Analysis
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max time kernel
150s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 11:32
Static task
static1
Behavioral task
behavioral1
Sample
03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe
Resource
win10v2004-20240426-en
General
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Target
03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe
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Size
4.1MB
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MD5
cded6a2fb9d5a03f48f73eeba7beeca2
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SHA1
f54418e33af7978951e7fa3c8f249b5d6cb0fd5e
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SHA256
03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a
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SHA512
feb1cf6d32435964239270ce7ad5a75663af185af1b16142a623a029a945b0fdb518e8a83ccc9fed13f3f53390e08e34194fb684a3afa8b7c29c0b1053fd8e70
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SSDEEP
98304:NH+PiUxpnK5pcCD6RLXH4DRMjOnEmJ5mWZ44js55cU5wvI2J:NH+PiSfw6Rz4ejOEAZ44S5J5ww2J
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/4116-2-0x0000000004540000-0x0000000004E2B000-memory.dmp family_glupteba behavioral2/memory/4116-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4116-53-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4116-54-0x0000000004540000-0x0000000004E2B000-memory.dmp family_glupteba behavioral2/memory/4116-51-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/656-125-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3316-204-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3316-214-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3316-216-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3316-218-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3316-220-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3316-222-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3316-224-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3316-226-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3316-228-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3316-230-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3316-232-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3316-234-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3316-236-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 1916 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 3316 csrss.exe 3376 injector.exe 124 windefender.exe 5080 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x000200000002aa1d-207.dat upx behavioral2/memory/124-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5080-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/124-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5080-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5080-219-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1696768468-2170909707-4198977321-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe Set value (str) \REGISTRY\USER\S-1-5-21-1696768468-2170909707-4198977321-1000\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\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
Processes:
03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe -
Drops file in Windows directory 4 IoCs
Processes:
03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe File created C:\Windows\rss\csrss.exe 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.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 4716 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 2300 powershell.exe 2488 powershell.exe 2584 powershell.exe 2676 powershell.exe 4844 powershell.exe 1824 powershell.exe 4804 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 2296 schtasks.exe 244 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
windefender.exe03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-92 = "Pacific SA Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time" 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2341 = "Haiti Daylight Time" windefender.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\@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates 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,-2492 = "Aus Central W. Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-981 = "Kamchatka Daylight 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,-662 = "Cen. Australia Standard Time" 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time" 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2871 = "Magallanes Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1932 = "Russia TZ 11 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time" 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1722 = "Libya Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs 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,-449 = "Azerbaijan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-282 = "Central Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\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\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time" 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs 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,-81 = "Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-162 = "Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-231 = "Hawaiian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-335 = "Jordan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1721 = "Libya Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time" 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-52 = "Greenland 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" 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-461 = "Afghanistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1972 = "Belarus Standard Time" windefender.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,-2142 = "Transbaikal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs 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,-1411 = "Syria 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" 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.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,-214 = "Pacific Daylight Time (Mexico)" 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exepowershell.exe03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 4804 powershell.exe 4804 powershell.exe 4116 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe 4116 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe 2300 powershell.exe 2300 powershell.exe 656 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe 656 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe 656 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe 656 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe 656 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe 656 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe 656 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe 656 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe 656 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe 656 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe 2488 powershell.exe 2488 powershell.exe 2584 powershell.exe 2584 powershell.exe 2676 powershell.exe 2676 powershell.exe 4844 powershell.exe 4844 powershell.exe 1824 powershell.exe 1824 powershell.exe 3376 injector.exe 3376 injector.exe 3376 injector.exe 3376 injector.exe 3376 injector.exe 3376 injector.exe 3316 csrss.exe 3316 csrss.exe 3376 injector.exe 3376 injector.exe 3376 injector.exe 3376 injector.exe 3376 injector.exe 3376 injector.exe 3316 csrss.exe 3316 csrss.exe 3376 injector.exe 3376 injector.exe 3376 injector.exe 3376 injector.exe 3316 csrss.exe 3316 csrss.exe 3376 injector.exe 3376 injector.exe 3376 injector.exe 3376 injector.exe 3376 injector.exe 3376 injector.exe 3376 injector.exe 3376 injector.exe 3376 injector.exe 3376 injector.exe 3376 injector.exe 3376 injector.exe 3376 injector.exe 3376 injector.exe 3376 injector.exe 3376 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 4804 powershell.exe Token: SeDebugPrivilege 4116 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe Token: SeImpersonatePrivilege 4116 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe Token: SeDebugPrivilege 2300 powershell.exe Token: SeDebugPrivilege 2488 powershell.exe Token: SeDebugPrivilege 2584 powershell.exe Token: SeDebugPrivilege 2676 powershell.exe Token: SeDebugPrivilege 4844 powershell.exe Token: SeDebugPrivilege 1824 powershell.exe Token: SeSystemEnvironmentPrivilege 3316 csrss.exe Token: SeSecurityPrivilege 4716 sc.exe Token: SeSecurityPrivilege 4716 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 4116 wrote to memory of 4804 4116 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe 81 PID 4116 wrote to memory of 4804 4116 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe 81 PID 4116 wrote to memory of 4804 4116 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe 81 PID 656 wrote to memory of 2300 656 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe 86 PID 656 wrote to memory of 2300 656 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe 86 PID 656 wrote to memory of 2300 656 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe 86 PID 656 wrote to memory of 2524 656 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe 88 PID 656 wrote to memory of 2524 656 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe 88 PID 2524 wrote to memory of 1916 2524 cmd.exe 90 PID 2524 wrote to memory of 1916 2524 cmd.exe 90 PID 656 wrote to memory of 2488 656 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe 91 PID 656 wrote to memory of 2488 656 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe 91 PID 656 wrote to memory of 2488 656 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe 91 PID 656 wrote to memory of 2584 656 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe 93 PID 656 wrote to memory of 2584 656 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe 93 PID 656 wrote to memory of 2584 656 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe 93 PID 656 wrote to memory of 3316 656 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe 95 PID 656 wrote to memory of 3316 656 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe 95 PID 656 wrote to memory of 3316 656 03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe 95 PID 3316 wrote to memory of 2676 3316 csrss.exe 96 PID 3316 wrote to memory of 2676 3316 csrss.exe 96 PID 3316 wrote to memory of 2676 3316 csrss.exe 96 PID 3316 wrote to memory of 4844 3316 csrss.exe 102 PID 3316 wrote to memory of 4844 3316 csrss.exe 102 PID 3316 wrote to memory of 4844 3316 csrss.exe 102 PID 3316 wrote to memory of 1824 3316 csrss.exe 104 PID 3316 wrote to memory of 1824 3316 csrss.exe 104 PID 3316 wrote to memory of 1824 3316 csrss.exe 104 PID 3316 wrote to memory of 3376 3316 csrss.exe 106 PID 3316 wrote to memory of 3376 3316 csrss.exe 106 PID 124 wrote to memory of 4832 124 windefender.exe 112 PID 124 wrote to memory of 4832 124 windefender.exe 112 PID 124 wrote to memory of 4832 124 windefender.exe 112 PID 4832 wrote to memory of 4716 4832 cmd.exe 113 PID 4832 wrote to memory of 4716 4832 cmd.exe 113 PID 4832 wrote to memory of 4716 4832 cmd.exe 113 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe"C:\Users\Admin\AppData\Local\Temp\03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4116 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4804
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C:\Users\Admin\AppData\Local\Temp\03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.exe"C:\Users\Admin\AppData\Local\Temp\03f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a.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:656 -
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:2300
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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:2524 -
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:1916
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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:2488
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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:2584
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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:3316 -
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:2676
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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:2296
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:400
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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:4844
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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:1824
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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:3376
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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:244
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:124 -
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:4832 -
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:4716
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:5080
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
MD58c95dfaa70bfa2d5f068dca682ad4e15
SHA12c77b5db8c80ee7cd1738a5f6628ab85d866d698
SHA2566230ab34a3ccc31b9b893062c054ce24c217c038d8ae6800d7d502e389bc77d5
SHA51243c2898f82786bf2d588ad838590e97a7052b2cb81f1880dff41af547ab81e882d9a11c0961541cb714dfd64fb92b046f42196fd7973a3c4cd11a2f3f83ba628
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD598cf93ab1fb5dc52c20ebf8a52f495de
SHA154837210fcf22796126a586aed61b117a2f5efc4
SHA25633a887475030a5d293ce0a505d29c26f5ea52e9b73ec640dad26b0a42363eb43
SHA5127afcc929098fa451153419889ac5480c80c4716f0b3f770d56a7699ffaf271834a1dc011cee05040a9d1ac89dac1f73ad1c1ebcc402bafe20d9855e04bf9014e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD569c6019a48eb78ce3583738b994f0310
SHA1e031b2566134308138ec36bfc90825c3df775698
SHA256a12583dc5fbb3866901b1b261109d3526f67450bdef355271584575b928eb871
SHA51280b489ee0e1ff2660e03f23f0f25a66bf324d0f093961b6aa164d82ea27612053f47b5135951be15450b6bf121b424e7852e5f813fb16b857e6e37f88ec03ca3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57b4e7a4df09ad87078cde87cb25c9729
SHA1c9016b6e07a673b222d6dcf2040efc8ed04ff7fc
SHA2565c9c2639eaac1f9c0f037cb347cce18bf2233bee6a4336b650e494c150767515
SHA51229ae6dd75695df19f8ce0db665e5f18c54fe76731dd0edf2ebf75abf3b8b876f87cd7b9f772a610a5e10dbc15f90229147ec47f190a4636f37f4b2eb04774ee3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c9d5c0f62aa803ffa8a2de71898a225a
SHA1c9bad3c73b0781c167ea122014f27431b376ced1
SHA256495cbd3b9b7935b4206f210cf75c6531bb762dd696e3f79477ef34d93549b94e
SHA512a9d4659748987807cb48e02b0fd0e19861548124923f001af54a5fa7d82d52bdf1da12e028f03bf2015004a9a878280ab49f7370daf5e75533acff9267c216fc
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Filesize
4.1MB
MD5cded6a2fb9d5a03f48f73eeba7beeca2
SHA1f54418e33af7978951e7fa3c8f249b5d6cb0fd5e
SHA25603f63f23963085e7ea71797524872545c214415aa75278187b6b43574f73224a
SHA512feb1cf6d32435964239270ce7ad5a75663af185af1b16142a623a029a945b0fdb518e8a83ccc9fed13f3f53390e08e34194fb684a3afa8b7c29c0b1053fd8e70
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec