Analysis
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max time kernel
149s -
max time network
123s -
platform
windows10-2004_x64 -
resource
win10v2004-20250313-en -
resource tags
arch:x64arch:x86image:win10v2004-20250313-enlocale:en-usos:windows10-2004-x64system -
submitted
17/03/2025, 10:23
Behavioral task
behavioral1
Sample
2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
Resource
win10v2004-20250313-en
General
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Target
2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
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Size
9.1MB
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MD5
b538bbf95474d2b3af7c9a35ca6bae17
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SHA1
a33fbad3a5601d52224a749a68dfbbd77eadbf2b
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SHA256
cdc6c87ca04b9ae34b819f3d394c370993d2ca046ddce4acc6b0a8e3c2aa3a6c
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SHA512
a56cc6d09d7416ae1880c8d757a1fb041c2a01da1314630d1eaee77684d78b8f91733e74f7c6cc473cc6f49968faa1aebc5eceb3ada3c6390946b7bbc07e1587
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SSDEEP
98304:GHxMZDJ1TRpxYVX9u2IazANf6hZytTD5iq6:sxEvYjVzANihwN
Malware Config
Signatures
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Glupteba family
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Glupteba payload 1 IoCs
resource yara_rule behavioral2/files/0x000f0000000240fc-127.dat family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3948 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 1032 csrss.exe 1604 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\"" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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 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 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe File created C:\Windows\rss\csrss.exe 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe -
pid Process 3852 powershell.exe 5832 powershell.exe 2032 powershell.exe 1536 powershell.exe 3668 powershell.exe 5696 powershell.exe 4116 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 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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 -
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,-2161 = "Altai Daylight Time" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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,-1502 = "Turkey Standard Time" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\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\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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,-2872 = "Magallanes Standard Time" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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,-651 = "AUS Central Daylight Time" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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,-292 = "Central European Standard Time" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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,-1892 = "Russia TZ 3 Standard Time" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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,-2941 = "Sao Tome Daylight Time" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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,-131 = "US Eastern Daylight Time" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 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,-442 = "Arabian Standard Time" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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,-111 = "Eastern Daylight Time" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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,-435 = "Georgian Standard Time" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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,-2751 = "Tomsk Daylight Time" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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,-432 = "Iran Standard Time" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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,-364 = "Middle East Daylight Time" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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,-2062 = "North Korea Standard Time" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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,-772 = "Montevideo Standard Time" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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,-91 = "Pacific SA Daylight Time" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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" 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed 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 4488 schtasks.exe 4668 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1536 powershell.exe 1536 powershell.exe 3324 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 3324 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 3668 powershell.exe 3668 powershell.exe 4888 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4888 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4888 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4888 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4888 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4888 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4888 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4888 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4888 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4888 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 5696 powershell.exe 5696 powershell.exe 4116 powershell.exe 4116 powershell.exe 3852 powershell.exe 3852 powershell.exe 5832 powershell.exe 5832 powershell.exe 2032 powershell.exe 2032 powershell.exe 1604 injector.exe 1604 injector.exe 1604 injector.exe 1604 injector.exe 1604 injector.exe 1604 injector.exe 1032 csrss.exe 1032 csrss.exe 1604 injector.exe 1604 injector.exe 1604 injector.exe 1604 injector.exe 1604 injector.exe 1604 injector.exe 1032 csrss.exe 1032 csrss.exe 1604 injector.exe 1604 injector.exe 1604 injector.exe 1604 injector.exe 1604 injector.exe 1604 injector.exe 1604 injector.exe 1604 injector.exe 1604 injector.exe 1604 injector.exe 1604 injector.exe 1604 injector.exe 1604 injector.exe 1604 injector.exe 1604 injector.exe 1604 injector.exe 1604 injector.exe 1604 injector.exe 1604 injector.exe 1604 injector.exe 1604 injector.exe 1604 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 1536 powershell.exe Token: SeDebugPrivilege 3324 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Token: SeImpersonatePrivilege 3324 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Token: SeDebugPrivilege 3668 powershell.exe Token: SeDebugPrivilege 5696 powershell.exe Token: SeDebugPrivilege 4116 powershell.exe Token: SeDebugPrivilege 3852 powershell.exe Token: SeDebugPrivilege 5832 powershell.exe Token: SeDebugPrivilege 2032 powershell.exe Token: SeSystemEnvironmentPrivilege 1032 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 3324 wrote to memory of 1536 3324 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 89 PID 3324 wrote to memory of 1536 3324 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 89 PID 3324 wrote to memory of 1536 3324 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 89 PID 4888 wrote to memory of 3668 4888 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 97 PID 4888 wrote to memory of 3668 4888 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 97 PID 4888 wrote to memory of 3668 4888 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 97 PID 4888 wrote to memory of 376 4888 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 99 PID 4888 wrote to memory of 376 4888 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 99 PID 376 wrote to memory of 3948 376 cmd.exe 101 PID 376 wrote to memory of 3948 376 cmd.exe 101 PID 4888 wrote to memory of 5696 4888 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 102 PID 4888 wrote to memory of 5696 4888 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 102 PID 4888 wrote to memory of 5696 4888 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 102 PID 4888 wrote to memory of 4116 4888 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 104 PID 4888 wrote to memory of 4116 4888 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 104 PID 4888 wrote to memory of 4116 4888 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 104 PID 4888 wrote to memory of 1032 4888 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 106 PID 4888 wrote to memory of 1032 4888 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 106 PID 4888 wrote to memory of 1032 4888 2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 106 PID 1032 wrote to memory of 3852 1032 csrss.exe 107 PID 1032 wrote to memory of 3852 1032 csrss.exe 107 PID 1032 wrote to memory of 3852 1032 csrss.exe 107 PID 1032 wrote to memory of 5832 1032 csrss.exe 112 PID 1032 wrote to memory of 5832 1032 csrss.exe 112 PID 1032 wrote to memory of 5832 1032 csrss.exe 112 PID 1032 wrote to memory of 2032 1032 csrss.exe 115 PID 1032 wrote to memory of 2032 1032 csrss.exe 115 PID 1032 wrote to memory of 2032 1032 csrss.exe 115 PID 1032 wrote to memory of 1604 1032 csrss.exe 117 PID 1032 wrote to memory of 1604 1032 csrss.exe 117 -
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\2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe"C:\Users\Admin\AppData\Local\Temp\2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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:3324 -
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:1536
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C:\Users\Admin\AppData\Local\Temp\2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe"C:\Users\Admin\AppData\Local\Temp\2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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:4888 -
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:3668
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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:376 -
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:3948
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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:5696
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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:4116
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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:1032 -
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:3852
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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:4488
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:5440
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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:5832
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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:2032
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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:1604
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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:4668
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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
MD5c17e85903f648beb007ca080f8d78670
SHA1795807b5b3cc757515a1b8ef50b021ccd147640a
SHA256db6a04826c1955ee454ee4d45b160366b8e1ee62074d8f22fc1c049a6e3d83a0
SHA512109f8c2ee84c535ca00156ed77b722d033329c7d76a7cee884d8f0d071eb3db93797890e34ca6dd7ba4992ebfd0c395b89b0c6386521b212d19fb658d03b43cf
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d11361c57457b6840e7658b342a12b30
SHA14b87740c6f3d32d33fb1a63d4324a7550eb6e834
SHA2561ce6b7f92aefc0f058e4ff75197cbe10a7ab8b6ad1f96830392c113bfacc9942
SHA512e625a6e5c9fc1a19f3b257fa73b78d7a1da33720018c442360851d81e446fec6ef739a12ae1ce0f23826bae2e2553ee0fe0b4f7c0e4cd7421625a4874cb240ad
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5cfc8fbf95228c9a25be822d3cd8b12c1
SHA1d4cc9a42980c26a5b39d3481997fac13d843dc3d
SHA256fee5968bf6230e9d1bcb37c838bc87e98544e799d4da1f0e2a74d55aa6d5be2e
SHA5127a30946d80ee30718ea3b1fc96cc89ab302b39a397c55d5fc32e5f0da9791d82b200a09fded86fa30aef2ed35d603e47bed0e562bad9e01951a5d68fc21d0fa9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD515f3eff31159d023e322e9cdb04bc5d2
SHA108a368c254eeb955042bdd8bb55efd934bb8868b
SHA2564adbe485cf8d407560f3f5557691e8e2bc6b4a181aa5dc9f3e74370f3a4a6032
SHA512b2ab040f58d2071fdbfd67dffd18ed740a139fe5acf4fe9fcd93f133454e11024f06ddeb7869b7da84474d8c4508883788e420ef962380aabd51b5431745d4cb
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5324120b2aad5ef2d1b974297554f925f
SHA14b154be7db69499e35e14c8e0af84a4edf90c058
SHA2561fbebdbbcc7feba4c1e3aa6e322945e02865334c7326d3a56b235393f4e66865
SHA512c06fadf68bc4666210ffc45a87f2a3212ac8bded8e1c9c64e97334aa86f9efaf39dbf1446174654199656f421155422f34f2a11fd9a4c96e2400f26e376b7356
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Filesize
9.1MB
MD5b538bbf95474d2b3af7c9a35ca6bae17
SHA1a33fbad3a5601d52224a749a68dfbbd77eadbf2b
SHA256cdc6c87ca04b9ae34b819f3d394c370993d2ca046ddce4acc6b0a8e3c2aa3a6c
SHA512a56cc6d09d7416ae1880c8d757a1fb041c2a01da1314630d1eaee77684d78b8f91733e74f7c6cc473cc6f49968faa1aebc5eceb3ada3c6390946b7bbc07e1587