Analysis
-
max time kernel
150s -
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
26/03/2025, 17:53
Behavioral task
behavioral1
Sample
2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
Resource
win7-20241023-en
Behavioral task
behavioral2
Sample
2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
Resource
win10v2004-20250314-en
General
-
Target
2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
-
Size
9.1MB
-
MD5
8231f7bd4463f9bd845c7b5e914c6bab
-
SHA1
81e18ad03797d25a3b62d6b77e629c9d20423d5d
-
SHA256
f3e9aa98315b595e90cc2a55ee9b0a337a6b676c0319ae5b214464f92b76f3ef
-
SHA512
47a3d89ce76dc6c62333d2cfa43a453882439295e6b9fb7734fcf741513c4708f487ab1b6af30f239336c17baaa2a32725945a37f7eeb1e1526f1ae174306f54
-
SSDEEP
98304:GHxMZDJ1TRpxYVX9u2IazANf6hZytTD5iq6r:sxEvYjVzANihwN8
Malware Config
Signatures
-
Glupteba family
-
Glupteba payload 1 IoCs
resource yara_rule behavioral2/files/0x0009000000024311-126.dat family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 528 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 6068 csrss.exe 4712 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-308834014-1004923324-1191300197-1000\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-1-5-21-308834014-1004923324-1191300197-1000\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 opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe 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 4252 powershell.exe 4384 powershell.exe 5728 powershell.exe 3368 powershell.exe 3944 powershell.exe 3936 powershell.exe 3788 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 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 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 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,-492 = "India 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,-501 = "Nepal 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,-3051 = "Qyzylorda 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,-242 = "Samoa 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\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates 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\AutoDetect = "0" 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,-12 = "Azores 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,-2412 = "Marquesas Standard Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_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,-571 = "China 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,-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,-542 = "Myanmar 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,-562 = "SE Asia Standard Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed 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,-112 = "Eastern 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,-2632 = "Norfolk 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,-561 = "SE Asia 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\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan 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,-2162 = "Altai 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,-722 = "Central Pacific 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,-792 = "SA Western 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,-1041 = "Ulaanbaatar Daylight Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.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,-2041 = "Eastern 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,-541 = "Myanmar 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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk 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,-122 = "SA Pacific Standard Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_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\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East 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,-2322 = "Sakhalin Standard Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB 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,-2452 = "Saint Pierre 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\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia 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,-202 = "US Mountain Standard Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_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\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian 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,-2042 = "Eastern 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,-981 = "Kamchatka 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,-631 = "Tokyo Daylight Time" 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates 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 3040 schtasks.exe 1104 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4384 powershell.exe 4384 powershell.exe 5088 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 5088 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 5728 powershell.exe 5728 powershell.exe 2044 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 2044 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 2044 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 2044 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 2044 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 2044 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 2044 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 2044 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 2044 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 2044 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 3368 powershell.exe 3368 powershell.exe 3944 powershell.exe 3944 powershell.exe 3944 powershell.exe 3936 powershell.exe 3936 powershell.exe 3788 powershell.exe 3788 powershell.exe 4252 powershell.exe 4252 powershell.exe 4712 injector.exe 4712 injector.exe 4712 injector.exe 4712 injector.exe 4712 injector.exe 4712 injector.exe 6068 csrss.exe 6068 csrss.exe 4712 injector.exe 4712 injector.exe 4712 injector.exe 4712 injector.exe 4712 injector.exe 4712 injector.exe 6068 csrss.exe 6068 csrss.exe 4712 injector.exe 4712 injector.exe 4712 injector.exe 4712 injector.exe 4712 injector.exe 4712 injector.exe 4712 injector.exe 4712 injector.exe 4712 injector.exe 4712 injector.exe 4712 injector.exe 4712 injector.exe 4712 injector.exe 4712 injector.exe 4712 injector.exe 4712 injector.exe 4712 injector.exe 4712 injector.exe 4712 injector.exe 4712 injector.exe 4712 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 4384 powershell.exe Token: SeDebugPrivilege 5088 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Token: SeImpersonatePrivilege 5088 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Token: SeDebugPrivilege 5728 powershell.exe Token: SeDebugPrivilege 3368 powershell.exe Token: SeDebugPrivilege 3944 powershell.exe Token: SeDebugPrivilege 3936 powershell.exe Token: SeDebugPrivilege 3788 powershell.exe Token: SeDebugPrivilege 4252 powershell.exe Token: SeSystemEnvironmentPrivilege 6068 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 5088 wrote to memory of 4384 5088 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 89 PID 5088 wrote to memory of 4384 5088 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 89 PID 5088 wrote to memory of 4384 5088 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 89 PID 2044 wrote to memory of 5728 2044 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 99 PID 2044 wrote to memory of 5728 2044 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 99 PID 2044 wrote to memory of 5728 2044 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 99 PID 2044 wrote to memory of 2204 2044 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 102 PID 2044 wrote to memory of 2204 2044 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 102 PID 2204 wrote to memory of 528 2204 cmd.exe 104 PID 2204 wrote to memory of 528 2204 cmd.exe 104 PID 2044 wrote to memory of 3368 2044 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 105 PID 2044 wrote to memory of 3368 2044 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 105 PID 2044 wrote to memory of 3368 2044 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 105 PID 2044 wrote to memory of 3944 2044 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 108 PID 2044 wrote to memory of 3944 2044 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 108 PID 2044 wrote to memory of 3944 2044 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 108 PID 2044 wrote to memory of 6068 2044 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 110 PID 2044 wrote to memory of 6068 2044 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 110 PID 2044 wrote to memory of 6068 2044 2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 110 PID 6068 wrote to memory of 3936 6068 csrss.exe 111 PID 6068 wrote to memory of 3936 6068 csrss.exe 111 PID 6068 wrote to memory of 3936 6068 csrss.exe 111 PID 6068 wrote to memory of 3788 6068 csrss.exe 116 PID 6068 wrote to memory of 3788 6068 csrss.exe 116 PID 6068 wrote to memory of 3788 6068 csrss.exe 116 PID 6068 wrote to memory of 4252 6068 csrss.exe 119 PID 6068 wrote to memory of 4252 6068 csrss.exe 119 PID 6068 wrote to memory of 4252 6068 csrss.exe 119 PID 6068 wrote to memory of 4712 6068 csrss.exe 121 PID 6068 wrote to memory of 4712 6068 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
-
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:5088 -
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:4384
-
-
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:2044 -
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:5728
-
-
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:2204 -
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:528
-
-
-
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:3368
-
-
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:3944
-
-
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:6068 -
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:3936
-
-
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:1104
-
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:964
-
-
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:3788
-
-
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:4252
-
-
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:4712
-
-
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:3040
-
-
-
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
MD564e63f0f7613af232739d225a8dd5dfa
SHA18646f47097692228f374823ac3ce94a1f5449422
SHA2566b9cc8e9cef4f8037cef89e928a835aeff8ef3c5bfe70b82065c817726152353
SHA51287fdd57519ca0a25596932fbee899a720ad2bd1bcd533785c3db48e6a5fb2ff6be65c21a30645f6697064899cb791a3b388068f860cde4a1d9adf09751ed76cd
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5594e0afb053a45a33f98a746a676482c
SHA1719b4fbf76e555fd1da24102824a24a201ca73b7
SHA256b3dc292e99b0897577495384964a385d30f321f1a819c177046ac0d10fec77e7
SHA512afb3df772816180388db5ca43ab275c6b1ad35f263fccb74484d4d23cde8a6dabaf77a4a3cee31ed6e7d5954dabcb31caeb827206a5e11f9b7c49724ca05eb46
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58696da9a97d3b2ec7f79ee17395986c0
SHA135944364ff71dbc1b3f7ee2856e5ca9700ab4214
SHA256590d7dc5df6a790a6bb1ba855cf2a5be0bc0cb3f6fabacfb5b8dc4875191fb28
SHA5125c75963df7273a38a64e875d3666dcf7895b408fc04b1d7ec5995effde0113f945348e78e876bfb5f3536273e36c5ed77d0ef5ac2d3d016364bbe96aed618d28
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d8296c9ecb3697505981240feca33fc9
SHA12afa7a0f2bf6fdf813dc582eaf169ce71391fb7e
SHA25672f6261ad85063f69d8fe08527806ab493f55d7929cc873067aa41c8a03e520b
SHA512bdd01002ec5e0de7a11d9885632e6d16cbd40949b3822bc18900ee957cb22c05cf53abfdbe98bd76acc4ddc2b1b0e2adaaa9a3a9bdd62f2afb7990523039a354
-
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51deac9a149de2a218e5e27e8487018a7
SHA1621ea397c64bf2dde480bfbb4b94742b3301653f
SHA256bc351c4fd049f37c2a298256be7feb5480f8630b2bd47e29fc0ffa3e21886bf3
SHA5122fa0e859c9a9da26035ff457fa23b894cbd2150891c744cf5ff231a85e130e50791895e7e2006342543575ed9e9d06ac76f2159312b25992e42468dce71e0fd1
-
Filesize
9.1MB
MD58231f7bd4463f9bd845c7b5e914c6bab
SHA181e18ad03797d25a3b62d6b77e629c9d20423d5d
SHA256f3e9aa98315b595e90cc2a55ee9b0a337a6b676c0319ae5b214464f92b76f3ef
SHA51247a3d89ce76dc6c62333d2cfa43a453882439295e6b9fb7734fcf741513c4708f487ab1b6af30f239336c17baaa2a32725945a37f7eeb1e1526f1ae174306f54