e5d667739efb
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5aeb03610f420944c0d53d16c66f9a4c0
SHA11c7395a455440c3184b60e4a321882a7a282df3c
SHA256f7f82797732c3238087aecb21a094fb35950e769e52624f6cb779f1fe18f0bd9
SHA512cd21919929f790db871f96ab32f02094e216050e412150e237b7fc539898b8c3fa5dea2b3899c1e2b0a9c18c8714e827877681b9a736615f19304a5070f45153
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52698d7df8740a94c8cb118f6cbbb76d8
SHA1852b289caa44370ee8e42e348894bd0bb6546917
SHA256bb1e53dd8aae432cad1435ec06bebc283fac3ba50e8dd42ce5798631a94984f4
SHA5126aafafbbb419ecc05c0dc80995057ad99b7d012ad6deaaf5ca21f8dfca49005c9e5820f2914e2d3e4d5f0cbcef9e5d89b2aacbf22e178b1bc043d57e90872b52
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Filesize
4.2MB
MD5cc717fe365bb3a5b4fe4c68e9e61fb5a
SHA11ee335bc2c1d3be1e3352037be3cbbdcd7a47fbe
SHA25631b85a2487c54ef09ebe2da98c60f69d1fa8c3495c8faf1f1da75e0b48cbe188
SHA512d47a956a9ec7f2f46d5e89755729bf5f2419d0823d574683839daf3f8bd0921c1f4cdabb216c177da1ea62fec9895d793614781be0cb4d143896690fe720e5e9
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec