Analysis
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max time kernel
149s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
19-04-2024 07:04
Static task
static1
Behavioral task
behavioral1
Sample
f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe
Resource
win10v2004-20240412-en
General
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Target
f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe
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Size
4.2MB
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MD5
320abca5c3ab3ee0a5142fc9583cffdd
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SHA1
16430a912780d515b65a1ce2670474a8f490f6fd
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SHA256
f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c
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SHA512
9afe4c03c6fd287013524839281f067355fe1dfe6c51f36640b177c2112572a9dd86a07208d1497e6899c816cef2f67fe7cfbb0c78517be2c8e2d6bf75f93e48
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SSDEEP
98304:PNkDk7Y2e9fhWY+LbgLFpBVAayCN/CB0J4dlv7S/k29jp/4E:Wk7LeNhW/+FpBVAa19Ce4dlv7wZ4E
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral1/memory/1068-2-0x00000000051A0000-0x0000000005A8B000-memory.dmp family_glupteba behavioral1/memory/1068-3-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/4940-56-0x0000000005140000-0x0000000005A2B000-memory.dmp family_glupteba behavioral1/memory/4940-57-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/1068-103-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/4940-237-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/4980-259-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/4980-270-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/4980-274-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/4980-278-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/4980-282-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/4980-286-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/4980-290-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/4980-294-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/4980-298-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/4980-302-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/4980-306-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/4980-310-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/4980-314-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 4988 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 4980 csrss.exe 2728 injector.exe 3136 windefender.exe 3652 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral1/memory/3136-267-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3652-272-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3652-280-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\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 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 -
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:
f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe -
Drops file in Windows directory 4 IoCs
Processes:
f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.execsrss.exedescription ioc process File opened for modification C:\Windows\rss f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe File created C:\Windows\rss\csrss.exe f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.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 2428 sc.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 464 schtasks.exe 3504 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exepowershell.exepowershell.exewindefender.exepowershell.exef3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exepowershell.exepowershell.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust 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\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-71 = "Newfoundland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-301 = "Romance Daylight 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\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 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,-152 = "Central America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-732 = "Fiji Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2391 = "Aleutian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2001 = "Cabo Verde Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2451 = "Saint Pierre Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1662 = "Bahia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2371 = "Easter Island Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-722 = "Central Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-491 = "India Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-335 = "Jordan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-871 = "Pakistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-241 = "Samoa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates 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,-1661 = "Bahia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-681 = "E. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-211 = "Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2941 = "Sao Tome Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time" f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-442 = "Arabian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-692 = "Tasmania Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time" f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-291 = "Central European Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time" f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1472 = "Magadan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-912 = "Mauritius Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2771 = "Omsk Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exef3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exepowershell.exef3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 4168 powershell.exe 4168 powershell.exe 1068 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe 1068 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe 5064 powershell.exe 5064 powershell.exe 5064 powershell.exe 4940 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe 4940 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe 4940 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe 4940 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe 4940 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe 4940 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe 4940 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe 4940 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe 4940 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe 4940 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe 4456 powershell.exe 4456 powershell.exe 2612 powershell.exe 2612 powershell.exe 3612 powershell.exe 3612 powershell.exe 3452 powershell.exe 3452 powershell.exe 1164 powershell.exe 1164 powershell.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 4980 csrss.exe 4980 csrss.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 4980 csrss.exe 4980 csrss.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 4980 csrss.exe 4980 csrss.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exef3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 4168 powershell.exe Token: SeDebugPrivilege 1068 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe Token: SeImpersonatePrivilege 1068 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe Token: SeDebugPrivilege 5064 powershell.exe Token: SeDebugPrivilege 4456 powershell.exe Token: SeDebugPrivilege 2612 powershell.exe Token: SeDebugPrivilege 3612 powershell.exe Token: SeDebugPrivilege 3452 powershell.exe Token: SeDebugPrivilege 1164 powershell.exe Token: SeSystemEnvironmentPrivilege 4980 csrss.exe Token: SeSecurityPrivilege 2428 sc.exe Token: SeSecurityPrivilege 2428 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exef3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 1068 wrote to memory of 4168 1068 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe powershell.exe PID 1068 wrote to memory of 4168 1068 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe powershell.exe PID 1068 wrote to memory of 4168 1068 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe powershell.exe PID 4940 wrote to memory of 5064 4940 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe Conhost.exe PID 4940 wrote to memory of 5064 4940 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe Conhost.exe PID 4940 wrote to memory of 5064 4940 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe Conhost.exe PID 4940 wrote to memory of 4452 4940 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe cmd.exe PID 4940 wrote to memory of 4452 4940 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe cmd.exe PID 4452 wrote to memory of 4988 4452 cmd.exe netsh.exe PID 4452 wrote to memory of 4988 4452 cmd.exe netsh.exe PID 4940 wrote to memory of 4456 4940 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe powershell.exe PID 4940 wrote to memory of 4456 4940 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe powershell.exe PID 4940 wrote to memory of 4456 4940 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe powershell.exe PID 4940 wrote to memory of 2612 4940 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe powershell.exe PID 4940 wrote to memory of 2612 4940 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe powershell.exe PID 4940 wrote to memory of 2612 4940 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe powershell.exe PID 4940 wrote to memory of 4980 4940 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe csrss.exe PID 4940 wrote to memory of 4980 4940 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe csrss.exe PID 4940 wrote to memory of 4980 4940 f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe csrss.exe PID 4980 wrote to memory of 3612 4980 csrss.exe powershell.exe PID 4980 wrote to memory of 3612 4980 csrss.exe powershell.exe PID 4980 wrote to memory of 3612 4980 csrss.exe powershell.exe PID 4980 wrote to memory of 3452 4980 csrss.exe powershell.exe PID 4980 wrote to memory of 3452 4980 csrss.exe powershell.exe PID 4980 wrote to memory of 3452 4980 csrss.exe powershell.exe PID 4980 wrote to memory of 1164 4980 csrss.exe powershell.exe PID 4980 wrote to memory of 1164 4980 csrss.exe powershell.exe PID 4980 wrote to memory of 1164 4980 csrss.exe powershell.exe PID 4980 wrote to memory of 2728 4980 csrss.exe injector.exe PID 4980 wrote to memory of 2728 4980 csrss.exe injector.exe PID 3136 wrote to memory of 2408 3136 windefender.exe cmd.exe PID 3136 wrote to memory of 2408 3136 windefender.exe cmd.exe PID 3136 wrote to memory of 2408 3136 windefender.exe cmd.exe PID 2408 wrote to memory of 2428 2408 cmd.exe sc.exe PID 2408 wrote to memory of 2428 2408 cmd.exe sc.exe PID 2408 wrote to memory of 2428 2408 cmd.exe sc.exe -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe"C:\Users\Admin\AppData\Local\Temp\f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1068 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4168
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C:\Users\Admin\AppData\Local\Temp\f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.exe"C:\Users\Admin\AppData\Local\Temp\f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c.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:4940 -
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:5064
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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:4452 -
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:4988
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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:4456
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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:2612
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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:4980 -
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:3612
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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:464
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4116
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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:3452 -
C:\Windows\System32\Conhost.exe\??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV15⤵PID:5064
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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:1164
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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:2728
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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:3504
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3136 -
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:2408 -
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:2428
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3652
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
MD53d086a433708053f9bf9523e1d87a4e8
SHA1b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA2566f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
SHA512931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5af5db529704c70566c666654b23f9296
SHA1714f783a437af53087f9eddddb18b56f4e791964
SHA256a84e36c5fa34565fc2b5f164d8eb6ca5697beab484023b4a57958db99595373e
SHA5122435a68e2e4da2b65fce5241ceaccca644806bc31c465924cb9f055262984eaaa050be9a5b281abe050a5af1a979f60aa81ce6d899373b029e13b3c49726c62d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD511902030714454f435f5b66dd200bf35
SHA1409e3b2ec1c0d14476765ca313a6f23f8a04ea7d
SHA25611151ab42cf8edd4b18513b804dcf594d8052a9c0f6a5165c122bb88f8d0029e
SHA512614bdf55ffe9c3c455b97fe5234e882ab610bf7a3dd82aa6dc38db6cc90a5ed0a2ce6712900ebe6bd7e231548dc40f9b2688c1486cf632665b77793395788877
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57cdbb9ad48ae06f7b5573b9ba5e1a275
SHA1cf8a9533b1ecb23aaac6b900d46d5875cbe032d8
SHA256c83e7e173940d7db59087a48e81552bd4a469332ed50ba85ab3376d9d9f4fe2b
SHA5120fa8c55e2c125392258e3d56084f9c185dd1bff3f4a012917d37b76faab2348ee4b70899587fbde8edf0249bd4d2bebf51c275d8f678d546c71092104726dffb
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54312d121564b0234871975ede9084b12
SHA1a87e0d00e25785ab4d9b243181ec386a52402bf1
SHA25661580451db2cd3dd0155c794a2b81224fd660985153a043fbe3c15e208333eef
SHA51227a610a54d020596cd1ae4ed34fc86c3e693a8e1a2a497e8291fdcdb5aaccfb00517219e7b6112ca6dae3371dc630af22be1d1f1b5f0291ecf8fd17106d4f355
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b1d46f66bd56a3383d5e413547c3a121
SHA1e1ef493cb86348e26a7b605e8d0cbb7d079f1f2a
SHA2564b084bc520eda5eb219e6aa0343b9f785ac18646d4c63179d33f566314a88e4e
SHA512553e15786e57f0f9856705c83cf1efc1eb4148bcd7334803ca36284cc0ef250d242929afc3f2d5b6f43001628249cb4ad5b45bd444e698f9f2760d2e8822b9df
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Filesize
4.2MB
MD5320abca5c3ab3ee0a5142fc9583cffdd
SHA116430a912780d515b65a1ce2670474a8f490f6fd
SHA256f3bdbee6bfde820276d5dc2e9cfb24564137ab0697cbcf6e9073ca98af5a225c
SHA5129afe4c03c6fd287013524839281f067355fe1dfe6c51f36640b177c2112572a9dd86a07208d1497e6899c816cef2f67fe7cfbb0c78517be2c8e2d6bf75f93e48
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec