Analysis
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max time kernel
150s -
max time network
139s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
16-05-2024 09:50
Static task
static1
Behavioral task
behavioral1
Sample
f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe
Resource
win10v2004-20240426-en
General
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Target
f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe
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Size
4.1MB
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MD5
fb9cf7d877427716649a6c00c39b4e03
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SHA1
1a8bc5e39e9160e0549bd4481a274c98f3d3feef
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SHA256
f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7
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SHA512
2cb21c3ba7cb9ae84e21db719b5054e43d3fe264922fdddbc095e1f6f4a809aab504b1e2837b93150cd3bdd545355fb090031ab43b2ee6b8ac27792594053ae4
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SSDEEP
98304:9H49zrfgobu9aDMWAg4dPDb/NQHvakIF/A8L3rqLZk5t2qZ3qL2LAZ50:Ur7OagDbOPW/F2k5tRZaLrS
Malware Config
Signatures
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Glupteba payload 18 IoCs
Processes:
resource yara_rule behavioral2/memory/3396-2-0x0000000002E30000-0x000000000371B000-memory.dmp family_glupteba behavioral2/memory/3396-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3396-75-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3396-76-0x0000000002E30000-0x000000000371B000-memory.dmp family_glupteba behavioral2/memory/1156-122-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1156-196-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3024-203-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3024-216-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3024-219-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3024-223-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3024-227-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3024-231-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3024-236-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3024-239-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3024-243-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3024-247-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3024-252-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3024-255-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 2020 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 3024 csrss.exe 2656 injector.exe 4904 windefender.exe 4304 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x001a00000002ab25-209.dat upx behavioral2/memory/4904-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4304-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4904-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4304-220-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4304-228-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
Processes:
csrss.exedescription ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File 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 -
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:
f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe -
Drops file in Windows directory 4 IoCs
Processes:
f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe File created C:\Windows\rss\csrss.exe f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid Process 1692 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 2000 powershell.exe 872 powershell.exe 1536 powershell.exe 1272 powershell.exe 4280 powershell.exe 1064 powershell.exe 3580 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 3504 schtasks.exe 1144 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exewindefender.exepowershell.exepowershell.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,-1722 = "Libya Standard Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-872 = "Pakistan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3051 = "Qyzylorda Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.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\@tzres.dll,-2321 = "Sakhalin Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2771 = "Omsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-211 = "Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-792 = "SA Western Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs 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,-2342 = "Haiti Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-432 = "Iran Standard 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" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs 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,-132 = "US Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.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,-161 = "Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.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" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-71 = "Newfoundland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 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\@tzres.dll,-111 = "Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-371 = "Jerusalem Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-261 = "GMT Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-831 = "SA Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-332 = "E. Europe Standard Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates 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,-2162 = "Altai Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-335 = "Jordan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-91 = "Pacific SA Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1892 = "Russia TZ 3 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2891 = "Sudan Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exef435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exepowershell.exef435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 4280 powershell.exe 4280 powershell.exe 3396 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 3396 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 1064 powershell.exe 1064 powershell.exe 1156 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 1156 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 1156 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 1156 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 1156 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 1156 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 1156 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 1156 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 1156 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 1156 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 3580 powershell.exe 3580 powershell.exe 2000 powershell.exe 2000 powershell.exe 872 powershell.exe 872 powershell.exe 1536 powershell.exe 1536 powershell.exe 1272 powershell.exe 1272 powershell.exe 2656 injector.exe 2656 injector.exe 2656 injector.exe 2656 injector.exe 2656 injector.exe 2656 injector.exe 3024 csrss.exe 3024 csrss.exe 2656 injector.exe 2656 injector.exe 2656 injector.exe 2656 injector.exe 2656 injector.exe 2656 injector.exe 3024 csrss.exe 3024 csrss.exe 2656 injector.exe 2656 injector.exe 2656 injector.exe 2656 injector.exe 3024 csrss.exe 3024 csrss.exe 2656 injector.exe 2656 injector.exe 2656 injector.exe 2656 injector.exe 2656 injector.exe 2656 injector.exe 2656 injector.exe 2656 injector.exe 2656 injector.exe 2656 injector.exe 2656 injector.exe 2656 injector.exe 2656 injector.exe 2656 injector.exe 2656 injector.exe 2656 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exef435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 4280 powershell.exe Token: SeDebugPrivilege 3396 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Token: SeImpersonatePrivilege 3396 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe Token: SeDebugPrivilege 1064 powershell.exe Token: SeDebugPrivilege 3580 powershell.exe Token: SeDebugPrivilege 2000 powershell.exe Token: SeDebugPrivilege 872 powershell.exe Token: SeDebugPrivilege 1536 powershell.exe Token: SeDebugPrivilege 1272 powershell.exe Token: SeSystemEnvironmentPrivilege 3024 csrss.exe Token: SeSecurityPrivilege 1692 sc.exe Token: SeSecurityPrivilege 1692 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exef435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 3396 wrote to memory of 4280 3396 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 82 PID 3396 wrote to memory of 4280 3396 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 82 PID 3396 wrote to memory of 4280 3396 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 82 PID 1156 wrote to memory of 1064 1156 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 87 PID 1156 wrote to memory of 1064 1156 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 87 PID 1156 wrote to memory of 1064 1156 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 87 PID 1156 wrote to memory of 3892 1156 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 89 PID 1156 wrote to memory of 3892 1156 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 89 PID 3892 wrote to memory of 2020 3892 cmd.exe 91 PID 3892 wrote to memory of 2020 3892 cmd.exe 91 PID 1156 wrote to memory of 3580 1156 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 92 PID 1156 wrote to memory of 3580 1156 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 92 PID 1156 wrote to memory of 3580 1156 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 92 PID 1156 wrote to memory of 2000 1156 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 94 PID 1156 wrote to memory of 2000 1156 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 94 PID 1156 wrote to memory of 2000 1156 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 94 PID 1156 wrote to memory of 3024 1156 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 96 PID 1156 wrote to memory of 3024 1156 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 96 PID 1156 wrote to memory of 3024 1156 f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe 96 PID 3024 wrote to memory of 872 3024 csrss.exe 97 PID 3024 wrote to memory of 872 3024 csrss.exe 97 PID 3024 wrote to memory of 872 3024 csrss.exe 97 PID 3024 wrote to memory of 1536 3024 csrss.exe 102 PID 3024 wrote to memory of 1536 3024 csrss.exe 102 PID 3024 wrote to memory of 1536 3024 csrss.exe 102 PID 3024 wrote to memory of 1272 3024 csrss.exe 105 PID 3024 wrote to memory of 1272 3024 csrss.exe 105 PID 3024 wrote to memory of 1272 3024 csrss.exe 105 PID 3024 wrote to memory of 2656 3024 csrss.exe 107 PID 3024 wrote to memory of 2656 3024 csrss.exe 107 PID 4904 wrote to memory of 2912 4904 windefender.exe 113 PID 4904 wrote to memory of 2912 4904 windefender.exe 113 PID 4904 wrote to memory of 2912 4904 windefender.exe 113 PID 2912 wrote to memory of 1692 2912 cmd.exe 114 PID 2912 wrote to memory of 1692 2912 cmd.exe 114 PID 2912 wrote to memory of 1692 2912 cmd.exe 114 -
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\f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe"C:\Users\Admin\AppData\Local\Temp\f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3396 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4280
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C:\Users\Admin\AppData\Local\Temp\f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.exe"C:\Users\Admin\AppData\Local\Temp\f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7.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:1156 -
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:1064
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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:3892 -
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:2020
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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:3580
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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:2000
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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:3024 -
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:872
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:3504
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3952
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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:1536
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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:1272
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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:2656
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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:1144
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4904 -
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:2912 -
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:1692
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4304
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
MD53226f1970c5aa2867668b88a9cee76a8
SHA160a4d69501f410bdf0cf9ac91245d3bec538f901
SHA25672b0a410a5ed2d6a26416c18878ef9f4a9c35d71c518e75b8f84d7a553740788
SHA512fe5ebeef2cb57643cb83ad76bad7bd257d7d602045657d78a96f1aca20c0da4e87dd34c77ea62d9ebb7db2b714e1d94f9b3ccede904a6013ee19fe18f6a557ec
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5abf81427b0f95d62f599a27c70645e26
SHA1c087fed670e308b08f81f9ba74bc3529e90c96dc
SHA256f8aef374233867024936143336bd0aa3e2fb078ff2ae630192d69ee6500e1afe
SHA5124f47e2d4c2945dad6de7949d0fd92d98ba7e6e88ee769f68b29c8bad804889b0347d35cba51ab2c2ef8339b98ff6d5a63c816c46e5cb8b01d4d6bd510760181c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55ee0919780357d4556fd56085389734d
SHA14583daaabdd51b996619d8376ac616ed79ef70df
SHA25633377aa79c467fbf7fb6ec31e34c94511225e88b6dfb64c5a69c34ffc28cb0b1
SHA512ed7edf545f58b14d6f12de36223fab9cc4515984d7e697a3ebc9253778a3fb18499a58b1296957989933fc4361c58875e955e2163b425387340b5142420841a8
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5188f9a915121d635b6db425de20c7a0e
SHA1d9a5f1e683e7430a5c6f70e278183357fc595141
SHA256c3a95dcd44dd122c5fc731de8562da250242e90294b8aa4bc4fcd17e2656a6fe
SHA51230c9bd70c472dd242a1f925f2a1945b438ea6836b3fb711fc331996a8deec83ffa43b2f0f6dab1551b69d8beab88623457b4f17d1a5d3444937d6cd7e517aee6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59f1cb491e7a3bdef8b82398d99f7a5cd
SHA1cdb877d12ca255b48163404fbbb85d15fd729c62
SHA256c1d5fdeae63a5af4b5fcb83931af7e22e53d77c6a31764aa5e4cfa4f5c735ff3
SHA5129ce47437a15c93b7463a7c6f2abe376225007c4a3c7218770dc33565034d35ee958d2e89c1e5160a773de4e8daf280f9c2632faf38ce84f9af5a3e853253f131
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Filesize
4.1MB
MD5fb9cf7d877427716649a6c00c39b4e03
SHA11a8bc5e39e9160e0549bd4481a274c98f3d3feef
SHA256f435ce76640a6820de2cb8ce2af78f7f30b51f342e7157a6b0a9814e390f34b7
SHA5122cb21c3ba7cb9ae84e21db719b5054e43d3fe264922fdddbc095e1f6f4a809aab504b1e2837b93150cd3bdd545355fb090031ab43b2ee6b8ac27792594053ae4
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec