Analysis
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max time kernel
149s -
max time network
114s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system -
submitted
27-04-2024 22:27
Static task
static1
Behavioral task
behavioral1
Sample
42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe
Resource
win10v2004-20240419-en
General
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Target
42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe
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Size
4.2MB
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MD5
bd20d333b6629f29d517085fbc4b3c11
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SHA1
dc6cda1698101f26bb7d2668137113834198d7b4
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SHA256
42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343
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SHA512
cd391b75546b22e06dc2085048285f70364a7439362b19c96f2e369844a57819f37f49493a45a33ce0c9442567defd40ef45536c135bd42e81b0a46ef780dfef
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SSDEEP
98304:3amOmyh13YwSD+iffg9rOMOczucEEdNxQlfwo87Elwi0PG1t:3Ty8Jy4o9ecZxQhwo8IinPG1t
Malware Config
Signatures
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Glupteba payload 18 IoCs
Processes:
resource yara_rule behavioral1/memory/1360-2-0x0000000003E90000-0x000000000477B000-memory.dmp family_glupteba behavioral1/memory/1360-3-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral1/memory/1360-80-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral1/memory/2272-133-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral1/memory/1360-137-0x0000000003E90000-0x000000000477B000-memory.dmp family_glupteba behavioral1/memory/4204-162-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral1/memory/4204-218-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral1/memory/4204-220-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral1/memory/4204-222-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral1/memory/4204-224-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral1/memory/4204-226-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral1/memory/4204-228-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral1/memory/4204-230-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral1/memory/4204-232-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral1/memory/4204-234-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral1/memory/4204-236-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral1/memory/4204-238-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral1/memory/4204-240-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 3672 netsh.exe -
Executes dropped EXE 2 IoCs
Processes:
csrss.exeinjector.exepid process 4204 csrss.exe 3652 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-17203666-93769886-2545153620-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Set value (str) \REGISTRY\USER\S-1-5-21-17203666-93769886-2545153620-1000\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 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 -
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:
42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe -
Drops file in Windows directory 2 IoCs
Processes:
42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exedescription ioc process File opened for modification C:\Windows\rss 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe File created C:\Windows\rss\csrss.exe 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.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 2620 schtasks.exe 3104 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exepowershell.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,-448 = "Azerbaijan Daylight Time" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 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\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs 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\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.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\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs 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\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-682 = "E. Australia Standard Time" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs 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 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\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exepowershell.exe42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 2620 powershell.exe 2620 powershell.exe 1360 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe 1360 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe 2944 powershell.exe 2944 powershell.exe 2272 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe 2272 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe 2272 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe 2272 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe 2272 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe 2272 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe 2272 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe 2272 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe 2272 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe 2272 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe 3296 powershell.exe 3296 powershell.exe 2604 powershell.exe 2604 powershell.exe 4772 powershell.exe 4772 powershell.exe 224 powershell.exe 224 powershell.exe 1560 powershell.exe 1560 powershell.exe 3652 injector.exe 3652 injector.exe 3652 injector.exe 3652 injector.exe 3652 injector.exe 3652 injector.exe 4204 csrss.exe 4204 csrss.exe 3652 injector.exe 3652 injector.exe 3652 injector.exe 3652 injector.exe 3652 injector.exe 3652 injector.exe 4204 csrss.exe 4204 csrss.exe 3652 injector.exe 3652 injector.exe 3652 injector.exe 3652 injector.exe 3652 injector.exe 3652 injector.exe 3652 injector.exe 3652 injector.exe 3652 injector.exe 3652 injector.exe 3652 injector.exe 3652 injector.exe 3652 injector.exe 3652 injector.exe 3652 injector.exe 3652 injector.exe 3652 injector.exe 3652 injector.exe 3652 injector.exe 3652 injector.exe 3652 injector.exe 3652 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
Processes:
powershell.exe42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exedescription pid process Token: SeDebugPrivilege 2620 powershell.exe Token: SeDebugPrivilege 1360 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Token: SeImpersonatePrivilege 1360 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe Token: SeDebugPrivilege 2944 powershell.exe Token: SeDebugPrivilege 3296 powershell.exe Token: SeDebugPrivilege 2604 powershell.exe Token: SeDebugPrivilege 4772 powershell.exe Token: SeDebugPrivilege 224 powershell.exe Token: SeDebugPrivilege 1560 powershell.exe Token: SeSystemEnvironmentPrivilege 4204 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.execmd.execsrss.exedescription pid process target process PID 1360 wrote to memory of 2620 1360 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe powershell.exe PID 1360 wrote to memory of 2620 1360 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe powershell.exe PID 1360 wrote to memory of 2620 1360 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe powershell.exe PID 2272 wrote to memory of 2944 2272 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe powershell.exe PID 2272 wrote to memory of 2944 2272 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe powershell.exe PID 2272 wrote to memory of 2944 2272 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe powershell.exe PID 2272 wrote to memory of 1560 2272 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe cmd.exe PID 2272 wrote to memory of 1560 2272 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe cmd.exe PID 1560 wrote to memory of 3672 1560 cmd.exe netsh.exe PID 1560 wrote to memory of 3672 1560 cmd.exe netsh.exe PID 2272 wrote to memory of 3296 2272 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe powershell.exe PID 2272 wrote to memory of 3296 2272 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe powershell.exe PID 2272 wrote to memory of 3296 2272 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe powershell.exe PID 2272 wrote to memory of 2604 2272 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe powershell.exe PID 2272 wrote to memory of 2604 2272 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe powershell.exe PID 2272 wrote to memory of 2604 2272 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe powershell.exe PID 2272 wrote to memory of 4204 2272 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe csrss.exe PID 2272 wrote to memory of 4204 2272 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe csrss.exe PID 2272 wrote to memory of 4204 2272 42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe csrss.exe PID 4204 wrote to memory of 4772 4204 csrss.exe powershell.exe PID 4204 wrote to memory of 4772 4204 csrss.exe powershell.exe PID 4204 wrote to memory of 4772 4204 csrss.exe powershell.exe PID 4204 wrote to memory of 224 4204 csrss.exe powershell.exe PID 4204 wrote to memory of 224 4204 csrss.exe powershell.exe PID 4204 wrote to memory of 224 4204 csrss.exe powershell.exe PID 4204 wrote to memory of 1560 4204 csrss.exe powershell.exe PID 4204 wrote to memory of 1560 4204 csrss.exe powershell.exe PID 4204 wrote to memory of 1560 4204 csrss.exe powershell.exe PID 4204 wrote to memory of 3652 4204 csrss.exe injector.exe PID 4204 wrote to memory of 3652 4204 csrss.exe injector.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\42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe"C:\Users\Admin\AppData\Local\Temp\42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1360 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2620
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C:\Users\Admin\AppData\Local\Temp\42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe"C:\Users\Admin\AppData\Local\Temp\42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.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:2272 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2944
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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:1560 -
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:3672
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3296
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2604
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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.
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4204 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4772
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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:2620
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1792
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:224
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1560
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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:3652
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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:3104
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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
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e81994e6fe3996b1326c1c591cef77c1
SHA132009de3a081fe5438c2aa681e6f0413c9bbc183
SHA256608b0859c235ec5b009b991c8419ffc1795848a762021df96f46e42da0ffb524
SHA5121b683e0f7b85f590459d1119aa31d61b39720c91f920b1db78aaf06091ca33fd2317da0b413ccf1a7c36b324fce4e34193759cfc920adff6367cc6ab4e39b50f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56bae6c1c06f358d6b28f3488f588c0fd
SHA1dd5e46168f4674965db5080f2f981b29bb8394cd
SHA25676ca9be82717362b08730aea4e7d115fed3265adb79e8ba309abee53c12fbc63
SHA5123328a1a8fc96de2c36add836e24309150708b228b74bbaf5049e707d6a7ae17bce4830b2116a2ef8b33b6cfea3d5abf740ddad8366ed33b14fe0a5cdf29f5fdf
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56d3fc7163b96ca620a15e59a1ce105ee
SHA145267774fe22e087fd3495eedced9e5ad5c36fc2
SHA256ddb99c467234a3c7ef5ae9be59c61c197fb12f7880758e4f3db2804101be9324
SHA512216cfc904cf7baa2317d4bf205b5b4b02aa50a548925015ae3d62a498ead12ec9929c9ad8432b83d865cc3d3090566841b12caa727bd4565d5341109af9d1cab
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55c6171c02f75ff44362ec080df3864ca
SHA1093d0c0e60fef54dfaf2dd9c27f638f23633009d
SHA25614862e8c340d3be2b37d0091871e4e496b976f7def347bc916c73c5cd764e1f2
SHA5128a7af7e2d0fef1fed24182615601e7360874ebe59bdc3201da206f872e98ad27d7cb3d07d4e36938ed613b5640c33437e4e5b4dfd83ba05115a3034ba67da46d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d8214354d5c0398930d1888c594c20fe
SHA1a4d66ddcd7117bf9aaa12aea0a7896077a0c30b6
SHA256252dbf47e30ef3b94e7e1e8e54d557ed601cd9ce8f934eb835a8e28d6737a7a8
SHA512ceb488c0b2da1e475ab611b3be2b2879f7805723a0fe92866aab90366db5ec4e24703cff33e7f9c509939c96d97c2cb381ce9ef894112ab70d3f45f05b5f61e0
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Filesize
4.2MB
MD5bd20d333b6629f29d517085fbc4b3c11
SHA1dc6cda1698101f26bb7d2668137113834198d7b4
SHA25642c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343
SHA512cd391b75546b22e06dc2085048285f70364a7439362b19c96f2e369844a57819f37f49493a45a33ce0c9442567defd40ef45536c135bd42e81b0a46ef780dfef