Analysis
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max time kernel
150s -
max time network
125s -
platform
windows10-2004_x64 -
resource
win10v2004-20250314-en -
resource tags
arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system -
submitted
18/03/2025, 04:53
Behavioral task
behavioral1
Sample
2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
Resource
win10v2004-20250314-en
General
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Target
2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
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Size
9.1MB
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MD5
c3e1d1a09eea71992d4dab6fc1667d8e
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SHA1
939610fbfa7cab916f67a3dfab559e002d66a709
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SHA256
6aff74b947b1221353d631fd11d218527f9613fd7735a6f13a706156fedf2bc5
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SHA512
7b87bed98f12ee4c03bd629370ac23c21f5a5d1f477b495018a716f2afb99dae1755a30508150f09ad3f089ffc89551e45a413878c44a97f606fae00d24e3a16
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SSDEEP
98304:GHxMZDJ1TRpxYVX9u2IazANfdhZytTD5iqmm:sxEvYjVzAN1hwNt
Malware Config
Signatures
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Glupteba family
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Glupteba payload 1 IoCs
resource yara_rule behavioral2/files/0x000b000000024338-127.dat family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2444 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 412 csrss.exe 464 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-308834014-1004923324-1191300197-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\S-1-5-21-308834014-1004923324-1191300197-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe File opened for modification C:\Windows\rss 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe -
pid Process 5932 powershell.exe 556 powershell.exe 2588 powershell.exe 2468 powershell.exe 1408 powershell.exe 1804 powershell.exe 1892 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 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_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 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language csrss.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe -
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,-741 = "New Zealand Daylight Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates 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,-651 = "AUS Central Daylight Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_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)" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_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,-242 = "Samoa Standard Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_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" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 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,-412 = "E. Africa Standard Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_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,-2871 = "Magallanes Daylight Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_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,-2142 = "Transbaikal Standard Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_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,-1041 = "Ulaanbaatar Daylight Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_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\trust powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_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\Microsoft\SystemCertificates\SmartCardRoot\CTLs 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,-434 = "Georgian Daylight Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_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,-1821 = "Russia TZ 1 Daylight Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_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,-962 = "Paraguay Standard Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_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,-2592 = "Tocantins Standard Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_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 powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_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,-41 = "E. South America Daylight Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_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,-32 = "Mid-Atlantic Standard Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_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,-3051 = "Qyzylorda Daylight Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_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,-11 = "Azores Daylight Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_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,-981 = "Kamchatka Daylight Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_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,-1411 = "Syria Daylight Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_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\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_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,-2611 = "Bougainville Daylight Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_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,-1802 = "Line Islands Standard Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_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,-602 = "Taipei Standard Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_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,-72 = "Newfoundland Standard Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_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,-3052 = "Qyzylorda Standard Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_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,-682 = "E. Australia Standard Time" 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_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 4500 schtasks.exe 5308 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1804 powershell.exe 1804 powershell.exe 5996 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 5996 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 1892 powershell.exe 1892 powershell.exe 3108 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 3108 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 3108 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 3108 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 3108 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 3108 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 3108 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 3108 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 3108 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 3108 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 5932 powershell.exe 5932 powershell.exe 556 powershell.exe 556 powershell.exe 2588 powershell.exe 2588 powershell.exe 2468 powershell.exe 2468 powershell.exe 1408 powershell.exe 1408 powershell.exe 464 injector.exe 464 injector.exe 464 injector.exe 464 injector.exe 464 injector.exe 464 injector.exe 464 injector.exe 464 injector.exe 412 csrss.exe 412 csrss.exe 464 injector.exe 464 injector.exe 464 injector.exe 464 injector.exe 412 csrss.exe 412 csrss.exe 464 injector.exe 464 injector.exe 464 injector.exe 464 injector.exe 464 injector.exe 464 injector.exe 464 injector.exe 464 injector.exe 464 injector.exe 464 injector.exe 464 injector.exe 464 injector.exe 464 injector.exe 464 injector.exe 464 injector.exe 464 injector.exe 464 injector.exe 464 injector.exe 464 injector.exe 464 injector.exe 464 injector.exe 464 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 1804 powershell.exe Token: SeDebugPrivilege 5996 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Token: SeImpersonatePrivilege 5996 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe Token: SeDebugPrivilege 1892 powershell.exe Token: SeDebugPrivilege 5932 powershell.exe Token: SeDebugPrivilege 556 powershell.exe Token: SeDebugPrivilege 2588 powershell.exe Token: SeDebugPrivilege 2468 powershell.exe Token: SeDebugPrivilege 1408 powershell.exe Token: SeSystemEnvironmentPrivilege 412 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 5996 wrote to memory of 1804 5996 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 88 PID 5996 wrote to memory of 1804 5996 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 88 PID 5996 wrote to memory of 1804 5996 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 88 PID 3108 wrote to memory of 1892 3108 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 93 PID 3108 wrote to memory of 1892 3108 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 93 PID 3108 wrote to memory of 1892 3108 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 93 PID 3108 wrote to memory of 540 3108 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 95 PID 3108 wrote to memory of 540 3108 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 95 PID 540 wrote to memory of 2444 540 cmd.exe 97 PID 540 wrote to memory of 2444 540 cmd.exe 97 PID 3108 wrote to memory of 5932 3108 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 98 PID 3108 wrote to memory of 5932 3108 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 98 PID 3108 wrote to memory of 5932 3108 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 98 PID 3108 wrote to memory of 556 3108 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 100 PID 3108 wrote to memory of 556 3108 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 100 PID 3108 wrote to memory of 556 3108 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 100 PID 3108 wrote to memory of 412 3108 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 102 PID 3108 wrote to memory of 412 3108 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 102 PID 3108 wrote to memory of 412 3108 2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe 102 PID 412 wrote to memory of 2588 412 csrss.exe 103 PID 412 wrote to memory of 2588 412 csrss.exe 103 PID 412 wrote to memory of 2588 412 csrss.exe 103 PID 412 wrote to memory of 2468 412 csrss.exe 109 PID 412 wrote to memory of 2468 412 csrss.exe 109 PID 412 wrote to memory of 2468 412 csrss.exe 109 PID 412 wrote to memory of 1408 412 csrss.exe 111 PID 412 wrote to memory of 1408 412 csrss.exe 111 PID 412 wrote to memory of 1408 412 csrss.exe 111 PID 412 wrote to memory of 464 412 csrss.exe 113 PID 412 wrote to memory of 464 412 csrss.exe 113 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe"C:\Users\Admin\AppData\Local\Temp\2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_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:5996 -
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:1804
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C:\Users\Admin\AppData\Local\Temp\2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe"C:\Users\Admin\AppData\Local\Temp\2025-03-18_c3e1d1a09eea71992d4dab6fc1667d8e_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:3108 -
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:1892
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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:540 -
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:2444
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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:5932
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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:556
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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:412 -
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:2588
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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:4500
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:5352
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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:2468
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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:1408
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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:464
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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:5308
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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
MD5aaae359206fe1e2acae21078c8379344
SHA10fbef572a73c294df16c82d62d6ecd0d2b9014e0
SHA2564cbf9011fcfab0b81ed7b78810918aa2cdc12e53e250d5e755152ef703b63087
SHA5123067736fc1a50a15388950c575be6e1786b5494752dfaa001a30217b50ac9aca5d6f1ed1f5a6abe908488628ee797bf23721b2e8a3282a4bed15b2bf666f5e8f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a62409a4d79dca2a71b22c9580e557c6
SHA1c83a517afef9f6e7d41f631767a915aa4366dd73
SHA2564592d35dbbc4a5ce0a538fff2964f8e391c0bfca3d110b739333960ccccd06b1
SHA5127957c4d857cd39b6a1b0121aea1320c64cf92db0db576d7e44d211bdda6c8407821e073f239a1f626535f63f81fd119bff10f2a25c59f27f4a968e914e2bf9a4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5af3da7d4fc63ea008bdf2a982b99c55b
SHA14f4f029299a164a6ddf36ba9018a245f6b7f4124
SHA256f5a1c34a828660c9bc57f559b39a101cd21515de326fcf71e1127d7040f7fb6d
SHA5128e41308080cd4365ec53e21148fa9e4601a1252df0348ed0401d044e717f3f6b08fc7c888bf0de990279fddc35033eb8d22d24f794e59fc7c4001d4fc9decbc3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53dad5b5061d5ee947607c31256458502
SHA1bf18a0ea3fc0e3fb2d7bc5c733943a376525a36e
SHA256af86732e27508ad57d7d3483916087f8b261f86bfdc759493fc47ba668a52f39
SHA512336ed4229849ccb4335617804d51b915020691f9cf48773f90604e2d8609676c6f16d06767d79f30cf2da9f1958cf88c62322c5c8b94de64bb034a1565893272
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD512637c78e6422b482cb5a845113b3f41
SHA1e1488967b24723e57e5c4e382b74b8634245507f
SHA25617c3385cdee08a208e51091cc9b62e42b0dc46dadee2eaa9293d5c908b2e79a9
SHA5127f7b7f693c7f1832317a0502a8682d8d9bfff114a76a044ddcda4e251141e2cde061eb2b15d9606e00f6d1d70232039c3d12c7ea243349b1a9a118436d95ffa3
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Filesize
9.1MB
MD5c3e1d1a09eea71992d4dab6fc1667d8e
SHA1939610fbfa7cab916f67a3dfab559e002d66a709
SHA2566aff74b947b1221353d631fd11d218527f9613fd7735a6f13a706156fedf2bc5
SHA5127b87bed98f12ee4c03bd629370ac23c21f5a5d1f477b495018a716f2afb99dae1755a30508150f09ad3f089ffc89551e45a413878c44a97f606fae00d24e3a16