Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20250314-en -
resource tags
arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system -
submitted
18/03/2025, 03:53
Behavioral task
behavioral1
Sample
2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
Resource
win10v2004-20250314-en
General
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Target
2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
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Size
9.1MB
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MD5
be0b87dfe646120b5b81eefcac6e230b
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SHA1
fa624a9cd8475e57771f9883f756c1f786156b82
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SHA256
1e4c64e66d954e64ae7e3c639d851f88cdda2e81b43dff26ca7fde158a54def3
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SHA512
aed828dfae4324843cbc0696533838aa9f99fb511450181dfc96b6147e117874fdd491aeea1a4387a2a60494a2accefd0408c2dceba878df7cbc95d0be8695b1
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SSDEEP
98304:GHxMZDJ1TRpxYVX9u2IazANfKhZytTD5iqUh:sxEvYjVzANyhwNA
Malware Config
Signatures
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Glupteba family
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Glupteba payload 1 IoCs
resource yara_rule behavioral2/files/0x000b000000024276-128.dat family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 5684 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 5896 csrss.exe 5172 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\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 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 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 -
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 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\rss 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe File created C:\Windows\rss\csrss.exe 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe -
pid Process 3048 powershell.exe 4600 powershell.exe 4164 powershell.exe 2892 powershell.exe 6080 powershell.exe 3800 powershell.exe 5516 powershell.exe -
Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs
Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe -
System Location Discovery: System Language Discovery 1 TTPs 10 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language csrss.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs 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\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.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\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs 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\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 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\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\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\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs 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\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA 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\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 5388 schtasks.exe 5820 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3048 powershell.exe 3048 powershell.exe 2848 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 2848 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4600 powershell.exe 4600 powershell.exe 4388 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4388 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4388 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4388 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4388 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4388 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4388 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4388 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4388 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4388 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4164 powershell.exe 4164 powershell.exe 2892 powershell.exe 2892 powershell.exe 6080 powershell.exe 6080 powershell.exe 3800 powershell.exe 3800 powershell.exe 5516 powershell.exe 5516 powershell.exe 5172 injector.exe 5172 injector.exe 5172 injector.exe 5172 injector.exe 5172 injector.exe 5172 injector.exe 5896 csrss.exe 5896 csrss.exe 5172 injector.exe 5172 injector.exe 5172 injector.exe 5172 injector.exe 5172 injector.exe 5172 injector.exe 5896 csrss.exe 5896 csrss.exe 5172 injector.exe 5172 injector.exe 5172 injector.exe 5172 injector.exe 5172 injector.exe 5172 injector.exe 5172 injector.exe 5172 injector.exe 5172 injector.exe 5172 injector.exe 5172 injector.exe 5172 injector.exe 5172 injector.exe 5172 injector.exe 5172 injector.exe 5172 injector.exe 5172 injector.exe 5172 injector.exe 5172 injector.exe 5172 injector.exe 5172 injector.exe 5172 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 3048 powershell.exe Token: SeDebugPrivilege 2848 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Token: SeImpersonatePrivilege 2848 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Token: SeDebugPrivilege 4600 powershell.exe Token: SeDebugPrivilege 4164 powershell.exe Token: SeDebugPrivilege 2892 powershell.exe Token: SeDebugPrivilege 6080 powershell.exe Token: SeDebugPrivilege 3800 powershell.exe Token: SeDebugPrivilege 5516 powershell.exe Token: SeSystemEnvironmentPrivilege 5896 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2848 wrote to memory of 3048 2848 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 88 PID 2848 wrote to memory of 3048 2848 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 88 PID 2848 wrote to memory of 3048 2848 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 88 PID 4388 wrote to memory of 4600 4388 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 93 PID 4388 wrote to memory of 4600 4388 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 93 PID 4388 wrote to memory of 4600 4388 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 93 PID 4388 wrote to memory of 4740 4388 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 95 PID 4388 wrote to memory of 4740 4388 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 95 PID 4740 wrote to memory of 5684 4740 cmd.exe 97 PID 4740 wrote to memory of 5684 4740 cmd.exe 97 PID 4388 wrote to memory of 4164 4388 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 98 PID 4388 wrote to memory of 4164 4388 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 98 PID 4388 wrote to memory of 4164 4388 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 98 PID 4388 wrote to memory of 2892 4388 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 100 PID 4388 wrote to memory of 2892 4388 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 100 PID 4388 wrote to memory of 2892 4388 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 100 PID 4388 wrote to memory of 5896 4388 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 102 PID 4388 wrote to memory of 5896 4388 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 102 PID 4388 wrote to memory of 5896 4388 2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 102 PID 5896 wrote to memory of 6080 5896 csrss.exe 103 PID 5896 wrote to memory of 6080 5896 csrss.exe 103 PID 5896 wrote to memory of 6080 5896 csrss.exe 103 PID 5896 wrote to memory of 3800 5896 csrss.exe 108 PID 5896 wrote to memory of 3800 5896 csrss.exe 108 PID 5896 wrote to memory of 3800 5896 csrss.exe 108 PID 5896 wrote to memory of 5516 5896 csrss.exe 111 PID 5896 wrote to memory of 5516 5896 csrss.exe 111 PID 5896 wrote to memory of 5516 5896 csrss.exe 111 PID 5896 wrote to memory of 5172 5896 csrss.exe 113 PID 5896 wrote to memory of 5172 5896 csrss.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\2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe"C:\Users\Admin\AppData\Local\Temp\2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2848 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3048
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C:\Users\Admin\AppData\Local\Temp\2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe"C:\Users\Admin\AppData\Local\Temp\2025-03-18_be0b87dfe646120b5b81eefcac6e230b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe"2⤵
- Adds Run key to start application
- Checks for VirtualBox DLLs, possible anti-VM trick
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4388 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4600
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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:4740 -
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
- Event Triggered Execution: Netsh Helper DLL
PID:5684
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4164
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2892
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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.
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5896 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:6080
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Scheduled Task/Job: Scheduled Task
PID:5820
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3656
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3800
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5516
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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:5172
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Scheduled Task/Job: Scheduled Task
PID:5388
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Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d65ec39a00ee8a6cc2334e9b3943e5cd
SHA152abce0974b3fd0d5b5e0d49704d3335c61d0514
SHA256eb5a342a99bda19af186afdef4922da2e5f809fb909ca0245558361d5a94ef86
SHA51287616885d4215ae447cc1e44a5a4a71cd0eab296814cc5a109920bf79d14b25fa855d4df0f86dcacdb18f02f5c83552025478d17f0d87b5114bed549b23480c9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50ddfd0c0f22bb74f58e1d1e8e5646def
SHA1e4cae8b9657171b606e9e943cb84416c8cb79b8a
SHA256e6e1ebc3a018cbb9afd125e6e705e26dc3e251d68648c8911f370b542f72b94c
SHA5123627b72ebd89661789c42d16c4880a377151032efc5492436934a174acc9fd90f6d5ea705caaa23d039da964dc09dad4c5e76c904a0500476026c0432cd8cbef
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57f116ed80537c16b73c650f33a19d389
SHA154490718bbe33c1d65e0c9f9676a60c365f1d72c
SHA25616f4a552859ed84fc36863721193e3af9a9a85f457113d1c482f3e743cd7730c
SHA51225b0f7b3a1bca067c6d628b8be6f16dd84a292701b373f11dbeabae016fd45b75934f245ae61ea294ed0df0c9d4640cd70721d95e31381bcd7c1f202c69c2fd2
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58c5768bae7cdd490df2867c3c662dc35
SHA11eaf21bd0adb93f7d1fcf6a7535c62608213dd07
SHA256e32a2c1165726aabd63143c423a5b2260d705fc18a032b647eb910c36ad92086
SHA51244256064dfc1b8b0eac1cea28b2bff812ccd0877e78da1d442d9f5ce06f729269862bc5c54998617a3dc5062854741488014070f1d4ad61a1917ff30ea05f1a0
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5486d7c64d428eeaed8451299b7ea9c59
SHA11dc34b2ca59a0f1ca021b9825475bbe06e1ea316
SHA256cd98be1d0c3ef67a52ed85ea093478a9825d0c06af1e07dbbfbb6d272498211d
SHA5125594f05f824824219e50369eb6b695844f371b31211b1739e01386158cec46aaed9c8ad26395005ed94759bb73dfc51b89c31e1f94c3fb87ae26943471fc21b8
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Filesize
9.1MB
MD5be0b87dfe646120b5b81eefcac6e230b
SHA1fa624a9cd8475e57771f9883f756c1f786156b82
SHA2561e4c64e66d954e64ae7e3c639d851f88cdda2e81b43dff26ca7fde158a54def3
SHA512aed828dfae4324843cbc0696533838aa9f99fb511450181dfc96b6147e117874fdd491aeea1a4387a2a60494a2accefd0408c2dceba878df7cbc95d0be8695b1