Analysis
-
max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20250313-en -
resource tags
arch:x64arch:x86image:win10v2004-20250313-enlocale:en-usos:windows10-2004-x64system -
submitted
20/03/2025, 07:19
Behavioral task
behavioral1
Sample
2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
Resource
win10v2004-20250313-en
General
-
Target
2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
-
Size
9.1MB
-
MD5
fbb26757b5db69be0f26e658fb710398
-
SHA1
4c7087a61d860d49a96fd00fa8c618b0d5021e02
-
SHA256
7e7351bc58b00183dae43dd04e7fd450d526dbde964984b3e8f708761a30cd33
-
SHA512
e1add32897af2138b6809e1a3e3e6ef10bbddecaf37e584e4b67bd7e1dadca42e7d293234fe47e0d305df5f5280510328360d4ae073a927d4f9410b8e937f997
-
SSDEEP
98304:GHxMZDJ1TRpxYVX9u2IazANfAhZytTD5iqk:sxEvYjVzANIhwN
Malware Config
Signatures
-
Glupteba family
-
Glupteba payload 1 IoCs
resource yara_rule behavioral2/files/0x000b0000000241d7-127.dat family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4836 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 5888 csrss.exe 2288 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3446877943-4095308722-756223633-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\S-1-5-21-3446877943-4095308722-756223633-1000\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.
-
Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File 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 -
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 2025-03-20_fbb26757b5db69be0f26e658fb710398_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 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe File created C:\Windows\rss\csrss.exe 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe -
pid Process 3600 powershell.exe 1236 powershell.exe 4868 powershell.exe 5288 powershell.exe 3056 powershell.exe 5520 powershell.exe 2512 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 2025-03-20_fbb26757b5db69be0f26e658fb710398_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 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 2025-03-20_fbb26757b5db69be0f26e658fb710398_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 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,-12 = "Azores Standard Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_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,-741 = "New Zealand Daylight Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_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,-2772 = "Omsk Standard Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_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,-382 = "South Africa Standard Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_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,-1412 = "Syria Standard Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_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,-691 = "Tasmania Daylight Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed 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\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_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,-241 = "Samoa Daylight Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_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,-602 = "Taipei Standard Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_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,-392 = "Arab Standard Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_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,-2041 = "Eastern Daylight Time (Mexico)" 2025-03-20_fbb26757b5db69be0f26e658fb710398_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,-542 = "Myanmar Standard Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_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\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,-2871 = "Magallanes Daylight Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates 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,-2161 = "Altai Daylight Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_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,-532 = "Sri Lanka Standard Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_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\Microsoft\SystemCertificates\Root 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,-342 = "Egypt Standard Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_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,-1841 = "Russia TZ 4 Daylight Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_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,-561 = "SE Asia Daylight Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_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\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates 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\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_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,-361 = "GTB Daylight Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_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,-2342 = "Haiti Standard Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_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,-832 = "SA Eastern Standard Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.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\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_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,-562 = "SE Asia Standard Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_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\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_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,-1892 = "Russia TZ 3 Standard Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_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,-752 = "Tonga Standard Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_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,-2181 = "Astrakhan Daylight Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_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,-372 = "Jerusalem Standard Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_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,-981 = "Kamchatka Daylight Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_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" 2025-03-20_fbb26757b5db69be0f26e658fb710398_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\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.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 Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs 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 6072 schtasks.exe 5024 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1236 powershell.exe 1236 powershell.exe 2664 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 2664 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4868 powershell.exe 4868 powershell.exe 4860 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4860 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4860 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4860 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4860 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4860 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4860 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4860 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4860 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4860 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 5288 powershell.exe 5288 powershell.exe 3056 powershell.exe 3056 powershell.exe 5520 powershell.exe 5520 powershell.exe 2512 powershell.exe 2512 powershell.exe 3600 powershell.exe 3600 powershell.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 5888 csrss.exe 2288 injector.exe 5888 csrss.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 5888 csrss.exe 5888 csrss.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe 2288 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 1236 powershell.exe Token: SeDebugPrivilege 2664 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Token: SeImpersonatePrivilege 2664 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Token: SeDebugPrivilege 4868 powershell.exe Token: SeDebugPrivilege 5288 powershell.exe Token: SeDebugPrivilege 3056 powershell.exe Token: SeDebugPrivilege 5520 powershell.exe Token: SeDebugPrivilege 2512 powershell.exe Token: SeDebugPrivilege 3600 powershell.exe Token: SeSystemEnvironmentPrivilege 5888 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2664 wrote to memory of 1236 2664 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 89 PID 2664 wrote to memory of 1236 2664 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 89 PID 2664 wrote to memory of 1236 2664 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 89 PID 4860 wrote to memory of 4868 4860 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 94 PID 4860 wrote to memory of 4868 4860 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 94 PID 4860 wrote to memory of 4868 4860 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 94 PID 4860 wrote to memory of 5276 4860 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 96 PID 4860 wrote to memory of 5276 4860 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 96 PID 5276 wrote to memory of 4836 5276 cmd.exe 98 PID 5276 wrote to memory of 4836 5276 cmd.exe 98 PID 4860 wrote to memory of 5288 4860 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 99 PID 4860 wrote to memory of 5288 4860 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 99 PID 4860 wrote to memory of 5288 4860 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 99 PID 4860 wrote to memory of 3056 4860 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 101 PID 4860 wrote to memory of 3056 4860 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 101 PID 4860 wrote to memory of 3056 4860 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 101 PID 4860 wrote to memory of 5888 4860 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 103 PID 4860 wrote to memory of 5888 4860 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 103 PID 4860 wrote to memory of 5888 4860 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 103 PID 5888 wrote to memory of 5520 5888 csrss.exe 104 PID 5888 wrote to memory of 5520 5888 csrss.exe 104 PID 5888 wrote to memory of 5520 5888 csrss.exe 104 PID 5888 wrote to memory of 2512 5888 csrss.exe 110 PID 5888 wrote to memory of 2512 5888 csrss.exe 110 PID 5888 wrote to memory of 2512 5888 csrss.exe 110 PID 5888 wrote to memory of 3600 5888 csrss.exe 112 PID 5888 wrote to memory of 3600 5888 csrss.exe 112 PID 5888 wrote to memory of 3600 5888 csrss.exe 112 PID 5888 wrote to memory of 2288 5888 csrss.exe 114 PID 5888 wrote to memory of 2288 5888 csrss.exe 114 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Users\Admin\AppData\Local\Temp\2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe"C:\Users\Admin\AppData\Local\Temp\2025-03-20_fbb26757b5db69be0f26e658fb710398_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:2664 -
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:1236
-
-
C:\Users\Admin\AppData\Local\Temp\2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe"C:\Users\Admin\AppData\Local\Temp\2025-03-20_fbb26757b5db69be0f26e658fb710398_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:4860 -
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:4868
-
-
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:5276 -
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:4836
-
-
-
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:5288
-
-
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:3056
-
-
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:5888 -
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:5520
-
-
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:6072
-
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2136
-
-
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:2512
-
-
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:3600
-
-
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:2288
-
-
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:5024
-
-
-
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
Loading Replay Monitor...
Downloads
-
Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
-
Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57ac1876afc62487d26ac7c3d255ecaa8
SHA1050aa71ad2759fb1629dd2b03edcf0c5ea268e65
SHA25629b2320a1edd045ee03cc3483280972efcd7391fd1f0fb72483608b11decc94a
SHA512a48750d311b69d3f5550dc2f1b422bd4a04f26c5758c7408770ae4737d3d229c0f437bb95f240b482df1128eea347b4cf35b7a480c22e1338d6a0f8ac7903b97
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56b1d52689f319ca7a2d98a35afd90774
SHA13af0746151088b2ca411835ab8b5d4ac3eccc7aa
SHA2562c6b62a8b3350cab03c781afacf1a054ae8c08439a7f9131795539201e18c45d
SHA5127141067289b52098ab7ecf3661f85ac6d61e8df92ad3c1457eefad9ba4b9fc8d81986789e03ea485783ae364cd43ff97d332e2d339322bf0fb38a8eb36568e78
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b7cc156790387e1eaaade10d397843c1
SHA1e22fdd92ee56d62f801c144f0a4311c82000b939
SHA25636ccef3fa09dd98936b2ffcc4f0800b0c7d7e3a69c1084eedab23ce2b4d0cd76
SHA51261cd5e0e9ffe13a957d909cc2175810938172d4b476791450e6cef8afa0067dc7d567d5619d58eff95ad7b552bbc06f68ed8d06b11f15c9d842bb93dac395ec9
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a0cca14eb6cdfeea8a69ecc2cbbda8be
SHA16ede90957d1533355d7dc4d13294b8d04bbcdbcf
SHA256779e2ee460a63d5b9b039f0939641bdb4ff5f1bd89b199b5e9e163d9fc05b543
SHA5120b2e09a873b309059cbf0efa6653e4556328ba0fd1a1b12566bb521df19953e2a22d239d7ae7172ff4ccb121b56fe780efc16b57c8759e82bf1cc8b5c17c851c
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a11c5069210bfb1c7b4e8323a8097644
SHA1043c6b519dce4a3a8e4bbc41ed045eaab74ea2df
SHA2560507d29a6876b4ddb41ca40ac1ec1a9115888f0e944e49b181979c1eb4caf234
SHA512f1a15ad2495ea7f6e09efe2fa229d8315d33bae7f7951d63c84d01eb4c6a56b12fa785f5114074e8f544239699990aa4b09a536e258a129699a95956f438ebfa
-
Filesize
9.1MB
MD5fbb26757b5db69be0f26e658fb710398
SHA14c7087a61d860d49a96fd00fa8c618b0d5021e02
SHA2567e7351bc58b00183dae43dd04e7fd450d526dbde964984b3e8f708761a30cd33
SHA512e1add32897af2138b6809e1a3e3e6ef10bbddecaf37e584e4b67bd7e1dadca42e7d293234fe47e0d305df5f5280510328360d4ae073a927d4f9410b8e937f997