Analysis
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max time kernel
151s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
16/05/2024, 15:47
Static task
static1
Behavioral task
behavioral1
Sample
b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe
Resource
win10v2004-20240226-en
General
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Target
b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe
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Size
4.1MB
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MD5
18a553ef1d258cebe523621e65c5d61c
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SHA1
4bd6447ea3c6f42e47e207b30d039c169d0722ac
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SHA256
b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664
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SHA512
76789a726e92b754e7bd632c222a9cc53d2af19aa3a7dd89ecb90a6cc049613b814dc1c9016481689b1784446c9c5c7e1792f471e26f520a6c7f8330700306c7
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SSDEEP
98304:83tbwrB0kIuN3D8bfUXVQCwP9Kpl7QJG8rgohSw8D2z60ht59X5:8dQIuMQA9oQJ/gXD2
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral1/memory/1424-2-0x0000000002EB0000-0x000000000379B000-memory.dmp family_glupteba behavioral1/memory/1424-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1424-4-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1424-23-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1424-27-0x0000000002EB0000-0x000000000379B000-memory.dmp family_glupteba behavioral1/memory/1424-50-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1424-62-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1692-64-0x0000000002920000-0x0000000002D28000-memory.dmp family_glupteba behavioral1/memory/1692-92-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1692-143-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4044-198-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4044-229-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4044-239-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4044-240-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4044-243-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4044-245-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4044-247-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4044-249-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4704 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4044 csrss.exe 3324 injector.exe 3444 windefender.exe 4168 windefender.exe -
resource yara_rule behavioral1/files/0x0008000000023281-232.dat upx behavioral1/memory/3444-233-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4168-236-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3444-238-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4168-241-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4168-244-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.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 opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log 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 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 1528 sc.exe -
pid Process 2464 powershell.exe 4332 powershell.exe 2144 powershell.exe 3308 powershell.exe 3992 powershell.exe 636 powershell.exe 2964 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 1388 schtasks.exe 4344 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1932 = "Russia TZ 11 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-281 = "Central Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\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\22\52C64B7E\@tzres.dll,-362 = "GTB Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-121 = "SA Pacific Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates 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\22\52C64B7E\@tzres.dll,-402 = "Arabic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-401 = "Arabic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2181 = "Astrakhan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-652 = "AUS Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-931 = "Coordinated Universal Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-452 = "Caucasus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-981 = "Kamchatka Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs 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\22\52C64B7E\@tzres.dll,-82 = "Atlantic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2752 = "Tomsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1411 = "Syria Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2141 = "Transbaikal Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-435 = "Georgian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-492 = "India Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-532 = "Sri Lanka Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-11 = "Azores Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-621 = "Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-431 = "Iran Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2512 = "Lord Howe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3992 powershell.exe 3992 powershell.exe 1424 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 1424 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 636 powershell.exe 636 powershell.exe 636 powershell.exe 1692 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 1692 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 1692 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 1692 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 1692 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 1692 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 1692 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 1692 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 1692 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 1692 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 2964 powershell.exe 2964 powershell.exe 2964 powershell.exe 2464 powershell.exe 2464 powershell.exe 2464 powershell.exe 4332 powershell.exe 4332 powershell.exe 4332 powershell.exe 2144 powershell.exe 2144 powershell.exe 2144 powershell.exe 3308 powershell.exe 3308 powershell.exe 3308 powershell.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 4044 csrss.exe 4044 csrss.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 4044 csrss.exe 4044 csrss.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 4044 csrss.exe 4044 csrss.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3992 powershell.exe Token: SeDebugPrivilege 1424 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Token: SeImpersonatePrivilege 1424 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe Token: SeDebugPrivilege 636 powershell.exe Token: SeDebugPrivilege 2964 powershell.exe Token: SeDebugPrivilege 2464 powershell.exe Token: SeDebugPrivilege 4332 powershell.exe Token: SeDebugPrivilege 2144 powershell.exe Token: SeDebugPrivilege 3308 powershell.exe Token: SeSystemEnvironmentPrivilege 4044 csrss.exe Token: SeSecurityPrivilege 1528 sc.exe Token: SeSecurityPrivilege 1528 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1424 wrote to memory of 3992 1424 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 91 PID 1424 wrote to memory of 3992 1424 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 91 PID 1424 wrote to memory of 3992 1424 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 91 PID 1692 wrote to memory of 636 1692 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 102 PID 1692 wrote to memory of 636 1692 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 102 PID 1692 wrote to memory of 636 1692 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 102 PID 1692 wrote to memory of 4132 1692 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 105 PID 1692 wrote to memory of 4132 1692 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 105 PID 4132 wrote to memory of 4704 4132 cmd.exe 107 PID 4132 wrote to memory of 4704 4132 cmd.exe 107 PID 1692 wrote to memory of 2964 1692 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 108 PID 1692 wrote to memory of 2964 1692 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 108 PID 1692 wrote to memory of 2964 1692 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 108 PID 1692 wrote to memory of 2464 1692 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 110 PID 1692 wrote to memory of 2464 1692 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 110 PID 1692 wrote to memory of 2464 1692 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 110 PID 1692 wrote to memory of 4044 1692 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 112 PID 1692 wrote to memory of 4044 1692 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 112 PID 1692 wrote to memory of 4044 1692 b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe 112 PID 4044 wrote to memory of 4332 4044 csrss.exe 113 PID 4044 wrote to memory of 4332 4044 csrss.exe 113 PID 4044 wrote to memory of 4332 4044 csrss.exe 113 PID 4044 wrote to memory of 2144 4044 csrss.exe 118 PID 4044 wrote to memory of 2144 4044 csrss.exe 118 PID 4044 wrote to memory of 2144 4044 csrss.exe 118 PID 4044 wrote to memory of 3308 4044 csrss.exe 121 PID 4044 wrote to memory of 3308 4044 csrss.exe 121 PID 4044 wrote to memory of 3308 4044 csrss.exe 121 PID 4044 wrote to memory of 3324 4044 csrss.exe 123 PID 4044 wrote to memory of 3324 4044 csrss.exe 123 PID 3444 wrote to memory of 4932 3444 windefender.exe 129 PID 3444 wrote to memory of 4932 3444 windefender.exe 129 PID 3444 wrote to memory of 4932 3444 windefender.exe 129 PID 4932 wrote to memory of 1528 4932 cmd.exe 130 PID 4932 wrote to memory of 1528 4932 cmd.exe 130 PID 4932 wrote to memory of 1528 4932 cmd.exe 130 -
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\b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe"C:\Users\Admin\AppData\Local\Temp\b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1424 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3992
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C:\Users\Admin\AppData\Local\Temp\b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.exe"C:\Users\Admin\AppData\Local\Temp\b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664.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:1692 -
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:636
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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:4132 -
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:4704
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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:2964
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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:2464
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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:4044 -
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:4332
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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:1388
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3628
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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:2144
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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:3308
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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:3324
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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:4344
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3444 -
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:4932 -
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:1528
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=2232 --field-trial-handle=3060,i,1774866140584649235,8085848018931772189,262144 --variations-seed-version /prefetch:81⤵PID:2272
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4168
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
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD566ea380979e76e2fa9aa8f35059782c4
SHA156f4562b428b619d87ba09c7e3b862eb41d9bffb
SHA25654ed83cd5e7997df0244021253778807598cf7a01e1b70fab258c64087eb0fd5
SHA512c9939601f8bcf8fc62bada00db5732b86c03b92a9b5659dc8d2276c931f77ec9eeacde77fe832b5c2f6391544b253901cc6ec5551ca5adb8a13582d4f61d4166
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50ee0d7b9da43d0405702cc3dd13aafa3
SHA1fbd139293a6edc1306e6ef0f2196e10f1d7d7a5d
SHA256629750bdfcc8e6661573e0ad73be682e58d79ac659dc0b8c80f451a37656d343
SHA512319e1452148d6d88c00d8f58c6db62436b1f04ec2fde5384547f0c2365eabe0ef6a9805a47ce1f43bbc61dfa4cbf582ca3eced2d03c8bcbe400fbea668b92217
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5728aec125dbe34f9141150a4471670fd
SHA172f8eb0740fdeb6dc50ec70d53961acf91c05135
SHA256849dc61e337420efb0e2dc9e7e418f844a043e4a6358e77d39f774bd5fb6525c
SHA5122348704fb22b7ebec51d768b540f528e90e66cc9aa3f4c7e125690408397b209041521c32186dcde9cfeb44ac4d683b21d2eccf076eb4f03ba5f3933d8d97cde
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD556107d59f55faa8b62513e0ed7737ee9
SHA173e52e84f1e60244340d51a97a73482e6c79834a
SHA256939376e1a214795be4a9a4a58f9ed3661756cfc9e147b5650973ea6d466a84a4
SHA512262a64671462679fe8e7de50ea1ca8b99c642dd752ba1f526def2d052d99cfef2a60e02c969d82998527fd062c0d6f34e72c0f08e6c3a89da65ad3431c635e51
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a6f678d6d5fa393c27830e4506c96211
SHA1891ae24c8b7325f293b3df487f1a88b7fb6548e4
SHA256a29d6b787f46ef155066d3e121f7ac2945696bdcd59ada52aedd97cc3c293b05
SHA51202ff3dea6ac8b318233df239886cb27e34d43281e87e18ecb2a871832e326202e78d17c0eb7f31ef2f9bf87994e14b036cd1c5869fc7ab6a2ecd47a1b6a8b3af
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Filesize
4.1MB
MD518a553ef1d258cebe523621e65c5d61c
SHA14bd6447ea3c6f42e47e207b30d039c169d0722ac
SHA256b8f82a1752d1752e01cb87e4651174c0b628b125aca23c0fde9f3336c2904664
SHA51276789a726e92b754e7bd632c222a9cc53d2af19aa3a7dd89ecb90a6cc049613b814dc1c9016481689b1784446c9c5c7e1792f471e26f520a6c7f8330700306c7
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec