Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-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 18 IoCs
resource yara_rule behavioral1/memory/4868-2-0x0000000004FE0000-0x00000000058CB000-memory.dmp family_glupteba behavioral1/memory/4868-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4868-28-0x0000000000400000-0x0000000002ED6000-memory.dmp family_glupteba behavioral1/memory/4868-58-0x0000000004FE0000-0x00000000058CB000-memory.dmp family_glupteba behavioral1/memory/4868-57-0x0000000000400000-0x0000000002ED6000-memory.dmp family_glupteba behavioral1/memory/4868-59-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2336-82-0x0000000000400000-0x0000000002ED6000-memory.dmp family_glupteba behavioral1/memory/2336-137-0x0000000000400000-0x0000000002ED6000-memory.dmp family_glupteba behavioral1/memory/3104-219-0x0000000000400000-0x0000000002ED6000-memory.dmp family_glupteba behavioral1/memory/3104-230-0x0000000000400000-0x0000000002ED6000-memory.dmp family_glupteba behavioral1/memory/3104-232-0x0000000000400000-0x0000000002ED6000-memory.dmp family_glupteba behavioral1/memory/3104-236-0x0000000000400000-0x0000000002ED6000-memory.dmp family_glupteba behavioral1/memory/3104-239-0x0000000000400000-0x0000000002ED6000-memory.dmp family_glupteba behavioral1/memory/3104-242-0x0000000000400000-0x0000000002ED6000-memory.dmp family_glupteba behavioral1/memory/3104-245-0x0000000000400000-0x0000000002ED6000-memory.dmp family_glupteba behavioral1/memory/3104-248-0x0000000000400000-0x0000000002ED6000-memory.dmp family_glupteba behavioral1/memory/3104-251-0x0000000000400000-0x0000000002ED6000-memory.dmp family_glupteba behavioral1/memory/3104-254-0x0000000000400000-0x0000000002ED6000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4764 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3104 csrss.exe 3656 injector.exe 3736 windefender.exe 4948 windefender.exe -
resource yara_rule behavioral1/files/0x00090000000233b1-223.dat upx behavioral1/memory/3736-225-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4948-227-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3736-229-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4948-233-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4948-238-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Set value (str) \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\windefender.exe csrss.exe 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 -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 380 sc.exe -
pid Process 4808 powershell.exe 1988 powershell.exe 5056 powershell.exe 1800 powershell.exe 452 powershell.exe 5052 powershell.exe 2144 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 548 schtasks.exe 1452 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,-1662 = "Bahia Standard Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.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\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-332 = "E. Europe 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\@tzres.dll,-831 = "SA Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.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" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.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,-301 = "Romance Daylight Time" windefender.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 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-371 = "Jerusalem Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-212 = "Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2752 = "Tomsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs 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,-171 = "Central Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2372 = "Easter Island Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1802 = "Line Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.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\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-161 = "Central 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\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-31 = "Mid-Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-601 = "Taipei Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-692 = "Tasmania Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.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\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.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\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-401 = "Arabic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-492 = "India Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-162 = "Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-772 = "Montevideo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3141 = "South Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-532 = "Sri Lanka Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-441 = "Arabian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1800 powershell.exe 1800 powershell.exe 4868 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 4868 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 452 powershell.exe 452 powershell.exe 2336 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 2336 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 2336 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 2336 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 2336 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 2336 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 2336 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 2336 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 2336 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 2336 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 5052 powershell.exe 5052 powershell.exe 2144 powershell.exe 2144 powershell.exe 4808 powershell.exe 4808 powershell.exe 1988 powershell.exe 1988 powershell.exe 5056 powershell.exe 5056 powershell.exe 3656 injector.exe 3656 injector.exe 3656 injector.exe 3656 injector.exe 3656 injector.exe 3656 injector.exe 3104 csrss.exe 3104 csrss.exe 3656 injector.exe 3656 injector.exe 3656 injector.exe 3656 injector.exe 3656 injector.exe 3656 injector.exe 3104 csrss.exe 3104 csrss.exe 3656 injector.exe 3656 injector.exe 3656 injector.exe 3656 injector.exe 3104 csrss.exe 3104 csrss.exe 3656 injector.exe 3656 injector.exe 3656 injector.exe 3656 injector.exe 3656 injector.exe 3656 injector.exe 3656 injector.exe 3656 injector.exe 3656 injector.exe 3656 injector.exe 3656 injector.exe 3656 injector.exe 3656 injector.exe 3656 injector.exe 3656 injector.exe 3656 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 1800 powershell.exe Token: SeDebugPrivilege 4868 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Token: SeImpersonatePrivilege 4868 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe Token: SeDebugPrivilege 452 powershell.exe Token: SeDebugPrivilege 5052 powershell.exe Token: SeDebugPrivilege 2144 powershell.exe Token: SeDebugPrivilege 4808 powershell.exe Token: SeDebugPrivilege 1988 powershell.exe Token: SeDebugPrivilege 5056 powershell.exe Token: SeSystemEnvironmentPrivilege 3104 csrss.exe Token: SeSecurityPrivilege 380 sc.exe Token: SeSecurityPrivilege 380 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4868 wrote to memory of 1800 4868 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 84 PID 4868 wrote to memory of 1800 4868 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 84 PID 4868 wrote to memory of 1800 4868 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 84 PID 2336 wrote to memory of 452 2336 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 89 PID 2336 wrote to memory of 452 2336 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 89 PID 2336 wrote to memory of 452 2336 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 89 PID 2336 wrote to memory of 4520 2336 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 92 PID 2336 wrote to memory of 4520 2336 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 92 PID 4520 wrote to memory of 4764 4520 cmd.exe 94 PID 4520 wrote to memory of 4764 4520 cmd.exe 94 PID 2336 wrote to memory of 5052 2336 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 96 PID 2336 wrote to memory of 5052 2336 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 96 PID 2336 wrote to memory of 5052 2336 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 96 PID 2336 wrote to memory of 2144 2336 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 98 PID 2336 wrote to memory of 2144 2336 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 98 PID 2336 wrote to memory of 2144 2336 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 98 PID 2336 wrote to memory of 3104 2336 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 101 PID 2336 wrote to memory of 3104 2336 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 101 PID 2336 wrote to memory of 3104 2336 a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe 101 PID 3104 wrote to memory of 4808 3104 csrss.exe 102 PID 3104 wrote to memory of 4808 3104 csrss.exe 102 PID 3104 wrote to memory of 4808 3104 csrss.exe 102 PID 3104 wrote to memory of 1988 3104 csrss.exe 108 PID 3104 wrote to memory of 1988 3104 csrss.exe 108 PID 3104 wrote to memory of 1988 3104 csrss.exe 108 PID 3104 wrote to memory of 5056 3104 csrss.exe 110 PID 3104 wrote to memory of 5056 3104 csrss.exe 110 PID 3104 wrote to memory of 5056 3104 csrss.exe 110 PID 3104 wrote to memory of 3656 3104 csrss.exe 112 PID 3104 wrote to memory of 3656 3104 csrss.exe 112 PID 3736 wrote to memory of 4444 3736 windefender.exe 118 PID 3736 wrote to memory of 4444 3736 windefender.exe 118 PID 3736 wrote to memory of 4444 3736 windefender.exe 118 PID 4444 wrote to memory of 380 4444 cmd.exe 119 PID 4444 wrote to memory of 380 4444 cmd.exe 119 PID 4444 wrote to memory of 380 4444 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\a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe"C:\Users\Admin\AppData\Local\Temp\a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4868 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1800
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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:2336 -
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:452
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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:4520 -
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:4764
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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:5052
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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:2144
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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:3104 -
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:4808
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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:548
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1332
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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:1988
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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:5056
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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:3656
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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:1452
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3736 -
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:4444 -
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:380
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4948
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
MD5c5b95ecc62ea61d7211ec170e4bf5b09
SHA164dfa659b684dc56dc61fe693bcfc819544bfe2c
SHA256c3912c443182da0008ae3bfe78457f7dfbf4491e06bc092aea62fa7c8a2894e6
SHA5123b6b6cc937909b8a985a3e3ff3c9882dd94e1ec1c6b499610bb3020fdacac84d73ea78028c0be09ca14f1ad61c6325eaf42723cbf1f5e6d1a2c3faa74a1c6cb7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD569c15b7464abf249b6244775b0a5a8dc
SHA19299edad0d294f1a6aff243a84d920b79d1b5baf
SHA25658060e678ac876d8280480c954422dbe024f874329bb283e732a96520b6e5fd0
SHA512e146fef5ca62a4dcccb581f44ab73e908b9fa50edb36438201b4f66452a688eb123a369737f79b2789ab6efa189b827e1f8c63e75b9248576b58da37a132eda7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e0f5039a4ea12505d18aec9b422108ce
SHA10f5dfeac3508f79a6d32a4a14f870653a1406bc8
SHA256cf57ca0f18799391217a01555adc4f94e494bd205c99bb0043c324af4e89b023
SHA5120e806114893892a273ca1d7aae34c7f3c6bad55fd85f2488bdfe91548cc4ddedffb2f35bfb5273c6dd616e4421f805cb28df6c3a47193275ff0ef6256f46c3fd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55ef4e7bd4a486bd148149dcf76647782
SHA121c5591a3df0122c414b7ec9923354a360e742e0
SHA2565612fd5e80161cfa370bbb992ee7985f51a3b560801624ee56611f98987ad2e2
SHA512ce51b0eb73817c5ef5e6a7c5a43da35f63d0a85495eb3f2a57cab7b43d931874f189fd31950492e731918443a508012b3686e393c83f2a9e9522240b9309a946
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d864e328c43eda729a1d806d15b88b2a
SHA10edcb6f46e616f4d3558a76ce9d30e7aa8edce6e
SHA2564c72ca5de2064185da58dcf1998ab6220ff842100baad759d9cca1aed2802650
SHA51280f0bfd3ec463e9f1b645702e3890e349732b9a06257a636645ffd229ed4c2a5ebb17eba21bfd8e59d06c9c705284c89b1362fd432c7c2dad7389e01583e49d4
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Filesize
4.1MB
MD54150846e48cb332ce565384851fc6e26
SHA1e0fc677654f4dcfad0ae6b66ea7a6c0c1dea0ddb
SHA256a4fea52cf3eed9b4d571d8f96181fc7c9589fffc83c570a0484204213479a1f9
SHA5124757678d6b20c1f47c2c91116da38b2e74931a1a005a43f0624b3e7bb7ff5f05ca1875f2d9c1d1391e7553132753bcc4b7f3d7c45c75e7f4f540cc8db593d5fb
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec