Analysis
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max time kernel
150s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
17-05-2024 12:44
Static task
static1
Behavioral task
behavioral1
Sample
4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe
Resource
win10v2004-20240426-en
General
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Target
4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe
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Size
4.1MB
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MD5
49841b2e28ec3064a96349c412ce30c7
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SHA1
5c967fe752f5f93f1d433133aff4dfcd98a71879
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SHA256
4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e
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SHA512
430c10e5ff3868b37db2154584b8b376d90519fd91a07ad7296a26687669a1c9901b8b0aed141c1b2f2c5215d2e54d67275a93817ee004e38b6234b2123d4dbd
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SSDEEP
98304:fBVs1p4PpCxl89qkqVHLjfQjDTn2r+NbZ:pa1p4P0l8MfVLMTrZ
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral1/memory/5036-2-0x0000000004BF0000-0x00000000054DB000-memory.dmp family_glupteba behavioral1/memory/5036-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/5036-4-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/5036-57-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/5036-59-0x0000000004BF0000-0x00000000054DB000-memory.dmp family_glupteba behavioral1/memory/5036-83-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4124-82-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/4124-140-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/1864-164-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/1864-223-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/1864-235-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/1864-239-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/1864-242-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/1864-246-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/1864-251-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/1864-255-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/1864-259-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/1864-262-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral1/memory/1864-267-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4304 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 1864 csrss.exe 4608 injector.exe 1744 windefender.exe 4284 windefender.exe -
resource yara_rule behavioral1/files/0x000800000002344e-226.dat upx behavioral1/memory/1744-229-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4284-231-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1744-233-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4284-237-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4284-245-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe Set value (str) \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe File created C:\Windows\rss\csrss.exe 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.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 208 sc.exe -
pid Process 2376 powershell.exe 3992 powershell.exe 2448 powershell.exe 4396 powershell.exe 5048 powershell.exe 3100 powershell.exe 532 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 2436 schtasks.exe 4212 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,-2842 = "Saratov Standard Time" 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time" 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-82 = "Atlantic 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" 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-271 = "Greenwich Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2512 = "Lord Howe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time" 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.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,-1822 = "Russia TZ 1 Standard Time" 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2511 = "Lord Howe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-364 = "Middle East 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)" 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time" 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.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,-2392 = "Aleutian Standard Time" 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-282 = "Central Europe Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.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\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time" 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time" 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\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,-2871 = "Magallanes Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-381 = "South Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-631 = "Tokyo Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.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" 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-841 = "Argentina Daylight 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" 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.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,-2001 = "Cabo Verde Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4396 powershell.exe 4396 powershell.exe 5036 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe 5036 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe 5048 powershell.exe 5048 powershell.exe 4124 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe 4124 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe 4124 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe 4124 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe 4124 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe 4124 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe 4124 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe 4124 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe 4124 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe 4124 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe 3100 powershell.exe 3100 powershell.exe 532 powershell.exe 532 powershell.exe 2376 powershell.exe 2376 powershell.exe 3992 powershell.exe 3992 powershell.exe 2448 powershell.exe 2448 powershell.exe 4608 injector.exe 4608 injector.exe 4608 injector.exe 4608 injector.exe 4608 injector.exe 4608 injector.exe 4608 injector.exe 4608 injector.exe 1864 csrss.exe 1864 csrss.exe 4608 injector.exe 4608 injector.exe 4608 injector.exe 4608 injector.exe 4608 injector.exe 4608 injector.exe 1864 csrss.exe 1864 csrss.exe 4608 injector.exe 4608 injector.exe 1864 csrss.exe 1864 csrss.exe 4608 injector.exe 4608 injector.exe 4608 injector.exe 4608 injector.exe 4608 injector.exe 4608 injector.exe 4608 injector.exe 4608 injector.exe 4608 injector.exe 4608 injector.exe 4608 injector.exe 4608 injector.exe 4608 injector.exe 4608 injector.exe 4608 injector.exe 4608 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4396 powershell.exe Token: SeDebugPrivilege 5036 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe Token: SeImpersonatePrivilege 5036 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe Token: SeDebugPrivilege 5048 powershell.exe Token: SeDebugPrivilege 3100 powershell.exe Token: SeDebugPrivilege 532 powershell.exe Token: SeDebugPrivilege 2376 powershell.exe Token: SeDebugPrivilege 3992 powershell.exe Token: SeDebugPrivilege 2448 powershell.exe Token: SeSystemEnvironmentPrivilege 1864 csrss.exe Token: SeSecurityPrivilege 208 sc.exe Token: SeSecurityPrivilege 208 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 5036 wrote to memory of 4396 5036 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe 94 PID 5036 wrote to memory of 4396 5036 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe 94 PID 5036 wrote to memory of 4396 5036 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe 94 PID 4124 wrote to memory of 5048 4124 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe 100 PID 4124 wrote to memory of 5048 4124 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe 100 PID 4124 wrote to memory of 5048 4124 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe 100 PID 4124 wrote to memory of 3964 4124 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe 102 PID 4124 wrote to memory of 3964 4124 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe 102 PID 3964 wrote to memory of 4304 3964 cmd.exe 104 PID 3964 wrote to memory of 4304 3964 cmd.exe 104 PID 4124 wrote to memory of 3100 4124 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe 105 PID 4124 wrote to memory of 3100 4124 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe 105 PID 4124 wrote to memory of 3100 4124 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe 105 PID 4124 wrote to memory of 532 4124 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe 108 PID 4124 wrote to memory of 532 4124 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe 108 PID 4124 wrote to memory of 532 4124 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe 108 PID 4124 wrote to memory of 1864 4124 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe 110 PID 4124 wrote to memory of 1864 4124 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe 110 PID 4124 wrote to memory of 1864 4124 4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe 110 PID 1864 wrote to memory of 2376 1864 csrss.exe 112 PID 1864 wrote to memory of 2376 1864 csrss.exe 112 PID 1864 wrote to memory of 2376 1864 csrss.exe 112 PID 1864 wrote to memory of 3992 1864 csrss.exe 117 PID 1864 wrote to memory of 3992 1864 csrss.exe 117 PID 1864 wrote to memory of 3992 1864 csrss.exe 117 PID 1864 wrote to memory of 2448 1864 csrss.exe 120 PID 1864 wrote to memory of 2448 1864 csrss.exe 120 PID 1864 wrote to memory of 2448 1864 csrss.exe 120 PID 1864 wrote to memory of 4608 1864 csrss.exe 122 PID 1864 wrote to memory of 4608 1864 csrss.exe 122 PID 1744 wrote to memory of 3384 1744 windefender.exe 128 PID 1744 wrote to memory of 3384 1744 windefender.exe 128 PID 1744 wrote to memory of 3384 1744 windefender.exe 128 PID 3384 wrote to memory of 208 3384 cmd.exe 129 PID 3384 wrote to memory of 208 3384 cmd.exe 129 PID 3384 wrote to memory of 208 3384 cmd.exe 129 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe"C:\Users\Admin\AppData\Local\Temp\4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5036 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4396
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C:\Users\Admin\AppData\Local\Temp\4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.exe"C:\Users\Admin\AppData\Local\Temp\4e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e.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:4124 -
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:5048
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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:3964 -
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:4304
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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:3100
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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:532
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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:1864 -
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:2376
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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:4212
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1520
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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:3992
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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:2448
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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:4608
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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:2436
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1744 -
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:3384 -
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:208
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4284
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b25870aa060645950f9a2a663485e207
SHA15cea9c46a8c17c9e5baecb8b4e8658c0392be79a
SHA25676d23898926afcf05d1efdc8cf9661303779fd841b7dd06fa00f54b83d2f2e47
SHA512b6f89d595d5ffbf3a41ad7020f5f3141078e7359bb5e319636914f7a541054b553ddddcce41f94514024f567a540cec5a069985f70d3c8b659fd52de0656f856
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a3e4c42c5ced87d905f28b6c27cc07c9
SHA116bdac19f0108e48bbb3c9eecd754c9205f0b646
SHA2566f7ee16c61b6f4a00c1b0df39802c33c1942d0b0a0ff6e0371f28075a746d299
SHA512a026731329896595c40158c6e0587dd385e823ef9deb7ac7f74783334dc2aea7588e9cd730c02f2d9110f478ae99272afc486c253477f088e764be9178f27bf5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD590a2f9c0690a877901e27782ddc86509
SHA14aef8aa29c7d7be128683cd71ba73c354dec7965
SHA2562a5ffc60d4905bf3b257f2b8d7a1c4e4aa441ba5b041619e163c72828eebece8
SHA512c08ba336e49afd8545cb8ebf1328dd6515ec192a510ebe145bbe7f056c0df2ec8a6a14317e0a3b5313bd1f0b95e50abbaa541bc9791bfadcf48030a510a278f7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a73940a4b9c6f8986b4de0634bfe5945
SHA17101b90a532ddc697326680ce3b3fb3efa5834b0
SHA256b9b755a9ac78c823bde6c754cf7490458dee7bda92f3691162a8beb559fcfaf3
SHA5122a451c7529e746d863da4aa0f2d3cc08d4d5075556dfa2d015c0630587bbb2a077c2ae2a5f25ea4c15e06021c65d7c8211911a3566bf93d3d0b993530171532c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD581c55b26f647065767f340c412c1a5d1
SHA1bb4e26117f0fad33a3e8561bd2c2cf6a14e5b55b
SHA25605d4f7620b3812113e990b2d398b51e51e01c6f45db0254d172c3a250bd00e2c
SHA512992d49a948114002cb226b72df8f9d3d19321db64eb20bbecd3f1920b51ae65f9ec174f5622ccaeeb87fb56d4a609a785f7779d4f838f8990ec028fb26b5d61d
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Filesize
4.1MB
MD549841b2e28ec3064a96349c412ce30c7
SHA15c967fe752f5f93f1d433133aff4dfcd98a71879
SHA2564e3530c68beda0ec9bfb49b078425165825ea7f1ed79463b898d458febf7c23e
SHA512430c10e5ff3868b37db2154584b8b376d90519fd91a07ad7296a26687669a1c9901b8b0aed141c1b2f2c5215d2e54d67275a93817ee004e38b6234b2123d4dbd
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec