Analysis
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max time kernel
149s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
16/05/2024, 09:45
Static task
static1
Behavioral task
behavioral1
Sample
c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe
Resource
win10v2004-20240508-en
General
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Target
c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe
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Size
4.1MB
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MD5
6cc4240ac77edb96d20157cbae0b8c9a
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SHA1
ea1d34d70f7ba791e4397fdb13b8edb84c98711e
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SHA256
c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30
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SHA512
97dd1f375d611b98991abf51feb334254f8a6c91baaabf9cd551c9afbd851a8f87a05e5185d402b36a32ecca5f682ec347281e704b61afbefa49216138762bf6
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SSDEEP
98304:1H49zrfgobu9aDMWAg4dPDb/NQHvakIF/A8L3rqLZk5t2qZ3qL2LAZ51:cr7OagDbOPW/F2k5tRZaLrz
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/3876-2-0x0000000002E50000-0x000000000373B000-memory.dmp family_glupteba behavioral2/memory/3876-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3876-52-0x0000000002E50000-0x000000000373B000-memory.dmp family_glupteba behavioral2/memory/3876-53-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4904-150-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4660-203-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4904-208-0x0000000002A40000-0x0000000002E3D000-memory.dmp family_glupteba behavioral2/memory/4660-215-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4660-218-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4660-220-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4660-223-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4660-227-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4660-230-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4660-232-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4660-235-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4660-239-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4660-242-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4660-244-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4660-247-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1528 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4660 csrss.exe 1656 injector.exe 1016 windefender.exe 2568 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9fb-207.dat upx behavioral2/memory/1016-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2568-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1016-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2568-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2568-222-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3062789476-783164490-2318012559-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Set value (str) \REGISTRY\USER\S-1-5-21-3062789476-783164490-2318012559-1000\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\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 File created 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 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 864 sc.exe -
pid Process 1476 powershell.exe 2748 powershell.exe 1548 powershell.exe 3160 powershell.exe 4204 powershell.exe 2116 powershell.exe 1592 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 2252 schtasks.exe 4992 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-692 = "Tasmania Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-681 = "E. Australia Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-41 = "E. South America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-912 = "Mauritius Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.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,-1722 = "Libya Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-392 = "Arab Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-452 = "Caucasus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-152 = "Central America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-341 = "Egypt Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-211 = "Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2842 = "Saratov Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-151 = "Central America 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,-732 = "Fiji Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2491 = "Aus Central W. Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1661 = "Bahia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-772 = "Montevideo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-541 = "Myanmar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2391 = "Aleutian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-682 = "E. Australia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.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\2a\52C64B7E\@tzres.dll,-1971 = "Belarus Daylight Time" windefender.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\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1476 powershell.exe 1476 powershell.exe 3876 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 3876 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 2748 powershell.exe 2748 powershell.exe 4904 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 4904 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 4904 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 4904 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 4904 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 4904 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 4904 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 4904 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 4904 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 4904 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 1548 powershell.exe 1548 powershell.exe 3160 powershell.exe 3160 powershell.exe 4204 powershell.exe 4204 powershell.exe 2116 powershell.exe 2116 powershell.exe 1592 powershell.exe 1592 powershell.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 4660 csrss.exe 4660 csrss.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 4660 csrss.exe 4660 csrss.exe 1656 injector.exe 1656 injector.exe 4660 csrss.exe 4660 csrss.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe 1656 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 1476 powershell.exe Token: SeDebugPrivilege 3876 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Token: SeImpersonatePrivilege 3876 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Token: SeDebugPrivilege 2748 powershell.exe Token: SeDebugPrivilege 1548 powershell.exe Token: SeDebugPrivilege 3160 powershell.exe Token: SeDebugPrivilege 4204 powershell.exe Token: SeDebugPrivilege 2116 powershell.exe Token: SeDebugPrivilege 1592 powershell.exe Token: SeSystemEnvironmentPrivilege 4660 csrss.exe Token: SeSecurityPrivilege 864 sc.exe Token: SeSecurityPrivilege 864 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3876 wrote to memory of 1476 3876 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 83 PID 3876 wrote to memory of 1476 3876 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 83 PID 3876 wrote to memory of 1476 3876 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 83 PID 4904 wrote to memory of 2748 4904 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 88 PID 4904 wrote to memory of 2748 4904 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 88 PID 4904 wrote to memory of 2748 4904 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 88 PID 4904 wrote to memory of 3120 4904 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 90 PID 4904 wrote to memory of 3120 4904 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 90 PID 3120 wrote to memory of 1528 3120 cmd.exe 92 PID 3120 wrote to memory of 1528 3120 cmd.exe 92 PID 4904 wrote to memory of 1548 4904 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 93 PID 4904 wrote to memory of 1548 4904 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 93 PID 4904 wrote to memory of 1548 4904 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 93 PID 4904 wrote to memory of 3160 4904 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 95 PID 4904 wrote to memory of 3160 4904 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 95 PID 4904 wrote to memory of 3160 4904 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 95 PID 4904 wrote to memory of 4660 4904 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 97 PID 4904 wrote to memory of 4660 4904 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 97 PID 4904 wrote to memory of 4660 4904 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 97 PID 4660 wrote to memory of 4204 4660 csrss.exe 98 PID 4660 wrote to memory of 4204 4660 csrss.exe 98 PID 4660 wrote to memory of 4204 4660 csrss.exe 98 PID 4660 wrote to memory of 2116 4660 csrss.exe 104 PID 4660 wrote to memory of 2116 4660 csrss.exe 104 PID 4660 wrote to memory of 2116 4660 csrss.exe 104 PID 4660 wrote to memory of 1592 4660 csrss.exe 106 PID 4660 wrote to memory of 1592 4660 csrss.exe 106 PID 4660 wrote to memory of 1592 4660 csrss.exe 106 PID 4660 wrote to memory of 1656 4660 csrss.exe 108 PID 4660 wrote to memory of 1656 4660 csrss.exe 108 PID 1016 wrote to memory of 908 1016 windefender.exe 114 PID 1016 wrote to memory of 908 1016 windefender.exe 114 PID 1016 wrote to memory of 908 1016 windefender.exe 114 PID 908 wrote to memory of 864 908 cmd.exe 115 PID 908 wrote to memory of 864 908 cmd.exe 115 PID 908 wrote to memory of 864 908 cmd.exe 115 -
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\c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe"C:\Users\Admin\AppData\Local\Temp\c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3876 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1476
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C:\Users\Admin\AppData\Local\Temp\c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe"C:\Users\Admin\AppData\Local\Temp\c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.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:4904 -
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:2748
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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:3120 -
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:1528
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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:1548
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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:3160
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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:4660 -
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:4204
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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:2252
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1812
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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:2116
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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:1592
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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:1656
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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:4992
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1016 -
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:908 -
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:864
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2568
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
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD515078bebec90eaa3680c4b602847a052
SHA1f50c839b3d823120e4d419ebd641035614d2622e
SHA256b201aca7c95f21fb1dc16a46fc54131255486be404374219f04b4ffd0aa22f9b
SHA512286ffe89c6cdb41b12f3a2845bed3e040dff35302243f6782ccb13318af18ce3db561aa9b4f312f0e719197731c204414963c1bf7b388775be19e50c3f88e0a9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD568eafb18d334bb3cf3c69f9bf48e954b
SHA1a33dcdd8cbdc45e7be0ec4c92803e38f8c5fadec
SHA256ffef23ef306fa29b88f83dad320ea782a3962d85796e3cb5855393d25887c571
SHA51255a37fb2e8e1abbebdaaed0968763ca64216f02baf7950c1cefd5dad04a42689a14f7f43b1b57ac424bfdb106eac970a8c69f2a651049ef2e362af678b8a0913
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ddb92bdaf06ad6a12f4e590a09286041
SHA175670c5ccd2d4c223e4a063584ecf95d538816dc
SHA25668d00f585391f8765a6d26b4592d7f19634fcc6c8ac5c5e734a571362e23e0a7
SHA512f75b2d6a70c73978df3be2c272225b744fb167aa80bc315629d5d53076072525c90c80d51c168f27045719dcf899bb316e2aa542b1ba9b6780cebf2c939c9732
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD506e0cf2f9e74f517954c3bae7c9f986d
SHA1c7245fb817d59d72289fa09f4b571f80dabc7b2e
SHA256107e6934d7914301c2aedf0f2739a092de4616c65146aedf9f59e516e436b5a8
SHA51217dc4fb023a46a551ce4a6d2332ee2002d7d1b8e1d6d18310c36766f1e94ffa077a87153d9fd8578a23dfcef5b1023be1a2f17478e95d0ed61fb1cc95f19f455
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b12ada241e252b2d9c6ce9dbcfde7c0f
SHA1004570f7ba41edbf3f964543a4771bc5874a41eb
SHA25612b6f1821f4007e423e24a9d474a6521652d340a3491cd02ae35013d42d6bc19
SHA5122d3ec9c1b02e629506b263123fd6a1f1b952e6032e7ce0baf6750c0cd074c4bd796d26878e2f678f3e338246cc0a36f4755156b34c5a1088e54f61680865948f
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Filesize
4.1MB
MD56cc4240ac77edb96d20157cbae0b8c9a
SHA1ea1d34d70f7ba791e4397fdb13b8edb84c98711e
SHA256c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30
SHA51297dd1f375d611b98991abf51feb334254f8a6c91baaabf9cd551c9afbd851a8f87a05e5185d402b36a32ecca5f682ec347281e704b61afbefa49216138762bf6
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec