Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
10/04/2024, 04:53
Static task
static1
Behavioral task
behavioral1
Sample
55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe
Resource
win10v2004-20240226-en
General
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Target
55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe
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Size
4.2MB
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MD5
de998f2b8408d7158a1eed574f6ead84
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SHA1
eb4fce52f81a8347b2872fb88799f9f7cc712432
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SHA256
55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5
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SHA512
35271c554a9770814d038f80684091af750bff71b39eb8267b789489b58cf8390855261d06dd33a6c304a2106ec2c691ba95ecfd1e1cb87af432fccad7bd6d27
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SSDEEP
98304:WECH+3DSWnI1KGGLxQ5XsnDnmKFULzGt/AOX9k/3NCXH+HNQDf1LiqV:WtH+32WnIs1Fg8DnrtoOX9+mBzV
Malware Config
Signatures
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Glupteba payload 21 IoCs
resource yara_rule behavioral1/memory/3236-2-0x0000000002EA0000-0x000000000378B000-memory.dmp family_glupteba behavioral1/memory/3236-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3236-54-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3236-55-0x0000000002EA0000-0x000000000378B000-memory.dmp family_glupteba behavioral1/memory/5012-56-0x0000000002AA0000-0x0000000002EA2000-memory.dmp family_glupteba behavioral1/memory/5012-57-0x0000000002EB0000-0x000000000379B000-memory.dmp family_glupteba behavioral1/memory/5012-58-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/5012-124-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/5012-137-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/5012-159-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3800-255-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3800-266-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3800-269-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3800-273-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3800-279-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3800-282-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3800-286-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3800-289-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3800-295-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3800-298-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3800-302-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4240 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3800 csrss.exe 4908 injector.exe 4540 windefender.exe 2888 windefender.exe -
resource yara_rule behavioral1/files/0x000800000002321f-259.dat upx behavioral1/memory/4540-265-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/2888-270-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/2888-277-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe Set value (str) \REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\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.
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 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 -
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 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe File created C:\Windows\rss\csrss.exe 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 5028 sc.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 3096 schtasks.exe 1520 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,-2182 = "Astrakhan Standard Time" 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.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\22\52C64B7E\@tzres.dll,-601 = "Taipei Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-842 = "Argentina Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2491 = "Aus Central W. Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-661 = "Cen. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-491 = "India Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-752 = "Tonga Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe Key created \REGISTRY\USER\.DEFAULT\Software\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\22\52C64B7E\@tzres.dll,-2871 = "Magallanes Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2792 = "Novosibirsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\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,-1042 = "Ulaanbaatar Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs 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\22\52C64B7E\@tzres.dll,-1971 = "Belarus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2372 = "Easter Island Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-381 = "South Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-301 = "Romance Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time" 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time" 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time" 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-662 = "Cen. Australia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-364 = "Middle East Daylight 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" 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-342 = "Egypt Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-192 = "Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-72 = "Newfoundland Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2631 = "Norfolk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-252 = "Dateline Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2371 = "Easter Island Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-434 = "Georgian Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2924 powershell.exe 2924 powershell.exe 3236 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe 3236 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe 2576 powershell.exe 2576 powershell.exe 5012 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe 5012 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe 5012 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe 5012 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe 5012 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe 5012 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe 5012 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe 5012 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe 5012 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe 5012 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe 1928 powershell.exe 1928 powershell.exe 3500 powershell.exe 3500 powershell.exe 4244 powershell.exe 4244 powershell.exe 4796 powershell.exe 4796 powershell.exe 840 powershell.exe 840 powershell.exe 4908 injector.exe 4908 injector.exe 4908 injector.exe 4908 injector.exe 4908 injector.exe 4908 injector.exe 4908 injector.exe 3800 csrss.exe 3800 csrss.exe 4908 injector.exe 4908 injector.exe 4908 injector.exe 4908 injector.exe 4908 injector.exe 3800 csrss.exe 3800 csrss.exe 4908 injector.exe 4908 injector.exe 3800 csrss.exe 3800 csrss.exe 4908 injector.exe 4908 injector.exe 4908 injector.exe 4908 injector.exe 4908 injector.exe 4908 injector.exe 4908 injector.exe 4908 injector.exe 4908 injector.exe 4908 injector.exe 4908 injector.exe 4908 injector.exe 4908 injector.exe 4908 injector.exe 4908 injector.exe 4908 injector.exe 4908 injector.exe 4908 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 2924 powershell.exe Token: SeDebugPrivilege 3236 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe Token: SeImpersonatePrivilege 3236 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe Token: SeDebugPrivilege 2576 powershell.exe Token: SeDebugPrivilege 1928 powershell.exe Token: SeDebugPrivilege 3500 powershell.exe Token: SeDebugPrivilege 4244 powershell.exe Token: SeDebugPrivilege 4796 powershell.exe Token: SeDebugPrivilege 840 powershell.exe Token: SeSystemEnvironmentPrivilege 3800 csrss.exe Token: SeSecurityPrivilege 5028 sc.exe Token: SeSecurityPrivilege 5028 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3236 wrote to memory of 2924 3236 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe 91 PID 3236 wrote to memory of 2924 3236 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe 91 PID 3236 wrote to memory of 2924 3236 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe 91 PID 5012 wrote to memory of 2576 5012 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe 101 PID 5012 wrote to memory of 2576 5012 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe 101 PID 5012 wrote to memory of 2576 5012 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe 101 PID 5012 wrote to memory of 4056 5012 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe 103 PID 5012 wrote to memory of 4056 5012 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe 103 PID 4056 wrote to memory of 4240 4056 cmd.exe 105 PID 4056 wrote to memory of 4240 4056 cmd.exe 105 PID 5012 wrote to memory of 1928 5012 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe 106 PID 5012 wrote to memory of 1928 5012 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe 106 PID 5012 wrote to memory of 1928 5012 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe 106 PID 5012 wrote to memory of 3500 5012 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe 108 PID 5012 wrote to memory of 3500 5012 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe 108 PID 5012 wrote to memory of 3500 5012 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe 108 PID 5012 wrote to memory of 3800 5012 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe 110 PID 5012 wrote to memory of 3800 5012 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe 110 PID 5012 wrote to memory of 3800 5012 55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe 110 PID 3800 wrote to memory of 4244 3800 csrss.exe 112 PID 3800 wrote to memory of 4244 3800 csrss.exe 112 PID 3800 wrote to memory of 4244 3800 csrss.exe 112 PID 3800 wrote to memory of 4796 3800 csrss.exe 118 PID 3800 wrote to memory of 4796 3800 csrss.exe 118 PID 3800 wrote to memory of 4796 3800 csrss.exe 118 PID 3800 wrote to memory of 840 3800 csrss.exe 120 PID 3800 wrote to memory of 840 3800 csrss.exe 120 PID 3800 wrote to memory of 840 3800 csrss.exe 120 PID 3800 wrote to memory of 4908 3800 csrss.exe 122 PID 3800 wrote to memory of 4908 3800 csrss.exe 122 PID 4540 wrote to memory of 1680 4540 windefender.exe 128 PID 4540 wrote to memory of 1680 4540 windefender.exe 128 PID 4540 wrote to memory of 1680 4540 windefender.exe 128 PID 1680 wrote to memory of 5028 1680 cmd.exe 129 PID 1680 wrote to memory of 5028 1680 cmd.exe 129 PID 1680 wrote to memory of 5028 1680 cmd.exe 129 -
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\55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe"C:\Users\Admin\AppData\Local\Temp\55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3236 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2924
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C:\Users\Admin\AppData\Local\Temp\55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.exe"C:\Users\Admin\AppData\Local\Temp\55b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5.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:5012 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2576
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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:4056 -
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:4240
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1928
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3500
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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:3800 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4244
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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:3096
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:368
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4796
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:840
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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:4908
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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:1520
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4540 -
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:1680 -
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:5028
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2888
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
MD5babb76d42dc04e2f0f5e2140b8ba6f8e
SHA110e81f9137b12b0ed26449e46eeef2eca281c4d7
SHA2567010f5592f9082bd0f76afb636de1051ece8ab2b105454ae9a4e5074c755578c
SHA51241874faefeb21d6422e9dcd5f1d1be3f0364b84ac756a03f27b3554119ce6d3e9b3082f52c23c27e8c74f870c7583888bc64731b0180fa6b6d2febee0ac5b0e7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5052ca5dd7efc19e5903a899160b7d84a
SHA1162961eb8b6c18c398acfc0dbc9d3c2899228dde
SHA25625056867a96c54a58ca30bf0bda67ad69673d53e19a59a0aa4f86821a8507f27
SHA51266e4fcc67fe54c345f6c65f495f44ccc8dbc3e6a78367e1c8341a23e96033a81b59669e81e5597fcce519652287ecfb1aea48c905ac378c815f203b61d1b2658
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d44d5f6490b89bc1dbc13203d98b521b
SHA1f2321ce10fb957f2feb8a745fef644a55de70f0c
SHA256fd9bafbb077cd45dd49a370dfa8f029094d4ac4a451aa520fbaa3ab59ee1df36
SHA5121b6fe11ec1b58518d59e1d4dc8a8adf7bd86d7b13fcc71835fa6926a93b87794eb326187241e66e52a8f24f791fe6b7d9bfa46dc0e794fd523144d264d637188
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5db220487768397301643097635be2c78
SHA10737686b0eeed362b94986c59d33046a4865d7e8
SHA256cbbd41475f349baa2be04b44a1d1e828bdb5d9dd65ad8e56114822da5cc2643a
SHA5122994edcdc4247811745a72824332381e9955d5743dc1cd130716bae9bb878844ad544662357b0f95f2c8e72a84a56b2b943d581c4432a3546fef7ca295b381c4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d57ae74c5ecf41906b1b25a051570daa
SHA16edf612e7536ed404a390223584079f19bda7e79
SHA256e8589a5e3310d7dff2feb145372da5f2a0f832e0366d81fd5dd1b18c5896a167
SHA5124aa3b50893a455cd070d9e378014917adf99b410a0909daebe1353e2ebb9b8b2ca5b4c6af4a2a7bbf7529253b22d83037fa7e892653a6567038a41f26ec53f47
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Filesize
4.2MB
MD5de998f2b8408d7158a1eed574f6ead84
SHA1eb4fce52f81a8347b2872fb88799f9f7cc712432
SHA25655b74c386b21407fe30ae3f26c47b2d02451ca93f7aea6363a8e5fb94a5617e5
SHA51235271c554a9770814d038f80684091af750bff71b39eb8267b789489b58cf8390855261d06dd33a6c304a2106ec2c691ba95ecfd1e1cb87af432fccad7bd6d27
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec