Analysis
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max time kernel
150s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
18-05-2024 11:39
Static task
static1
Behavioral task
behavioral1
Sample
03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe
Resource
win10v2004-20240508-en
General
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Target
03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe
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Size
4.1MB
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MD5
2a82ce75ca1c05a68a68b8fb61b013ab
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SHA1
9975db162f24f5c5fdd8dcebf37ef285265c8dda
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SHA256
03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34
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SHA512
599bd1cda02a50854243b098a9c094a8a49b7d6e452938c2ee85a6dfdf66c9dc6b17831f503266effd07a06a9fcb8ef2eef91aa6882ee7366d5df401d958fe3b
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SSDEEP
98304:gZ9bi3QNEOtUId2petU9sYIhWVMAA4+Hj:J303UIApyYIhWVME+
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/3876-2-0x0000000004DB0000-0x000000000569B000-memory.dmp family_glupteba behavioral2/memory/3876-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3876-144-0x0000000004DB0000-0x000000000569B000-memory.dmp family_glupteba behavioral2/memory/3876-145-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3876-199-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3356-198-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4252-200-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4252-211-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4252-215-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4252-219-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4252-224-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4252-227-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4252-231-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4252-235-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4252-240-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4252-243-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4252-247-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4252-251-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4252-256-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1632 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4252 csrss.exe 4188 injector.exe 3512 windefender.exe 1908 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9e7-205.dat upx behavioral2/memory/3512-206-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1908-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3512-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1908-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1908-221-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1908-234-0x0000000000400000-0x00000000008DF000-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\"" 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.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 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe File created C:\Windows\rss\csrss.exe 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.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 3600 sc.exe -
pid Process 2504 powershell.exe 1540 powershell.exe 4844 powershell.exe 2780 powershell.exe 1080 powershell.exe 3176 powershell.exe 2348 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 3688 schtasks.exe 4824 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\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time" 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time" 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-382 = "South Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.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\2a\52C64B7E\@tzres.dll,-2892 = "Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-931 = "Coordinated Universal Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time" 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time" 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time" 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.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" 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time" 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.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\2a\52C64B7E\@tzres.dll,-2611 = "Bougainville Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-232 = "Hawaiian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1802 = "Line Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time" 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-602 = "Taipei Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-841 = "Argentina Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs 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\2a\52C64B7E\@tzres.dll,-412 = "E. Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust 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\2a\52C64B7E\@tzres.dll,-105 = "Central Brazilian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-215 = "Pacific Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2451 = "Saint Pierre Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time" 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2504 powershell.exe 2504 powershell.exe 3876 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe 3876 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe 1540 powershell.exe 1540 powershell.exe 3356 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe 3356 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe 3356 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe 3356 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe 3356 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe 3356 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe 3356 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe 3356 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe 3356 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe 3356 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe 4844 powershell.exe 4844 powershell.exe 2780 powershell.exe 2780 powershell.exe 1080 powershell.exe 1080 powershell.exe 3176 powershell.exe 3176 powershell.exe 2348 powershell.exe 2348 powershell.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4252 csrss.exe 4252 csrss.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4252 csrss.exe 4252 csrss.exe 4188 injector.exe 4188 injector.exe 4252 csrss.exe 4252 csrss.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe 4188 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 2504 powershell.exe Token: SeDebugPrivilege 3876 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe Token: SeImpersonatePrivilege 3876 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe Token: SeDebugPrivilege 1540 powershell.exe Token: SeDebugPrivilege 4844 powershell.exe Token: SeDebugPrivilege 2780 powershell.exe Token: SeDebugPrivilege 1080 powershell.exe Token: SeDebugPrivilege 3176 powershell.exe Token: SeDebugPrivilege 2348 powershell.exe Token: SeSystemEnvironmentPrivilege 4252 csrss.exe Token: SeSecurityPrivilege 3600 sc.exe Token: SeSecurityPrivilege 3600 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3876 wrote to memory of 2504 3876 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe 78 PID 3876 wrote to memory of 2504 3876 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe 78 PID 3876 wrote to memory of 2504 3876 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe 78 PID 3356 wrote to memory of 1540 3356 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe 83 PID 3356 wrote to memory of 1540 3356 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe 83 PID 3356 wrote to memory of 1540 3356 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe 83 PID 3356 wrote to memory of 2272 3356 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe 85 PID 3356 wrote to memory of 2272 3356 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe 85 PID 2272 wrote to memory of 1632 2272 cmd.exe 87 PID 2272 wrote to memory of 1632 2272 cmd.exe 87 PID 3356 wrote to memory of 4844 3356 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe 88 PID 3356 wrote to memory of 4844 3356 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe 88 PID 3356 wrote to memory of 4844 3356 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe 88 PID 3356 wrote to memory of 2780 3356 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe 90 PID 3356 wrote to memory of 2780 3356 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe 90 PID 3356 wrote to memory of 2780 3356 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe 90 PID 3356 wrote to memory of 4252 3356 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe 92 PID 3356 wrote to memory of 4252 3356 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe 92 PID 3356 wrote to memory of 4252 3356 03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe 92 PID 4252 wrote to memory of 1080 4252 csrss.exe 93 PID 4252 wrote to memory of 1080 4252 csrss.exe 93 PID 4252 wrote to memory of 1080 4252 csrss.exe 93 PID 4252 wrote to memory of 3176 4252 csrss.exe 99 PID 4252 wrote to memory of 3176 4252 csrss.exe 99 PID 4252 wrote to memory of 3176 4252 csrss.exe 99 PID 4252 wrote to memory of 2348 4252 csrss.exe 101 PID 4252 wrote to memory of 2348 4252 csrss.exe 101 PID 4252 wrote to memory of 2348 4252 csrss.exe 101 PID 4252 wrote to memory of 4188 4252 csrss.exe 103 PID 4252 wrote to memory of 4188 4252 csrss.exe 103 PID 3512 wrote to memory of 3100 3512 windefender.exe 109 PID 3512 wrote to memory of 3100 3512 windefender.exe 109 PID 3512 wrote to memory of 3100 3512 windefender.exe 109 PID 3100 wrote to memory of 3600 3100 cmd.exe 110 PID 3100 wrote to memory of 3600 3100 cmd.exe 110 PID 3100 wrote to memory of 3600 3100 cmd.exe 110 -
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\03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe"C:\Users\Admin\AppData\Local\Temp\03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.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:2504
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C:\Users\Admin\AppData\Local\Temp\03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.exe"C:\Users\Admin\AppData\Local\Temp\03dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34.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:3356 -
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:1540
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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:2272 -
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:1632
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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:4844
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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:2780
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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:4252 -
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:1080
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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:3688
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:828
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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:3176
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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:2348
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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:4188
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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:4824
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3512 -
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:3100 -
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:3600
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1908
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
MD5900e085cb6399509ea3666d293e3fc63
SHA137387f21956327ca51be879ec6ff86b54787d63b
SHA25661ebce3cf906d8973c11cd96d8393450121285bf7f060734c33fd3dc23e0872b
SHA51213895eacb35b8457a892269982b8759875e35946d141a0de070bdfc29dfe6f125e09bda8ef28b642afb57749d7c6fe0ddabb2aa2c81fa5d6e0383648f16bef9a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5905141ebc71e315179015cf781bfb286
SHA1de91c0f82019fe1af47894a0642940da78a72658
SHA256a7e9e316681b35e8cf611fc28b98db29473426f0e3b9417b3a2d8c49f80514b1
SHA5127ae6493c23372785d374057a21c638fae7c02ab2a4893a7f9d57e73c72c64797342745b779f9b37bdeb3ccd19c7c3234037c1e82f132c39b496606a76e082e6e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56494da44344f5a926893048e18c5fdd0
SHA1d068b72a103dabe68310db64d384970357625985
SHA2562d12a89665ed3f1115903ec6a437e9cec994b2f461ad109bb3b5c87a50e62706
SHA5125cf9bccf6dc37743218e4797aa210139457b44a6d2593a40ea1d364591daaa6873e65bb39d78a19502c5e4eede6127d486032557b88558fe5dd5855c3fa1e39d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f3cad87e4f28bb905a3f820d585d06d5
SHA16022e483e4d6a7f87ee9c6f5a920de6a60e839b0
SHA25697f407a86708d27c82ffb5834fcb7a6b9d4dcb9d65d13d26e93dd2a9216b6267
SHA5120d3f4990f5ffdc8e6792c19cea6e6c97ceb86dd53aef8ccdc1160f15444ced9531d47a89e9d7d406fd80b65c622c3103830a4bd5deabc9a1444335e267f788fb
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58d099e4ccbf331de37c054c232d3653b
SHA11c6d17a0b523b5f7ed8a8dc00ccf9161de9dcc55
SHA256140e38aab3800dd6741d70e5092e9425e665d59168b6a2054c6a1c2fc9a71bf6
SHA512e909f1194196d766d490799fe959bd5fcd3d1ff60dc0cc193b5285cf9c08baa64350e21d90a140c97f2eaedb568006d9465e96e2430575fb02a11466d1c7d97c
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Filesize
4.1MB
MD52a82ce75ca1c05a68a68b8fb61b013ab
SHA19975db162f24f5c5fdd8dcebf37ef285265c8dda
SHA25603dd2f43a2a8e8cd7f47f35df68cbfa3bc51e7fecbeeee5f73d430dceafc0d34
SHA512599bd1cda02a50854243b098a9c094a8a49b7d6e452938c2ee85a6dfdf66c9dc6b17831f503266effd07a06a9fcb8ef2eef91aa6882ee7366d5df401d958fe3b
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec