Analysis
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max time kernel
150s -
max time network
156s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
17-05-2024 09:48
Static task
static1
Behavioral task
behavioral1
Sample
bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe
Resource
win10v2004-20240508-en
General
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Target
bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe
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Size
4.1MB
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MD5
d1b7976dbde84ae067c478c0c1842208
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SHA1
36e5deacdb886e26b42701efac512a4419c8b908
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SHA256
bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157
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SHA512
166d5fb00327c1586fbafd563bb0c851a30d05f0dba10bfb0236789f59a39feeba6b696b0a66f1a830a3ec1305a2071fa40a40644cd3d5a2f296b97936087c10
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SSDEEP
98304:shY2qRRjR1paGoDMO/b2fpl9vUYBzPUd5cvaqxgKnFtiah:yYlRLXY4O+pXvrLaqWucU
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/2920-2-0x0000000004D70000-0x000000000565B000-memory.dmp family_glupteba behavioral2/memory/2920-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2920-23-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/2920-53-0x0000000004D70000-0x000000000565B000-memory.dmp family_glupteba behavioral2/memory/2920-54-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/2920-55-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2500-77-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/2500-124-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/2500-129-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/424-197-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/424-205-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/424-216-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/424-219-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/424-222-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/424-225-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/424-228-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/424-231-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/424-234-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/424-237-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 4076 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 424 csrss.exe 4004 injector.exe 3188 windefender.exe 8 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/3188-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/8-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3188-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/8-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/8-224-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1672260578-815027929-964132517-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe Set value (str) \REGISTRY\USER\S-1-5-21-1672260578-815027929-964132517-1000\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 opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
Processes:
bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe -
Drops file in Windows directory 4 IoCs
Processes:
bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.execsrss.exedescription ioc process File opened for modification C:\Windows\rss bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe File created C:\Windows\rss\csrss.exe bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.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 2296 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid process 3448 powershell.exe 880 powershell.exe 1388 powershell.exe 888 powershell.exe 1880 powershell.exe 4112 powershell.exe 2836 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 1940 schtasks.exe 3752 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exepowershell.exewindefender.exepowershell.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,-1831 = "Russia TZ 2 Daylight Time" bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-292 = "Central European Standard Time" windefender.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,-51 = "Greenland Daylight Time" bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 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\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs 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\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-751 = "Tonga Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time" bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1862 = "Russia TZ 6 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-632 = "Tokyo Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.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,-72 = "Newfoundland Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-412 = "E. Africa Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs 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,-562 = "SE Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time" bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2752 = "Tomsk Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-152 = "Central America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-792 = "SA Western Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-172 = "Central Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-252 = "Dateline Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1472 = "Magadan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2792 = "Novosibirsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time" bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exebf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exepowershell.exebf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 888 powershell.exe 888 powershell.exe 2920 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe 2920 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe 1880 powershell.exe 1880 powershell.exe 2500 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe 2500 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe 2500 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe 2500 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe 2500 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe 2500 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe 2500 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe 2500 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe 2500 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe 2500 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe 4112 powershell.exe 4112 powershell.exe 2836 powershell.exe 2836 powershell.exe 3448 powershell.exe 3448 powershell.exe 880 powershell.exe 880 powershell.exe 1388 powershell.exe 1388 powershell.exe 4004 injector.exe 4004 injector.exe 4004 injector.exe 4004 injector.exe 4004 injector.exe 4004 injector.exe 424 csrss.exe 424 csrss.exe 4004 injector.exe 4004 injector.exe 4004 injector.exe 4004 injector.exe 4004 injector.exe 4004 injector.exe 424 csrss.exe 424 csrss.exe 4004 injector.exe 4004 injector.exe 4004 injector.exe 4004 injector.exe 4004 injector.exe 4004 injector.exe 4004 injector.exe 4004 injector.exe 4004 injector.exe 4004 injector.exe 4004 injector.exe 4004 injector.exe 424 csrss.exe 424 csrss.exe 4004 injector.exe 4004 injector.exe 4004 injector.exe 4004 injector.exe 4004 injector.exe 4004 injector.exe 4004 injector.exe 4004 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exebf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 888 powershell.exe Token: SeDebugPrivilege 2920 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe Token: SeImpersonatePrivilege 2920 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe Token: SeDebugPrivilege 1880 powershell.exe Token: SeDebugPrivilege 4112 powershell.exe Token: SeDebugPrivilege 2836 powershell.exe Token: SeDebugPrivilege 3448 powershell.exe Token: SeDebugPrivilege 880 powershell.exe Token: SeDebugPrivilege 1388 powershell.exe Token: SeSystemEnvironmentPrivilege 424 csrss.exe Token: SeSecurityPrivilege 2296 sc.exe Token: SeSecurityPrivilege 2296 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exebf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 2920 wrote to memory of 888 2920 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe powershell.exe PID 2920 wrote to memory of 888 2920 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe powershell.exe PID 2920 wrote to memory of 888 2920 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe powershell.exe PID 2500 wrote to memory of 1880 2500 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe powershell.exe PID 2500 wrote to memory of 1880 2500 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe powershell.exe PID 2500 wrote to memory of 1880 2500 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe powershell.exe PID 2500 wrote to memory of 2548 2500 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe cmd.exe PID 2500 wrote to memory of 2548 2500 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe cmd.exe PID 2548 wrote to memory of 4076 2548 cmd.exe netsh.exe PID 2548 wrote to memory of 4076 2548 cmd.exe netsh.exe PID 2500 wrote to memory of 4112 2500 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe powershell.exe PID 2500 wrote to memory of 4112 2500 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe powershell.exe PID 2500 wrote to memory of 4112 2500 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe powershell.exe PID 2500 wrote to memory of 2836 2500 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe powershell.exe PID 2500 wrote to memory of 2836 2500 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe powershell.exe PID 2500 wrote to memory of 2836 2500 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe powershell.exe PID 2500 wrote to memory of 424 2500 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe csrss.exe PID 2500 wrote to memory of 424 2500 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe csrss.exe PID 2500 wrote to memory of 424 2500 bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe csrss.exe PID 424 wrote to memory of 3448 424 csrss.exe powershell.exe PID 424 wrote to memory of 3448 424 csrss.exe powershell.exe PID 424 wrote to memory of 3448 424 csrss.exe powershell.exe PID 424 wrote to memory of 880 424 csrss.exe powershell.exe PID 424 wrote to memory of 880 424 csrss.exe powershell.exe PID 424 wrote to memory of 880 424 csrss.exe powershell.exe PID 424 wrote to memory of 1388 424 csrss.exe powershell.exe PID 424 wrote to memory of 1388 424 csrss.exe powershell.exe PID 424 wrote to memory of 1388 424 csrss.exe powershell.exe PID 424 wrote to memory of 4004 424 csrss.exe injector.exe PID 424 wrote to memory of 4004 424 csrss.exe injector.exe PID 3188 wrote to memory of 2144 3188 windefender.exe cmd.exe PID 3188 wrote to memory of 2144 3188 windefender.exe cmd.exe PID 3188 wrote to memory of 2144 3188 windefender.exe cmd.exe PID 2144 wrote to memory of 2296 2144 cmd.exe sc.exe PID 2144 wrote to memory of 2296 2144 cmd.exe sc.exe PID 2144 wrote to memory of 2296 2144 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\bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe"C:\Users\Admin\AppData\Local\Temp\bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2920 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:888 -
C:\Users\Admin\AppData\Local\Temp\bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.exe"C:\Users\Admin\AppData\Local\Temp\bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157.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:2500 -
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:1880 -
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:2548 -
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:4076 -
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:4112 -
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:2836 -
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:424 -
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:3448 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:3752 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3140
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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:880 -
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:1388 -
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:4004 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:1940 -
C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3188 -
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:2144 -
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:2296
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:8
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
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD542e4c9204fcb0f2e0322ce9c74102101
SHA1d0c051940f2a4026398189e6a891d689c335156e
SHA256402077e218724fddd719b8b7f129d29a3bebdbc8a723f5a081386636d917ff85
SHA51210abec96928e87b9f0b70605b57c5001c57bb92fd1dbd188f3e030121332603dfde7963da04a60b37caaa4a30288b7de5c4851dc4e9914be38b58a54d254d5e0
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57e444a80fbab26670c3235c27e2d38c0
SHA1be0f42522b506c3a2580ca144574b903d3144cea
SHA25640c2729588783aa818547a6e6f16e20fac186f51a5669ee4e5bba438a4237ea2
SHA51220cd2011d7cfc9be42e841544f0f230e81ae06521cbb6aba52791883c07c34a89a804c5e5af713dd28ac9b01eaa08afd765ba8504ae37bac411d90c5f8705048
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58a80e0fac227c885bd86d66204bfca8c
SHA1f62bb12334eabbda18daa851b2ef41d2941fa0da
SHA2569ffc7a4374b4b287aad0f229bc47d7361b5b8c166e76f4086d4b8607ad2792c8
SHA5128a0f864eb13df6c973f3b9b8881924e18cf89a1f1ae744241a2d30de2310cacf03a820ef10339d64274c961be513e01380f15bea0d066540fb7e11cc21b597fb
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD598e378a219917ed69fc72f3ebc0a8285
SHA1326c788f8588eaa780e136bbb6f74be9a61a15cc
SHA256fba40823ecbf2cfe132042a1ab764fac14ffd69d17f7ed52db52712820f102b7
SHA512eca2db3e9b0096751539aac811ab9864c04a10bcb8a4ce5b0d6c764dc4a4fe711c4a9954b163945ca6603af64c3299933de813a5c7f0b87df5eb3619a99b3ea0
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD542ab1ff4cfa4dcc1cc559192b5ac9ae0
SHA138e872c845b78e16252b147fc0bb4683f09dc898
SHA256038cde1f6e445a786188d13e772a21b404e46b0af1b41c4e125356559c70a951
SHA512fc5321ca86bdab8c53543585a56a6bb7b2647cf2bcb9337e989ad319f1a4fe9e4af09ae88cf803914ad1d2dcfde39f38a62d3e1116a08279e64b58445a1d5f8b
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Filesize
4.1MB
MD5d1b7976dbde84ae067c478c0c1842208
SHA136e5deacdb886e26b42701efac512a4419c8b908
SHA256bf222403825552c77826570cc73f47a1214ee301d9fe3ade8c94657810d3f157
SHA512166d5fb00327c1586fbafd563bb0c851a30d05f0dba10bfb0236789f59a39feeba6b696b0a66f1a830a3ec1305a2071fa40a40644cd3d5a2f296b97936087c10
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec