Analysis
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max time kernel
150s -
max time network
153s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
19/04/2024, 19:23
Static task
static1
Behavioral task
behavioral1
Sample
3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe
Resource
win10v2004-20240226-en
General
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Target
3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe
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Size
4.2MB
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MD5
7259a8faf0ebdc840803df9282ee426c
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SHA1
bd6353cc66c7937a43d2621ecbd0a4152d1bd01b
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SHA256
3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3
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SHA512
4cdf9deb0680fd64a8dc49bec67d759d5f16c50161757e5359cfc734634a55a09789919ff88239f05667120f5210c3abe9cf6555ff22510f6141367a37b26bbb
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SSDEEP
98304:rtwUIgr6Tu/hivXD0fl0IvZVjhgp1+mYFjvUcmYnimsjZaHei:5w6rquKXDtU1Y2GYniVjUH7
Malware Config
Signatures
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Glupteba payload 20 IoCs
resource yara_rule behavioral2/memory/3264-2-0x0000000004240000-0x0000000004B2B000-memory.dmp family_glupteba behavioral2/memory/3264-3-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3264-42-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/2708-45-0x0000000003F40000-0x000000000482B000-memory.dmp family_glupteba behavioral2/memory/2708-46-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/2708-123-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/2708-143-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3680-240-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3680-241-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3680-250-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3680-252-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3680-254-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3680-256-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3680-258-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3680-260-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3680-262-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3680-264-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3680-266-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3680-268-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba behavioral2/memory/3680-270-0x0000000000400000-0x0000000001E08000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2404 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3680 csrss.exe 2420 injector.exe 4220 windefender.exe 2016 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9bf-244.dat upx behavioral2/memory/4220-248-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2016-251-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2016-255-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-834482027-582050234-2368284635-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe Set value (str) \REGISTRY\USER\S-1-5-21-834482027-582050234-2368284635-1000\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 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 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe File created C:\Windows\rss\csrss.exe 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.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 1920 sc.exe -
Program crash 2 IoCs
pid pid_target Process procid_target 3004 3432 WerFault.exe 81 3292 2708 WerFault.exe 89 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2280 schtasks.exe 3008 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-111 = "Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time" 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.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\26\52C64B7E\@tzres.dll,-32 = "Mid-Atlantic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-392 = "Arab Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-232 = "Hawaiian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-601 = "Taipei Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2751 = "Tomsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-131 = "US Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-571 = "China Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time" 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1842 = "Russia TZ 4 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2841 = "Saratov Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-202 = "US Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time" 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1862 = "Russia TZ 6 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2451 = "Saint Pierre Daylight Time" windefender.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\26\52C64B7E\@tzres.dll,-2062 = "North Korea Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-215 = "Pacific Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-331 = "E. Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1912 = "Russia TZ 10 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-41 = "E. South America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1502 = "Turkey Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2571 = "Turks and Caicos Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time" 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.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\26\52C64B7E\@tzres.dll,-2392 = "Aleutian Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3432 powershell.exe 3432 powershell.exe 3264 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe 3264 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe 1180 powershell.exe 1180 powershell.exe 2708 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe 2708 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe 2708 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe 2708 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe 2708 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe 2708 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe 2708 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe 2708 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe 2708 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe 2708 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe 4220 powershell.exe 4220 powershell.exe 4184 powershell.exe 4184 powershell.exe 2804 powershell.exe 2804 powershell.exe 4072 powershell.exe 4072 powershell.exe 2268 powershell.exe 2268 powershell.exe 2420 injector.exe 2420 injector.exe 2420 injector.exe 2420 injector.exe 2420 injector.exe 2420 injector.exe 3680 csrss.exe 3680 csrss.exe 2420 injector.exe 2420 injector.exe 2420 injector.exe 2420 injector.exe 2420 injector.exe 2420 injector.exe 3680 csrss.exe 3680 csrss.exe 2420 injector.exe 2420 injector.exe 2420 injector.exe 2420 injector.exe 2420 injector.exe 2420 injector.exe 2420 injector.exe 2420 injector.exe 2420 injector.exe 2420 injector.exe 2420 injector.exe 2420 injector.exe 2420 injector.exe 2420 injector.exe 2420 injector.exe 2420 injector.exe 2420 injector.exe 2420 injector.exe 2420 injector.exe 2420 injector.exe 2420 injector.exe 2420 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3432 powershell.exe Token: SeDebugPrivilege 3264 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe Token: SeImpersonatePrivilege 3264 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe Token: SeDebugPrivilege 1180 powershell.exe Token: SeDebugPrivilege 4220 powershell.exe Token: SeDebugPrivilege 4184 powershell.exe Token: SeDebugPrivilege 2804 powershell.exe Token: SeDebugPrivilege 4072 powershell.exe Token: SeDebugPrivilege 2268 powershell.exe Token: SeSystemEnvironmentPrivilege 3680 csrss.exe Token: SeSecurityPrivilege 1920 sc.exe Token: SeSecurityPrivilege 1920 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3264 wrote to memory of 3432 3264 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe 81 PID 3264 wrote to memory of 3432 3264 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe 81 PID 3264 wrote to memory of 3432 3264 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe 81 PID 2708 wrote to memory of 1180 2708 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe 90 PID 2708 wrote to memory of 1180 2708 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe 90 PID 2708 wrote to memory of 1180 2708 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe 90 PID 2708 wrote to memory of 2308 2708 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe 92 PID 2708 wrote to memory of 2308 2708 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe 92 PID 2308 wrote to memory of 2404 2308 cmd.exe 94 PID 2308 wrote to memory of 2404 2308 cmd.exe 94 PID 2708 wrote to memory of 4220 2708 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe 95 PID 2708 wrote to memory of 4220 2708 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe 95 PID 2708 wrote to memory of 4220 2708 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe 95 PID 2708 wrote to memory of 4184 2708 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe 97 PID 2708 wrote to memory of 4184 2708 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe 97 PID 2708 wrote to memory of 4184 2708 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe 97 PID 2708 wrote to memory of 3680 2708 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe 99 PID 2708 wrote to memory of 3680 2708 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe 99 PID 2708 wrote to memory of 3680 2708 3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe 99 PID 3680 wrote to memory of 2804 3680 csrss.exe 102 PID 3680 wrote to memory of 2804 3680 csrss.exe 102 PID 3680 wrote to memory of 2804 3680 csrss.exe 102 PID 3680 wrote to memory of 4072 3680 csrss.exe 107 PID 3680 wrote to memory of 4072 3680 csrss.exe 107 PID 3680 wrote to memory of 4072 3680 csrss.exe 107 PID 3680 wrote to memory of 2268 3680 csrss.exe 110 PID 3680 wrote to memory of 2268 3680 csrss.exe 110 PID 3680 wrote to memory of 2268 3680 csrss.exe 110 PID 3680 wrote to memory of 2420 3680 csrss.exe 112 PID 3680 wrote to memory of 2420 3680 csrss.exe 112 PID 4220 wrote to memory of 4704 4220 windefender.exe 118 PID 4220 wrote to memory of 4704 4220 windefender.exe 118 PID 4220 wrote to memory of 4704 4220 windefender.exe 118 PID 4704 wrote to memory of 1920 4704 cmd.exe 119 PID 4704 wrote to memory of 1920 4704 cmd.exe 119 PID 4704 wrote to memory of 1920 4704 cmd.exe 119 -
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\3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe"C:\Users\Admin\AppData\Local\Temp\3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3264 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3432 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3432 -s 23843⤵
- Program crash
PID:3004
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C:\Users\Admin\AppData\Local\Temp\3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.exe"C:\Users\Admin\AppData\Local\Temp\3408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3.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:2708 -
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:1180
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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:2308 -
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:2404
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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:4220
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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:4184
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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:3680 -
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:2804
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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:3008
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:744
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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:4072
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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:2268
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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:2420
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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:2280
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4220 -
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:4704 -
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:1920
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2708 -s 7083⤵
- Program crash
PID:3292
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 352 -p 3432 -ip 34321⤵PID:2608
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2708 -ip 27081⤵PID:4292
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2016
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
MD53c884f127dceacb432899cf1c468ecb1
SHA12623730aa969f9681a930bd003d59aba64b53614
SHA256f5e158632ba99e74b1d3cf90ab05bd190367289b304dfc2f6a511ee308584273
SHA51247040531057796ad42344b68c76da81a04e0d69776ed99790dd0b6ac824cfe48747a7d196899e977b4fefcabcbdcdea16c4d99be8129eacd5a37bce7a291aac1
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD547b59651b3c5da3e6e5d5c6102f93b18
SHA12bf569db55cf40cd7e7417e7b84c7b6c9f70078f
SHA256ef521ce4cd9c6507019d8e7bf60b8522ad7c3b6714aa7a9e083fb5226dda6dc6
SHA512444ee7ffb14dd27a2c640d58063b120fc9e08006291cdc9fa602a7ceef186d70dd44757417cf5c16ed23fd4154dac36269cfd507b3a9e5b550a4e77782f96da2
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5cf4fdbd3f09f156d18c2f86f9159d95d
SHA111beb9e1a63095c5bb085bdd33e75b6f6628aafa
SHA2563ed86bc49e3d231d2bf5e01bd6a14d2c00d1d2db806512542cef804f5c70c3c7
SHA512c4c602dfa5b9efebde7821d08bb4e7a0a78c7b72aab55acc92db8df3c8981ec32cfa16d17698c5f90fad2e1ba17665c1f2391f8783786fb6d840882a15ef6297
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5050ef42de022dd43b150480d7eeebc9c
SHA1102ca9aea256da4c080b3081979a11af69f7092e
SHA256cbebcedf542df1922225443a55bd36678b253cd45e97b0956d01b24a7051a893
SHA5126aff6ca2ba4b89b3b8b5d698e1bbf7e7fdf35d9a696c45f84d118662ca771ee04efd691d3ad15f623f7d30157e0309616b3c87f7b543c57855a5a1c4137e4d1f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f5739f665bcce9806a366a9fac595591
SHA1ab2aea7e289981b1541e8ec5de6f8b18ae333419
SHA2566087ca1ababef4a1932eaa97f399809edb2f02e95c1c1cee38efbdc9251e0a41
SHA51292ee301f50cafd2ea9b0ca3d58e387d87601d8c91f16c6c32c43ba2a601e479c8dfbf3f130b0be6a29a4f3da2d8be969c9fc7ee0e1b0955239b4c636e54f5b13
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Filesize
4.2MB
MD57259a8faf0ebdc840803df9282ee426c
SHA1bd6353cc66c7937a43d2621ecbd0a4152d1bd01b
SHA2563408b564ef8a141be8b665645f0eb58e3de8acb8d221c70b82936222f376d9d3
SHA5124cdf9deb0680fd64a8dc49bec67d759d5f16c50161757e5359cfc734634a55a09789919ff88239f05667120f5210c3abe9cf6555ff22510f6141367a37b26bbb
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec