Analysis
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max time kernel
150s -
max time network
146s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
17-05-2024 07:07
Static task
static1
Behavioral task
behavioral1
Sample
bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe
Resource
win10v2004-20240508-en
General
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Target
bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe
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Size
4.1MB
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MD5
18c0f2c32548e13a4e17828be516cec7
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SHA1
134111afcd19cf832997beb1e5aceafcf1ae23d7
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SHA256
bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19
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SHA512
cbef2305415c14a759f8f3caab7c0b7a75740d37199e311006a9e86afa5f904b7006be4bb0687c10a5dcece790f71006b053a85bc3849691960e7b809d983738
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SSDEEP
98304:40IUXroYDzElV89sdV2qHm3LaKbYXl7F29tEHWEXgelgSAZWSyDiLj:jIU7SlV8K2X2AhEHFgekcM
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/4980-2-0x0000000004E30000-0x000000000571B000-memory.dmp family_glupteba behavioral2/memory/4980-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4980-52-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4980-63-0x0000000004E30000-0x000000000571B000-memory.dmp family_glupteba behavioral2/memory/4980-121-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3220-120-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/3220-126-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4144-196-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4144-206-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4144-214-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4144-217-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4144-220-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4144-223-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4144-226-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4144-229-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4144-232-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4144-235-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4144-238-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba behavioral2/memory/4144-241-0x0000000000400000-0x0000000002B0C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 3560 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 4144 csrss.exe 1856 injector.exe 3324 windefender.exe 2824 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/3324-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2824-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3324-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2824-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2824-221-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.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\"" bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.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 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 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:
bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe -
Drops file in Windows directory 4 IoCs
Processes:
bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.execsrss.exedescription ioc process File opened for modification C:\Windows\rss bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe File created C:\Windows\rss\csrss.exe bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.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 3668 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid process 2056 powershell.exe 2184 powershell.exe 2468 powershell.exe 3676 powershell.exe 3452 powershell.exe 2800 powershell.exe 2640 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 3104 schtasks.exe 4892 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.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,-372 = "Jerusalem Standard Time" bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.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,-842 = "Argentina Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-141 = "Canada Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-42 = "E. South America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time" bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-652 = "AUS Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-962 = "Paraguay Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.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,-162 = "Central Standard Time" bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.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\AutoDetect = "0" 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,-382 = "South Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time" bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3142 = "South Sudan Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time" bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2371 = "Easter Island Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1721 = "Libya Daylight Time" windefender.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\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2001 = "Cabo Verde Daylight 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" bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time" bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2572 = "Turks and Caicos Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-871 = "Pakistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-671 = "AUS Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-171 = "Central Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-232 = "Hawaiian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-492 = "India Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-752 = "Tonga Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-11 = "Azores 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" bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exebcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exepowershell.exebcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 2056 powershell.exe 2056 powershell.exe 4980 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe 4980 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe 2184 powershell.exe 2184 powershell.exe 3220 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe 3220 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe 3220 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe 3220 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe 3220 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe 3220 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe 3220 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe 3220 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe 3220 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe 3220 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe 2468 powershell.exe 2468 powershell.exe 3676 powershell.exe 3676 powershell.exe 3452 powershell.exe 3452 powershell.exe 2800 powershell.exe 2800 powershell.exe 2640 powershell.exe 2640 powershell.exe 1856 injector.exe 1856 injector.exe 1856 injector.exe 1856 injector.exe 1856 injector.exe 1856 injector.exe 4144 csrss.exe 4144 csrss.exe 1856 injector.exe 1856 injector.exe 1856 injector.exe 1856 injector.exe 1856 injector.exe 1856 injector.exe 4144 csrss.exe 4144 csrss.exe 1856 injector.exe 1856 injector.exe 1856 injector.exe 1856 injector.exe 4144 csrss.exe 4144 csrss.exe 1856 injector.exe 1856 injector.exe 1856 injector.exe 1856 injector.exe 1856 injector.exe 1856 injector.exe 1856 injector.exe 1856 injector.exe 1856 injector.exe 1856 injector.exe 1856 injector.exe 1856 injector.exe 1856 injector.exe 1856 injector.exe 1856 injector.exe 1856 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exebcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 2056 powershell.exe Token: SeDebugPrivilege 4980 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe Token: SeImpersonatePrivilege 4980 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe Token: SeDebugPrivilege 2184 powershell.exe Token: SeDebugPrivilege 2468 powershell.exe Token: SeDebugPrivilege 3676 powershell.exe Token: SeDebugPrivilege 3452 powershell.exe Token: SeDebugPrivilege 2800 powershell.exe Token: SeDebugPrivilege 2640 powershell.exe Token: SeSystemEnvironmentPrivilege 4144 csrss.exe Token: SeSecurityPrivilege 3668 sc.exe Token: SeSecurityPrivilege 3668 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exebcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 4980 wrote to memory of 2056 4980 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe powershell.exe PID 4980 wrote to memory of 2056 4980 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe powershell.exe PID 4980 wrote to memory of 2056 4980 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe powershell.exe PID 3220 wrote to memory of 2184 3220 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe powershell.exe PID 3220 wrote to memory of 2184 3220 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe powershell.exe PID 3220 wrote to memory of 2184 3220 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe powershell.exe PID 3220 wrote to memory of 4908 3220 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe cmd.exe PID 3220 wrote to memory of 4908 3220 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe cmd.exe PID 4908 wrote to memory of 3560 4908 cmd.exe netsh.exe PID 4908 wrote to memory of 3560 4908 cmd.exe netsh.exe PID 3220 wrote to memory of 2468 3220 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe powershell.exe PID 3220 wrote to memory of 2468 3220 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe powershell.exe PID 3220 wrote to memory of 2468 3220 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe powershell.exe PID 3220 wrote to memory of 3676 3220 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe powershell.exe PID 3220 wrote to memory of 3676 3220 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe powershell.exe PID 3220 wrote to memory of 3676 3220 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe powershell.exe PID 3220 wrote to memory of 4144 3220 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe csrss.exe PID 3220 wrote to memory of 4144 3220 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe csrss.exe PID 3220 wrote to memory of 4144 3220 bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe csrss.exe PID 4144 wrote to memory of 3452 4144 csrss.exe powershell.exe PID 4144 wrote to memory of 3452 4144 csrss.exe powershell.exe PID 4144 wrote to memory of 3452 4144 csrss.exe powershell.exe PID 4144 wrote to memory of 2800 4144 csrss.exe powershell.exe PID 4144 wrote to memory of 2800 4144 csrss.exe powershell.exe PID 4144 wrote to memory of 2800 4144 csrss.exe powershell.exe PID 4144 wrote to memory of 2640 4144 csrss.exe powershell.exe PID 4144 wrote to memory of 2640 4144 csrss.exe powershell.exe PID 4144 wrote to memory of 2640 4144 csrss.exe powershell.exe PID 4144 wrote to memory of 1856 4144 csrss.exe injector.exe PID 4144 wrote to memory of 1856 4144 csrss.exe injector.exe PID 3324 wrote to memory of 232 3324 windefender.exe cmd.exe PID 3324 wrote to memory of 232 3324 windefender.exe cmd.exe PID 3324 wrote to memory of 232 3324 windefender.exe cmd.exe PID 232 wrote to memory of 3668 232 cmd.exe sc.exe PID 232 wrote to memory of 3668 232 cmd.exe sc.exe PID 232 wrote to memory of 3668 232 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\bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe"C:\Users\Admin\AppData\Local\Temp\bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4980 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2056 -
C:\Users\Admin\AppData\Local\Temp\bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.exe"C:\Users\Admin\AppData\Local\Temp\bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19.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:3220 -
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:2184 -
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:4908 -
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:3560 -
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:2468 -
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:3676 -
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:4144 -
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:3452 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:3104 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4068
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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:2800 -
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:2640 -
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:1856 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:4892 -
C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3324 -
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:232 -
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:3668
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2824
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
MD508a29fb7f601dd34b97d2662bb4b6be0
SHA19010bb02698ba5b073bb9cfe73d8014881fedc9e
SHA256bf491be9248f80d3c0758d2a7061be875e89e451f4c9c83b043fc2252cdf170d
SHA512537d4dbbd9e647b36c291538e0624a4be36be8cea5b88c54071c16a9c5fec34a8e5d9047d2226eedc26db7f587fc468bdd53a6a4a86f779932c8be2aaa76a84b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD570b86e82d68d95bb21cddc4fc81826ef
SHA1580b2b8c3d0cab2f78e790559011adf49ab96610
SHA256452780bf27ea37117ff8536812b0743a37808aa28eb9724fde891d4945f888d6
SHA5121d60bd778d738b141d1f80beca145f44652db2c8b2c33ba4a840e475224fa2e004bae1fa4bbbabe119d462f704f6d18622a48d5405dcfba1ed46524d8ae2e2cb
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD530068f08b720ee2942ed358daf16e062
SHA1252a00d6d9791e9c2a95a1fca63b81f9c1c33491
SHA256ba74cafa12c2d1373dd179782e227ba2ec4bb2f4fe423c5ed6e6bf857a6d90fd
SHA51253c198eaa40ecd858acb1ff6363e5c235b300d58f18dd4d0d33537e25354f130bf7ab3acbb0baef15385c150c4e1f9dbee3f2bdfabc148470135d1d50a562144
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50af1f77ed065016a4ddd004f8903154f
SHA1e821ad9975ae4660197aee59da0edafb67b8bb69
SHA256458a7eac2dd5d61d8119f2d0e8e7322e18e2210c81a1c7ec9dd7d42c5d1fd9ae
SHA5127f52da31c22ee0ca42f3201e7a31e426c1442902877f1aeb232258b312a7971da975fcac337d510c21550c4d29b9f2e9bdd88c70363a3d798d177d9ca4acfbd2
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5717b3022bdfa374df2da1382ceee409c
SHA16a88069b5e5b07b0301877d8f4df13804c589cea
SHA256f97b0c3c75306ce481010d925810ae3f94e3f639190c41710125de66742a90a9
SHA512add5556313c603957b7f63d5cfcc1bb6961a1da53cd8388dff454c6397bd748f8f87e7785bacecd692c60088fb4e41331bb0a4c5be0d57746ccb3d24720892f8
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Filesize
4.1MB
MD518c0f2c32548e13a4e17828be516cec7
SHA1134111afcd19cf832997beb1e5aceafcf1ae23d7
SHA256bcf60610432d21ff4db8159dcc311d612f7e9e94fead7a6ed4b3bf6c7cda9e19
SHA512cbef2305415c14a759f8f3caab7c0b7a75740d37199e311006a9e86afa5f904b7006be4bb0687c10a5dcece790f71006b053a85bc3849691960e7b809d983738
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec