Analysis
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max time kernel
150s -
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
18/03/2025, 05:00
Behavioral task
behavioral1
Sample
2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
Resource
win7-20241023-en
Behavioral task
behavioral2
Sample
2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
Resource
win10v2004-20250313-en
General
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Target
2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
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Size
9.1MB
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MD5
e723ac0c86ba48c4919e166aa30e7d3b
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SHA1
910aa7e8107e9c7e631c89ed591cfdff539f6ca3
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SHA256
8a255fb5b62dca78b85d003f63f6b9667051960995c0f46a744c86d644e36f96
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SHA512
a4bddcc49c69de236aa40714519d75d7fd307074f63519457e2e4016fc7ed496130ef8ec5bbd149a0ffa2603bef020fed4a4d90b08cbe2e3ace209d2e3499d09
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SSDEEP
98304:GHxMZDJ1TRpxYVX9u2IazANf6hZytTD5iq6v:sxEvYjVzANihwNm
Malware Config
Signatures
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Glupteba family
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Glupteba payload 1 IoCs
resource yara_rule behavioral2/files/0x000b00000002426c-125.dat family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1000 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 4304 csrss.exe 5004 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\"" 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_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.
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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 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\rss 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe File created C:\Windows\rss\csrss.exe 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe -
pid Process 5132 powershell.exe 2384 powershell.exe 3556 powershell.exe 5408 powershell.exe 1692 powershell.exe 5840 powershell.exe 2632 powershell.exe -
Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs
Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe -
System Location Discovery: System Language Discovery 1 TTPs 10 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_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 -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_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,-1722 = "Libya Standard Time" 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.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,-2002 = "Cabo Verde Standard Time" 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\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,-572 = "China Standard Time" 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs 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,-2432 = "Cuba Standard Time" 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_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" 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_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\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_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,-1861 = "Russia TZ 6 Daylight Time" 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_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\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_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,-2791 = "Novosibirsk Daylight Time" 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_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,-302 = "Romance Standard Time" 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.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,-1661 = "Bahia Daylight Time" 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_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,-452 = "Caucasus Standard Time" 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_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" 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_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,-381 = "South Africa Daylight Time" 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_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 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot 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,-132 = "US Eastern Standard Time" 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_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\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.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,-742 = "New Zealand Standard Time" 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_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,-632 = "Tokyo Standard Time" 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_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,-1821 = "Russia TZ 1 Daylight Time" 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_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,-71 = "Newfoundland Daylight Time" 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_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,-211 = "Pacific Daylight Time" 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.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,-32 = "Mid-Atlantic Standard Time" 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_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 3016 schtasks.exe 5520 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1692 powershell.exe 1692 powershell.exe 4340 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4340 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 5840 powershell.exe 5840 powershell.exe 5804 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 5804 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 5804 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 5804 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 5804 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 5804 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 5804 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 5804 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 5804 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 5804 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 2632 powershell.exe 2632 powershell.exe 5132 powershell.exe 5132 powershell.exe 2384 powershell.exe 2384 powershell.exe 3556 powershell.exe 3556 powershell.exe 5408 powershell.exe 5408 powershell.exe 5004 injector.exe 5004 injector.exe 5004 injector.exe 5004 injector.exe 5004 injector.exe 5004 injector.exe 5004 injector.exe 4304 csrss.exe 5004 injector.exe 4304 csrss.exe 5004 injector.exe 5004 injector.exe 5004 injector.exe 5004 injector.exe 4304 csrss.exe 4304 csrss.exe 5004 injector.exe 5004 injector.exe 5004 injector.exe 5004 injector.exe 5004 injector.exe 5004 injector.exe 5004 injector.exe 5004 injector.exe 5004 injector.exe 5004 injector.exe 5004 injector.exe 5004 injector.exe 5004 injector.exe 5004 injector.exe 5004 injector.exe 5004 injector.exe 5004 injector.exe 5004 injector.exe 5004 injector.exe 5004 injector.exe 5004 injector.exe 5004 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 1692 powershell.exe Token: SeDebugPrivilege 4340 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Token: SeImpersonatePrivilege 4340 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Token: SeDebugPrivilege 5840 powershell.exe Token: SeDebugPrivilege 2632 powershell.exe Token: SeDebugPrivilege 5132 powershell.exe Token: SeDebugPrivilege 2384 powershell.exe Token: SeDebugPrivilege 3556 powershell.exe Token: SeDebugPrivilege 5408 powershell.exe Token: SeSystemEnvironmentPrivilege 4304 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 4340 wrote to memory of 1692 4340 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 89 PID 4340 wrote to memory of 1692 4340 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 89 PID 4340 wrote to memory of 1692 4340 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 89 PID 5804 wrote to memory of 5840 5804 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 94 PID 5804 wrote to memory of 5840 5804 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 94 PID 5804 wrote to memory of 5840 5804 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 94 PID 5804 wrote to memory of 2060 5804 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 96 PID 5804 wrote to memory of 2060 5804 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 96 PID 2060 wrote to memory of 1000 2060 cmd.exe 98 PID 2060 wrote to memory of 1000 2060 cmd.exe 98 PID 5804 wrote to memory of 2632 5804 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 99 PID 5804 wrote to memory of 2632 5804 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 99 PID 5804 wrote to memory of 2632 5804 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 99 PID 5804 wrote to memory of 5132 5804 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 101 PID 5804 wrote to memory of 5132 5804 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 101 PID 5804 wrote to memory of 5132 5804 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 101 PID 5804 wrote to memory of 4304 5804 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 103 PID 5804 wrote to memory of 4304 5804 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 103 PID 5804 wrote to memory of 4304 5804 2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 103 PID 4304 wrote to memory of 2384 4304 csrss.exe 104 PID 4304 wrote to memory of 2384 4304 csrss.exe 104 PID 4304 wrote to memory of 2384 4304 csrss.exe 104 PID 4304 wrote to memory of 3556 4304 csrss.exe 109 PID 4304 wrote to memory of 3556 4304 csrss.exe 109 PID 4304 wrote to memory of 3556 4304 csrss.exe 109 PID 4304 wrote to memory of 5408 4304 csrss.exe 112 PID 4304 wrote to memory of 5408 4304 csrss.exe 112 PID 4304 wrote to memory of 5408 4304 csrss.exe 112 PID 4304 wrote to memory of 5004 4304 csrss.exe 114 PID 4304 wrote to memory of 5004 4304 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\2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe"C:\Users\Admin\AppData\Local\Temp\2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_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:4340 -
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:1692
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C:\Users\Admin\AppData\Local\Temp\2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe"C:\Users\Admin\AppData\Local\Temp\2025-03-18_e723ac0c86ba48c4919e166aa30e7d3b_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:5804 -
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:5840
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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:2060 -
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:1000
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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:2632
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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:5132
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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:4304 -
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:2384
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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:3016
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3560
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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:3556
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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:5408
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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:5004
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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:5520
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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
MD53d086a433708053f9bf9523e1d87a4e8
SHA1b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA2566f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
SHA512931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c511469965056e3d9cd3d3a1335336f4
SHA183af38cfda8dd8ce1080438a85dc9082ff0b85c4
SHA256fecf4825b697cdc3315a3d4092c4deddbb7cd5255580ad0dfc592ce922db8b61
SHA512b572d28f2e6e328372411d5c385919e6cda263660ab611df514ee40b30f4969efdc23ad7ea8b171e8d268dab3fd8b0cd4a69f89ab30bbc321a625f31d7cea0a9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD598dc2303bb996a2f206dff07d894a7f1
SHA1bd890759d768ecc3c1ce1ebee84c2013d3b6a0d9
SHA2560c4dde0cf1d4389f5b79f094f167f3da53d848dc01bf2810c4a3d1932f6224ab
SHA512c21689c9596e0b1d8b48caa9e21ce4a8319806fd443911a87d020a9522c5eefbd2a8cfc3ade1bd256ef036c48ea9494e202045fb0924c1a04341d92a29093346
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ea4e5ff69b183fac4a074fa2fef44111
SHA1cec2a8aa105e5282ee74c5f6002afc8e21158039
SHA256bc33de0ea9c8bdf0a8c4149e544c6990377d454d4e4d713aedf1ac7b596485ec
SHA51278402229550bf051a370ca5dd8306c87918966b4b6aa1f96e4f1543cec62e865c377596dadbf3ec6c33aae2f07eafedb1a28e8eacb9d585bd4788c685ca774a3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD555162f89e7e92519a0499b51029b6bff
SHA10bcf48bb91056946a3c578d8ccd51c026718fd8c
SHA256c2dfdf72556463ee63505d523ebacbf63ec8643b5d05e6805f997415e81dc698
SHA512421b39168a50a45c313a28f41e77fba3990ed561818b4538fb6115d62817c03f5a94d09ea884ba48d1fa434ba8e1ed4cab88b5b2e9dceac80393c0e95b1be5a0
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD561c576ddb45256a1fcef62f4af3da051
SHA1ba50f3f29b88bc109bb26c2c1afab3b3827a53fd
SHA2565079926dbeb2ae7d7a654b866fff7800eb605471877283e5b1b9f49595cb083a
SHA512584b4a056a9c3971661bc92ea23d477dd68902db4529dead8191f0015a77f71a1a187ecc61ae76e5173c9e569a5c7c7939f3d2db28288cf5309d29dc18142b92
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Filesize
9.1MB
MD5e723ac0c86ba48c4919e166aa30e7d3b
SHA1910aa7e8107e9c7e631c89ed591cfdff539f6ca3
SHA2568a255fb5b62dca78b85d003f63f6b9667051960995c0f46a744c86d644e36f96
SHA512a4bddcc49c69de236aa40714519d75d7fd307074f63519457e2e4016fc7ed496130ef8ec5bbd149a0ffa2603bef020fed4a4d90b08cbe2e3ace209d2e3499d09