Analysis
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max time kernel
283s -
max time network
299s -
platform
windows10-1703_x64 -
resource
win10-20231020-en -
resource tags
arch:x64arch:x86image:win10-20231020-enlocale:en-usos:windows10-1703-x64system -
submitted
06/11/2023, 04:50
Static task
static1
Behavioral task
behavioral1
Sample
27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe
Resource
win7-20231020-en
General
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Target
27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe
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Size
4.1MB
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MD5
18cee0b0438bb7172989f234ff1471ed
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SHA1
5f315fafe8bb8700b0eafcd8a4b4eaa95e1d43c9
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SHA256
27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804
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SHA512
2d7a71b5d8663553cb3c21ac02c66bb7bb8971832507ccf1e6fde16554423647639fbf71e14f909bc432638c79831af25251858ed72e5fc48042df60618a164b
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SSDEEP
98304:Ju1WsneYuyTFgSQBx15gJ5c2poEACN2h4tBbPvFoR0/GL+b86:Ju1WsnFvTFh6kJ5NsCICbPvFo2/GL+br
Malware Config
Signatures
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Glupteba payload 31 IoCs
resource yara_rule behavioral2/memory/4032-2-0x0000000002E00000-0x00000000036EB000-memory.dmp family_glupteba behavioral2/memory/4032-3-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/4032-68-0x0000000002E00000-0x00000000036EB000-memory.dmp family_glupteba behavioral2/memory/4032-71-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/4032-306-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/3048-309-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/3048-549-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/3048-824-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/3048-1049-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/608-1053-0x0000000003200000-0x0000000003AEB000-memory.dmp family_glupteba behavioral2/memory/608-1054-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/608-1158-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/608-1570-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/608-1802-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/608-1803-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/608-1804-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/608-1805-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/608-1806-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/608-1807-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/608-1808-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/608-1809-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/608-1810-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/608-1811-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/608-1812-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/608-1813-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/608-1814-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/608-1815-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/608-1816-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/608-1817-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/608-1818-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/608-1819-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe = "0" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe -
Modifies Windows Firewall 1 TTPs 1 IoCs
pid Process 1292 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 608 csrss.exe 2728 injector.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe = "0" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-459651055-4136032345-1270294931-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (str) \REGISTRY\USER\S-1-5-21-459651055-4136032345-1270294931-1000\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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Legitimate hosting services abused for malware hosting/C2 1 TTPs
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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 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe File opened for modification C:\Windows\rss 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2948 schtasks.exe 1252 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates 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\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-682 = "E. Australia Standard Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs 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\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs 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\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time" 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Control netsh.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 676 powershell.exe 676 powershell.exe 676 powershell.exe 4032 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe 4032 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe 2372 powershell.exe 2372 powershell.exe 2372 powershell.exe 3048 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe 3048 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe 3048 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe 3048 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe 3048 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe 3048 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe 3048 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe 3048 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe 3048 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe 3048 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe 1520 powershell.exe 1520 powershell.exe 1520 powershell.exe 4468 powershell.exe 4468 powershell.exe 4468 powershell.exe 3704 powershell.exe 3704 powershell.exe 3704 powershell.exe 3628 powershell.exe 3628 powershell.exe 3628 powershell.exe 4504 powershell.exe 4504 powershell.exe 4504 powershell.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 608 csrss.exe 608 csrss.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 608 csrss.exe 608 csrss.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe 2728 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 676 powershell.exe Token: SeDebugPrivilege 4032 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Token: SeImpersonatePrivilege 4032 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe Token: SeDebugPrivilege 2372 powershell.exe Token: SeDebugPrivilege 1520 powershell.exe Token: SeDebugPrivilege 4468 powershell.exe Token: SeDebugPrivilege 3704 powershell.exe Token: SeDebugPrivilege 3628 powershell.exe Token: SeDebugPrivilege 4504 powershell.exe Token: SeSystemEnvironmentPrivilege 608 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 4032 wrote to memory of 676 4032 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe 71 PID 4032 wrote to memory of 676 4032 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe 71 PID 4032 wrote to memory of 676 4032 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe 71 PID 3048 wrote to memory of 2372 3048 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe 77 PID 3048 wrote to memory of 2372 3048 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe 77 PID 3048 wrote to memory of 2372 3048 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe 77 PID 3048 wrote to memory of 1828 3048 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe 79 PID 3048 wrote to memory of 1828 3048 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe 79 PID 1828 wrote to memory of 1292 1828 cmd.exe 80 PID 1828 wrote to memory of 1292 1828 cmd.exe 80 PID 3048 wrote to memory of 1520 3048 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe 81 PID 3048 wrote to memory of 1520 3048 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe 81 PID 3048 wrote to memory of 1520 3048 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe 81 PID 3048 wrote to memory of 4468 3048 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe 83 PID 3048 wrote to memory of 4468 3048 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe 83 PID 3048 wrote to memory of 4468 3048 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe 83 PID 3048 wrote to memory of 608 3048 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe 85 PID 3048 wrote to memory of 608 3048 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe 85 PID 3048 wrote to memory of 608 3048 27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe 85 PID 608 wrote to memory of 3704 608 csrss.exe 86 PID 608 wrote to memory of 3704 608 csrss.exe 86 PID 608 wrote to memory of 3704 608 csrss.exe 86 PID 608 wrote to memory of 3628 608 csrss.exe 92 PID 608 wrote to memory of 3628 608 csrss.exe 92 PID 608 wrote to memory of 3628 608 csrss.exe 92 PID 608 wrote to memory of 4504 608 csrss.exe 95 PID 608 wrote to memory of 4504 608 csrss.exe 95 PID 608 wrote to memory of 4504 608 csrss.exe 95 PID 608 wrote to memory of 2728 608 csrss.exe 97 PID 608 wrote to memory of 2728 608 csrss.exe 97 -
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\27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe"C:\Users\Admin\AppData\Local\Temp\27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4032 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:676
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C:\Users\Admin\AppData\Local\Temp\27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe"C:\Users\Admin\AppData\Local\Temp\27e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804.exe"2⤵
- Windows security bypass
- Windows security modification
- Adds Run key to start application
- Checks for VirtualBox DLLs, possible anti-VM trick
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3048 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2372
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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:1828 -
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
- Modifies data under HKEY_USERS
PID:1292
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1520
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4468
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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.
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:608 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3704
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:2948
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3240
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3628
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4504
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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:2728
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:1252
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
1B
MD5c4ca4238a0b923820dcc509a6f75849b
SHA1356a192b7913b04c54574d18c28d46e6395428ab
SHA2566b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
SHA5124dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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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
MD5db01a2c1c7e70b2b038edf8ad5ad9826
SHA1540217c647a73bad8d8a79e3a0f3998b5abd199b
SHA256413da361d77055dae7007f82b58b366c8783aa72e0b8fbe41519b940c253b38d
SHA512c76ff57fcee5cdf9fdf3116d4e1dc0cf106867bf19ab474b763e242acf5dca9a7509cb837c35e130c3e056636b4e8a4e135512a978bcd3dd641e20f5bf76c3d6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD53be3f0b68bc20558d721bf3e983b274a
SHA1831d7aeff8b5ae3beed31e9684a676de5cc5651b
SHA256c0dbc7888bb4c13e1c93ddc872141356e63786275a2a7affd574fa4ab2b8f618
SHA512908be6118482621be2ff1f1daf991c9344a43f50445d4a7931b6446ff8648ee6e947d258b6a098d393c321f5efef90dfadbd3edbea8519abfef3b6b20bf6178c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD5d7bd9933a2ac6c095469944d0cb6667c
SHA141d3b6f9355616c5e71ad9cd369d41a50d88d5ac
SHA256594e202afa8119e0177e8adc2846b7d28b992eade0f2a9b125861c6d01cc1eff
SHA5121a2c0731f46c325102741889807af6bed30941aca9ddebd13cdc8ab97e7459db632c66bebfd9b0d9665f6c65516e21e386b1a37983d200758d486037e1b1d9cd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD5576dbe2fad74f075ec5d11bbe5060924
SHA1589d15df4c501d3f4f5fbb6d7ac178add80252da
SHA2564e1c1dd0bc2838de9e69ad7cc2f2a36a8180b99fe25455afe92c57f2954d7060
SHA5126c22827653dfce3f9735350074fe06c595aa86f48eb750260a3fb5d990547661d78ff0269e0af81e16ca60b201346405d44093d7a2a1cdc9a6ab967c4f78bc39
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD58aae68387ee45bbbe61762b2c0de8e1d
SHA14b424d9ee1c4eb66177d0232b3040062ab515667
SHA256e6d42c37fe1943d0818e9c678fa80c7493ccc6b1105e551d1edb9fa7476c89b2
SHA512a952990b0ea9339effb2d294d1579e4b787aa7cc1443e43f810d8757f9bf47d5ff54f9838e8567ec9dacc87e947c7fa1d44bfd7ebe320a7dda6024ddea26f106
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD5963fb49dbb0ca787da164506359b0e16
SHA1c33c244384c5d34f46c7ffb900042908e7a6194c
SHA256c7a9d4d4fd8bee4f96b791d5974dc8438d989616a736e23dacfed49b6686b5d6
SHA512bbd014578ebe12b67ff669773dbe12e70a6fb93e4e42628d555a16712bb5182a30c2621914173fb99bd7a67aed6214266865bd6f885f91cebfeae6d58b0524a1
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Filesize
4.1MB
MD518cee0b0438bb7172989f234ff1471ed
SHA15f315fafe8bb8700b0eafcd8a4b4eaa95e1d43c9
SHA25627e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804
SHA5122d7a71b5d8663553cb3c21ac02c66bb7bb8971832507ccf1e6fde16554423647639fbf71e14f909bc432638c79831af25251858ed72e5fc48042df60618a164b
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Filesize
4.1MB
MD518cee0b0438bb7172989f234ff1471ed
SHA15f315fafe8bb8700b0eafcd8a4b4eaa95e1d43c9
SHA25627e209d0aa5bef630cc2fcef6c0773f83b92419539c2c0c31f87875e33572804
SHA5122d7a71b5d8663553cb3c21ac02c66bb7bb8971832507ccf1e6fde16554423647639fbf71e14f909bc432638c79831af25251858ed72e5fc48042df60618a164b