Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
17-05-2024 07:10
Static task
static1
Behavioral task
behavioral1
Sample
b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe
Resource
win10v2004-20240508-en
General
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Target
b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe
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Size
4.1MB
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MD5
3b200be8ba5d94581020a32ca98a1a2b
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SHA1
98c2e3426e493471e0f56a68bf66418e300f58d4
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SHA256
b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a
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SHA512
2ce409e26e091e11878a710fee2b1d69b809b9cc505a02359f683977c138dc7cf46c26f73fbad39f119706f5f941d23ec1041c44825a0a12537b11bc8a61e053
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SSDEEP
98304:A0IUXroYDzElV89sdV2qHm3LaKbYXl7F29tEHWEXgelgSAZWSyDiLY:7IU7SlV8K2X2AhEHFgekcH
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral1/memory/876-2-0x0000000004BF0000-0x00000000054DB000-memory.dmp family_glupteba behavioral1/memory/876-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/876-4-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral1/memory/876-56-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral1/memory/876-67-0x0000000004BF0000-0x00000000054DB000-memory.dmp family_glupteba behavioral1/memory/876-83-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1432-82-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral1/memory/1432-138-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral1/memory/4472-162-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral1/memory/4472-220-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral1/memory/4472-231-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral1/memory/4472-234-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral1/memory/4472-239-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral1/memory/4472-243-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral1/memory/4472-247-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral1/memory/4472-250-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral1/memory/4472-255-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral1/memory/4472-259-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral1/memory/4472-263-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 4356 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 4472 csrss.exe 1528 injector.exe 1056 windefender.exe 4172 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral1/memory/1056-226-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1056-230-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4172-235-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4172-242-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4172-254-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
csrss.exeb8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.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:
b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe -
Drops file in Windows directory 4 IoCs
Processes:
b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.execsrss.exedescription ioc process File created C:\Windows\rss\csrss.exe b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.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 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid process 908 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid process 1852 powershell.exe 2332 powershell.exe 3044 powershell.exe 4872 powershell.exe 1776 powershell.exe 2136 powershell.exe 668 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 3320 schtasks.exe 968 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exepowershell.exewindefender.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-72 = "Newfoundland Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-231 = "Hawaiian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2512 = "Lord Howe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2592 = "Tocantins Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-252 = "Dateline Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-242 = "Samoa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-531 = "Sri Lanka Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-222 = "Alaskan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-364 = "Middle East Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1912 = "Russia TZ 10 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1832 = "Russia TZ 2 Standard Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-392 = "Arab Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-449 = "Azerbaijan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2002 = "Cabo Verde Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-365 = "Middle East Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-302 = "Romance Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-382 = "South Africa Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-111 = "Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-241 = "Samoa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-722 = "Central Pacific 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\@tzres.dll,-502 = "Nepal Standard Time" windefender.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" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2001 = "Cabo Verde Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-32 = "Mid-Atlantic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3052 = "Qyzylorda Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exeb8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exepowershell.exeb8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 1852 powershell.exe 1852 powershell.exe 876 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 876 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 2332 powershell.exe 2332 powershell.exe 1432 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 1432 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 1432 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 1432 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 1432 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 1432 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 1432 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 1432 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 1432 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 1432 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 3044 powershell.exe 3044 powershell.exe 4872 powershell.exe 4872 powershell.exe 1776 powershell.exe 1776 powershell.exe 2136 powershell.exe 2136 powershell.exe 668 powershell.exe 668 powershell.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 4472 csrss.exe 4472 csrss.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 4472 csrss.exe 4472 csrss.exe 1528 injector.exe 1528 injector.exe 4472 csrss.exe 4472 csrss.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exeb8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 1852 powershell.exe Token: SeDebugPrivilege 876 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Token: SeImpersonatePrivilege 876 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Token: SeDebugPrivilege 2332 powershell.exe Token: SeDebugPrivilege 3044 powershell.exe Token: SeDebugPrivilege 4872 powershell.exe Token: SeDebugPrivilege 1776 powershell.exe Token: SeDebugPrivilege 2136 powershell.exe Token: SeDebugPrivilege 668 powershell.exe Token: SeSystemEnvironmentPrivilege 4472 csrss.exe Token: SeSecurityPrivilege 908 sc.exe Token: SeSecurityPrivilege 908 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exeb8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 876 wrote to memory of 1852 876 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe powershell.exe PID 876 wrote to memory of 1852 876 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe powershell.exe PID 876 wrote to memory of 1852 876 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe powershell.exe PID 1432 wrote to memory of 2332 1432 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe powershell.exe PID 1432 wrote to memory of 2332 1432 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe powershell.exe PID 1432 wrote to memory of 2332 1432 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe powershell.exe PID 1432 wrote to memory of 1912 1432 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe cmd.exe PID 1432 wrote to memory of 1912 1432 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe cmd.exe PID 1912 wrote to memory of 4356 1912 cmd.exe netsh.exe PID 1912 wrote to memory of 4356 1912 cmd.exe netsh.exe PID 1432 wrote to memory of 3044 1432 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe powershell.exe PID 1432 wrote to memory of 3044 1432 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe powershell.exe PID 1432 wrote to memory of 3044 1432 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe powershell.exe PID 1432 wrote to memory of 4872 1432 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe powershell.exe PID 1432 wrote to memory of 4872 1432 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe powershell.exe PID 1432 wrote to memory of 4872 1432 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe powershell.exe PID 1432 wrote to memory of 4472 1432 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe csrss.exe PID 1432 wrote to memory of 4472 1432 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe csrss.exe PID 1432 wrote to memory of 4472 1432 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe csrss.exe PID 4472 wrote to memory of 1776 4472 csrss.exe powershell.exe PID 4472 wrote to memory of 1776 4472 csrss.exe powershell.exe PID 4472 wrote to memory of 1776 4472 csrss.exe powershell.exe PID 4472 wrote to memory of 2136 4472 csrss.exe powershell.exe PID 4472 wrote to memory of 2136 4472 csrss.exe powershell.exe PID 4472 wrote to memory of 2136 4472 csrss.exe powershell.exe PID 4472 wrote to memory of 668 4472 csrss.exe powershell.exe PID 4472 wrote to memory of 668 4472 csrss.exe powershell.exe PID 4472 wrote to memory of 668 4472 csrss.exe powershell.exe PID 4472 wrote to memory of 1528 4472 csrss.exe injector.exe PID 4472 wrote to memory of 1528 4472 csrss.exe injector.exe PID 1056 wrote to memory of 1840 1056 windefender.exe cmd.exe PID 1056 wrote to memory of 1840 1056 windefender.exe cmd.exe PID 1056 wrote to memory of 1840 1056 windefender.exe cmd.exe PID 1840 wrote to memory of 908 1840 cmd.exe sc.exe PID 1840 wrote to memory of 908 1840 cmd.exe sc.exe PID 1840 wrote to memory of 908 1840 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\b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe"C:\Users\Admin\AppData\Local\Temp\b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:876 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1852 -
C:\Users\Admin\AppData\Local\Temp\b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe"C:\Users\Admin\AppData\Local\Temp\b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.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:1432 -
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:2332 -
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:1912 -
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:4356 -
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:3044 -
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:4872 -
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:4472 -
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:1776 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:3320 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4428
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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:2136 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:668 -
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:1528 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:968 -
C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1056 -
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:1840 -
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:908
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4172
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
MD53d1d37ad71b86df215b2b037c0f5038f
SHA148a66ba751a695abdfc44f0d2c2b59b34864c214
SHA2568b8bb11c84008ea0530cdb34070ec039826eaf0484619f7c7790ce6cb265ff9a
SHA512248132beb773ee1f2fb494a6cb99aaf3b011a38e3133b1bfb4ad1f2ed3ae4b3a01ef34b758b0ab5faf712a6d7921fb3641601d414f450e273789dfe151e798ac
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54f253ac69f9ca352ea39ce7832735288
SHA18abb021d0b74e020b1d46c2e8bc1d117e729da73
SHA2561c543eef8eb85aa567c60bc01d1d23bbb6984e81ee780e8d95eea045bbe19536
SHA512a2242ee51caaae829e338dfdab5df6eb7eea6231efd89bc442d1b83e6f18c8218a31f48984407e8dfc95d066dfff2c64582346256ac9e13bca72d8f18fc21ae4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50112d64ec892e80045ef8938f58c0fd2
SHA1fb1e92b29ace751a598a83eb5706e6c7a945e621
SHA2567e1596dd0ad86ae424336befeddc626559df9ed8b9c0d5accd00a9a9d35fbf01
SHA5122bc3e34fbf06d8fb094bd3d9c198bde0997af158db861b4e48f1ae46ae4274202c0329d92bf4caee9db8f8f2f8da770534351f175428ed03f895db62c765cc28
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5cb9ccf364b50fa52233add9a72d3bd20
SHA16385ac1632199232e7c44e9a17ecde0918169313
SHA25697d306406069ece21a2d2c9b434ca5f698962fb76790fa4f076c8873fab35455
SHA512369e52c29ebc073048957189a0c421ce94d0df81cc3e499c5981e2b309b7a02ae6508d31010a0d2a8845bb0fafb14f7d0787da5956a50d0a332ca389cc58eff7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD532529e60bbfe8c54782c488eca148d61
SHA14d4d161ce5df9b99b7057847651c1a8c76635397
SHA2561da79882a9aa60f3872adaa4d0d3c4f3fca7e9a910d040daa9b7ff8f30063b87
SHA5120f280e3f34b5fa4604d63e12fb92058ad40dd17e8bc3131ee06ec63d7b6adb4b43a324c8a1859037163468a68bd401ff4ee6f23c470ba6ea5c06c93e0bfa082d
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Filesize
4.1MB
MD53b200be8ba5d94581020a32ca98a1a2b
SHA198c2e3426e493471e0f56a68bf66418e300f58d4
SHA256b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a
SHA5122ce409e26e091e11878a710fee2b1d69b809b9cc505a02359f683977c138dc7cf46c26f73fbad39f119706f5f941d23ec1041c44825a0a12537b11bc8a61e053
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec