Analysis
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max time kernel
150s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
16-05-2024 09:50
Static task
static1
Behavioral task
behavioral1
Sample
f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe
Resource
win10v2004-20240426-en
General
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Target
f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe
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Size
4.1MB
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MD5
fb9cf7d877427716649a6c00c39b4e03
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SHA1
1a8bc5e39e9160e0549bd4481a274c98f3d3feef
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SHA256
f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7
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SHA512
2cb21c3ba7cb9ae84e21db719b5054e43d3fe264922fdddbc095e1f6f4a809aab504b1e2837b93150cd3bdd545355fb090031ab43b2ee6b8ac27792594053ae4
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SSDEEP
98304:9H49zrfgobu9aDMWAg4dPDb/NQHvakIF/A8L3rqLZk5t2qZ3qL2LAZ50:Ur7OagDbOPW/F2k5tRZaLrS
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral1/memory/4000-2-0x0000000002DA0000-0x000000000368B000-memory.dmp family_glupteba behavioral1/memory/4000-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4000-55-0x0000000002DA0000-0x000000000368B000-memory.dmp family_glupteba behavioral1/memory/4000-54-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1676-58-0x0000000002D40000-0x000000000362B000-memory.dmp family_glupteba behavioral1/memory/1676-136-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2012-221-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2012-230-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2012-231-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2012-234-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2012-236-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2012-238-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2012-239-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2012-241-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2012-244-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2012-246-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2012-247-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2012-249-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2012-252-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 2400 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 2012 csrss.exe 3356 injector.exe 2460 windefender.exe 4124 windefender.exe -
Processes:
resource yara_rule behavioral1/files/0x0008000000023405-224.dat upx behavioral1/memory/2460-225-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/2460-229-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4124-228-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4124-232-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4124-235-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\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 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 -
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:
f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe -
Drops file in Windows directory 4 IoCs
Processes:
f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe File created C:\Windows\rss\csrss.exe f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.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.
Processes:
sc.exepid Process 3700 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 4612 powershell.exe 3728 powershell.exe 2520 powershell.exe 2036 powershell.exe 1748 powershell.exe 3964 powershell.exe 668 powershell.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 4628 schtasks.exe 1768 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exepowershell.exepowershell.exewindefender.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2431 = "Cuba Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-982 = "Kamchatka Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1832 = "Russia TZ 2 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\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\2a\52C64B7E\@tzres.dll,-442 = "Arabian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-448 = "Azerbaijan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-141 = "Canada Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-291 = "Central European Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-262 = "GMT Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3051 = "Qyzylorda Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2451 = "Saint Pierre Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2141 = "Transbaikal Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2592 = "Tocantins Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-792 = "SA Western Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2322 = "Sakhalin Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.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 (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-112 = "Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-122 = "SA Pacific Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2342 = "Haiti Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3052 = "Qyzylorda Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-791 = "SA Western Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exef435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exepowershell.exef435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 2036 powershell.exe 2036 powershell.exe 4000 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 4000 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 1748 powershell.exe 1748 powershell.exe 1748 powershell.exe 1676 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 1676 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 1676 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 1676 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 1676 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 1676 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 1676 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 1676 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 1676 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 1676 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 3964 powershell.exe 3964 powershell.exe 3964 powershell.exe 668 powershell.exe 668 powershell.exe 668 powershell.exe 4612 powershell.exe 4612 powershell.exe 3728 powershell.exe 3728 powershell.exe 2520 powershell.exe 2520 powershell.exe 3356 injector.exe 3356 injector.exe 3356 injector.exe 3356 injector.exe 3356 injector.exe 3356 injector.exe 2012 csrss.exe 2012 csrss.exe 3356 injector.exe 3356 injector.exe 3356 injector.exe 3356 injector.exe 3356 injector.exe 3356 injector.exe 2012 csrss.exe 2012 csrss.exe 3356 injector.exe 3356 injector.exe 2012 csrss.exe 2012 csrss.exe 3356 injector.exe 3356 injector.exe 3356 injector.exe 3356 injector.exe 3356 injector.exe 3356 injector.exe 3356 injector.exe 3356 injector.exe 3356 injector.exe 3356 injector.exe 3356 injector.exe 3356 injector.exe 3356 injector.exe 3356 injector.exe 3356 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exef435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 2036 powershell.exe Token: SeDebugPrivilege 4000 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Token: SeImpersonatePrivilege 4000 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Token: SeDebugPrivilege 1748 powershell.exe Token: SeDebugPrivilege 3964 powershell.exe Token: SeDebugPrivilege 668 powershell.exe Token: SeDebugPrivilege 4612 powershell.exe Token: SeDebugPrivilege 3728 powershell.exe Token: SeDebugPrivilege 2520 powershell.exe Token: SeSystemEnvironmentPrivilege 2012 csrss.exe Token: SeSecurityPrivilege 3700 sc.exe Token: SeSecurityPrivilege 3700 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exef435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 4000 wrote to memory of 2036 4000 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 85 PID 4000 wrote to memory of 2036 4000 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 85 PID 4000 wrote to memory of 2036 4000 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 85 PID 1676 wrote to memory of 1748 1676 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 95 PID 1676 wrote to memory of 1748 1676 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 95 PID 1676 wrote to memory of 1748 1676 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 95 PID 1676 wrote to memory of 4420 1676 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 100 PID 1676 wrote to memory of 4420 1676 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 100 PID 4420 wrote to memory of 2400 4420 cmd.exe 102 PID 4420 wrote to memory of 2400 4420 cmd.exe 102 PID 1676 wrote to memory of 3964 1676 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 104 PID 1676 wrote to memory of 3964 1676 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 104 PID 1676 wrote to memory of 3964 1676 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 104 PID 1676 wrote to memory of 668 1676 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 106 PID 1676 wrote to memory of 668 1676 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 106 PID 1676 wrote to memory of 668 1676 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 106 PID 1676 wrote to memory of 2012 1676 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 109 PID 1676 wrote to memory of 2012 1676 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 109 PID 1676 wrote to memory of 2012 1676 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 109 PID 2012 wrote to memory of 4612 2012 csrss.exe 110 PID 2012 wrote to memory of 4612 2012 csrss.exe 110 PID 2012 wrote to memory of 4612 2012 csrss.exe 110 PID 2012 wrote to memory of 3728 2012 csrss.exe 116 PID 2012 wrote to memory of 3728 2012 csrss.exe 116 PID 2012 wrote to memory of 3728 2012 csrss.exe 116 PID 2012 wrote to memory of 2520 2012 csrss.exe 118 PID 2012 wrote to memory of 2520 2012 csrss.exe 118 PID 2012 wrote to memory of 2520 2012 csrss.exe 118 PID 2012 wrote to memory of 3356 2012 csrss.exe 120 PID 2012 wrote to memory of 3356 2012 csrss.exe 120 PID 2460 wrote to memory of 2808 2460 windefender.exe 128 PID 2460 wrote to memory of 2808 2460 windefender.exe 128 PID 2460 wrote to memory of 2808 2460 windefender.exe 128 PID 2808 wrote to memory of 3700 2808 cmd.exe 129 PID 2808 wrote to memory of 3700 2808 cmd.exe 129 PID 2808 wrote to memory of 3700 2808 cmd.exe 129 -
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\f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe"C:\Users\Admin\AppData\Local\Temp\f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4000 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2036
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C:\Users\Admin\AppData\Local\Temp\f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe"C:\Users\Admin\AppData\Local\Temp\f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.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:1676 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1748
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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:4420 -
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:2400
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3964
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:668
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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:2012 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4612
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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:4628
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4976
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3728
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2520
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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:3356
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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:1768
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2460 -
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:2808 -
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:3700
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4124
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
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD517889edc3145e60a7bbf770cc4ee232e
SHA155c433f01ddc8ed1c2f882c8290a52b9c2767bb0
SHA256f438c5f9739ae7ff36fbd2fb429ed8307f079823ed7fa19acbc72f7c1d45b48b
SHA5129ee5d8c96280b1fc9307faece2524722819bc4d6ec0113084a96d492e96700aeecafaaf4c147fa11a32d74c4f7450a1ccdd6676948a3e266c4078d2a85ea449d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54a3098407976a18eb90c7c281b27bc00
SHA1e159bfa8857100bd35fc2b77f77204f6678ea52d
SHA25670fb053092c5a4540abf4f9e384c98c6d04869c069f2d5b37715a1599c890a75
SHA512bc17e1eaca9734773ca6f1fe7c10690dc6559de031a2c74dbf7b1a400619373e843550f644117af7280aaaa3d3d18addb30dac8b86dbea8ed65efd8cc9f1e61a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD576fb868c89f0ae6d27f700d0d8b660b9
SHA11166fad784597dbff41f4071f33d6b0f8cdce3d8
SHA2560390d8a099384de350b4d6018e622e9de399cd82d742be79a5bfda3f5413e8bd
SHA512944475bb45990a6bb4e6d93baa9582b04565480bdcd2f1ff096c3ae4f12c728fab111e4da9ec308eeebbcbba45c4e09b73daa22b8793dc645eb5c6458f72d30e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD583814e26fa923a9b7252924c8530eeff
SHA13d8df1d963cfb096c7d768047eb6998379056fd5
SHA2564bf8264260efdd8a671e259a7c298a259c0b22d8a075e6bab3ae2be0c94fedb5
SHA512c234c7333bd6912a0e4ad442a33115e43710a6c6e3bf198db43a590b0a0440907968d15e1e2dbeb87a28f08655db3b79d24d8b1286113b975b596f651f0ce8ee
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54769fbc33c333bde11c117be8ade3072
SHA127bc4b0b847b8850ea7686a079a570bf32323fe5
SHA2560a1b8b9be94e5877a32255057d5c8082fc604e33beebc3e57f4fe8fb233c76e9
SHA51248f1a0e59244c5e78e6c35537a3f7d6aa62a66a6300a9cd1727254bb9fb961bf0adf36afb49173e3083abcd12750400fe5b8d2783f220ddd1df82de9db4b387d
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Filesize
4.1MB
MD5fb9cf7d877427716649a6c00c39b4e03
SHA11a8bc5e39e9160e0549bd4481a274c98f3d3feef
SHA256f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7
SHA5122cb21c3ba7cb9ae84e21db719b5054e43d3fe264922fdddbc095e1f6f4a809aab504b1e2837b93150cd3bdd545355fb090031ab43b2ee6b8ac27792594053ae4
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec