Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20250314-en -
resource tags
arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system -
submitted
22/03/2025, 20:01
Behavioral task
behavioral1
Sample
2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
Resource
win10v2004-20250314-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/0x000900000002425f-125.dat family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 752 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 968 csrss.exe 3276 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\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-1-5-21-3342763580-2723508992-2885672917-1000\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 opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe 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 5424 powershell.exe 4744 powershell.exe 1520 powershell.exe 2392 powershell.exe 6068 powershell.exe 2876 powershell.exe 4240 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 csrss.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.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 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 powershell.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs 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,-161 = "Central 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,-385 = "Namibia 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,-105 = "Central Brazilian 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,-2891 = "Sudan 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,-751 = "Tonga 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\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_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,-2342 = "Haiti Standard Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.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,-292 = "Central European 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,-721 = "Central Pacific 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,-591 = "Malay Peninsula Daylight Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" 2025-03-22_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,-2511 = "Lord Howe 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,-1871 = "Russia TZ 7 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,-532 = "Sri Lanka Standard Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs 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,-892 = "Morocco Standard Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.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 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs 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,-182 = "Mountain Standard Time (Mexico)" 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,-1912 = "Russia TZ 10 Standard Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_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,-2491 = "Aus Central W. 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,-361 = "GTB Daylight Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_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\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan 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,-372 = "Jerusalem Standard Time" 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland 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,-1822 = "Russia TZ 1 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\Microsoft\SystemCertificates\CA\CRLs powershell.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2136 schtasks.exe 2436 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 5424 powershell.exe 5424 powershell.exe 4144 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4144 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4744 powershell.exe 4744 powershell.exe 540 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 540 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 540 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 540 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 540 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 540 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 540 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 540 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 540 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 540 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 1520 powershell.exe 1520 powershell.exe 2392 powershell.exe 2392 powershell.exe 6068 powershell.exe 6068 powershell.exe 2876 powershell.exe 2876 powershell.exe 4240 powershell.exe 4240 powershell.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 968 csrss.exe 968 csrss.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 968 csrss.exe 968 csrss.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe 3276 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 5424 powershell.exe Token: SeDebugPrivilege 4144 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Token: SeImpersonatePrivilege 4144 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Token: SeDebugPrivilege 4744 powershell.exe Token: SeDebugPrivilege 1520 powershell.exe Token: SeDebugPrivilege 2392 powershell.exe Token: SeDebugPrivilege 6068 powershell.exe Token: SeDebugPrivilege 2876 powershell.exe Token: SeDebugPrivilege 4240 powershell.exe Token: SeSystemEnvironmentPrivilege 968 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 4144 wrote to memory of 5424 4144 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 90 PID 4144 wrote to memory of 5424 4144 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 90 PID 4144 wrote to memory of 5424 4144 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 90 PID 540 wrote to memory of 4744 540 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 95 PID 540 wrote to memory of 4744 540 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 95 PID 540 wrote to memory of 4744 540 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 95 PID 540 wrote to memory of 1716 540 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 100 PID 540 wrote to memory of 1716 540 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 100 PID 1716 wrote to memory of 752 1716 cmd.exe 102 PID 1716 wrote to memory of 752 1716 cmd.exe 102 PID 540 wrote to memory of 1520 540 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 103 PID 540 wrote to memory of 1520 540 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 103 PID 540 wrote to memory of 1520 540 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 103 PID 540 wrote to memory of 2392 540 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 105 PID 540 wrote to memory of 2392 540 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 105 PID 540 wrote to memory of 2392 540 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 105 PID 540 wrote to memory of 968 540 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 108 PID 540 wrote to memory of 968 540 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 108 PID 540 wrote to memory of 968 540 2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 108 PID 968 wrote to memory of 6068 968 csrss.exe 109 PID 968 wrote to memory of 6068 968 csrss.exe 109 PID 968 wrote to memory of 6068 968 csrss.exe 109 PID 968 wrote to memory of 2876 968 csrss.exe 116 PID 968 wrote to memory of 2876 968 csrss.exe 116 PID 968 wrote to memory of 2876 968 csrss.exe 116 PID 968 wrote to memory of 4240 968 csrss.exe 118 PID 968 wrote to memory of 4240 968 csrss.exe 118 PID 968 wrote to memory of 4240 968 csrss.exe 118 PID 968 wrote to memory of 3276 968 csrss.exe 120 PID 968 wrote to memory of 3276 968 csrss.exe 120 -
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:4144 -
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:5424
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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:540 -
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:4744
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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:1716 -
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:752
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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:1520
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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:2392
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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:968 -
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:6068
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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:2136
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:5744
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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:2876
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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:4240
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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:3276
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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:2436
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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
MD5a90a1e127af62be577f409757adf2542
SHA181795d2c64cff3b18b976f6118cb37833ab7c5ef
SHA2564f00d34fe08e8df449a2564e18a0d8c89e8fc13f669ba80db858f561da468061
SHA512d812c93ead3ffa1d5974f7467903d58b5afff3e26c15ae4838d4fed12d4d971c2ed1b21eae64cbb663bcbedd4a4ec5c2cea8c5282e7a941c96090ff60626eca3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD548d493d1d8ee6ed6c43577e9b7a520b1
SHA15e0196d13e63f21f1ded39e05d5fca0168c06245
SHA256dee5fe6d4a385a92790a7817ca26ce5ff33a009e8b645c4a9f23788caaac6201
SHA512fb57d83d8db8f0f22badcb364437bde4bc812488857f76063b4591645ecea5533de2b6e24831102696ab9e8724e65aaa63aa8ec83c2fac899efb5306920f882c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d53e7829bdf34784e2254eb5afa2822a
SHA15666c2787d25765ee7a9dbd7262fdb50d57907f6
SHA256a217e192cc93576105a0676677cc537f0b5647bc54b2e981bd44f1c652c8e612
SHA51261aca4647eed9f51701bd7362f2986d7e5e82aeabb877e16d216483e4d0ba8f1a008aa7734ad799065702e8a60f148094f0b4c4119b6dca62f9a844c2c5f69c9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53f5badc8900b682ce23d07220a67b217
SHA1a739d866b3c6cababa888f486f14fd98f7c21a00
SHA256a74cd9e77170bef02770243fd8cfe3d3afa498dc1299ee022b17785ee2a8c1f7
SHA512cf7fd37004951957f43f1bb69c7ceaae3b7b416045215f3ff75e413f426d6658b2c9e76b5d61548406a507a569cc30cf6adab35ae630f94906f7264e32e933da
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5107b6a664f73b64f5a9142a52a42013a
SHA1c05218b2509ceaf635a733d6156a0d076851aa4d
SHA25681414239967efa414fceb9c243402881c4d1733394317aeebf145938551ebf11
SHA51298b7b4fd65c39f861df90c277cd494ff5bfc5b9ce3e698c172ff8478dc2bbe27125076c610add97f4a8c1ddbfc4eac3da0366b9324515fdbc883bb24b2ad6f69
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Filesize
9.1MB
MD5afac5e4b4d8cb6f10353da7e8fa83fa1
SHA1ca92e8ab80c94ad5ad4530863adbb1e494bc817f
SHA25665df23849c6a6722b36b8d3bd101c9b58ec82ab0f91ef09524a7b9c91fe76078
SHA51291540b869195273fb82eb2a3f9b66d3eb868448c2db50e7c453ad6bb77c4293934fe1a05dd1850853a5e357bb49a7dd5b213ccb92718a2009cdda775e2de5535