Analysis
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max time kernel
150s -
max time network
142s -
platform
windows10-2004_x64 -
resource
win10v2004-20250314-en -
resource tags
arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system -
submitted
20/03/2025, 07:26
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
win10v2004-20250314-en
General
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Target
2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
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Size
9.1MB
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MD5
fbb26757b5db69be0f26e658fb710398
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SHA1
4c7087a61d860d49a96fd00fa8c618b0d5021e02
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SHA256
7e7351bc58b00183dae43dd04e7fd450d526dbde964984b3e8f708761a30cd33
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SHA512
e1add32897af2138b6809e1a3e3e6ef10bbddecaf37e584e4b67bd7e1dadca42e7d293234fe47e0d305df5f5280510328360d4ae073a927d4f9410b8e937f997
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SSDEEP
98304:GHxMZDJ1TRpxYVX9u2IazANfAhZytTD5iqk:sxEvYjVzANIhwN
Malware Config
Signatures
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Glupteba family
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Glupteba payload 1 IoCs
resource yara_rule behavioral2/files/0x000b000000024131-128.dat family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4392 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 1224 csrss.exe 1920 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\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-1-5-21-805952410-2104024357-1716932545-1000\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 2025-03-20_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 2228 powershell.exe 2600 powershell.exe 3240 powershell.exe 408 powershell.exe 228 powershell.exe 3000 powershell.exe 640 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 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 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 csrss.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,-401 = "Arabic 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,-242 = "Samoa 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,-201 = "US Mountain Daylight Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. 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,-2061 = "North Korea Daylight Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.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 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" 2025-03-20_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,-1721 = "Libya 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,-1871 = "Russia TZ 7 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,-3051 = "Qyzylorda Daylight Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.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,-252 = "Dateline 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,-261 = "GMT 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\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs 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\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs 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,-2321 = "Sakhalin Daylight Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland 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,-272 = "Greenwich 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,-892 = "Morocco Standard Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern 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,-1801 = "Line Islands 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 (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.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,-3141 = "South Sudan Daylight Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 2025-03-20_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,-591 = "Malay Peninsula 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\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe 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,-541 = "Myanmar 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,-2451 = "Saint Pierre Daylight Time" 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.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 5012 schtasks.exe 3012 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 408 powershell.exe 408 powershell.exe 5028 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 5028 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 228 powershell.exe 228 powershell.exe 4812 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4812 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4812 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4812 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4812 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4812 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4812 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4812 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4812 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4812 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 3000 powershell.exe 3000 powershell.exe 640 powershell.exe 640 powershell.exe 2228 powershell.exe 2228 powershell.exe 2600 powershell.exe 2600 powershell.exe 3240 powershell.exe 3240 powershell.exe 1920 injector.exe 1920 injector.exe 1920 injector.exe 1920 injector.exe 1920 injector.exe 1920 injector.exe 1224 csrss.exe 1224 csrss.exe 1920 injector.exe 1920 injector.exe 1920 injector.exe 1920 injector.exe 1920 injector.exe 1920 injector.exe 1224 csrss.exe 1224 csrss.exe 1920 injector.exe 1920 injector.exe 1920 injector.exe 1920 injector.exe 1920 injector.exe 1920 injector.exe 1920 injector.exe 1920 injector.exe 1920 injector.exe 1920 injector.exe 1920 injector.exe 1920 injector.exe 1920 injector.exe 1920 injector.exe 1920 injector.exe 1920 injector.exe 1920 injector.exe 1920 injector.exe 1920 injector.exe 1920 injector.exe 1920 injector.exe 1920 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 408 powershell.exe Token: SeDebugPrivilege 5028 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Token: SeImpersonatePrivilege 5028 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Token: SeDebugPrivilege 228 powershell.exe Token: SeDebugPrivilege 3000 powershell.exe Token: SeDebugPrivilege 640 powershell.exe Token: SeDebugPrivilege 2228 powershell.exe Token: SeDebugPrivilege 2600 powershell.exe Token: SeDebugPrivilege 3240 powershell.exe Token: SeSystemEnvironmentPrivilege 1224 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 5028 wrote to memory of 408 5028 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 89 PID 5028 wrote to memory of 408 5028 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 89 PID 5028 wrote to memory of 408 5028 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 89 PID 4812 wrote to memory of 228 4812 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 94 PID 4812 wrote to memory of 228 4812 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 94 PID 4812 wrote to memory of 228 4812 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 94 PID 4812 wrote to memory of 2604 4812 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 96 PID 4812 wrote to memory of 2604 4812 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 96 PID 2604 wrote to memory of 4392 2604 cmd.exe 98 PID 2604 wrote to memory of 4392 2604 cmd.exe 98 PID 4812 wrote to memory of 3000 4812 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 99 PID 4812 wrote to memory of 3000 4812 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 99 PID 4812 wrote to memory of 3000 4812 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 99 PID 4812 wrote to memory of 640 4812 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 101 PID 4812 wrote to memory of 640 4812 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 101 PID 4812 wrote to memory of 640 4812 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 101 PID 4812 wrote to memory of 1224 4812 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 103 PID 4812 wrote to memory of 1224 4812 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 103 PID 4812 wrote to memory of 1224 4812 2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 103 PID 1224 wrote to memory of 2228 1224 csrss.exe 104 PID 1224 wrote to memory of 2228 1224 csrss.exe 104 PID 1224 wrote to memory of 2228 1224 csrss.exe 104 PID 1224 wrote to memory of 2600 1224 csrss.exe 110 PID 1224 wrote to memory of 2600 1224 csrss.exe 110 PID 1224 wrote to memory of 2600 1224 csrss.exe 110 PID 1224 wrote to memory of 3240 1224 csrss.exe 112 PID 1224 wrote to memory of 3240 1224 csrss.exe 112 PID 1224 wrote to memory of 3240 1224 csrss.exe 112 PID 1224 wrote to memory of 1920 1224 csrss.exe 114 PID 1224 wrote to memory of 1920 1224 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
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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:5028 -
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:408
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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:4812 -
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:228
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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:2604 -
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:4392
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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:3000
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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:640
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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:1224 -
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:2228
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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:5012
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2016
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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:2600
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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:3240
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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:1920
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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:3012
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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
MD5faabef9e9de040daf0afdbf1ae7cd86f
SHA1d50945ae87f5ab107200b142b00298982bc83332
SHA2563b53f2aaf0ad78f5ee58a1006ae6133431fea19ba86431b31ca86d38c09f78d6
SHA51290330722ceff1add0b37081293acd7142efc3fc518d77eb628a92951b0d8c9497f1490982f550a24f88d5dab51ab649cf6a692e21be069ded74012b7081296e0
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54c67b2a86f7a9526872e469aa748144a
SHA1c2e70c13b6c9fe5011db9835f9aead66f07db663
SHA2563c77acf05d63ef88263e7c8e822575373d538d184f3fcd9b414fac6e06b9cbec
SHA512672ac76be6e1c5cc87eeb915529405bee6cf2e879908b556be80686442cde44efd9026a8ac7db5d723453c7103c47c604ac856fd8a1572554cf04510f4b36aac
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5de7ef46872860ea1abd66f07a4cd6474
SHA187f9fd59a1c9c4d081519b5e47e3e3b6ee200d31
SHA2564a5608bc1b7d40ab75cdccfce883a73804918c80059368090245424629af88f5
SHA512fda73196e988a252688d1fd482847148e9dbe45dc36bd02d8a1ebae82dc0b23b98181acce76312294e612e204c2f85d2701f0dded0e4961e28e706e2d5e872d7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51d1bd3dcde79342c46dbfeeaf85234b4
SHA1677b80829c7665cec38d219a5a96b70b7bf49a75
SHA25670dc6f472fb6e6c1884998b862440d1cb20a45f9b5544c4f0935491220c8b9bb
SHA51262b6234fcff9324dfed591fc58c6d85b178e804b266efacab1f5c52c242f939e884a6c03bcb19494c541c251ef8df32a7638b9088d7cb082a081aba49cd8cb8c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5912325206f79abdb84b6f6310e29209b
SHA1cfe413f7b84e649d9d8910ac37787eabb8d0e46a
SHA2560b23ef1f32c64a04d934c7c5575a146f9989a63cbd6c1691532490e211d9a329
SHA5128d2a76fa118853d26ac787c82eddeae6367be42ac9d307fb0bb9e0e203e46f4d789b0802664f9b9db6633350d06ca6f93c5475c3e078e3d08fb654929e9be3fa
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Filesize
9.1MB
MD5fbb26757b5db69be0f26e658fb710398
SHA14c7087a61d860d49a96fd00fa8c618b0d5021e02
SHA2567e7351bc58b00183dae43dd04e7fd450d526dbde964984b3e8f708761a30cd33
SHA512e1add32897af2138b6809e1a3e3e6ef10bbddecaf37e584e4b67bd7e1dadca42e7d293234fe47e0d305df5f5280510328360d4ae073a927d4f9410b8e937f997