Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
19-05-2024 14:04
Static task
static1
Behavioral task
behavioral1
Sample
4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe
Resource
win10v2004-20240508-en
General
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Target
4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe
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Size
4.1MB
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MD5
41671fa8975be8ebe5fae3d48308e38a
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SHA1
bfccefc2604461f51da2210633abd9af0bf6f55b
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SHA256
4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9
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SHA512
c9dccc79c8ae79900a9060e0889b35d28c270ba2b57be73e94363d801523ee1296720bd2832c68b793553fb66dec61e5e766c3e5259d23b2c91586f3639f110c
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SSDEEP
98304:QuOdAWE/bfbxbxBimum48oJjLrUZhWcgWy75MTps2CObMUZCzBSZ:QuOpIddBi3V8Ojm7gWylM939C8
Malware Config
Signatures
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Glupteba payload 20 IoCs
resource yara_rule behavioral1/memory/4504-2-0x0000000004A20000-0x000000000530B000-memory.dmp family_glupteba behavioral1/memory/4504-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4504-78-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4504-129-0x0000000004A20000-0x000000000530B000-memory.dmp family_glupteba behavioral1/memory/800-128-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/800-134-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/4504-159-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1036-211-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/1036-228-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/1036-230-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/1036-232-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/1036-237-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/1036-240-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/1036-243-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/1036-244-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/1036-247-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/1036-252-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/1036-255-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/1036-256-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/1036-259-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4500 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 1036 csrss.exe 2348 injector.exe 3164 windefender.exe 3848 windefender.exe -
resource yara_rule behavioral1/files/0x0009000000023418-220.dat upx behavioral1/memory/3164-222-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3164-226-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3848-224-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3848-231-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3848-235-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe Set value (str) \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\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 created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe File created C:\Windows\rss\csrss.exe 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.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 1120 sc.exe -
pid Process 4548 powershell.exe 4968 powershell.exe 4308 powershell.exe 1804 powershell.exe 4440 powershell.exe 3000 powershell.exe 4864 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 5084 schtasks.exe 4980 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-632 = "Tokyo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-261 = "GMT Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time" 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1842 = "Russia TZ 4 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time" 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-222 = "Alaskan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2181 = "Astrakhan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-361 = "GTB Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-121 = "SA Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-232 = "Hawaiian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.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\2a\52C64B7E\@tzres.dll,-182 = "Mountain Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-384 = "Namibia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-572 = "China Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-281 = "Central Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-602 = "Taipei Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time" 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2891 = "Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1862 = "Russia TZ 6 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-211 = "Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4864 powershell.exe 4864 powershell.exe 4504 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe 4504 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe 4548 powershell.exe 4548 powershell.exe 800 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe 800 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe 800 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe 800 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe 800 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe 800 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe 800 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe 800 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe 800 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe 800 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe 4968 powershell.exe 4968 powershell.exe 4308 powershell.exe 4308 powershell.exe 1804 powershell.exe 1804 powershell.exe 4440 powershell.exe 4440 powershell.exe 3000 powershell.exe 3000 powershell.exe 2348 injector.exe 2348 injector.exe 2348 injector.exe 2348 injector.exe 2348 injector.exe 2348 injector.exe 1036 csrss.exe 1036 csrss.exe 2348 injector.exe 2348 injector.exe 2348 injector.exe 2348 injector.exe 2348 injector.exe 2348 injector.exe 1036 csrss.exe 1036 csrss.exe 2348 injector.exe 2348 injector.exe 1036 csrss.exe 1036 csrss.exe 2348 injector.exe 2348 injector.exe 2348 injector.exe 2348 injector.exe 2348 injector.exe 2348 injector.exe 2348 injector.exe 2348 injector.exe 2348 injector.exe 2348 injector.exe 2348 injector.exe 2348 injector.exe 2348 injector.exe 2348 injector.exe 2348 injector.exe 2348 injector.exe 2348 injector.exe 2348 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4864 powershell.exe Token: SeDebugPrivilege 4504 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe Token: SeImpersonatePrivilege 4504 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe Token: SeDebugPrivilege 4548 powershell.exe Token: SeDebugPrivilege 4968 powershell.exe Token: SeDebugPrivilege 4308 powershell.exe Token: SeDebugPrivilege 1804 powershell.exe Token: SeDebugPrivilege 4440 powershell.exe Token: SeDebugPrivilege 3000 powershell.exe Token: SeSystemEnvironmentPrivilege 1036 csrss.exe Token: SeSecurityPrivilege 1120 sc.exe Token: SeSecurityPrivilege 1120 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4504 wrote to memory of 4864 4504 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe 84 PID 4504 wrote to memory of 4864 4504 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe 84 PID 4504 wrote to memory of 4864 4504 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe 84 PID 800 wrote to memory of 4548 800 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe 94 PID 800 wrote to memory of 4548 800 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe 94 PID 800 wrote to memory of 4548 800 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe 94 PID 800 wrote to memory of 4312 800 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe 98 PID 800 wrote to memory of 4312 800 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe 98 PID 4312 wrote to memory of 4500 4312 cmd.exe 100 PID 4312 wrote to memory of 4500 4312 cmd.exe 100 PID 800 wrote to memory of 4968 800 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe 101 PID 800 wrote to memory of 4968 800 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe 101 PID 800 wrote to memory of 4968 800 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe 101 PID 800 wrote to memory of 4308 800 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe 103 PID 800 wrote to memory of 4308 800 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe 103 PID 800 wrote to memory of 4308 800 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe 103 PID 800 wrote to memory of 1036 800 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe 105 PID 800 wrote to memory of 1036 800 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe 105 PID 800 wrote to memory of 1036 800 4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe 105 PID 1036 wrote to memory of 1804 1036 csrss.exe 106 PID 1036 wrote to memory of 1804 1036 csrss.exe 106 PID 1036 wrote to memory of 1804 1036 csrss.exe 106 PID 1036 wrote to memory of 4440 1036 csrss.exe 112 PID 1036 wrote to memory of 4440 1036 csrss.exe 112 PID 1036 wrote to memory of 4440 1036 csrss.exe 112 PID 1036 wrote to memory of 3000 1036 csrss.exe 114 PID 1036 wrote to memory of 3000 1036 csrss.exe 114 PID 1036 wrote to memory of 3000 1036 csrss.exe 114 PID 1036 wrote to memory of 2348 1036 csrss.exe 116 PID 1036 wrote to memory of 2348 1036 csrss.exe 116 PID 3164 wrote to memory of 1628 3164 windefender.exe 124 PID 3164 wrote to memory of 1628 3164 windefender.exe 124 PID 3164 wrote to memory of 1628 3164 windefender.exe 124 PID 1628 wrote to memory of 1120 1628 cmd.exe 125 PID 1628 wrote to memory of 1120 1628 cmd.exe 125 PID 1628 wrote to memory of 1120 1628 cmd.exe 125 -
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\4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe"C:\Users\Admin\AppData\Local\Temp\4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4504 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4864
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C:\Users\Admin\AppData\Local\Temp\4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.exe"C:\Users\Admin\AppData\Local\Temp\4c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9.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:800 -
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:4548
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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:4312 -
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:4500
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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:4968
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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:4308
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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:1036 -
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:1804
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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:5084
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3268
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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:4440
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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:3000
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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:2348
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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:4980
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3164 -
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:1628 -
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:1120
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3848
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
MD53d086a433708053f9bf9523e1d87a4e8
SHA1b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA2566f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
SHA512931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD579451bd89e55f88796c221ef266228e3
SHA1ea3485c8c597f128d65b0abb3835874427a03e3f
SHA256dfb139df789b326aa687e004587a441fdaf5e113de05a9e94dc45546a0e42056
SHA51275de6b4fe7c6d9fe29544eac0b4c4e001d1b95a0db8dfab5797e0fbbbcf8af9cfa17d96e479b5e653c765a08ab3f76b61a13d7779729dabb2a9392007721ec1b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD577924259ad5071fe21f79b148231b224
SHA1789f490f20b570c76eba8e4ca68b241887bed884
SHA2568e12440a43156d77b2d111749f418dff940d87e1de970792d40b55bcbc55df14
SHA512d00b9564b7707b9d564e7c1b24052b469ef95bd6aed93f267d14ac402235dff07cedc6a1e8c956345ec7a6ec74d2359dec6ef7dd91ede55809ba4918343aff2e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d336ab4b782999e807b2a5dd1e650f69
SHA12213cada6182c2003c652bf26b423d09bff3fb3d
SHA2563c90a5a8564a41321b52919b42cb6ea0e332a9d490cf60562538c54ec04bcaa7
SHA5121fb6c28f618d5dd704abb5b2afa5335fcf68c1094c7cd70dc69fed05ab7bf7922a13966a0baeb6d7be2d9e6ccde01989b67ee3fa5dc3e24d5f0360c0d8c2f9ce
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c9115258a7bdb9f6d3ac3c29cab7a3bb
SHA1144673685607e0bf1d9c228125ce7c53f73aba7f
SHA25688d86cd34f5b4554b06f88d3c8b034b3bc22cf297612260db86644f956ed6481
SHA512d88921e9b655e654e160549880ffc578c1458f6028480ba89c795580e2726e5deedd9e5793d49769f65b72fdeb53a3aaa0d8287eab18fdb01c20db53976712b2
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a6f4f4b6156e6b40a52c2f19ab2f5aa7
SHA1987ef608f063aeeb3fc44444800b74e129d8cf6c
SHA25670357a2cfb0fd20fbadf67e3733bbe00497e4f7aefe3f3b22fb1c9abe71fdaec
SHA5129919047ca8398c9889f89dc3f6ed1444a8fea34c89dc7309fd0611ed94a260071e2859042358f2a7235eeb23c01fe1a0386492e0f7673ca7f2222ca4b7d5553c
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Filesize
4.1MB
MD541671fa8975be8ebe5fae3d48308e38a
SHA1bfccefc2604461f51da2210633abd9af0bf6f55b
SHA2564c98d0e58e34360fd8862acf310fb56296b99a23411f4a6257cf29ad2df51ba9
SHA512c9dccc79c8ae79900a9060e0889b35d28c270ba2b57be73e94363d801523ee1296720bd2832c68b793553fb66dec61e5e766c3e5259d23b2c91586f3639f110c
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec