Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
19-04-2024 14:03
Static task
static1
Behavioral task
behavioral1
Sample
3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe
Resource
win10v2004-20240412-en
General
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Target
3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe
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Size
4.2MB
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MD5
89d4272e02b7a1bfa1c3548925f01017
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SHA1
21ec3caa6e0fccc0af966abcb0469d794eaea7c4
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SHA256
3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000
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SHA512
a5c6bf032b6ba18e2c4b2e55864fa3592dc984c7b1fda73ed6d98f5963b7ce4e854df18505df97d3ba2581cddf2f501e5718dcaaf5c6e1aca8d7c310b1de816d
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SSDEEP
98304:Du15A1GiNRFuKfVvdEh8/k6ld6teGU//blllQO5EUt0+BFZRUpdVY+:DaARFuKJWhQkavn//blllQdNaFDGXJ
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral1/memory/4868-2-0x0000000003EC0000-0x00000000047AB000-memory.dmp family_glupteba behavioral1/memory/4868-3-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral1/memory/1656-57-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral1/memory/4868-58-0x0000000003EC0000-0x00000000047AB000-memory.dmp family_glupteba behavioral1/memory/4868-72-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral1/memory/1656-189-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral1/memory/1300-259-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral1/memory/1300-270-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral1/memory/1300-274-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral1/memory/1300-278-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral1/memory/1300-282-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral1/memory/1300-286-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral1/memory/1300-290-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral1/memory/1300-294-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral1/memory/1300-298-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral1/memory/1300-302-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral1/memory/1300-306-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral1/memory/1300-310-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral1/memory/1300-314-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 3224 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 1300 csrss.exe 1732 injector.exe 4464 windefender.exe 992 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral1/memory/4464-268-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/992-273-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/992-281-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe Set value (str) \REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
Processes:
csrss.exedescription ioc process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
Processes:
3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe -
Drops file in Windows directory 4 IoCs
Processes:
3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.execsrss.exedescription ioc process File opened for modification C:\Windows\rss 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe File created C:\Windows\rss\csrss.exe 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.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 4472 sc.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 1352 schtasks.exe 4212 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exewindefender.exepowershell.exepowershell.exe3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exepowershell.exepowershell.exepowershell.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-771 = "Montevideo Daylight Time" windefender.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\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-721 = "Central Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time" 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.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\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-448 = "Azerbaijan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-622 = "Korea Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time" 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1502 = "Turkey Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2342 = "Haiti Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2792 = "Novosibirsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time" 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1021 = "Bangladesh Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-331 = "E. Europe Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-391 = "Arab Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-3051 = "Qyzylorda Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-791 = "SA Western Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-212 = "Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time" 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-662 = "Cen. Australia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2531 = "Chatham Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1721 = "Libya Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time" 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2161 = "Altai Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1862 = "Russia TZ 6 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time" 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-281 = "Central Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-432 = "Iran Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2511 = "Lord Howe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-364 = "Middle East Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exepowershell.exe3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 2108 powershell.exe 2108 powershell.exe 4868 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe 4868 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe 3184 powershell.exe 3184 powershell.exe 1656 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe 1656 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe 1656 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe 1656 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe 1656 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe 1656 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe 1656 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe 1656 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe 1656 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe 1656 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe 2556 powershell.exe 2556 powershell.exe 1748 powershell.exe 1748 powershell.exe 948 powershell.exe 948 powershell.exe 3756 powershell.exe 3756 powershell.exe 1240 powershell.exe 1240 powershell.exe 1732 injector.exe 1732 injector.exe 1732 injector.exe 1732 injector.exe 1732 injector.exe 1732 injector.exe 1300 csrss.exe 1300 csrss.exe 1732 injector.exe 1732 injector.exe 1732 injector.exe 1732 injector.exe 1732 injector.exe 1732 injector.exe 1300 csrss.exe 1300 csrss.exe 1732 injector.exe 1732 injector.exe 1732 injector.exe 1732 injector.exe 1300 csrss.exe 1300 csrss.exe 1732 injector.exe 1732 injector.exe 1732 injector.exe 1732 injector.exe 1732 injector.exe 1732 injector.exe 1732 injector.exe 1732 injector.exe 1732 injector.exe 1732 injector.exe 1732 injector.exe 1732 injector.exe 1732 injector.exe 1732 injector.exe 1732 injector.exe 1732 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 2108 powershell.exe Token: SeDebugPrivilege 4868 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe Token: SeImpersonatePrivilege 4868 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe Token: SeDebugPrivilege 3184 powershell.exe Token: SeDebugPrivilege 2556 powershell.exe Token: SeDebugPrivilege 1748 powershell.exe Token: SeDebugPrivilege 948 powershell.exe Token: SeDebugPrivilege 3756 powershell.exe Token: SeDebugPrivilege 1240 powershell.exe Token: SeSystemEnvironmentPrivilege 1300 csrss.exe Token: SeSecurityPrivilege 4472 sc.exe Token: SeSecurityPrivilege 4472 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 4868 wrote to memory of 2108 4868 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe powershell.exe PID 4868 wrote to memory of 2108 4868 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe powershell.exe PID 4868 wrote to memory of 2108 4868 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe powershell.exe PID 1656 wrote to memory of 3184 1656 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe powershell.exe PID 1656 wrote to memory of 3184 1656 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe powershell.exe PID 1656 wrote to memory of 3184 1656 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe powershell.exe PID 1656 wrote to memory of 4528 1656 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe cmd.exe PID 1656 wrote to memory of 4528 1656 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe cmd.exe PID 4528 wrote to memory of 3224 4528 cmd.exe netsh.exe PID 4528 wrote to memory of 3224 4528 cmd.exe netsh.exe PID 1656 wrote to memory of 2556 1656 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe powershell.exe PID 1656 wrote to memory of 2556 1656 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe powershell.exe PID 1656 wrote to memory of 2556 1656 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe powershell.exe PID 1656 wrote to memory of 1748 1656 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe powershell.exe PID 1656 wrote to memory of 1748 1656 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe powershell.exe PID 1656 wrote to memory of 1748 1656 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe powershell.exe PID 1656 wrote to memory of 1300 1656 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe csrss.exe PID 1656 wrote to memory of 1300 1656 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe csrss.exe PID 1656 wrote to memory of 1300 1656 3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe csrss.exe PID 1300 wrote to memory of 948 1300 csrss.exe powershell.exe PID 1300 wrote to memory of 948 1300 csrss.exe powershell.exe PID 1300 wrote to memory of 948 1300 csrss.exe powershell.exe PID 1300 wrote to memory of 3756 1300 csrss.exe powershell.exe PID 1300 wrote to memory of 3756 1300 csrss.exe powershell.exe PID 1300 wrote to memory of 3756 1300 csrss.exe powershell.exe PID 1300 wrote to memory of 1240 1300 csrss.exe powershell.exe PID 1300 wrote to memory of 1240 1300 csrss.exe powershell.exe PID 1300 wrote to memory of 1240 1300 csrss.exe powershell.exe PID 1300 wrote to memory of 1732 1300 csrss.exe injector.exe PID 1300 wrote to memory of 1732 1300 csrss.exe injector.exe PID 4464 wrote to memory of 3684 4464 windefender.exe cmd.exe PID 4464 wrote to memory of 3684 4464 windefender.exe cmd.exe PID 4464 wrote to memory of 3684 4464 windefender.exe cmd.exe PID 3684 wrote to memory of 4472 3684 cmd.exe sc.exe PID 3684 wrote to memory of 4472 3684 cmd.exe sc.exe PID 3684 wrote to memory of 4472 3684 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\3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe"C:\Users\Admin\AppData\Local\Temp\3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4868 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2108
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C:\Users\Admin\AppData\Local\Temp\3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.exe"C:\Users\Admin\AppData\Local\Temp\3dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000.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:1656 -
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:3184
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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:4528 -
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:3224
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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:2556
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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:1748
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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:1300 -
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:948
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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:1352
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:5108
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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:3756
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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:1240
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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:1732
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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:4212
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4464 -
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:3684 -
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:4472
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:992
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
MD5d5d69eabce2163176f46f8158eab7a09
SHA1b2ab5308a4836fb16c4ec84aca00c0537ebda190
SHA2565017e1f7d9559c7af5a89400b208cc123b15151d0d51d6c466cea5c62e020abe
SHA512bdc3c6a7ed328802f3398e4f9145167b8d8c49bf17cdf6adf1856d7532234836baf94cc06b6fbfe0f73d66b7b26649d896e54af4477eac789cf75d627c1d6089
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD548a0476f3b6b3859b1902966a50257cd
SHA132f8f772d586486d173ea8af55130d013e8922a2
SHA2562e3d229f5002ca79a81aba6da0ce8ff4367cc43488fcf5cd09bb34ea5d6ef534
SHA512196963551bbcdb34915d0a06baf20381a1831d5ce346a01986fb0299a5cf71bdd6539f6c1fea67484531093eddd1ce3dd2c211e136b27b289614a6e575d3c566
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56a7e7fc367dd41f1e6f528f6f676d306
SHA1fb32291d3c9e08c2391ca91f4f4eb5709ff6f807
SHA256f0ad3ffab8e82598f0ab896686de4495e2d4b66cb022fab3e859c47d00cf6f51
SHA512afe16ac06842ad83b5f5dc1dc48f56e236377a79d97436dd06be71c2b25c21b409dc232dd6941f24649cb777b019df8681b417263fe87f2b23e3b6065b1c657d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e8890df5a5716c5a6dbcd92c29e353c1
SHA1dc61370ae2513c7d2d004ece57d88e090a091d76
SHA256901a8401545efa6e0d895bbe7bbaea0ad642ec79572421b72e946b3111862167
SHA5120d9c660dce6c6b216de86ccf70cef21a1c228ae3d7429ddcb8a34d0eea984b2016532b74eb70415d974f7b80fe870ba4bdc0a3462015a232b3cad53c2bd72db8
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5cfb3fe4b85d2965967c7a41d9fe2ea01
SHA113fce36f6e6346d99c4eaa651c94f8fee1cc008f
SHA2561d83b834229d1f8e4a642ae9700bc8562a5e39aa86aa711bd6184b8aa711b416
SHA512b10620d3bce5a06bf852c8dba1384d558f89e1498b3f307941c1c0dde309fefdcb49f2caceb780e518e6ab5842f9078912cc760fbf4139ff3c8f3745edcd4543
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Filesize
4.2MB
MD589d4272e02b7a1bfa1c3548925f01017
SHA121ec3caa6e0fccc0af966abcb0469d794eaea7c4
SHA2563dcce373d1f6fa8ff45d1f6f6c9335ec769ce24a50fb1d04ab20f81ed99b0000
SHA512a5c6bf032b6ba18e2c4b2e55864fa3592dc984c7b1fda73ed6d98f5963b7ce4e854df18505df97d3ba2581cddf2f501e5718dcaaf5c6e1aca8d7c310b1de816d
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec