Analysis
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max time kernel
140s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 20:44
Static task
static1
Behavioral task
behavioral1
Sample
8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe
Resource
win10v2004-20240426-en
General
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Target
8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe
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Size
4.1MB
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MD5
e6612aa039c40373139d622d400c5b75
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SHA1
bcb70d721ad4a37ff658b8541b3d078fbea82a53
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SHA256
8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835
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SHA512
51ff449a4303079f4ccedd62fb047d3b027d184b9faab7bbb5367c1a2b31aa60e51049d3bc648577675522eecc1997eeb04f3d2bbc1ac4d1153f6c67ab05001e
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SSDEEP
98304:b7sgfTqZm7fywQIpjGUn+cmloZHued8miXbTsPufBvNe:bzgmDywQg+foZ8mw6So
Malware Config
Signatures
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Glupteba payload 17 IoCs
Processes:
resource yara_rule behavioral2/memory/3200-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3200-2-0x0000000004970000-0x000000000525B000-memory.dmp family_glupteba behavioral2/memory/3200-97-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3200-98-0x0000000004970000-0x000000000525B000-memory.dmp family_glupteba behavioral2/memory/1608-124-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3200-158-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4912-200-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4912-211-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4912-214-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4912-217-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4912-220-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4912-223-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4912-226-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4912-229-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4912-232-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4912-235-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4912-238-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 2644 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 4912 csrss.exe 2676 injector.exe 4188 windefender.exe 4936 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x000200000002a9f8-204.dat upx behavioral2/memory/4188-205-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4936-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4188-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4936-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4936-219-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe Set value (str) \REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\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 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.
Processes:
8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe -
Drops file in Windows directory 4 IoCs
Processes:
8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe File created C:\Windows\rss\csrss.exe 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.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 4280 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 2692 powershell.exe 2944 powershell.exe 3528 powershell.exe 2296 powershell.exe 3484 powershell.exe 5100 powershell.exe 4928 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 1612 schtasks.exe 3908 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exepowershell.exewindefender.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,-2181 = "Astrakhan Daylight Time" 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2492 = "Aus Central W. Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-448 = "Azerbaijan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time" 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1842 = "Russia TZ 4 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1501 = "Turkey Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-402 = "Arabic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2532 = "Chatham Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time" 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-372 = "Jerusalem Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time" 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-671 = "AUS Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2431 = "Cuba Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2891 = "Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-842 = "Argentina Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2182 = "Astrakhan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-12 = "Azores Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-721 = "Central Pacific Daylight Time" windefender.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\@tzres.dll,-442 = "Arabian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-512 = "Central Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-681 = "E. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time" 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-42 = "E. South America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-131 = "US Eastern Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1722 = "Libya Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exepowershell.exe8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 3528 powershell.exe 3528 powershell.exe 3200 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe 3200 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe 2296 powershell.exe 2296 powershell.exe 1608 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe 1608 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe 1608 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe 1608 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe 1608 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe 1608 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe 1608 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe 1608 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe 1608 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe 1608 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe 3484 powershell.exe 3484 powershell.exe 5100 powershell.exe 5100 powershell.exe 4928 powershell.exe 4928 powershell.exe 2692 powershell.exe 2692 powershell.exe 2944 powershell.exe 2944 powershell.exe 2676 injector.exe 2676 injector.exe 2676 injector.exe 2676 injector.exe 2676 injector.exe 2676 injector.exe 2676 injector.exe 2676 injector.exe 4912 csrss.exe 4912 csrss.exe 2676 injector.exe 2676 injector.exe 2676 injector.exe 2676 injector.exe 2676 injector.exe 2676 injector.exe 4912 csrss.exe 4912 csrss.exe 2676 injector.exe 2676 injector.exe 4912 csrss.exe 4912 csrss.exe 2676 injector.exe 2676 injector.exe 2676 injector.exe 2676 injector.exe 2676 injector.exe 2676 injector.exe 2676 injector.exe 2676 injector.exe 2676 injector.exe 2676 injector.exe 2676 injector.exe 2676 injector.exe 2676 injector.exe 2676 injector.exe 2676 injector.exe 2676 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 3528 powershell.exe Token: SeDebugPrivilege 3200 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe Token: SeImpersonatePrivilege 3200 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe Token: SeDebugPrivilege 2296 powershell.exe Token: SeDebugPrivilege 3484 powershell.exe Token: SeDebugPrivilege 5100 powershell.exe Token: SeDebugPrivilege 4928 powershell.exe Token: SeDebugPrivilege 2692 powershell.exe Token: SeDebugPrivilege 2944 powershell.exe Token: SeSystemEnvironmentPrivilege 4912 csrss.exe Token: SeSecurityPrivilege 4280 sc.exe Token: SeSecurityPrivilege 4280 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 3200 wrote to memory of 3528 3200 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe 82 PID 3200 wrote to memory of 3528 3200 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe 82 PID 3200 wrote to memory of 3528 3200 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe 82 PID 1608 wrote to memory of 2296 1608 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe 87 PID 1608 wrote to memory of 2296 1608 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe 87 PID 1608 wrote to memory of 2296 1608 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe 87 PID 1608 wrote to memory of 2740 1608 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe 89 PID 1608 wrote to memory of 2740 1608 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe 89 PID 2740 wrote to memory of 2644 2740 cmd.exe 91 PID 2740 wrote to memory of 2644 2740 cmd.exe 91 PID 1608 wrote to memory of 3484 1608 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe 92 PID 1608 wrote to memory of 3484 1608 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe 92 PID 1608 wrote to memory of 3484 1608 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe 92 PID 1608 wrote to memory of 5100 1608 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe 94 PID 1608 wrote to memory of 5100 1608 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe 94 PID 1608 wrote to memory of 5100 1608 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe 94 PID 1608 wrote to memory of 4912 1608 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe 96 PID 1608 wrote to memory of 4912 1608 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe 96 PID 1608 wrote to memory of 4912 1608 8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe 96 PID 4912 wrote to memory of 4928 4912 csrss.exe 97 PID 4912 wrote to memory of 4928 4912 csrss.exe 97 PID 4912 wrote to memory of 4928 4912 csrss.exe 97 PID 4912 wrote to memory of 2692 4912 csrss.exe 103 PID 4912 wrote to memory of 2692 4912 csrss.exe 103 PID 4912 wrote to memory of 2692 4912 csrss.exe 103 PID 4912 wrote to memory of 2944 4912 csrss.exe 105 PID 4912 wrote to memory of 2944 4912 csrss.exe 105 PID 4912 wrote to memory of 2944 4912 csrss.exe 105 PID 4912 wrote to memory of 2676 4912 csrss.exe 107 PID 4912 wrote to memory of 2676 4912 csrss.exe 107 PID 4188 wrote to memory of 420 4188 windefender.exe 113 PID 4188 wrote to memory of 420 4188 windefender.exe 113 PID 4188 wrote to memory of 420 4188 windefender.exe 113 PID 420 wrote to memory of 4280 420 cmd.exe 114 PID 420 wrote to memory of 4280 420 cmd.exe 114 PID 420 wrote to memory of 4280 420 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\8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe"C:\Users\Admin\AppData\Local\Temp\8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3200 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3528
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C:\Users\Admin\AppData\Local\Temp\8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.exe"C:\Users\Admin\AppData\Local\Temp\8645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835.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:1608 -
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:2296
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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:2740 -
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:2644
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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:3484
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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:5100
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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:4912 -
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:4928
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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:1612
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3328
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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:2692
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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:2944
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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:2676
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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:3908
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4188 -
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:420 -
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:4280
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4936
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
MD5d55b9a2cf5b72865a16f73dd24a180fc
SHA14b68e9243791b7a2be92938ed96b16a3bfbb4fe5
SHA256b4c617d4ae412689ded60f7ddf67d7cb2b15bed07e8d5e20d1fc1df88e18ea05
SHA512e1187873336c5c4a101b013a9dc16034e527912a6473dc2c9b49c59477a02286000e96a7a80cd1bb16fef9e379856a68d185c9a96fd3909b970cce3eb62b7246
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52751b8c38aef81cc07d2119dfa701588
SHA1db8fa6dcc7261399b1d34c3f97cb9530c107b45a
SHA256b0949c9cd91411fe0868cd1f72310b111cd591e8e163ada60ef5cc86ee298706
SHA5127bdf2d001e7b913c3029ba0478f6499feb7a0e7cce2151092a40af193f7e5ddde50551936abfa72aa84451c9bf558985d0af2e7706461e90c016a1ffa809a115
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ae80836cda8a003d157fa8a3cc1df535
SHA19d9d96039e0f893ada1f92c1d407245b51d2e845
SHA256cb4ff4f330fda75535ac637f0e60e7c4c04882d353931a38fb973d0802fa0cd9
SHA512b9558538ab8769a6baba8c17d2c2ab77b35dfea1c4df648cb98262d26844999c5bcb9c6ef77e8a570af5f601b3dda68311219ec253ae7eb66ff423199952112f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a83fcf21730326e2c4a3a5ab96daa8eb
SHA17c85880dbd80326a59c8224bba99609616f63d50
SHA256865f82e20da9f495c79c4e6d7c6ae450ebd6b637b2de892857082e87d4703cba
SHA5129ca85a79c667585163e7ee05c4d81fa7ec6b2cb61d0278764f017fc62473a3d11bc1f74484e3ebab99b7047bf9bf149ba10571d3af5708250a6d40b0738fa143
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d16e3bee166bd6e9eeccad0b7a66c061
SHA12db3f775fbb7eaeacaf776483364e8bc0ca0f543
SHA256853b577c73655fe2436f237ba80d3ac9a058168176fbe81b91b03b9c6c9532b3
SHA512671aac38ff4a5df64305fd40e750c0e3a95195b3c35c120dc4deb93459711f75432dc4ce7dd97d940df983edd5ac3c577db316dfc7496d90b2c71991a75a456c
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Filesize
4.1MB
MD5e6612aa039c40373139d622d400c5b75
SHA1bcb70d721ad4a37ff658b8541b3d078fbea82a53
SHA2568645b78314010775af0bd7650d09b56ec5e0a25b51afe02ab9de5d64e50e2835
SHA51251ff449a4303079f4ccedd62fb047d3b027d184b9faab7bbb5367c1a2b31aa60e51049d3bc648577675522eecc1997eeb04f3d2bbc1ac4d1153f6c67ab05001e
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec