Analysis
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max time kernel
150s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-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 17 IoCs
resource yara_rule behavioral2/memory/2492-2-0x0000000004C90000-0x000000000557B000-memory.dmp family_glupteba behavioral2/memory/2492-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2492-52-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/2492-54-0x0000000004C90000-0x000000000557B000-memory.dmp family_glupteba behavioral2/memory/2492-79-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1488-77-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/1488-128-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4424-205-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4424-216-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4424-218-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4424-222-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4424-225-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4424-228-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4424-231-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4424-233-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4424-237-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4424-240-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1036 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4424 csrss.exe 1944 injector.exe 4496 windefender.exe 2392 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa27-208.dat upx behavioral2/memory/4496-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2392-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4496-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2392-219-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2392-223-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1672260578-815027929-964132517-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-1672260578-815027929-964132517-1000\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.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 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 -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 4608 sc.exe -
pid Process 2388 powershell.exe 1340 powershell.exe 1228 powershell.exe 1380 powershell.exe 1348 powershell.exe 4916 powershell.exe 2032 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 2132 schtasks.exe 2100 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,-2842 = "Saratov Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1022 = "Bangladesh Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.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,-751 = "Tonga Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\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\trust\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\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\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight 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,-182 = "Mountain Standard Time (Mexico)" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1971 = "Belarus Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.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\@tzres.dll,-562 = "SE Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates 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\C:\Windows\system32\,@tzres.dll,-42 = "E. South America Standard Time" 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,-1832 = "Russia TZ 2 Standard Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-131 = "US Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-892 = "Morocco Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.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\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.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,-2322 = "Sakhalin Standard Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2431 = "Cuba Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-104 = "Central Brazilian Daylight Time" 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,-2511 = "Lord Howe Daylight Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time" b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1228 powershell.exe 1228 powershell.exe 2492 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 2492 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 1380 powershell.exe 1380 powershell.exe 1488 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 1488 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 1488 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 1488 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 1488 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 1488 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 1488 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 1488 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 1488 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 1488 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 1348 powershell.exe 1348 powershell.exe 4916 powershell.exe 4916 powershell.exe 2032 powershell.exe 2032 powershell.exe 2388 powershell.exe 2388 powershell.exe 1340 powershell.exe 1340 powershell.exe 1944 injector.exe 1944 injector.exe 1944 injector.exe 1944 injector.exe 1944 injector.exe 1944 injector.exe 4424 csrss.exe 4424 csrss.exe 1944 injector.exe 1944 injector.exe 1944 injector.exe 1944 injector.exe 1944 injector.exe 1944 injector.exe 4424 csrss.exe 4424 csrss.exe 1944 injector.exe 1944 injector.exe 4424 csrss.exe 4424 csrss.exe 1944 injector.exe 1944 injector.exe 1944 injector.exe 1944 injector.exe 1944 injector.exe 1944 injector.exe 1944 injector.exe 1944 injector.exe 1944 injector.exe 1944 injector.exe 1944 injector.exe 1944 injector.exe 1944 injector.exe 1944 injector.exe 1944 injector.exe 1944 injector.exe 1944 injector.exe 1944 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 1228 powershell.exe Token: SeDebugPrivilege 2492 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Token: SeImpersonatePrivilege 2492 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe Token: SeDebugPrivilege 1380 powershell.exe Token: SeDebugPrivilege 1348 powershell.exe Token: SeDebugPrivilege 4916 powershell.exe Token: SeDebugPrivilege 2032 powershell.exe Token: SeDebugPrivilege 2388 powershell.exe Token: SeDebugPrivilege 1340 powershell.exe Token: SeSystemEnvironmentPrivilege 4424 csrss.exe Token: SeSecurityPrivilege 4608 sc.exe Token: SeSecurityPrivilege 4608 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 2492 wrote to memory of 1228 2492 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 79 PID 2492 wrote to memory of 1228 2492 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 79 PID 2492 wrote to memory of 1228 2492 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 79 PID 1488 wrote to memory of 1380 1488 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 84 PID 1488 wrote to memory of 1380 1488 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 84 PID 1488 wrote to memory of 1380 1488 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 84 PID 1488 wrote to memory of 2352 1488 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 86 PID 1488 wrote to memory of 2352 1488 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 86 PID 2352 wrote to memory of 1036 2352 cmd.exe 88 PID 2352 wrote to memory of 1036 2352 cmd.exe 88 PID 1488 wrote to memory of 1348 1488 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 89 PID 1488 wrote to memory of 1348 1488 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 89 PID 1488 wrote to memory of 1348 1488 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 89 PID 1488 wrote to memory of 4916 1488 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 91 PID 1488 wrote to memory of 4916 1488 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 91 PID 1488 wrote to memory of 4916 1488 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 91 PID 1488 wrote to memory of 4424 1488 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 93 PID 1488 wrote to memory of 4424 1488 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 93 PID 1488 wrote to memory of 4424 1488 b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a.exe 93 PID 4424 wrote to memory of 2032 4424 csrss.exe 94 PID 4424 wrote to memory of 2032 4424 csrss.exe 94 PID 4424 wrote to memory of 2032 4424 csrss.exe 94 PID 4424 wrote to memory of 2388 4424 csrss.exe 100 PID 4424 wrote to memory of 2388 4424 csrss.exe 100 PID 4424 wrote to memory of 2388 4424 csrss.exe 100 PID 4424 wrote to memory of 1340 4424 csrss.exe 102 PID 4424 wrote to memory of 1340 4424 csrss.exe 102 PID 4424 wrote to memory of 1340 4424 csrss.exe 102 PID 4424 wrote to memory of 1944 4424 csrss.exe 104 PID 4424 wrote to memory of 1944 4424 csrss.exe 104 PID 4496 wrote to memory of 868 4496 windefender.exe 110 PID 4496 wrote to memory of 868 4496 windefender.exe 110 PID 4496 wrote to memory of 868 4496 windefender.exe 110 PID 868 wrote to memory of 4608 868 cmd.exe 111 PID 868 wrote to memory of 4608 868 cmd.exe 111 PID 868 wrote to memory of 4608 868 cmd.exe 111 -
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:2492 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1228
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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:1488 -
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:1380
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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:2352 -
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:1036
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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:1348
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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:4916
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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:4424 -
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:2032
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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:2132
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4376
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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:2388
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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:1340
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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:1944
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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:2100
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4496 -
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:868 -
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:4608
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2392
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
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5503346830dc4501cecf595daae1c9ab0
SHA1a5f815c67e117d3e9da57129048137c8a34d7196
SHA256d15170899e7fd15f58b08ca5a7864ec3f87a338e93eea8573da982877e385449
SHA51209fdecdb8756e74dfcf56c4fbaa82cce1ab4dbf8d2e197c24b6ef28894b5f7beff6505f595282a4a7fad2a1da8a74167102247b0a049670423a54d048a058f21
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5514d18e7e0057033c361a2fb51cc654e
SHA1585015b2c4e7a46d2fea597d191af68af43b62c2
SHA256ed75e17bd7d82883d197d72fa82665ce337827dc3e5e82f7361bce54f8e5b04e
SHA5122085f9bcc865d552b47e7264d46a0ef64270d1191dfc60f6ed975f904fb85fbd84dd697c6a1e615b9251beeff8f0aaf67b3dbcbd76bb269c31a7b5ba24cab3b4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD535cb6c78665b4186170c2f8b0450d820
SHA196ab83a9b8a24ff04ec6146a19ae5364f6063152
SHA256714650da1671ad1ba993989f4e793c66e538f0300a43ca9dd10da321744c8459
SHA51221bf87f2b22ed67016e335850605c75a2186c23f84c29ccc11371b8c866c946b0fd43398cc00896344a2b89155009e2aa40b5147fae17f77f45d0c7507e02e17
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50409dc21d3d05314b46233a8550d4a0c
SHA1027ca6173db906bffca99e9b8bddabdfdde5add2
SHA256ec57308a6a87baa7a44abdd512490b649da8e1bc36a695c2cab0461c78248693
SHA512d8a1cfebc8fa00c3e70f365e646ccfd7ec641d5328e66fa642f30a8696da4f0c6acea82c5f265284bc7c2558a79f6ace0a7fc23e6ff599ae76e6fa28a8a2038e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56e686edb6ca46abe3ede5ec84d6f1961
SHA1cd628c4c92fced9d4363ccb0472218abf99e2529
SHA256de7890c6eee7945b7a2dfe750773a43ee94a0662d5bc9f1d120925a3397735a5
SHA512947499d9181786b41bab7a58f5ef9baadb4d18f806b52d75c76aeacda4da681b48c2bf130dbabf50b9a5305941105f724408964a973113fcfd01cf6cbd449771
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Filesize
4.1MB
MD53b200be8ba5d94581020a32ca98a1a2b
SHA198c2e3426e493471e0f56a68bf66418e300f58d4
SHA256b8f79602544a39a4e40e81b573ec904cc623eb2621a25a3c8985f3a1bfb7884a
SHA5122ce409e26e091e11878a710fee2b1d69b809b9cc505a02359f683977c138dc7cf46c26f73fbad39f119706f5f941d23ec1041c44825a0a12537b11bc8a61e053
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec