Analysis
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max time kernel
150s -
max time network
154s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 16:24
Static task
static1
Behavioral task
behavioral1
Sample
64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe
Resource
win10v2004-20240508-en
General
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Target
64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe
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Size
4.1MB
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MD5
51638aaa58158dd58d2d49d4e140ed20
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SHA1
41beaf282684d291561c96a0ab7dfa051da3f48b
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SHA256
64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5
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SHA512
760e6511cd0d87e3c2dbf4cab5d919f33c6dccb019b2d59d334f73a496268b0970c5e576613f71a1efde3f13d236582e8cb696930626b1f92cd72667e3b737c3
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SSDEEP
98304:BvHfbigA34ifkpJZQU0TgaIfW6UkFHwAhDtgwFW+1A:BvHfb2IifudqhIuUHwAjW+S
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/1212-2-0x0000000004950000-0x000000000523B000-memory.dmp family_glupteba behavioral2/memory/1212-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1212-88-0x0000000004950000-0x000000000523B000-memory.dmp family_glupteba behavioral2/memory/1212-85-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/1212-146-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2476-145-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3088-201-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3088-212-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3088-215-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3088-219-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3088-223-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3088-228-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3088-232-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3088-235-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3088-239-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3088-243-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3088-248-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3088-251-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3088-255-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 3860 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 3088 csrss.exe 1848 injector.exe 1648 windefender.exe 4060 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x000200000002a9f7-205.dat upx behavioral2/memory/1648-206-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1648-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4060-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4060-224-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
csrss.exe64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1672260578-815027929-964132517-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-1672260578-815027929-964132517-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.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.
Processes:
csrss.exedescription ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription 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.
Processes:
64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe -
Drops file in Windows directory 4 IoCs
Processes:
64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe File created C:\Windows\rss\csrss.exe 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.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.
Processes:
sc.exepid Process 2432 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 2608 powershell.exe 3688 powershell.exe 2248 powershell.exe 1988 powershell.exe 3060 powershell.exe 3344 powershell.exe 3552 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid Process 1484 schtasks.exe 1896 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exewindefender.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time" 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-652 = "AUS Central Standard 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\@tzres.dll,-561 = "SE Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-961 = "Paraguay Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time" 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.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,-682 = "E. Australia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2411 = "Marquesas Daylight Time" windefender.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\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2492 = "Aus Central W. Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-201 = "US Mountain Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1472 = "Magadan Standard Time" windefender.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,-391 = "Arab Daylight Time" 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.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,-491 = "India Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-291 = "Central European Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time" 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.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" 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2412 = "Marquesas Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2572 = "Turks and Caicos Standard Time" windefender.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\@tzres.dll,-435 = "Georgian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time" 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-81 = "Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1021 = "Bangladesh Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-412 = "E. Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-361 = "GTB Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2341 = "Haiti Daylight Time" windefender.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,-92 = "Pacific SA Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2141 = "Transbaikal Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-512 = "Central Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exepowershell.exe64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 1988 powershell.exe 1988 powershell.exe 1212 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe 1212 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe 3060 powershell.exe 3060 powershell.exe 2476 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe 2476 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe 2476 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe 2476 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe 2476 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe 2476 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe 2476 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe 2476 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe 2476 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe 2476 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe 3344 powershell.exe 3344 powershell.exe 3552 powershell.exe 3552 powershell.exe 2608 powershell.exe 2608 powershell.exe 3688 powershell.exe 3688 powershell.exe 2248 powershell.exe 2248 powershell.exe 1848 injector.exe 1848 injector.exe 1848 injector.exe 1848 injector.exe 1848 injector.exe 1848 injector.exe 3088 csrss.exe 3088 csrss.exe 1848 injector.exe 1848 injector.exe 1848 injector.exe 1848 injector.exe 1848 injector.exe 1848 injector.exe 3088 csrss.exe 3088 csrss.exe 1848 injector.exe 1848 injector.exe 1848 injector.exe 1848 injector.exe 1848 injector.exe 1848 injector.exe 3088 csrss.exe 3088 csrss.exe 1848 injector.exe 1848 injector.exe 1848 injector.exe 1848 injector.exe 1848 injector.exe 1848 injector.exe 1848 injector.exe 1848 injector.exe 1848 injector.exe 1848 injector.exe 1848 injector.exe 1848 injector.exe 1848 injector.exe 1848 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 1988 powershell.exe Token: SeDebugPrivilege 1212 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe Token: SeImpersonatePrivilege 1212 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe Token: SeDebugPrivilege 3060 powershell.exe Token: SeDebugPrivilege 3344 powershell.exe Token: SeDebugPrivilege 3552 powershell.exe Token: SeDebugPrivilege 2608 powershell.exe Token: SeDebugPrivilege 3688 powershell.exe Token: SeDebugPrivilege 2248 powershell.exe Token: SeSystemEnvironmentPrivilege 3088 csrss.exe Token: SeSecurityPrivilege 2432 sc.exe Token: SeSecurityPrivilege 2432 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 1212 wrote to memory of 1988 1212 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe 81 PID 1212 wrote to memory of 1988 1212 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe 81 PID 1212 wrote to memory of 1988 1212 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe 81 PID 2476 wrote to memory of 3060 2476 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe 87 PID 2476 wrote to memory of 3060 2476 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe 87 PID 2476 wrote to memory of 3060 2476 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe 87 PID 2476 wrote to memory of 2624 2476 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe 89 PID 2476 wrote to memory of 2624 2476 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe 89 PID 2624 wrote to memory of 3860 2624 cmd.exe 91 PID 2624 wrote to memory of 3860 2624 cmd.exe 91 PID 2476 wrote to memory of 3344 2476 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe 92 PID 2476 wrote to memory of 3344 2476 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe 92 PID 2476 wrote to memory of 3344 2476 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe 92 PID 2476 wrote to memory of 3552 2476 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe 94 PID 2476 wrote to memory of 3552 2476 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe 94 PID 2476 wrote to memory of 3552 2476 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe 94 PID 2476 wrote to memory of 3088 2476 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe 96 PID 2476 wrote to memory of 3088 2476 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe 96 PID 2476 wrote to memory of 3088 2476 64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe 96 PID 3088 wrote to memory of 2608 3088 csrss.exe 97 PID 3088 wrote to memory of 2608 3088 csrss.exe 97 PID 3088 wrote to memory of 2608 3088 csrss.exe 97 PID 3088 wrote to memory of 3688 3088 csrss.exe 102 PID 3088 wrote to memory of 3688 3088 csrss.exe 102 PID 3088 wrote to memory of 3688 3088 csrss.exe 102 PID 3088 wrote to memory of 2248 3088 csrss.exe 105 PID 3088 wrote to memory of 2248 3088 csrss.exe 105 PID 3088 wrote to memory of 2248 3088 csrss.exe 105 PID 3088 wrote to memory of 1848 3088 csrss.exe 107 PID 3088 wrote to memory of 1848 3088 csrss.exe 107 PID 1648 wrote to memory of 2672 1648 windefender.exe 113 PID 1648 wrote to memory of 2672 1648 windefender.exe 113 PID 1648 wrote to memory of 2672 1648 windefender.exe 113 PID 2672 wrote to memory of 2432 2672 cmd.exe 114 PID 2672 wrote to memory of 2432 2672 cmd.exe 114 PID 2672 wrote to memory of 2432 2672 cmd.exe 114 -
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\64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe"C:\Users\Admin\AppData\Local\Temp\64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1212 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1988
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C:\Users\Admin\AppData\Local\Temp\64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.exe"C:\Users\Admin\AppData\Local\Temp\64421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5.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:2476 -
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:3060
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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:2624 -
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:3860
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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:3344
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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:3552
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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:3088 -
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:2608
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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:1484
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3568
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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:3688
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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:2248
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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:1848
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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:1896
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1648 -
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:2672 -
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:2432
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4060
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
MD5813339124e3de6a2e3332daf866aa36e
SHA1754d1ab720b33d1dac55376f084170f0f56b681f
SHA256b1b6990bb0ca0ecadae47f30ccd56e134530091313cc02fbfa9f265cd8238b53
SHA512519db77c4f6fac9a52794b1c46693af66bc750d476f4de563a4dde7f6c3cc9f06e4caba72500124629f01f27214aaaafb90905969a97164b3dac45c6fef80dde
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58c546ad252054a0f00a77146f360b956
SHA1ac1a25d6d85919c63017d358a1084ce7f300c92e
SHA256b7cab696f208c336668db1351eeefa38f7b5a158f51332040427d8a57b4c3453
SHA512db5500b1f9b34f473abe1266e7eb6939017fbf274d373c33696afe2bf27a4a979a55eb24ec3b21a6ea6737064b399a91b0b0b8eb49a231cf29f9b999120b6751
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD582594a70d150e8dd1ec5c122ace5e63b
SHA165a5aa3b63a6cf17c6fdc588adb692aa39f4665a
SHA256d00596624e3d89643dc6ce68b9aafd2c9d44d306ba47f027a4da0b91e7471593
SHA512106e9963c55244cd356eaedc937bacf89c84cf3c60c77373a918f49a82f470605e443118436b1bb30d5a2e7b1bd23aebf644f1c1c2542e4a63d5d4d6f47a5980
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56e1030679bc7dff0b1df3ee3a1f861dd
SHA1a4a245b5bde81aef2d4563a2fba6c690c1fb0dd5
SHA256464f0122f6a3fac74dc9e6edc8909cb83f763e11efa0551c71b468e49355a798
SHA5120a2b1f7e482752454c069849246e19ede8fca2426bcc61f98860e26c24af18b9439f2326d1681a2f6322d4f1249426e2dae69d11f7babebc4ebe9766a3fc89a7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59b1ed149273eff390379e1d9c619e943
SHA1ff84f2286493c9381222d5ad04b6234d8b507810
SHA256043989601b667076d65383b5ca41a92528d4de2ded4ded45685695237dc00a7e
SHA512a27f258215b4985bc61abdc0fc07db99e3b5340c0b2bca35b032025e59010f171b3df015315380d96bcacdd0a775064d47f92d50c0be129ddba6e5f961dcc281
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Filesize
4.1MB
MD551638aaa58158dd58d2d49d4e140ed20
SHA141beaf282684d291561c96a0ab7dfa051da3f48b
SHA25664421518b12f58757d77928f05284730d5ed451ad19e21cc01c32c69511aa2a5
SHA512760e6511cd0d87e3c2dbf4cab5d919f33c6dccb019b2d59d334f73a496268b0970c5e576613f71a1efde3f13d236582e8cb696930626b1f92cd72667e3b737c3
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec