Analysis
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max time kernel
149s -
max time network
139s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
20-05-2024 04:15
Static task
static1
Behavioral task
behavioral1
Sample
8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe
Resource
win10v2004-20240508-en
General
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Target
8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe
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Size
4.1MB
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MD5
687908c7c25af2020a425fcafac226e2
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SHA1
2e52ab075fd5b0cdad1b5d66aaf15b9705cb4d3f
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SHA256
8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8
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SHA512
1cee297497e8869e263cd6726f1ec8361ca5e3bffdbf5a806bb11b6eb3303d51ecd555e3092fa2eb86bce8444efed968d2d6a688440e4ef105ab37e067737ee2
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SSDEEP
98304:eQAQcsa3GhfWYEvpb4LdECaqY+VYhFzXw/u5g9cAd9nAJ:eQAQcDPYxuCJe7X5ghfG
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/2536-2-0x0000000004BA0000-0x000000000548B000-memory.dmp family_glupteba behavioral2/memory/2536-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2536-99-0x0000000004BA0000-0x000000000548B000-memory.dmp family_glupteba behavioral2/memory/2536-97-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2536-147-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2060-146-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/1060-201-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/1060-213-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/1060-216-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/1060-222-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/1060-226-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/1060-229-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/1060-232-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/1060-238-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/1060-242-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/1060-245-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/1060-248-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/1060-252-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/1060-258-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 3140 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 1060 csrss.exe 2248 injector.exe 2260 windefender.exe 4052 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/2260-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2260-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4052-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4052-217-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4052-224-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe Set value (str) \REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\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.
Processes:
csrss.exedescription ioc process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process 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 File created 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.
Processes:
8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe -
Drops file in Windows directory 4 IoCs
Processes:
8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.execsrss.exedescription ioc process File opened for modification C:\Windows\rss 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe File created C:\Windows\rss\csrss.exe 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid process 2916 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid process 3664 powershell.exe 2996 powershell.exe 4080 powershell.exe 576 powershell.exe 1868 powershell.exe 2832 powershell.exe 1640 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 4092 schtasks.exe 928 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exepowershell.exepowershell.exewindefender.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time" 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time" 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2771 = "Omsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1021 = "Bangladesh Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2061 = "North Korea Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\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\2a\52C64B7E\@tzres.dll,-841 = "Argentina Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-621 = "Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1472 = "Magadan Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2942 = "Sao Tome Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-352 = "FLE Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-31 = "Mid-Atlantic Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-432 = "Iran Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root 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\2a\52C64B7E\@tzres.dll,-12 = "Azores Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs 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\2a\52C64B7E\@tzres.dll,-721 = "Central Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time" 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-122 = "SA Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-591 = "Malay Peninsula Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs 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\2a\52C64B7E\@tzres.dll,-1872 = "Russia TZ 7 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-791 = "SA Western Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time" 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.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\Disallowed\Certificates powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exepowershell.exe8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 3664 powershell.exe 3664 powershell.exe 2536 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe 2536 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe 2996 powershell.exe 2996 powershell.exe 2060 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe 2060 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe 2060 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe 2060 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe 2060 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe 2060 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe 2060 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe 2060 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe 2060 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe 2060 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe 4080 powershell.exe 4080 powershell.exe 576 powershell.exe 576 powershell.exe 1868 powershell.exe 1868 powershell.exe 2832 powershell.exe 2832 powershell.exe 1640 powershell.exe 1640 powershell.exe 2248 injector.exe 2248 injector.exe 2248 injector.exe 2248 injector.exe 2248 injector.exe 2248 injector.exe 2248 injector.exe 2248 injector.exe 1060 csrss.exe 1060 csrss.exe 2248 injector.exe 2248 injector.exe 2248 injector.exe 2248 injector.exe 1060 csrss.exe 1060 csrss.exe 2248 injector.exe 2248 injector.exe 2248 injector.exe 2248 injector.exe 1060 csrss.exe 1060 csrss.exe 2248 injector.exe 2248 injector.exe 2248 injector.exe 2248 injector.exe 2248 injector.exe 2248 injector.exe 2248 injector.exe 2248 injector.exe 2248 injector.exe 2248 injector.exe 2248 injector.exe 2248 injector.exe 2248 injector.exe 2248 injector.exe 2248 injector.exe 2248 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 3664 powershell.exe Token: SeDebugPrivilege 2536 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe Token: SeImpersonatePrivilege 2536 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe Token: SeDebugPrivilege 2996 powershell.exe Token: SeDebugPrivilege 4080 powershell.exe Token: SeDebugPrivilege 576 powershell.exe Token: SeDebugPrivilege 1868 powershell.exe Token: SeDebugPrivilege 2832 powershell.exe Token: SeDebugPrivilege 1640 powershell.exe Token: SeSystemEnvironmentPrivilege 1060 csrss.exe Token: SeSecurityPrivilege 2916 sc.exe Token: SeSecurityPrivilege 2916 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 2536 wrote to memory of 3664 2536 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe powershell.exe PID 2536 wrote to memory of 3664 2536 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe powershell.exe PID 2536 wrote to memory of 3664 2536 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe powershell.exe PID 2060 wrote to memory of 2996 2060 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe powershell.exe PID 2060 wrote to memory of 2996 2060 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe powershell.exe PID 2060 wrote to memory of 2996 2060 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe powershell.exe PID 2060 wrote to memory of 3444 2060 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe cmd.exe PID 2060 wrote to memory of 3444 2060 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe cmd.exe PID 3444 wrote to memory of 3140 3444 cmd.exe netsh.exe PID 3444 wrote to memory of 3140 3444 cmd.exe netsh.exe PID 2060 wrote to memory of 4080 2060 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe powershell.exe PID 2060 wrote to memory of 4080 2060 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe powershell.exe PID 2060 wrote to memory of 4080 2060 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe powershell.exe PID 2060 wrote to memory of 576 2060 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe powershell.exe PID 2060 wrote to memory of 576 2060 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe powershell.exe PID 2060 wrote to memory of 576 2060 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe powershell.exe PID 2060 wrote to memory of 1060 2060 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe csrss.exe PID 2060 wrote to memory of 1060 2060 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe csrss.exe PID 2060 wrote to memory of 1060 2060 8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe csrss.exe PID 1060 wrote to memory of 1868 1060 csrss.exe powershell.exe PID 1060 wrote to memory of 1868 1060 csrss.exe powershell.exe PID 1060 wrote to memory of 1868 1060 csrss.exe powershell.exe PID 1060 wrote to memory of 2832 1060 csrss.exe powershell.exe PID 1060 wrote to memory of 2832 1060 csrss.exe powershell.exe PID 1060 wrote to memory of 2832 1060 csrss.exe powershell.exe PID 1060 wrote to memory of 1640 1060 csrss.exe powershell.exe PID 1060 wrote to memory of 1640 1060 csrss.exe powershell.exe PID 1060 wrote to memory of 1640 1060 csrss.exe powershell.exe PID 1060 wrote to memory of 2248 1060 csrss.exe injector.exe PID 1060 wrote to memory of 2248 1060 csrss.exe injector.exe PID 2260 wrote to memory of 924 2260 windefender.exe cmd.exe PID 2260 wrote to memory of 924 2260 windefender.exe cmd.exe PID 2260 wrote to memory of 924 2260 windefender.exe cmd.exe PID 924 wrote to memory of 2916 924 cmd.exe sc.exe PID 924 wrote to memory of 2916 924 cmd.exe sc.exe PID 924 wrote to memory of 2916 924 cmd.exe sc.exe -
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\8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe"C:\Users\Admin\AppData\Local\Temp\8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2536 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3664 -
C:\Users\Admin\AppData\Local\Temp\8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe"C:\Users\Admin\AppData\Local\Temp\8d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8.exe"2⤵
- 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:2060 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2996 -
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:3444 -
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
PID:3140 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4080 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:576 -
C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- Manipulates WinMonFS driver.
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1060 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1868 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:4092 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1188
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2832 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1640 -
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:2248 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:928 -
C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2260 -
C:\Windows\SysWOW64\cmd.execmd.exe /C sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)5⤵
- Suspicious use of WriteProcessMemory
PID:924 -
C:\Windows\SysWOW64\sc.exesc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)6⤵
- Launches sc.exe
- Suspicious use of AdjustPrivilegeToken
PID:2916
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4052
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
1Privilege Escalation
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
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
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD570032c6b3f1dddcb3447f9890aca17c4
SHA123447f87cdafff28aa1e6423842e2a157f663277
SHA2569df8e8d0eb8120f9545c7e7869ec4700832e8245de16e0e6dc1a3b1e7664d17a
SHA51248116a63b683eab2e5590791f587e6e7620e7dd234f0211e4fa918b723a3248210f975d2e2d33d271b41a9e42d2d742e63347ca6f7e20524e5e4636665981534
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58e3e372df0e2f9a89b4bd259ea990127
SHA15f36676b2da10e2fbd17b5bc893edae2b56bffd8
SHA2565587d2c167a8a84c233b4038dd5bfd3eba9f7b353b97dc7628c55f50bb9bbdcc
SHA5128b0943a7f40f50488589cfad04f667ec02aa1a0e8125071ebaf7869d1ffd94e4713f1bf752991af55704e3457c0ad98a6419f5bc34fd7ba5d7c4bc7bc1cf5815
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5cd0e898d032059677da31c7335ff2d11
SHA1368323e2a12497236a886fc3860e862dc304132f
SHA2568e886ba79a71a5edf076baadf796b3898cac5b806b078f7dde33f39f80b09697
SHA512d0588332510e06b6c4546a0d76a76e2ef6a18337c33eacd3e43ff4bbba502e06c1559ed3003617c8ad3e1517c9a876868ed81a54d328fa2a06cd7bc9863c3db0
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52004b2de4ca213e3e13f9da3cdf93a35
SHA12c7d0b55a7524d3453a507e0cdeef6d2294c7bda
SHA256e07cbceca453d38e7631c7d3d461a1782b7fa9a7878c2bb80ca04503db364faa
SHA512162aa054bd1e5c8b10640b918d02c2e5224ddf93bef2f3aa017869e5cbb0bc8e04cca537193f886562d1a418e1b1484f50bfd54aee47239794c4b2c0c5d40bed
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54d5895cd64b9a4b7da6f5fb1550091bf
SHA11c7b457a78d0385ed2fc2590e00e466f68de4c21
SHA2564dc7d0f1d0340f937a689a744b780d61a2695f132476efa1091f4994f574f3d2
SHA5124a3b379cf34401d681354169a1cde7a522d04812e8c87af59971e5b5351649942147b904bd9066c81519ec605a486c15bcb90d2483965f642004eaf90ce5b305
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Filesize
4.1MB
MD5687908c7c25af2020a425fcafac226e2
SHA12e52ab075fd5b0cdad1b5d66aaf15b9705cb4d3f
SHA2568d33ecf326d6bcf6406ad6642a9287cfe3664beb875c8466555301eb7073b1b8
SHA5121cee297497e8869e263cd6726f1ec8361ca5e3bffdbf5a806bb11b6eb3303d51ecd555e3092fa2eb86bce8444efed968d2d6a688440e4ef105ab37e067737ee2
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec