Analysis
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max time kernel
149s -
max time network
131s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 20:34
Static task
static1
Behavioral task
behavioral1
Sample
f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe
Resource
win10v2004-20240508-en
General
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Target
f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe
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Size
4.1MB
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MD5
4fa1537147b4599785bd8700b147cb1d
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SHA1
6cb3e5043cbefbbe79b0ec1bc7fea081d9190470
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SHA256
f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd
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SHA512
ad955e33bc29781fef58e19c37225c52eaf3e23dca8f1a48a52139dba6afb7cfc7de94bf78e14bf43faedd12f2260ed1e6b4b4d92cb6480b53a8c2bcc8d299d6
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SSDEEP
98304:b7sgfTqZm7fywQIpjGUn+cmloZHued8miXbTsPufBvN/:bzgmDywQg+foZ8mw6S9
Malware Config
Signatures
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Glupteba payload 20 IoCs
Processes:
resource yara_rule behavioral2/memory/2916-2-0x00000000049A0000-0x000000000528B000-memory.dmp family_glupteba behavioral2/memory/2916-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2916-53-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2916-54-0x00000000049A0000-0x000000000528B000-memory.dmp family_glupteba behavioral2/memory/2916-52-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3124-121-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3124-127-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3848-199-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3848-208-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3848-215-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3848-217-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3848-219-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3848-221-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3848-223-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3848-225-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3848-227-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3848-229-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3848-231-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3848-233-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3848-235-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 1960 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 3848 csrss.exe 3344 injector.exe 3480 windefender.exe 2444 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x000500000002a9ae-207.dat upx behavioral2/memory/3480-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2444-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3480-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2444-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2444-220-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Set value (str) \REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\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 opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe -
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:
f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe -
Drops file in Windows directory 4 IoCs
Processes:
f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.execsrss.exedescription ioc Process File created C:\Windows\rss\csrss.exe f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid Process 4860 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 3060 powershell.exe 3592 powershell.exe 1800 powershell.exe 1516 powershell.exe 2424 powershell.exe 3640 powershell.exe 3836 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 2484 schtasks.exe 4788 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exepowershell.exepowershell.exepowershell.exewindefender.exepowershell.exepowershell.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1892 = "Russia TZ 3 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1501 = "Turkey Daylight Time" windefender.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,-841 = "Argentina Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-681 = "E. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2631 = "Norfolk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.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,-982 = "Kamchatka Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-501 = "Nepal Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-722 = "Central Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-431 = "Iran Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-771 = "Montevideo Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2321 = "Sakhalin Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3142 = "South Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2391 = "Aleutian Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-911 = "Mauritius Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-71 = "Newfoundland Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs 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,-1662 = "Bahia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2572 = "Turks and Caicos Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2872 = "Magallanes Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-192 = "Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2841 = "Saratov Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2491 = "Aus Central W. Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-831 = "SA Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time" f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2162 = "Altai Standard Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exef9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exepowershell.exef9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 3060 powershell.exe 3060 powershell.exe 2916 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 2916 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 3592 powershell.exe 3592 powershell.exe 3124 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 3124 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 3124 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 3124 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 3124 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 3124 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 3124 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 3124 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 3124 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 3124 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 1800 powershell.exe 1800 powershell.exe 1516 powershell.exe 1516 powershell.exe 2424 powershell.exe 2424 powershell.exe 3640 powershell.exe 3640 powershell.exe 3836 powershell.exe 3836 powershell.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3848 csrss.exe 3848 csrss.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3848 csrss.exe 3848 csrss.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3848 csrss.exe 3848 csrss.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exef9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 3060 powershell.exe Token: SeDebugPrivilege 2916 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Token: SeImpersonatePrivilege 2916 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe Token: SeDebugPrivilege 3592 powershell.exe Token: SeDebugPrivilege 1800 powershell.exe Token: SeDebugPrivilege 1516 powershell.exe Token: SeDebugPrivilege 2424 powershell.exe Token: SeDebugPrivilege 3640 powershell.exe Token: SeDebugPrivilege 3836 powershell.exe Token: SeSystemEnvironmentPrivilege 3848 csrss.exe Token: SeSecurityPrivilege 4860 sc.exe Token: SeSecurityPrivilege 4860 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exef9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 2916 wrote to memory of 3060 2916 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 82 PID 2916 wrote to memory of 3060 2916 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 82 PID 2916 wrote to memory of 3060 2916 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 82 PID 3124 wrote to memory of 3592 3124 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 87 PID 3124 wrote to memory of 3592 3124 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 87 PID 3124 wrote to memory of 3592 3124 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 87 PID 3124 wrote to memory of 2092 3124 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 89 PID 3124 wrote to memory of 2092 3124 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 89 PID 2092 wrote to memory of 1960 2092 cmd.exe 91 PID 2092 wrote to memory of 1960 2092 cmd.exe 91 PID 3124 wrote to memory of 1800 3124 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 92 PID 3124 wrote to memory of 1800 3124 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 92 PID 3124 wrote to memory of 1800 3124 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 92 PID 3124 wrote to memory of 1516 3124 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 94 PID 3124 wrote to memory of 1516 3124 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 94 PID 3124 wrote to memory of 1516 3124 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 94 PID 3124 wrote to memory of 3848 3124 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 96 PID 3124 wrote to memory of 3848 3124 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 96 PID 3124 wrote to memory of 3848 3124 f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe 96 PID 3848 wrote to memory of 2424 3848 csrss.exe 97 PID 3848 wrote to memory of 2424 3848 csrss.exe 97 PID 3848 wrote to memory of 2424 3848 csrss.exe 97 PID 3848 wrote to memory of 3640 3848 csrss.exe 103 PID 3848 wrote to memory of 3640 3848 csrss.exe 103 PID 3848 wrote to memory of 3640 3848 csrss.exe 103 PID 3848 wrote to memory of 3836 3848 csrss.exe 105 PID 3848 wrote to memory of 3836 3848 csrss.exe 105 PID 3848 wrote to memory of 3836 3848 csrss.exe 105 PID 3848 wrote to memory of 3344 3848 csrss.exe 107 PID 3848 wrote to memory of 3344 3848 csrss.exe 107 PID 3480 wrote to memory of 1872 3480 windefender.exe 119 PID 3480 wrote to memory of 1872 3480 windefender.exe 119 PID 3480 wrote to memory of 1872 3480 windefender.exe 119 PID 1872 wrote to memory of 4860 1872 cmd.exe 120 PID 1872 wrote to memory of 4860 1872 cmd.exe 120 PID 1872 wrote to memory of 4860 1872 cmd.exe 120 -
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\f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe"C:\Users\Admin\AppData\Local\Temp\f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2916 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3060
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C:\Users\Admin\AppData\Local\Temp\f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.exe"C:\Users\Admin\AppData\Local\Temp\f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd.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:3124 -
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:3592
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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:2092 -
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:1960
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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:1800
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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:1516
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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.
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3848 -
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:2424
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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:2484
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2340
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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:3640
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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:3836
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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:3344
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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:4788
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3480 -
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:1872 -
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:4860
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2444
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
MD5aa9e3260f270fe0cf452f6b7ec56bfa9
SHA18148a6f408d653fd4793cb27980cf31d3bb3a94a
SHA256dda6a0fe2aa0ef46f6a373d474470c12cd693bf389206b4191410990d0f8403e
SHA512bba871b4e6f0bbde61b7c27b1f4667485f3d7b93b878ddbdbd08b862a4b37a4f101d89cbe61092cffacda2742fdd418da466aa3367e529bc1391164613808aa3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53a1d399ef63ae6f5e718eef0634a393c
SHA12a0bb843774546fb4fba42f2de8bb9f118608b6f
SHA2569da109f8d944343f91794ce0cdc917222fff0c2b932f671d9faa09f5aaf5f46c
SHA512b9338f76e3e6a6a8ef4605fa406329e90992985256855b4e3db1b2a0f39df065b8ff63d72c310dc28b1692c019ab4f3692cba4f6823e5fb0375d1078277afeb6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5003ecc0ca0fc9a8e7a7ac4e868a36f0f
SHA17b39d774c68e10d0488263ef6b98fe611d748bea
SHA256f0d514e359cbd369d8e26481b3ad3414c32ca41676e168fb993152bb8cfd13d8
SHA512dba4e2de1f0524b48dfbea6a8569adb9c16e03f5ea10271e3d6e96cbc468eaf7e5a5e8c90fe3433ecb2e217b73922a336b4e48c79e152a7a49a9b9674c9d3e54
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ecc397f3b6c6b261ea23eec14fa57991
SHA1272a840a520f23fa1860b760c127de19b18f7e56
SHA256e7dcf650b8921739098d111e00e1d2accf1c91cc7bb40c0f31e762d919416750
SHA512414c4d041d6dc1690e7fab489a97a0cfb171f9a69edca62054923adc6872c61a491ac74095c7f8ed9037ea76d895f5bd50a1e59d6b2bfe2c7bab217bc95c5151
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e2db1b4f183abdb2e40550d05d5a2ee4
SHA1a9325e9146fb97da258519fb3649badf888388f5
SHA2564f2c9ffa283b0ac8b6386b6ed58f4168105c068e18a323e89901b1c3ef1cdd35
SHA512a2b918a811cc1c9746b9ea6595c6be2f32e05e012d0cf20cce31a97f3de73dd1db7994d954871e8b0d2f46850334991880f2593258e72b9412099e3c106253ac
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Filesize
4.1MB
MD54fa1537147b4599785bd8700b147cb1d
SHA16cb3e5043cbefbbe79b0ec1bc7fea081d9190470
SHA256f9425c27fa4f1ca23d4357a223a206b086991b19af7b299b332fb232c64a88cd
SHA512ad955e33bc29781fef58e19c37225c52eaf3e23dca8f1a48a52139dba6afb7cfc7de94bf78e14bf43faedd12f2260ed1e6b4b4d92cb6480b53a8c2bcc8d299d6
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec