Analysis
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max time kernel
150s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20250314-en -
resource tags
arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system -
submitted
20/03/2025, 03:40
Behavioral task
behavioral1
Sample
2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
Resource
win10v2004-20250314-en
General
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Target
2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
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Size
9.1MB
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MD5
a681709ff4bf3d52d95ca1a41efac2b7
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SHA1
c72d6f2689eb44498f033893f16d055855b4ddbb
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SHA256
fc216735766f30b6beb173625795db748da63f48cd2cc72208a074bc5ae691ad
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SHA512
c16fba1841460bde0b62fb175d74f4952c45a1ac4467b516c093a298ff279af540b7bf6b3e5b84cd793b69d428ca03097fbfe678dfe403e47123bbc755ba76bc
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SSDEEP
98304:GHxMZDJ1TRpxYVX9u2IazANf6hZytTD5iq6+:sxEvYjVzANihwNt
Malware Config
Signatures
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Glupteba family
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Glupteba payload 1 IoCs
resource yara_rule behavioral2/files/0x000a000000024143-126.dat family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 996 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 4548 csrss.exe 2228 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File 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 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 -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\rss 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe File created C:\Windows\rss\csrss.exe 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe -
pid Process 4396 powershell.exe 920 powershell.exe 2540 powershell.exe 216 powershell.exe 3112 powershell.exe 3584 powershell.exe 2432 powershell.exe -
Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs
Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe -
System Location Discovery: System Language Discovery 1 TTPs 10 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_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 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 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_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 -
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,-1971 = "Belarus Daylight Time" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_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" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_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,-2431 = "Cuba Daylight Time" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_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,-42 = "E. South America Standard Time" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_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 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.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,-2891 = "Sudan Daylight Time" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_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,-691 = "Tasmania Daylight Time" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\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,-2611 = "Bougainville Daylight Time" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_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,-631 = "Tokyo Daylight Time" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_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,-621 = "Korea Daylight Time" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_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,-2571 = "Turks and Caicos Daylight Time" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs 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,-1501 = "Turkey Daylight Time" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_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,-221 = "Alaskan Daylight Time" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_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,-441 = "Arabian Daylight Time" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_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" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs 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\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\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\trust\CTLs powershell.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,-104 = "Central Brazilian Daylight Time" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_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)" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_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" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_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,-2392 = "Aleutian Standard Time" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_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" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_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,-1831 = "Russia TZ 2 Daylight Time" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_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\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_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,-1471 = "Magadan Daylight Time" 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2624 schtasks.exe 2676 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3584 powershell.exe 3584 powershell.exe 4724 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4724 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 2432 powershell.exe 2432 powershell.exe 3472 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 3472 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 3472 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 3472 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 3472 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 3472 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 3472 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 3472 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 3472 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 3472 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 4396 powershell.exe 4396 powershell.exe 920 powershell.exe 920 powershell.exe 2540 powershell.exe 2540 powershell.exe 216 powershell.exe 216 powershell.exe 3112 powershell.exe 3112 powershell.exe 2228 injector.exe 2228 injector.exe 2228 injector.exe 2228 injector.exe 2228 injector.exe 2228 injector.exe 4548 csrss.exe 4548 csrss.exe 2228 injector.exe 2228 injector.exe 2228 injector.exe 2228 injector.exe 2228 injector.exe 2228 injector.exe 4548 csrss.exe 4548 csrss.exe 2228 injector.exe 2228 injector.exe 2228 injector.exe 2228 injector.exe 2228 injector.exe 2228 injector.exe 2228 injector.exe 2228 injector.exe 2228 injector.exe 2228 injector.exe 2228 injector.exe 2228 injector.exe 2228 injector.exe 2228 injector.exe 2228 injector.exe 2228 injector.exe 2228 injector.exe 2228 injector.exe 2228 injector.exe 2228 injector.exe 2228 injector.exe 2228 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 3584 powershell.exe Token: SeDebugPrivilege 4724 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Token: SeImpersonatePrivilege 4724 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Token: SeDebugPrivilege 2432 powershell.exe Token: SeDebugPrivilege 4396 powershell.exe Token: SeDebugPrivilege 920 powershell.exe Token: SeDebugPrivilege 2540 powershell.exe Token: SeDebugPrivilege 216 powershell.exe Token: SeDebugPrivilege 3112 powershell.exe Token: SeSystemEnvironmentPrivilege 4548 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 4724 wrote to memory of 3584 4724 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 89 PID 4724 wrote to memory of 3584 4724 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 89 PID 4724 wrote to memory of 3584 4724 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 89 PID 3472 wrote to memory of 2432 3472 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 94 PID 3472 wrote to memory of 2432 3472 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 94 PID 3472 wrote to memory of 2432 3472 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 94 PID 3472 wrote to memory of 4692 3472 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 96 PID 3472 wrote to memory of 4692 3472 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 96 PID 4692 wrote to memory of 996 4692 cmd.exe 98 PID 4692 wrote to memory of 996 4692 cmd.exe 98 PID 3472 wrote to memory of 4396 3472 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 99 PID 3472 wrote to memory of 4396 3472 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 99 PID 3472 wrote to memory of 4396 3472 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 99 PID 3472 wrote to memory of 920 3472 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 101 PID 3472 wrote to memory of 920 3472 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 101 PID 3472 wrote to memory of 920 3472 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 101 PID 3472 wrote to memory of 4548 3472 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 103 PID 3472 wrote to memory of 4548 3472 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 103 PID 3472 wrote to memory of 4548 3472 2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 103 PID 4548 wrote to memory of 2540 4548 csrss.exe 104 PID 4548 wrote to memory of 2540 4548 csrss.exe 104 PID 4548 wrote to memory of 2540 4548 csrss.exe 104 PID 4548 wrote to memory of 216 4548 csrss.exe 110 PID 4548 wrote to memory of 216 4548 csrss.exe 110 PID 4548 wrote to memory of 216 4548 csrss.exe 110 PID 4548 wrote to memory of 3112 4548 csrss.exe 112 PID 4548 wrote to memory of 3112 4548 csrss.exe 112 PID 4548 wrote to memory of 3112 4548 csrss.exe 112 PID 4548 wrote to memory of 2228 4548 csrss.exe 114 PID 4548 wrote to memory of 2228 4548 csrss.exe 114 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe"C:\Users\Admin\AppData\Local\Temp\2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_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:4724 -
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:3584
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C:\Users\Admin\AppData\Local\Temp\2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe"C:\Users\Admin\AppData\Local\Temp\2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_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:3472 -
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:2432
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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:4692 -
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:996
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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:4396
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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:920
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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:4548 -
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:2540
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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:2624
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4576
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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:216
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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:3112
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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:2228
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Scheduled Task/Job: Scheduled Task
PID:2676
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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
MD578e4415f2519425e23ba464d22def1f4
SHA18bf462d4e6337c7f07ec37bb9fdd0d43381ac8b1
SHA256446654b278d22b66e2212ad63e45eca59f38eaf8c11d9eaff67dc7fe1465cc15
SHA512846f25f545522c7c6d3509b7aba668d2231eedebce80c27ae4e415fab80fea3aae6527503150ca599df57c2ccfdcaaaf06948773e9dce25c9a38905a21cd2232
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5218c797cdbf2ed4ea5337ed86871e0a8
SHA10d25ee0bbb2d68c50c3c84ef0edc087c2cc1e27c
SHA2560b4ae128492b335dcf06c73d22a4510ea81df57e303d1693c20bf5c1d5e0220b
SHA5126148bd47b5364980adb9e33fd8308ec1db0194fd02c23f65ba4e97f9dd345c97c8bb1c22f356b3f3ec826ec401bdc17c009874ff891e36b13a8c4372a1d292cb
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c3993eedbbd54b2f08127847eb53388c
SHA1440a924063dc6cea8dfc56811060cce5e938db17
SHA2560f2be462bd47b7c414b9e4a08bda9106ba18f931a2044c8cdceff54296d18a13
SHA512ac448f3876fe1a7ae6e6558a4e0647b63b64ba0ea5f05b57024a1f6216590364bfa4fdc054887237a09e984f7bac2fcef74a2a9b8abbe2858637da969450cf88
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fe2a0c1d2a74873e2f9f683f54f22109
SHA140eeba6e800601cff1027a6cce2cf9e4deda0cec
SHA256d8210e3b1e4c58f76d8bd661b208c09fbdd73ced44cbe277803489ae76e40f88
SHA512cca75842bce59f0ec23d653553319a351ad8f6864da4a6a4a6d47d8559a40412c87c4bcab99918952be094401af32569677d0f3eaf7f9907d5789a257f4bd3d9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d497d8e336dbedfd01bf42111044bbe1
SHA1f2e5453a3da644b9bcc95d3023e1da2fb376f044
SHA2564c330b72ae2d3092cfe70a0a582795cf118b4bcee36e81860e3576a602a9c953
SHA512766da0ccf07306e29fdfc5980af0315f3d7d58b4ecb464f364617d874ed3d235be8dc68794474df5e2543de57505322b43536629c4c74ed77c37ad25fe171d5f
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Filesize
9.1MB
MD5a681709ff4bf3d52d95ca1a41efac2b7
SHA1c72d6f2689eb44498f033893f16d055855b4ddbb
SHA256fc216735766f30b6beb173625795db748da63f48cd2cc72208a074bc5ae691ad
SHA512c16fba1841460bde0b62fb175d74f4952c45a1ac4467b516c093a298ff279af540b7bf6b3e5b84cd793b69d428ca03097fbfe678dfe403e47123bbc755ba76bc