Analysis
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max time kernel
276s -
max time network
297s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system -
submitted
17-05-2024 00:12
Static task
static1
Behavioral task
behavioral1
Sample
cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe
Resource
win7-20240221-en
General
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Target
cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe
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Size
4.1MB
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MD5
c3f2afceda203d159d7a716f04e05eb5
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SHA1
af92301ee6c6cf1fa3687874365b808b968bf0d0
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SHA256
cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504
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SHA512
310cf8fa49a671750529f9c8040a96583e1df4fda7abf541cc51afd7b734a629dfe36d4a9906cd580b83eb0ecacc8378a435f9f5150bdf3f2e9caf35c6fe848c
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SSDEEP
98304:cpMzL5+lO9W76PsoCApCyikUKUcOjCi32ayWjPGQw0uKEhKus:cCz0Ow78YApCVkUKUXCi327kurTvhK7
Malware Config
Signatures
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Glupteba payload 27 IoCs
resource yara_rule behavioral2/memory/612-2-0x0000000004B50000-0x000000000543B000-memory.dmp family_glupteba behavioral2/memory/612-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/612-280-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/612-302-0x0000000004B50000-0x000000000543B000-memory.dmp family_glupteba behavioral2/memory/612-303-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/612-300-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4596-696-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4596-1023-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4560-1025-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4560-1738-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4560-1752-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4560-1761-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4560-1763-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4560-1769-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4560-1771-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4560-1773-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4560-1777-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4560-1779-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4560-1781-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4560-1783-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4560-1785-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4560-1787-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4560-1789-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4560-1791-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4560-1793-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4560-1795-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4560-1797-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe = "0" cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4084 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4560 csrss.exe 2564 injector.exe 2616 windefender.exe 668 windefender.exe -
resource yara_rule behavioral2/files/0x000800000001abe0-1755.dat upx behavioral2/memory/2616-1756-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/668-1759-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2616-1760-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/668-1762-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/668-1766-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe = "0" cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-873560699-1074803302-2326074425-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe Set value (str) \REGISTRY\USER\S-1-5-21-873560699-1074803302-2326074425-1000\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 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 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 -
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 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe File created C:\Windows\rss\csrss.exe cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.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 4980 sc.exe -
pid Process 2600 powershell.exe 2860 powershell.exe 668 powershell.exe 4440 powershell.exe 3580 powershell.exe 3116 powershell.exe 4212 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4692 schtasks.exe 2424 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-112 = "Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time" cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-435 = "Georgian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-542 = "Myanmar Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-2141 = "Transbaikal Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.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\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs 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\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-1892 = "Russia TZ 3 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-448 = "Azerbaijan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-2612 = "Bougainville Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-492 = "India Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-2511 = "Lord Howe Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-2062 = "North Korea Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates 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\1a\52C64B7E\@tzres.dll,-742 = "New Zealand Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-831 = "SA Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-1842 = "Russia TZ 4 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-2321 = "Sakhalin Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time" cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-11 = "Azores Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.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\1a\52C64B7E\@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-442 = "Arabian Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-662 = "Cen. Australia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-622 = "Korea Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-42 = "E. South America Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 668 powershell.exe 668 powershell.exe 668 powershell.exe 612 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe 612 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe 4440 powershell.exe 4440 powershell.exe 4440 powershell.exe 4596 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe 4596 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe 4596 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe 4596 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe 4596 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe 4596 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe 4596 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe 4596 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe 4596 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe 4596 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe 3580 powershell.exe 3580 powershell.exe 3580 powershell.exe 3116 powershell.exe 3116 powershell.exe 3116 powershell.exe 4212 powershell.exe 4212 powershell.exe 4212 powershell.exe 2600 powershell.exe 2600 powershell.exe 2600 powershell.exe 2860 powershell.exe 2860 powershell.exe 2860 powershell.exe 2564 injector.exe 2564 injector.exe 2564 injector.exe 2564 injector.exe 2564 injector.exe 2564 injector.exe 2564 injector.exe 2564 injector.exe 4560 csrss.exe 4560 csrss.exe 2564 injector.exe 2564 injector.exe 2564 injector.exe 2564 injector.exe 2564 injector.exe 2564 injector.exe 4560 csrss.exe 4560 csrss.exe 2564 injector.exe 2564 injector.exe 4560 csrss.exe 4560 csrss.exe 2564 injector.exe 2564 injector.exe 2564 injector.exe 2564 injector.exe 2564 injector.exe 2564 injector.exe 2564 injector.exe 2564 injector.exe 2564 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 668 powershell.exe Token: SeDebugPrivilege 612 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe Token: SeImpersonatePrivilege 612 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe Token: SeDebugPrivilege 4440 powershell.exe Token: SeDebugPrivilege 3580 powershell.exe Token: SeDebugPrivilege 3116 powershell.exe Token: SeDebugPrivilege 4212 powershell.exe Token: SeDebugPrivilege 2600 powershell.exe Token: SeDebugPrivilege 2860 powershell.exe Token: SeSystemEnvironmentPrivilege 4560 csrss.exe Token: SeSecurityPrivilege 4980 sc.exe Token: SeSecurityPrivilege 4980 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 612 wrote to memory of 668 612 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe 75 PID 612 wrote to memory of 668 612 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe 75 PID 612 wrote to memory of 668 612 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe 75 PID 4596 wrote to memory of 4440 4596 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe 80 PID 4596 wrote to memory of 4440 4596 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe 80 PID 4596 wrote to memory of 4440 4596 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe 80 PID 4596 wrote to memory of 4288 4596 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe 82 PID 4596 wrote to memory of 4288 4596 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe 82 PID 4288 wrote to memory of 4084 4288 cmd.exe 84 PID 4288 wrote to memory of 4084 4288 cmd.exe 84 PID 4596 wrote to memory of 3580 4596 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe 85 PID 4596 wrote to memory of 3580 4596 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe 85 PID 4596 wrote to memory of 3580 4596 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe 85 PID 4596 wrote to memory of 3116 4596 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe 87 PID 4596 wrote to memory of 3116 4596 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe 87 PID 4596 wrote to memory of 3116 4596 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe 87 PID 4596 wrote to memory of 4560 4596 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe 89 PID 4596 wrote to memory of 4560 4596 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe 89 PID 4596 wrote to memory of 4560 4596 cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe 89 PID 4560 wrote to memory of 4212 4560 csrss.exe 90 PID 4560 wrote to memory of 4212 4560 csrss.exe 90 PID 4560 wrote to memory of 4212 4560 csrss.exe 90 PID 4560 wrote to memory of 2600 4560 csrss.exe 97 PID 4560 wrote to memory of 2600 4560 csrss.exe 97 PID 4560 wrote to memory of 2600 4560 csrss.exe 97 PID 4560 wrote to memory of 2860 4560 csrss.exe 99 PID 4560 wrote to memory of 2860 4560 csrss.exe 99 PID 4560 wrote to memory of 2860 4560 csrss.exe 99 PID 4560 wrote to memory of 2564 4560 csrss.exe 101 PID 4560 wrote to memory of 2564 4560 csrss.exe 101 PID 2616 wrote to memory of 208 2616 windefender.exe 108 PID 2616 wrote to memory of 208 2616 windefender.exe 108 PID 2616 wrote to memory of 208 2616 windefender.exe 108 PID 208 wrote to memory of 4980 208 cmd.exe 109 PID 208 wrote to memory of 4980 208 cmd.exe 109 PID 208 wrote to memory of 4980 208 cmd.exe 109 -
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\cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe"C:\Users\Admin\AppData\Local\Temp\cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:612 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:668
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C:\Users\Admin\AppData\Local\Temp\cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe"C:\Users\Admin\AppData\Local\Temp\cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504.exe"2⤵
- Windows security bypass
- Windows security modification
- 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:4596 -
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:4440
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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:4288 -
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:4084
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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:3580
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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:3116
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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:4560 -
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:4212
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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:4692
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4592
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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:2600
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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:2860
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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:2564
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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:2424
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2616 -
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:208 -
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:4980
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:668
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
1B
MD5c4ca4238a0b923820dcc509a6f75849b
SHA1356a192b7913b04c54574d18c28d46e6395428ab
SHA2566b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
SHA5124dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a
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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
MD51c19c16e21c97ed42d5beabc93391fc5
SHA18ad83f8e0b3acf8dfbbf87931e41f0d664c4df68
SHA2561bcd97396c83babfe6c5068ba590d7a3f8b70e72955a9d1e4070648e404cbf05
SHA5127d18776d8f649b3d29c182ff03efc6cea8b527542ee55304980f24577aae8b64e37044407776e220984346c3998ace5f8853afa58c8b38407482a728e9495e0c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD56ec1623b7f94dc985dcd2caab1b9c424
SHA1f4fb7f9b8e98ac515915bb78e7e82ea0330027b8
SHA256e579635e0662e2ba5d26fa647c5d63bce39055225cf58eb1d59a454f0176a1b4
SHA512a6302a352126385ec488a66373d560d257f387ac3694ae8963027c426a37f14ac7a8a7f8b83c851cd08265d0af06e5817b73332eac5f7ab244aea21751c07878
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD53bc457757c51827db2ba2cf591c0a281
SHA137f23208d42e3bdb7916d437eff3bb5559f2363a
SHA256f1860cd8676130934a2a7bc3fdcd31f731a790ac1592b6ad6c91a5edcca29a9b
SHA5122dd7b56758ecd368cc668fc7e376cab02975da145d921702070e0b3eb19c60a32821efd5facfed1dd60ba52b911aea729c37bb12704ffdccc15745ea287d0f44
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD5adf72b57bdce84e3b9485af91cf8f283
SHA131f927aeb8d616662855925ec46b1d73d9e90f1e
SHA25607f5b04ce1c4b8fad6385a30861e49d8ad16370ede9439b942e81fa4d9e8e812
SHA51227d53e2a343cb96f7abc101eba1a5680859d96d91e28d1fe05fe241b0ca4f6e475e4835fadf63296bf7cae9822ad493c215342315992c39e7c5063169b8a94dc
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD59f3f819fc2ea5448c6292db8a5e54980
SHA1b07ac4fa2bf360f54816f2f8c678a6689fecca2f
SHA2565a00b552704a3f92655df491588670824e5c12d6846df12cf7d1827ff184cd67
SHA512d6f53f8629e06d094e049020a950b870a95b5f5bab1481e2e0ec230c29152e1bb4c54130aebaec5f74a4cf7e5ab59e7a85423b96e7d56d54a3b0ab3216f33131
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD568034218ead63ebe402ca091898cfd41
SHA1861b134e8bb1850e478810b5514c216880b47bc9
SHA25645bc21b373f79eea7f477f7ea82b494d0adad0e1bc21a7106640e26ae754f61f
SHA5129fccb0af6553b8088fd19fffae47bb4d1eb72b520aaddc0380f135b0a4c559dc50a3f572e54fab3a7c712a3f60b457e50e7bdad8db94edc626b655362406bbfc
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Filesize
4.1MB
MD5c3f2afceda203d159d7a716f04e05eb5
SHA1af92301ee6c6cf1fa3687874365b808b968bf0d0
SHA256cdbd1e78b5156b2df0e77dd43797a72f3c40cea4b95baa7620df4f33ffd3c504
SHA512310cf8fa49a671750529f9c8040a96583e1df4fda7abf541cc51afd7b734a629dfe36d4a9906cd580b83eb0ecacc8378a435f9f5150bdf3f2e9caf35c6fe848c
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec