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Analysis
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max time kernel
150s -
max time network
129s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
13/05/2024, 20:51
Static task
static1
Behavioral task
behavioral1
Sample
c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe
Resource
win10v2004-20240508-en
General
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Target
c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe
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Size
4.1MB
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MD5
e85c035504448b2ce0b7dea047c2aff2
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SHA1
159b5eac78b590b638479ad703dec0bd3177052f
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SHA256
c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994
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SHA512
18ae15dc91c09d7a9c1498081384c647b4b43c08bc2fdec9bcb75b1c5dd836ecd7ec1ace8a52adbeafb2904f6200495cc6095699e9587ed3bacdfd8890c4f5ea
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SSDEEP
98304:3qpMRaJi3sEqIr6ilJJkay2XIp4ZT71i5GwG4N1PBcavz8ax:3qpMRJcE1nJkaVIp4ZT7zwBrzdx
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/1372-2-0x0000000004D00000-0x00000000055EB000-memory.dmp family_glupteba behavioral2/memory/1372-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1372-52-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/1372-63-0x0000000004D00000-0x00000000055EB000-memory.dmp family_glupteba behavioral2/memory/1372-127-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4192-126-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4660-201-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4660-214-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4660-217-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4660-220-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4660-224-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4660-228-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4660-234-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4660-237-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4660-240-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4660-244-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4660-250-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4660-254-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4936 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4660 csrss.exe 1244 injector.exe 3528 windefender.exe 1408 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa1b-205.dat upx behavioral2/memory/3528-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3528-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1408-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1408-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1408-225-0x0000000000400000-0x00000000008DF000-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\"" csrss.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\"" c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.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 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 -
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 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe File created C:\Windows\rss\csrss.exe c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.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 704 sc.exe -
pid Process 2608 powershell.exe 3748 powershell.exe 2176 powershell.exe 3144 powershell.exe 3504 powershell.exe 3416 powershell.exe 820 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 2188 schtasks.exe 4388 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,-161 = "Central Daylight Time" c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-435 = "Georgian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3142 = "South Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2142 = "Transbaikal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-892 = "Morocco Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-511 = "Central Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-41 = "E. South America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-434 = "Georgian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time" c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2891 = "Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.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,-671 = "AUS Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2532 = "Chatham Islands Standard Time" windefender.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\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time" c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-262 = "GMT Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs 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,-731 = "Fiji Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-891 = "Morocco Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-361 = "GTB Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time" c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\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\@tzres.dll,-2411 = "Marquesas Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2176 powershell.exe 2176 powershell.exe 1372 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe 1372 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe 3144 powershell.exe 3144 powershell.exe 4192 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe 4192 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe 4192 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe 4192 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe 4192 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe 4192 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe 4192 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe 4192 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe 4192 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe 4192 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe 3504 powershell.exe 3504 powershell.exe 3416 powershell.exe 3416 powershell.exe 820 powershell.exe 820 powershell.exe 2608 powershell.exe 2608 powershell.exe 3748 powershell.exe 3748 powershell.exe 1244 injector.exe 1244 injector.exe 1244 injector.exe 1244 injector.exe 1244 injector.exe 1244 injector.exe 4660 csrss.exe 4660 csrss.exe 1244 injector.exe 1244 injector.exe 1244 injector.exe 1244 injector.exe 1244 injector.exe 1244 injector.exe 4660 csrss.exe 4660 csrss.exe 1244 injector.exe 1244 injector.exe 1244 injector.exe 1244 injector.exe 4660 csrss.exe 4660 csrss.exe 1244 injector.exe 1244 injector.exe 1244 injector.exe 1244 injector.exe 1244 injector.exe 1244 injector.exe 1244 injector.exe 1244 injector.exe 1244 injector.exe 1244 injector.exe 1244 injector.exe 1244 injector.exe 1244 injector.exe 1244 injector.exe 1244 injector.exe 1244 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 2176 powershell.exe Token: SeDebugPrivilege 1372 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe Token: SeImpersonatePrivilege 1372 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe Token: SeDebugPrivilege 3144 powershell.exe Token: SeDebugPrivilege 3504 powershell.exe Token: SeDebugPrivilege 3416 powershell.exe Token: SeDebugPrivilege 820 powershell.exe Token: SeDebugPrivilege 2608 powershell.exe Token: SeDebugPrivilege 3748 powershell.exe Token: SeSystemEnvironmentPrivilege 4660 csrss.exe Token: SeSecurityPrivilege 704 sc.exe Token: SeSecurityPrivilege 704 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1372 wrote to memory of 2176 1372 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe 83 PID 1372 wrote to memory of 2176 1372 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe 83 PID 1372 wrote to memory of 2176 1372 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe 83 PID 4192 wrote to memory of 3144 4192 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe 88 PID 4192 wrote to memory of 3144 4192 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe 88 PID 4192 wrote to memory of 3144 4192 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe 88 PID 4192 wrote to memory of 1764 4192 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe 90 PID 4192 wrote to memory of 1764 4192 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe 90 PID 1764 wrote to memory of 4936 1764 cmd.exe 92 PID 1764 wrote to memory of 4936 1764 cmd.exe 92 PID 4192 wrote to memory of 3504 4192 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe 93 PID 4192 wrote to memory of 3504 4192 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe 93 PID 4192 wrote to memory of 3504 4192 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe 93 PID 4192 wrote to memory of 3416 4192 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe 95 PID 4192 wrote to memory of 3416 4192 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe 95 PID 4192 wrote to memory of 3416 4192 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe 95 PID 4192 wrote to memory of 4660 4192 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe 97 PID 4192 wrote to memory of 4660 4192 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe 97 PID 4192 wrote to memory of 4660 4192 c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe 97 PID 4660 wrote to memory of 820 4660 csrss.exe 98 PID 4660 wrote to memory of 820 4660 csrss.exe 98 PID 4660 wrote to memory of 820 4660 csrss.exe 98 PID 4660 wrote to memory of 2608 4660 csrss.exe 104 PID 4660 wrote to memory of 2608 4660 csrss.exe 104 PID 4660 wrote to memory of 2608 4660 csrss.exe 104 PID 4660 wrote to memory of 3748 4660 csrss.exe 106 PID 4660 wrote to memory of 3748 4660 csrss.exe 106 PID 4660 wrote to memory of 3748 4660 csrss.exe 106 PID 4660 wrote to memory of 1244 4660 csrss.exe 108 PID 4660 wrote to memory of 1244 4660 csrss.exe 108 PID 3528 wrote to memory of 2820 3528 windefender.exe 114 PID 3528 wrote to memory of 2820 3528 windefender.exe 114 PID 3528 wrote to memory of 2820 3528 windefender.exe 114 PID 2820 wrote to memory of 704 2820 cmd.exe 115 PID 2820 wrote to memory of 704 2820 cmd.exe 115 PID 2820 wrote to memory of 704 2820 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\c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe"C:\Users\Admin\AppData\Local\Temp\c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1372 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2176
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C:\Users\Admin\AppData\Local\Temp\c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.exe"C:\Users\Admin\AppData\Local\Temp\c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994.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:4192 -
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:3144
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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:1764 -
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:4936
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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:3504
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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:3416
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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:4660 -
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:820
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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:2188
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1088
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2608
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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:3748
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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:1244
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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:4388
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3528 -
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:2820 -
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:704
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1408
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
MD58aef9e290e85ab9b14d0782140bb7bd8
SHA1e6b41658b81b3ed35f0339dec703263353af021b
SHA25680dafca071250fa06c14e807ca20501844b19412003223b3d66844ded68c82da
SHA512d6f92a18e0fecb302775e4a5f209f17012bbadf1de61c6272d7cc240990e964eabef0788be8fbcf1e5dba0345ff4dacfd4af698ac06b9bc3ca8bb08ecc3b1706
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5cc69ccd113b91404b8aeefcaa58f60bf
SHA173ac04df33461827191b394bd5922254d334cb84
SHA256724c9da0a9c15c0acb1a6a0833b3e59a60522f84a15dafb5f637ede86c87e28f
SHA5122223060c27825955db65e0e96a8c9014242e1325bb77e570243d1a38703bc0e13cfe9a99709720fb6763cdcb221099add4d69098f49f7d89a03e54c93f5db307
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e9c289168a8cebafb5b0de51aba5ba38
SHA198677a8f4dbba147188400d70d4e7f1714dc57d7
SHA2562cd219c46dc5b5359ddff061e1acb48f5694f3903826fc5d9f41de97ef842004
SHA5127bdcfdfd7489e73c8aee18175980a0f076389ac2ea01dc419381be85cb0288fe6e5751130ef80662b57a4526259645764eeec6314578e46189b2f0f2f48d73c3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57f88295598a15c7acdaabe9877b5ce26
SHA1b7848b1fa489e729d2e52706819be9259de2d93d
SHA256a069eaee144ff6dc8d62418f1fe953068a40b0fe665ebfe2c74bef14e143a6ed
SHA51244d6b27521e1b854738099010fdaad744ec1af4c723ed605a8ea32d1a398d0919829286da1a904f462797d455037aa34310e52d2cdedb113453c2613b966a1d9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e1ca814c5e71ee864971619d199b2c2d
SHA1bc0660da07eb0df093642e4c4a349cd1ec222a64
SHA256c028b43e98c2a2d52455b96e85de96fa0800afcaf4b3ace42fde14264fe531d3
SHA5121f608ca0b1cf764705b3031c1fa7e12c905c38b63a017983f9f944844ec4d5ad4614133c6abff4516bb50108772076ba8b9e0c698a8e7a3af93d0963c11fe946
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Filesize
4.1MB
MD5e85c035504448b2ce0b7dea047c2aff2
SHA1159b5eac78b590b638479ad703dec0bd3177052f
SHA256c188abb50e6470d9407d37c58967f139130a08b0d4742b7c2a17a66ce8e72994
SHA51218ae15dc91c09d7a9c1498081384c647b4b43c08bc2fdec9bcb75b1c5dd836ecd7ec1ace8a52adbeafb2904f6200495cc6095699e9587ed3bacdfd8890c4f5ea
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec