Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20250314-en -
resource tags
arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system -
submitted
26/03/2025, 17:38
Behavioral task
behavioral1
Sample
2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
Resource
win10v2004-20250314-en
General
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Target
2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
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Size
9.1MB
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MD5
8231f7bd4463f9bd845c7b5e914c6bab
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SHA1
81e18ad03797d25a3b62d6b77e629c9d20423d5d
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SHA256
f3e9aa98315b595e90cc2a55ee9b0a337a6b676c0319ae5b214464f92b76f3ef
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SHA512
47a3d89ce76dc6c62333d2cfa43a453882439295e6b9fb7734fcf741513c4708f487ab1b6af30f239336c17baaa2a32725945a37f7eeb1e1526f1ae174306f54
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SSDEEP
98304:GHxMZDJ1TRpxYVX9u2IazANf6hZytTD5iq6r:sxEvYjVzANihwN8
Malware Config
Signatures
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Glupteba family
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Glupteba payload 1 IoCs
resource yara_rule behavioral2/files/0x0009000000024221-128.dat family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1176 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 4372 csrss.exe 4744 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1062200478-553497403-3857448183-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\S-1-5-21-1062200478-553497403-3857448183-1000\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\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 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 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_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 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe File created C:\Windows\rss\csrss.exe 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe -
pid Process 1764 powershell.exe 3412 powershell.exe 4180 powershell.exe 5500 powershell.exe 4788 powershell.exe 1520 powershell.exe 1920 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 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 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_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 csrss.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,-182 = "Mountain Standard Time (Mexico)" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_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,-831 = "SA Eastern Daylight Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_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,-2142 = "Transbaikal Standard Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_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\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_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,-1871 = "Russia TZ 7 Daylight Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_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,-214 = "Pacific Daylight Time (Mexico)" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_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,-2941 = "Sao Tome Daylight Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_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,-335 = "Jordan Standard Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.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\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_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,-52 = "Greenland Standard Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_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,-1502 = "Turkey Standard Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_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,-652 = "AUS Central Standard Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_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,-2002 = "Cabo Verde Standard Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.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,-542 = "Myanmar Standard Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.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\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_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,-891 = "Morocco Daylight Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_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,-292 = "Central European Standard Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\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,-2531 = "Chatham Islands Daylight Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed 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,-2392 = "Aleutian Standard Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 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\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_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,-662 = "Cen. Australia Standard Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_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,-384 = "Namibia Daylight Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_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,-131 = "US Eastern Daylight Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.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\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\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 5920 schtasks.exe 3700 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 5500 powershell.exe 5500 powershell.exe 3280 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 3280 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4788 powershell.exe 4788 powershell.exe 4788 powershell.exe 2760 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 2760 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 2760 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 2760 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 2760 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 2760 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 2760 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 2760 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 2760 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 2760 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 1520 powershell.exe 1520 powershell.exe 1520 powershell.exe 1920 powershell.exe 1920 powershell.exe 1920 powershell.exe 1764 powershell.exe 1764 powershell.exe 3412 powershell.exe 3412 powershell.exe 4180 powershell.exe 4180 powershell.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4372 csrss.exe 4372 csrss.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4372 csrss.exe 4372 csrss.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 5500 powershell.exe Token: SeDebugPrivilege 3280 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Token: SeImpersonatePrivilege 3280 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Token: SeDebugPrivilege 4788 powershell.exe Token: SeDebugPrivilege 1520 powershell.exe Token: SeDebugPrivilege 1920 powershell.exe Token: SeDebugPrivilege 1764 powershell.exe Token: SeDebugPrivilege 3412 powershell.exe Token: SeDebugPrivilege 4180 powershell.exe Token: SeSystemEnvironmentPrivilege 4372 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 3280 wrote to memory of 5500 3280 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 90 PID 3280 wrote to memory of 5500 3280 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 90 PID 3280 wrote to memory of 5500 3280 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 90 PID 2760 wrote to memory of 4788 2760 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 99 PID 2760 wrote to memory of 4788 2760 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 99 PID 2760 wrote to memory of 4788 2760 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 99 PID 2760 wrote to memory of 5164 2760 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 102 PID 2760 wrote to memory of 5164 2760 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 102 PID 5164 wrote to memory of 1176 5164 cmd.exe 104 PID 5164 wrote to memory of 1176 5164 cmd.exe 104 PID 2760 wrote to memory of 1520 2760 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 105 PID 2760 wrote to memory of 1520 2760 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 105 PID 2760 wrote to memory of 1520 2760 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 105 PID 2760 wrote to memory of 1920 2760 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 108 PID 2760 wrote to memory of 1920 2760 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 108 PID 2760 wrote to memory of 1920 2760 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 108 PID 2760 wrote to memory of 4372 2760 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 110 PID 2760 wrote to memory of 4372 2760 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 110 PID 2760 wrote to memory of 4372 2760 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 110 PID 4372 wrote to memory of 1764 4372 csrss.exe 111 PID 4372 wrote to memory of 1764 4372 csrss.exe 111 PID 4372 wrote to memory of 1764 4372 csrss.exe 111 PID 4372 wrote to memory of 3412 4372 csrss.exe 116 PID 4372 wrote to memory of 3412 4372 csrss.exe 116 PID 4372 wrote to memory of 3412 4372 csrss.exe 116 PID 4372 wrote to memory of 4180 4372 csrss.exe 119 PID 4372 wrote to memory of 4180 4372 csrss.exe 119 PID 4372 wrote to memory of 4180 4372 csrss.exe 119 PID 4372 wrote to memory of 4744 4372 csrss.exe 121 PID 4372 wrote to memory of 4744 4372 csrss.exe 121 -
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\2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe"C:\Users\Admin\AppData\Local\Temp\2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_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:3280 -
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:5500
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C:\Users\Admin\AppData\Local\Temp\2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe"C:\Users\Admin\AppData\Local\Temp\2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_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:2760 -
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:4788
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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:5164 -
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:1176
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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:1520
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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:1920
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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:4372 -
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:1764
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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:5920
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1948
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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:3412
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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:4180
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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:4744
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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:3700
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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
MD50a80c64e6823c3592174d550e63c5d2f
SHA1abc9398441db8f73292907bdd83ed667a052fbf5
SHA256db62d7384c235fff44b00be7d1ea15e804be7720bb90ac79ae21b6fb60fdcdc9
SHA5125aafdd5794075781eed54ea521d59bd88065e5b0ad147c3be86a28d08db1a09fd4ce271580906ab1460a8c8f0d28cc5f86d04846f92ad074dbb45de889041915
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c3b445e2f9ad2a02059ad61f8cc77839
SHA13ce45b97b11e723a0bd700830a4358151aba57c2
SHA25645b4bc18510c70070eb95fc28bda330bee17eed3a7d1f0adf9ac2d61114da35d
SHA5128304e3b71f98e0758b21a23645c8977cb78d5d7b3c04b22e3d1d089f2275d5ae4707d28e1f409deaf904bb21f05730fdb84a047de98b5f5992096c09a2bcd1f9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53c1260e82fe47a934a7f65b246c5e8d1
SHA12d75a200304ee9c82fd57cc3c9ce279afa1b948d
SHA256fb3d5ebc82ca5d5d872576a52d9858e3f185a6b5e27d968b41086bb640ce31ba
SHA51281bedaa28665fa9ca465381ccf45ac36e03d947e8586b77d5bb705b84640fd5647037847edcdcdca34c45a0bc5be0caca8a7d91536fe4fb42ab9adc903d25108
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57aabafc99cd5245bacb0901ded72da74
SHA1b57e6e38c88291b3464d8075262797d6df068f34
SHA2566526b1074c22ac914e257d7f293db922f572b941a66b4b6c0923494c71878179
SHA51216fb7d49977c287cb76a4ca84c6741372d3e0e8cffa1b6cf012fb31f7d286a6cff882d661b30d2e8640f6b78bfeea027655d61d71b6ff5a39ca84c08e77b233a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5080a7fa9d3fb8aad86d45ab7b0cf83a9
SHA1e0fa38cc4b760dc9c1c40b02f7003ad699c7d73d
SHA2569c893441e53a76af162874f86dcb26e6f0d02ed51bd4fc23e3584d12ac0df3bd
SHA512c1538fe8935629b54f493b3304a3806c932074bc6954a3f2d5f0bb535d7762bda8df54f419e779bf630bae0ac3ab510a565cac1a1bcc58b7062799fa69198941
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Filesize
9.1MB
MD58231f7bd4463f9bd845c7b5e914c6bab
SHA181e18ad03797d25a3b62d6b77e629c9d20423d5d
SHA256f3e9aa98315b595e90cc2a55ee9b0a337a6b676c0319ae5b214464f92b76f3ef
SHA51247a3d89ce76dc6c62333d2cfa43a453882439295e6b9fb7734fcf741513c4708f487ab1b6af30f239336c17baaa2a32725945a37f7eeb1e1526f1ae174306f54