Analysis
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max time kernel
149s -
max time network
143s -
platform
windows10-2004_x64 -
resource
win10v2004-20250313-en -
resource tags
arch:x64arch:x86image:win10v2004-20250313-enlocale:en-usos:windows10-2004-x64system -
submitted
22/03/2025, 18:20
Behavioral task
behavioral1
Sample
2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
Resource
win10v2004-20250313-en
General
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Target
2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
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Size
9.1MB
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MD5
afac5e4b4d8cb6f10353da7e8fa83fa1
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SHA1
ca92e8ab80c94ad5ad4530863adbb1e494bc817f
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SHA256
65df23849c6a6722b36b8d3bd101c9b58ec82ab0f91ef09524a7b9c91fe76078
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SHA512
91540b869195273fb82eb2a3f9b66d3eb868448c2db50e7c453ad6bb77c4293934fe1a05dd1850853a5e357bb49a7dd5b213ccb92718a2009cdda775e2de5535
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SSDEEP
98304:GHxMZDJ1TRpxYVX9u2IazANfAhZytTD5iqk4:sxEvYjVzANIhwNP
Malware Config
Signatures
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Glupteba family
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Glupteba payload 1 IoCs
resource yara_rule behavioral2/files/0x000700000002422f-125.dat family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4760 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 4552 csrss.exe 3964 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1279544337-3716153908-718418795-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\S-1-5-21-1279544337-3716153908-718418795-1000\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 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_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 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe File created C:\Windows\rss\csrss.exe 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe -
pid Process 4448 powershell.exe 5872 powershell.exe 5920 powershell.exe 4812 powershell.exe 1476 powershell.exe 1660 powershell.exe 5224 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 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_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 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 -
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,-832 = "SA Eastern Standard Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.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\trust\CTLs 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,-282 = "Central Europe Standard Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_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,-692 = "Tasmania Standard Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_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\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_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\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs 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,-1721 = "Libya Daylight Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_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,-1411 = "Syria Daylight Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_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,-401 = "Arabic Daylight Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.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,-331 = "E. Europe Daylight Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_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,-2591 = "Tocantins Daylight Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_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\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust 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,-222 = "Alaskan Standard Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_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,-451 = "Caucasus Daylight Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_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,-2371 = "Easter Island Daylight Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_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" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.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,-2001 = "Cabo Verde Daylight Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_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,-961 = "Paraguay Daylight Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_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\Microsoft\SystemCertificates\SmartCardRoot\Certificates 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,-1872 = "Russia TZ 7 Standard Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_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,-382 = "South Africa Standard Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe -
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 3244 schtasks.exe 4528 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 5224 powershell.exe 5224 powershell.exe 3572 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 3572 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4448 powershell.exe 4448 powershell.exe 4120 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4120 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4120 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4120 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4120 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4120 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4120 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4120 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4120 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4120 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 5872 powershell.exe 5872 powershell.exe 5872 powershell.exe 5920 powershell.exe 5920 powershell.exe 5920 powershell.exe 4812 powershell.exe 4812 powershell.exe 4812 powershell.exe 1476 powershell.exe 1476 powershell.exe 1476 powershell.exe 1660 powershell.exe 1660 powershell.exe 1660 powershell.exe 3964 injector.exe 3964 injector.exe 3964 injector.exe 3964 injector.exe 3964 injector.exe 3964 injector.exe 4552 csrss.exe 4552 csrss.exe 3964 injector.exe 3964 injector.exe 3964 injector.exe 3964 injector.exe 3964 injector.exe 3964 injector.exe 4552 csrss.exe 4552 csrss.exe 3964 injector.exe 3964 injector.exe 3964 injector.exe 3964 injector.exe 3964 injector.exe 3964 injector.exe 3964 injector.exe 3964 injector.exe 3964 injector.exe 3964 injector.exe 3964 injector.exe 3964 injector.exe 3964 injector.exe 3964 injector.exe 3964 injector.exe 3964 injector.exe 3964 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 5224 powershell.exe Token: SeDebugPrivilege 3572 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Token: SeImpersonatePrivilege 3572 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Token: SeDebugPrivilege 4448 powershell.exe Token: SeDebugPrivilege 5872 powershell.exe Token: SeDebugPrivilege 5920 powershell.exe Token: SeDebugPrivilege 4812 powershell.exe Token: SeDebugPrivilege 1476 powershell.exe Token: SeDebugPrivilege 1660 powershell.exe Token: SeSystemEnvironmentPrivilege 4552 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 3572 wrote to memory of 5224 3572 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 89 PID 3572 wrote to memory of 5224 3572 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 89 PID 3572 wrote to memory of 5224 3572 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 89 PID 4120 wrote to memory of 4448 4120 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 99 PID 4120 wrote to memory of 4448 4120 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 99 PID 4120 wrote to memory of 4448 4120 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 99 PID 4120 wrote to memory of 628 4120 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 101 PID 4120 wrote to memory of 628 4120 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 101 PID 628 wrote to memory of 4760 628 cmd.exe 103 PID 628 wrote to memory of 4760 628 cmd.exe 103 PID 4120 wrote to memory of 5872 4120 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 104 PID 4120 wrote to memory of 5872 4120 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 104 PID 4120 wrote to memory of 5872 4120 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 104 PID 4120 wrote to memory of 5920 4120 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 108 PID 4120 wrote to memory of 5920 4120 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 108 PID 4120 wrote to memory of 5920 4120 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 108 PID 4120 wrote to memory of 4552 4120 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 111 PID 4120 wrote to memory of 4552 4120 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 111 PID 4120 wrote to memory of 4552 4120 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 111 PID 4552 wrote to memory of 4812 4552 csrss.exe 112 PID 4552 wrote to memory of 4812 4552 csrss.exe 112 PID 4552 wrote to memory of 4812 4552 csrss.exe 112 PID 4552 wrote to memory of 1476 4552 csrss.exe 117 PID 4552 wrote to memory of 1476 4552 csrss.exe 117 PID 4552 wrote to memory of 1476 4552 csrss.exe 117 PID 4552 wrote to memory of 1660 4552 csrss.exe 120 PID 4552 wrote to memory of 1660 4552 csrss.exe 120 PID 4552 wrote to memory of 1660 4552 csrss.exe 120 PID 4552 wrote to memory of 3964 4552 csrss.exe 122 PID 4552 wrote to memory of 3964 4552 csrss.exe 122 -
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\2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe"C:\Users\Admin\AppData\Local\Temp\2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_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:3572 -
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:5224
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C:\Users\Admin\AppData\Local\Temp\2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe"C:\Users\Admin\AppData\Local\Temp\2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_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:4120 -
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:4448
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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:628 -
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:4760
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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:5872
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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:5920
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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:4552 -
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:4812
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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:3244
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:868
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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:1476
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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:1660
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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:3964
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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:4528
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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
MD5c3298ce0db24fa7a61c422d0bb0b6fcd
SHA15d6839349718aacdb4125673af8073bef4fe0ed8
SHA256d0774ab16fd14712d3f566429ad4aac950eda3a7f3a7e60de9b16255a1aa1b80
SHA512eb4b0a455a81e2c88e983b22d493a28ff153c827dde28223b46929affcc2b6bf7b10e7277565b1e30ba520aab724db37e8e9f38fb219f7284a0727267602c46f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b15de100676b069ad43ff2bd2bdda98f
SHA1b9c67cf81c623b35b13014593d4cf34c2d959365
SHA2560de7403b1ced321cfdf6224053cd49127cacf1b63b6a747e524db353ff7dc050
SHA512a4f4c7ef5aae6d34a508f5d14d70766d01c428e6e0dac4270f1f0b0cb5c29bc50e01d853e7e99cba8b0d8efc3b001420005d29ea886251b74ad36b504b87f5f8
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD533da041ec3b6c90dbb49e5c8811246aa
SHA18d96433b7e3f54751909e0a8f779859d9dfc9f68
SHA25619c2e2d387d20ae8fd0e42a0a45246a2f437eee11d3f9909159850973edd1033
SHA512edbdf4a61aed23f1fe4b4166b3704facf236b26ac8f34cac738e62dee40b7a76fb1fa34936cb77dd31c81f9ac009a1ff4183b3e35ad5bd70b28a63df4ad9771a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a081ad3096a7341e60589717550a503c
SHA14e7bec6d5329bfefdaaaf551bb5d14f27f2c7e2f
SHA2567c484692dd3cdd7697f5c45c21f0812059158c4613895e0b64e61d4e786be0d5
SHA512b18da44ac2c33f3e81716349311c946b9d4aa155e3e65610bdb49be1c04c747782fa3dd4534a741d9ef063dde99c00db566a284367e932b5dc2cbb83bb53fed9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54193bf706b860f50f0767af88c7c1634
SHA13628fb325b09e4359b236d42059578d9d3c6d687
SHA2565ada9c58ebe1945bb7984213cf3cbd71b9c1284e05bc7cebae150a35097d35b2
SHA5128aa399e9c27f916ebf5be016997792c058d1347a469df33dd34c24b85a7bc4ecf278f6b9c5b1e98891d5d6e9250834d6c7c3d2f98a543fdb84dcae2b6cebcad5
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Filesize
9.1MB
MD5afac5e4b4d8cb6f10353da7e8fa83fa1
SHA1ca92e8ab80c94ad5ad4530863adbb1e494bc817f
SHA25665df23849c6a6722b36b8d3bd101c9b58ec82ab0f91ef09524a7b9c91fe76078
SHA51291540b869195273fb82eb2a3f9b66d3eb868448c2db50e7c453ad6bb77c4293934fe1a05dd1850853a5e357bb49a7dd5b213ccb92718a2009cdda775e2de5535