Analysis
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max time kernel
172s -
max time network
180s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
12/10/2023, 01:07
Static task
static1
Behavioral task
behavioral1
Sample
255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe
Resource
win7-20230831-en
General
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Target
255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe
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Size
4.2MB
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MD5
c8c2a18d22504fe2dd51f78f8e9f6b8b
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SHA1
7cf9949badd4e7bddde3963795c96fdcfcc1e422
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SHA256
255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e
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SHA512
09c767400975f3d23baf86051c4cac03d8c728a730e7df1a7417bb36868cc065bca8250b1e22ac793e4f1d03ab361f9339e151195a6ced74088d0698be94a657
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SSDEEP
98304:P0NJcPwgVpnAhflow4DSidIjBMSPJ2c+HreHyKzaAu0qR2dM:6MAhflPidI1vPJ23SaAu9R2e
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/3712-2-0x0000000004C90000-0x000000000557B000-memory.dmp family_glupteba behavioral2/memory/3712-3-0x0000000000400000-0x0000000002987000-memory.dmp family_glupteba behavioral2/memory/3712-4-0x0000000000400000-0x0000000002987000-memory.dmp family_glupteba behavioral2/memory/3712-6-0x0000000004C90000-0x000000000557B000-memory.dmp family_glupteba behavioral2/memory/3712-58-0x0000000000400000-0x0000000002987000-memory.dmp family_glupteba behavioral2/memory/3712-64-0x0000000000400000-0x0000000002987000-memory.dmp family_glupteba behavioral2/memory/1292-65-0x0000000000400000-0x0000000002987000-memory.dmp family_glupteba behavioral2/memory/1292-96-0x0000000000400000-0x0000000002987000-memory.dmp family_glupteba behavioral2/memory/1292-104-0x0000000000400000-0x0000000002987000-memory.dmp family_glupteba behavioral2/memory/1292-169-0x0000000000400000-0x0000000002987000-memory.dmp family_glupteba behavioral2/memory/4440-270-0x0000000000400000-0x0000000002987000-memory.dmp family_glupteba behavioral2/memory/4440-271-0x0000000000400000-0x0000000002987000-memory.dmp family_glupteba behavioral2/memory/4440-272-0x0000000000400000-0x0000000002987000-memory.dmp family_glupteba behavioral2/memory/4440-273-0x0000000000400000-0x0000000002987000-memory.dmp family_glupteba behavioral2/memory/4440-274-0x0000000000400000-0x0000000002987000-memory.dmp family_glupteba behavioral2/memory/4440-275-0x0000000000400000-0x0000000002987000-memory.dmp family_glupteba behavioral2/memory/4440-276-0x0000000000400000-0x0000000002987000-memory.dmp family_glupteba behavioral2/memory/4440-277-0x0000000000400000-0x0000000002987000-memory.dmp family_glupteba -
Modifies Windows Firewall 1 TTPs 1 IoCs
pid Process 1592 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 4440 csrss.exe 4248 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Set value (str) \REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\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 8 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 created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
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 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\rss 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe File created C:\Windows\rss\csrss.exe 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 2756 3712 WerFault.exe 83 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2424 schtasks.exe 4716 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.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\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 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\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.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\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2292 powershell.exe 2292 powershell.exe 3712 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe 3712 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe 804 powershell.exe 804 powershell.exe 1292 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe 1292 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe 1292 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe 1292 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe 1292 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe 1292 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe 1292 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe 1292 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe 1292 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe 1292 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe 3748 powershell.exe 3748 powershell.exe 3084 powershell.exe 3084 powershell.exe 5040 powershell.exe 5040 powershell.exe 4648 powershell.exe 4648 powershell.exe 3688 powershell.exe 3688 powershell.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4440 csrss.exe 4440 csrss.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4440 csrss.exe 4440 csrss.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 2292 powershell.exe Token: SeDebugPrivilege 3712 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Token: SeImpersonatePrivilege 3712 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe Token: SeDebugPrivilege 804 powershell.exe Token: SeDebugPrivilege 3748 powershell.exe Token: SeDebugPrivilege 3084 powershell.exe Token: SeDebugPrivilege 5040 powershell.exe Token: SeDebugPrivilege 4648 powershell.exe Token: SeDebugPrivilege 3688 powershell.exe Token: SeSystemEnvironmentPrivilege 4440 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 3712 wrote to memory of 2292 3712 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe 87 PID 3712 wrote to memory of 2292 3712 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe 87 PID 3712 wrote to memory of 2292 3712 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe 87 PID 1292 wrote to memory of 804 1292 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe 101 PID 1292 wrote to memory of 804 1292 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe 101 PID 1292 wrote to memory of 804 1292 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe 101 PID 1292 wrote to memory of 3688 1292 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe 104 PID 1292 wrote to memory of 3688 1292 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe 104 PID 3688 wrote to memory of 1592 3688 cmd.exe 106 PID 3688 wrote to memory of 1592 3688 cmd.exe 106 PID 1292 wrote to memory of 3748 1292 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe 107 PID 1292 wrote to memory of 3748 1292 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe 107 PID 1292 wrote to memory of 3748 1292 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe 107 PID 1292 wrote to memory of 3084 1292 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe 109 PID 1292 wrote to memory of 3084 1292 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe 109 PID 1292 wrote to memory of 3084 1292 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe 109 PID 1292 wrote to memory of 4440 1292 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe 111 PID 1292 wrote to memory of 4440 1292 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe 111 PID 1292 wrote to memory of 4440 1292 255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe 111 PID 4440 wrote to memory of 5040 4440 csrss.exe 112 PID 4440 wrote to memory of 5040 4440 csrss.exe 112 PID 4440 wrote to memory of 5040 4440 csrss.exe 112 PID 4440 wrote to memory of 4648 4440 csrss.exe 118 PID 4440 wrote to memory of 4648 4440 csrss.exe 118 PID 4440 wrote to memory of 4648 4440 csrss.exe 118 PID 4440 wrote to memory of 3688 4440 csrss.exe 120 PID 4440 wrote to memory of 3688 4440 csrss.exe 120 PID 4440 wrote to memory of 3688 4440 csrss.exe 120 PID 4440 wrote to memory of 4248 4440 csrss.exe 122 PID 4440 wrote to memory of 4248 4440 csrss.exe 122 -
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\255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe"C:\Users\Admin\AppData\Local\Temp\255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3712 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2292
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C:\Users\Admin\AppData\Local\Temp\255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.exe"C:\Users\Admin\AppData\Local\Temp\255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e.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:1292 -
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:804
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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:3688 -
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:1592
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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:3748
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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:3084
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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.
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4440 -
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:5040
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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:2424
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4080
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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:4648
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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:3688
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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:4248
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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:4716
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3712 -s 9762⤵
- Program crash
PID:2756
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3712 -ip 37121⤵PID:4828
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
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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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache
Filesize35KB
MD5c0c4404d7fa40cfc426fa66648e532c2
SHA1d60dcafc42c6cca766a81d5bfdd8e86978940db0
SHA256ca8746b989ce25d54f1b7fa117f804f162d842228b7f6e9422aeaf0cc6a017f3
SHA512c84bb02966316ee10a38f35516964e4b2730a4a36ede9e13e8b3cf8669756dc7ed44fa5d06e30347050b854e6f82219a38db13dce3b16138354aa331c73d02b9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD526558dcf095884e5db010ae7e9c3039c
SHA1eb06dff4b2c30f7e97441495ba9969850f363906
SHA2565cfe75a26342590ae872755f58c3cf1938a45403a38b86296d29cccddae1e2a0
SHA51283b000a8608bf75171bda4210cfe4feae9ddfda90d24ad1ce6c03e70025c5778f6ae111018063e80c6bd275e36889f43df203706f096461109aca48e4da2ccf0
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD5b78aab40d999f27eaf213a11a0c3abe0
SHA1d93fe1f64789dae8fc2f384ec8bfc0864cf489fa
SHA25637af801aebcbbaa2a8274691deabaf760bdd683c2e24a18dd50dcd8d9158ce5b
SHA512d754c6734d70c8b1acaaf56a4cc025364397dfc527219d4e635aad4982f6929528c164d4089387bb3e0c8aad9c365291a8a3154bde1b38c2d81466979d0271c7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD5ff84bbb1931df526739628b9fb407013
SHA14242485378a3c3e69adb7ccb910ecaed1ab15ea6
SHA256de441d54c90817b47d96222311bc304e590c3c6756169941baa27aadcb96a59a
SHA512ec795df808d881787b21359f9200d34b6fc422219ec69357848f2d78e644ea0d3d9593cd532281be87b51e85b2b054e2b1643da32b079a22c083c01e29eec34d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD57d644ed78a7a8027c5bef8bcdc86c866
SHA156d0534beebaf72b8a5bd72b20bc45e1ce4cee3a
SHA256a3a5ae07316b26a409699c514b26b5ce0933f8a4d143414f2dc01cefe593551d
SHA512a1208f2bc064ef1ef02b407b773e49b050c60a8e7f288843d807ccb5c645459a13d74c2dc140430a0efc33725946e43d8cd6b9f488f9d2de8f9ea5a285912502
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD57f37ca924c1ea29a241350e2ff608fbf
SHA1f0356ffe391ad682675e833219abd6e8997279aa
SHA256bf8b73cdf86cbe0b844b0fcc4fa5a1dec540143e774bd6e47488d882d9f057d2
SHA51202ec87fbdd026c1d3b8f5cee66f0f7549a743d58df0e7eec20daf68ebaf1d0f604f2b4750ddd288964992af3313d668cb91c215c75ae5c6b2f0debf6e73376a1
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Filesize
4.2MB
MD5c8c2a18d22504fe2dd51f78f8e9f6b8b
SHA17cf9949badd4e7bddde3963795c96fdcfcc1e422
SHA256255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e
SHA51209c767400975f3d23baf86051c4cac03d8c728a730e7df1a7417bb36868cc065bca8250b1e22ac793e4f1d03ab361f9339e151195a6ced74088d0698be94a657
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Filesize
4.2MB
MD5c8c2a18d22504fe2dd51f78f8e9f6b8b
SHA17cf9949badd4e7bddde3963795c96fdcfcc1e422
SHA256255f1117b6fe42d40e432f76cde82df31b28226e1c82a11eb9a27b2e1c1d673e
SHA51209c767400975f3d23baf86051c4cac03d8c728a730e7df1a7417bb36868cc065bca8250b1e22ac793e4f1d03ab361f9339e151195a6ced74088d0698be94a657