Analysis
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max time kernel
150s -
max time network
125s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
19/04/2024, 17:52
Static task
static1
Behavioral task
behavioral1
Sample
c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe
Resource
win10v2004-20240412-en
General
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Target
c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe
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Size
4.2MB
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MD5
d8816ed8b56dae3d982af42125a864cb
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SHA1
14f694bde2c90ab8ba9f3e5ad715ce17ded0fe3e
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SHA256
c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab
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SHA512
fe265eff381f7cba0827497e7ccb8a224c1229f2a73fd6324eca8bcc9a5e1fdec898406afe74ded666fa7dbbc38c74348c245a86db762a699fc9c060a1e85654
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SSDEEP
98304:lBy5JAu+Hk0Et5Mgg8VWlfA2+5+VVv7Fm6fCG:eAu+ENnjVyYiVNw4T
Malware Config
Signatures
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Glupteba payload 20 IoCs
resource yara_rule behavioral2/memory/3856-2-0x00000000040C0000-0x00000000049AB000-memory.dmp family_glupteba behavioral2/memory/3856-3-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/3280-44-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/3856-49-0x00000000040C0000-0x00000000049AB000-memory.dmp family_glupteba behavioral2/memory/3856-71-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/3280-135-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/3280-159-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2432-240-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2432-250-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2432-254-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2432-258-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2432-261-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2432-265-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2432-271-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2432-275-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2432-279-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2432-283-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2432-286-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2432-289-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2432-293-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4868 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2432 csrss.exe 1484 injector.exe 1328 windefender.exe 4940 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9bf-244.dat upx behavioral2/memory/1328-248-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4940-253-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4940-262-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3777591257-2471171023-3629228286-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe Set value (str) \REGISTRY\USER\S-1-5-21-3777591257-2471171023-3629228286-1000\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 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe File created C:\Windows\rss\csrss.exe c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.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 4448 sc.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 2420 2724 WerFault.exe 78 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1700 schtasks.exe 2364 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.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\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-361 = "GTB Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-791 = "SA Western Daylight Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-651 = "AUS Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-962 = "Paraguay Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2322 = "Sakhalin Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-364 = "Middle East Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time" c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time" c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-392 = "Arab Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-731 = "Fiji Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time" c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-91 = "Pacific SA Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-201 = "US Mountain Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2611 = "Bougainville Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-365 = "Middle East Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2412 = "Marquesas Standard Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2871 = "Magallanes Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time" c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time" c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-191 = "Mountain Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1912 = "Russia TZ 10 Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\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\26\52C64B7E\@tzres.dll,-1472 = "Magadan Standard Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2162 = "Altai Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-401 = "Arabic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-435 = "Georgian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\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\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2724 powershell.exe 2724 powershell.exe 3856 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe 3856 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe 3768 powershell.exe 3768 powershell.exe 3280 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe 3280 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe 3280 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe 3280 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe 3280 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe 3280 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe 3280 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe 3280 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe 3280 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe 3280 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe 4636 powershell.exe 4636 powershell.exe 3320 powershell.exe 3320 powershell.exe 3252 powershell.exe 3252 powershell.exe 2012 powershell.exe 2012 powershell.exe 1668 powershell.exe 1668 powershell.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 2432 csrss.exe 2432 csrss.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 2432 csrss.exe 2432 csrss.exe 1484 injector.exe 1484 injector.exe 2432 csrss.exe 2432 csrss.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe 1484 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 2724 powershell.exe Token: SeDebugPrivilege 3856 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe Token: SeImpersonatePrivilege 3856 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe Token: SeDebugPrivilege 3768 powershell.exe Token: SeDebugPrivilege 4636 powershell.exe Token: SeDebugPrivilege 3320 powershell.exe Token: SeDebugPrivilege 3252 powershell.exe Token: SeDebugPrivilege 2012 powershell.exe Token: SeDebugPrivilege 1668 powershell.exe Token: SeSystemEnvironmentPrivilege 2432 csrss.exe Token: SeSecurityPrivilege 4448 sc.exe Token: SeSecurityPrivilege 4448 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3856 wrote to memory of 2724 3856 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe 78 PID 3856 wrote to memory of 2724 3856 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe 78 PID 3856 wrote to memory of 2724 3856 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe 78 PID 3280 wrote to memory of 3768 3280 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe 86 PID 3280 wrote to memory of 3768 3280 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe 86 PID 3280 wrote to memory of 3768 3280 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe 86 PID 3280 wrote to memory of 1368 3280 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe 88 PID 3280 wrote to memory of 1368 3280 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe 88 PID 1368 wrote to memory of 4868 1368 cmd.exe 90 PID 1368 wrote to memory of 4868 1368 cmd.exe 90 PID 3280 wrote to memory of 4636 3280 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe 91 PID 3280 wrote to memory of 4636 3280 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe 91 PID 3280 wrote to memory of 4636 3280 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe 91 PID 3280 wrote to memory of 3320 3280 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe 93 PID 3280 wrote to memory of 3320 3280 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe 93 PID 3280 wrote to memory of 3320 3280 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe 93 PID 3280 wrote to memory of 2432 3280 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe 95 PID 3280 wrote to memory of 2432 3280 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe 95 PID 3280 wrote to memory of 2432 3280 c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe 95 PID 2432 wrote to memory of 3252 2432 csrss.exe 96 PID 2432 wrote to memory of 3252 2432 csrss.exe 96 PID 2432 wrote to memory of 3252 2432 csrss.exe 96 PID 2432 wrote to memory of 2012 2432 csrss.exe 102 PID 2432 wrote to memory of 2012 2432 csrss.exe 102 PID 2432 wrote to memory of 2012 2432 csrss.exe 102 PID 2432 wrote to memory of 1668 2432 csrss.exe 104 PID 2432 wrote to memory of 1668 2432 csrss.exe 104 PID 2432 wrote to memory of 1668 2432 csrss.exe 104 PID 2432 wrote to memory of 1484 2432 csrss.exe 106 PID 2432 wrote to memory of 1484 2432 csrss.exe 106 PID 1328 wrote to memory of 1496 1328 windefender.exe 112 PID 1328 wrote to memory of 1496 1328 windefender.exe 112 PID 1328 wrote to memory of 1496 1328 windefender.exe 112 PID 1496 wrote to memory of 4448 1496 cmd.exe 113 PID 1496 wrote to memory of 4448 1496 cmd.exe 113 PID 1496 wrote to memory of 4448 1496 cmd.exe 113 -
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\c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe"C:\Users\Admin\AppData\Local\Temp\c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3856 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2724 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2724 -s 24283⤵
- Program crash
PID:2420
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C:\Users\Admin\AppData\Local\Temp\c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.exe"C:\Users\Admin\AppData\Local\Temp\c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab.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:3280 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3768
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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:1368 -
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:4868
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4636
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3320
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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:2432 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3252
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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:1700
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1860
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2012
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1668
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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:1484
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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:2364
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1328 -
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:1496 -
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:4448
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2724 -ip 27241⤵PID:436
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4940
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
MD5a6481bb47149875041bd9abe0f697036
SHA1d01de3c26b31bf5d75b1e1b1bbd24970cda1ed06
SHA256e98b4f2ec097a06ac345aeccafd905f1eb93036f9eb50cdd86b35418199495fc
SHA5124d6224e60e897566e6a6ff575aae758ae420fb806331f62ef3923d3afa878cac7790ae2d54ede99fd6e1c8359bb66d58005e085a5c4811b2585ae1b014c6a045
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57cb45dbe48c642ae9cb447aeae1128d9
SHA180c1277377508a16c23567eb9fc6702a36d29866
SHA256f988facf1fa506b629aa6c932d9978cc3a309591c3ea11b6e528922b30dc6ff8
SHA5123b0d59e812b3b0b13f0823268bf0af4020e96c67a78f4e5874a68e4f10272577f03847c6885bd76cb23183d0360356bf2db5a9af685f0788178e3d92c85190d6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD546b3885947e3182d565bb4c3e2f99d4a
SHA1e4ee563f1663c7384a5f2ce6818631b7dc98a247
SHA256f5ada2ea0308f3971a1b1007f82e29251a2f75d8817f2dcac483b0d2c87304ef
SHA512ef3ca48d79b823148dd966df248ff8946a09b5761ef8c2ac3ced78f26019ea82dd7c7ceed673b77991e103f4f02bdf61db4ea9744f994f7d0076ad6d1ed619e8
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52cf8b0c0c4dcc464140231859d61320f
SHA1924bc578db05f581d497ddeca2ebc53cf470a5f8
SHA256e2e8e655b07cabaa4c5acd57555ee9c6513b844bc660ae92d84062b8c05ccde9
SHA5126fcb1282168919ecafa00dd8dd405fdfd83e95c2c2ac7d80ed397d4d313a6e386f031fd2d60215392273621bcc2cda111ce2d91094a562f847c11905223a334b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55545169ca290bb868a485578cffccc26
SHA11b80aac44597269669ff828a9baa07f23416cedd
SHA2561bf5b16e66f1c16be6f561d0566cd8bef53d7b66f27916363b42c4594e1c7814
SHA512003c038382eb767aec0834f9806406fc5cd6508e82d93e2c758849cf5ac332846a81417bfffd0995cf92ae60945767d15cecea83633d4741972fbbbd7bb6d346
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Filesize
4.2MB
MD5d8816ed8b56dae3d982af42125a864cb
SHA114f694bde2c90ab8ba9f3e5ad715ce17ded0fe3e
SHA256c16f62239a06fbbbf00415264823de4c8d11543f765e1b53ea08976e49a340ab
SHA512fe265eff381f7cba0827497e7ccb8a224c1229f2a73fd6324eca8bcc9a5e1fdec898406afe74ded666fa7dbbc38c74348c245a86db762a699fc9c060a1e85654
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec