Analysis
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max time kernel
150s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
09/05/2024, 16:46
Static task
static1
Behavioral task
behavioral1
Sample
a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe
Resource
win10v2004-20240508-en
General
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Target
a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe
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Size
4.1MB
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MD5
4150846e48cb332ce565384851fc6e26
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SHA1
e0fc677654f4dcfad0ae6b66ea7a6c0c1dea0ddb
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SHA256
a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9
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SHA512
4757678d6b20c1f47c2c91116da38b2e74931a1a005a43f0624b3e7bb7ff5f05ca1875f2d9c1d1391e7553132753bcc4b7f3d7c45c75e7f4f540cc8db593d5fb
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SSDEEP
98304:blDK2ogLLeo95J5ZPcfTDKdk17ZCPQ0/B9CeuvJXiZ9xD4RskEV31KmzB:h7B3j0rWdEQQ059Cfd4xbkE91Kmt
Malware Config
Signatures
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Glupteba payload 17 IoCs
resource yara_rule behavioral2/memory/4972-2-0x0000000005000000-0x00000000058EB000-memory.dmp family_glupteba behavioral2/memory/4972-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4972-50-0x0000000000400000-0x0000000002ED6000-memory.dmp family_glupteba behavioral2/memory/4972-97-0x0000000005000000-0x00000000058EB000-memory.dmp family_glupteba behavioral2/memory/4668-125-0x0000000000400000-0x0000000002ED6000-memory.dmp family_glupteba behavioral2/memory/4972-126-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3720-175-0x0000000000400000-0x0000000002ED6000-memory.dmp family_glupteba behavioral2/memory/3720-207-0x0000000000400000-0x0000000002ED6000-memory.dmp family_glupteba behavioral2/memory/3720-215-0x0000000000400000-0x0000000002ED6000-memory.dmp family_glupteba behavioral2/memory/3720-219-0x0000000000400000-0x0000000002ED6000-memory.dmp family_glupteba behavioral2/memory/3720-223-0x0000000000400000-0x0000000002ED6000-memory.dmp family_glupteba behavioral2/memory/3720-227-0x0000000000400000-0x0000000002ED6000-memory.dmp family_glupteba behavioral2/memory/3720-231-0x0000000000400000-0x0000000002ED6000-memory.dmp family_glupteba behavioral2/memory/3720-235-0x0000000000400000-0x0000000002ED6000-memory.dmp family_glupteba behavioral2/memory/3720-239-0x0000000000400000-0x0000000002ED6000-memory.dmp family_glupteba behavioral2/memory/3720-243-0x0000000000400000-0x0000000002ED6000-memory.dmp family_glupteba behavioral2/memory/3720-247-0x0000000000400000-0x0000000002ED6000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4228 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3720 csrss.exe 2884 injector.exe 4648 windefender.exe 1864 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa34-206.dat upx behavioral2/memory/4648-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1864-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4648-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1864-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1864-224-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3938118698-2964058152-2337880935-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Set value (str) \REGISTRY\USER\S-1-5-21-3938118698-2964058152-2337880935-1000\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\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 File created 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 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe File created C:\Windows\rss\csrss.exe a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.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 1664 sc.exe -
pid Process 3252 powershell.exe 4564 powershell.exe 2424 powershell.exe 1944 powershell.exe 2448 powershell.exe 4636 powershell.exe 5064 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 2452 schtasks.exe 3804 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,-104 = "Central Brazilian Daylight Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates 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,-112 = "Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-302 = "Romance Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2491 = "Aus Central W. Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1411 = "Syria Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-411 = "E. Africa Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-391 = "Arab Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-448 = "Azerbaijan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-331 = "E. Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-42 = "E. South America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-491 = "India Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-335 = "Jordan Standard 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" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.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\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2321 = "Sakhalin Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2342 = "Haiti Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-961 = "Paraguay 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\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.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\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2842 = "Saratov Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-752 = "Tonga Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4564 powershell.exe 4564 powershell.exe 4972 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 4972 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 2424 powershell.exe 2424 powershell.exe 4668 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 4668 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 4668 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 4668 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 4668 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 4668 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 4668 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 4668 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 4668 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 4668 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 1944 powershell.exe 1944 powershell.exe 2448 powershell.exe 2448 powershell.exe 4636 powershell.exe 4636 powershell.exe 5064 powershell.exe 5064 powershell.exe 3252 powershell.exe 3252 powershell.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 3720 csrss.exe 3720 csrss.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 3720 csrss.exe 3720 csrss.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 3720 csrss.exe 3720 csrss.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4564 powershell.exe Token: SeDebugPrivilege 4972 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Token: SeImpersonatePrivilege 4972 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Token: SeDebugPrivilege 2424 powershell.exe Token: SeDebugPrivilege 1944 powershell.exe Token: SeDebugPrivilege 2448 powershell.exe Token: SeDebugPrivilege 4636 powershell.exe Token: SeDebugPrivilege 5064 powershell.exe Token: SeDebugPrivilege 3252 powershell.exe Token: SeSystemEnvironmentPrivilege 3720 csrss.exe Token: SeSecurityPrivilege 1664 sc.exe Token: SeSecurityPrivilege 1664 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4972 wrote to memory of 4564 4972 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 83 PID 4972 wrote to memory of 4564 4972 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 83 PID 4972 wrote to memory of 4564 4972 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 83 PID 4668 wrote to memory of 2424 4668 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 88 PID 4668 wrote to memory of 2424 4668 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 88 PID 4668 wrote to memory of 2424 4668 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 88 PID 4668 wrote to memory of 1844 4668 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 90 PID 4668 wrote to memory of 1844 4668 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 90 PID 1844 wrote to memory of 4228 1844 cmd.exe 92 PID 1844 wrote to memory of 4228 1844 cmd.exe 92 PID 4668 wrote to memory of 1944 4668 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 93 PID 4668 wrote to memory of 1944 4668 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 93 PID 4668 wrote to memory of 1944 4668 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 93 PID 4668 wrote to memory of 2448 4668 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 95 PID 4668 wrote to memory of 2448 4668 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 95 PID 4668 wrote to memory of 2448 4668 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 95 PID 4668 wrote to memory of 3720 4668 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 97 PID 4668 wrote to memory of 3720 4668 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 97 PID 4668 wrote to memory of 3720 4668 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 97 PID 3720 wrote to memory of 4636 3720 csrss.exe 98 PID 3720 wrote to memory of 4636 3720 csrss.exe 98 PID 3720 wrote to memory of 4636 3720 csrss.exe 98 PID 3720 wrote to memory of 5064 3720 csrss.exe 103 PID 3720 wrote to memory of 5064 3720 csrss.exe 103 PID 3720 wrote to memory of 5064 3720 csrss.exe 103 PID 3720 wrote to memory of 3252 3720 csrss.exe 106 PID 3720 wrote to memory of 3252 3720 csrss.exe 106 PID 3720 wrote to memory of 3252 3720 csrss.exe 106 PID 3720 wrote to memory of 2884 3720 csrss.exe 108 PID 3720 wrote to memory of 2884 3720 csrss.exe 108 PID 4648 wrote to memory of 5104 4648 windefender.exe 114 PID 4648 wrote to memory of 5104 4648 windefender.exe 114 PID 4648 wrote to memory of 5104 4648 windefender.exe 114 PID 5104 wrote to memory of 1664 5104 cmd.exe 115 PID 5104 wrote to memory of 1664 5104 cmd.exe 115 PID 5104 wrote to memory of 1664 5104 cmd.exe 115 -
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\a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe"C:\Users\Admin\AppData\Local\Temp\a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4972 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4564
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C:\Users\Admin\AppData\Local\Temp\a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe"C:\Users\Admin\AppData\Local\Temp\a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.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:4668 -
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:2424
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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:1844 -
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:4228
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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:1944
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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:2448
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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:3720 -
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:4636
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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:2452
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1672
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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:5064
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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:3252
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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:2884
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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:3804
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4648 -
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:5104 -
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:1664
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1864
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
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b3722091aee00aa6602d443924c497b4
SHA162e68f997a0b338f3b530a505660f9d241ff8554
SHA2561d3ec0e20a1b44b54cb7532991c7e59c9ea1424efcfc98f41cd0d95c3cbf3e09
SHA51244ab4ff5cadc18b9aca2aec13fda3a947c823ed488b3743a96bfe7b520180f0caf11550f78519c6bf1163d8f552cd8101201df6416d8d28e1345bee12eb93934
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59650cec11568aedf90b07ec67f577210
SHA12433d4d14d20df11daac6d405f618a17197ea0af
SHA2563b0e99117abb5739bb847653a91a4972c6e022dc1b6e05815e7c58a47be9338f
SHA5125ddccb64fcba289b1e2ac88055d3909c5a2bf27824c57114451e76a0ddd93dc608120215b1e12c3461ef028f12e4b50b99f4c87d3eb18bcae7b4f50ab7a6e377
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57cb2548685e178e03f5051ee497f3461
SHA163223ad8b409ff51e81be0903b3fe69e2d395385
SHA256bb1e15085d044952a6621f381f49f6f750ceaccf863429ef145e660967896a60
SHA512202a193000f7103308ce5b700733aea4d8ddc0dc5b70139f4f73cf07715c13755416cb1d238f693758d61fe5ed1c02a7f307b217f316c38329a448a8ae35a87f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ba3ed6b84d4460e799bb93bad611aa80
SHA1133f0f6ba5308519e68a7847666a6347083d50a0
SHA25637ce8224f636ab1715936e77eb94dcacb7761ed0108e7cbef545d86314417de5
SHA5125d019eb2d9b80b7d4f47aa4436d02f25e91b73b5e5d9612ee7f1f0bbdc06572b8cd60a3badf36fba257897e26a70611bd2bde5090285a58d5b63e1287ae7a059
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5250fd13e5b00a40420217e8068640e3d
SHA1fe9d9fa1e649ce4416070844bbe0ca69a8aa148a
SHA25608df9c11edd883a64ef4f43bd3295b6d4bb04769a809d190393becf6433e02dd
SHA512779409b6de44da7c70f92713f16b4d308828e19a63226e6a44ab2d0ee3c356b3fdf9059cdf76e48e57a62ab18201a58e7e2a8fa13f83c208bb766682eac13737
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Filesize
4.1MB
MD54150846e48cb332ce565384851fc6e26
SHA1e0fc677654f4dcfad0ae6b66ea7a6c0c1dea0ddb
SHA256a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9
SHA5124757678d6b20c1f47c2c91116da38b2e74931a1a005a43f0624b3e7bb7ff5f05ca1875f2d9c1d1391e7553132753bcc4b7f3d7c45c75e7f4f540cc8db593d5fb
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec