Analysis
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max time kernel
150s -
max time network
149s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-04-2024 14:04
Static task
static1
Behavioral task
behavioral1
Sample
105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe
Resource
win10v2004-20240412-en
General
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Target
105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe
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Size
4.2MB
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MD5
a3516189919a22ec9eaba6ad8dc5effa
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SHA1
3b7df3717b83a4385dadc7a8c15ba87e6a48b916
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SHA256
105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e
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SHA512
b7cdd8d806bc150a1d321aaba192f8d02bb13f30cfccf093f0e76b78cd93f1c2cc767bb67c89516920a0ac23c6d92c4699381bfedf93f2c33fab245d30dbc9bc
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SSDEEP
98304:zu15A1GiNRFuKfVvdEh8/k6ld6teGU//blllQO5EUt0+BFZRUpdVY3:zaARFuKJWhQkavn//blllQdNaFDGXE
Malware Config
Signatures
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Glupteba payload 21 IoCs
Processes:
resource yara_rule behavioral2/memory/2772-2-0x0000000004060000-0x000000000494B000-memory.dmp family_glupteba behavioral2/memory/2772-3-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/3556-52-0x0000000003F90000-0x000000000487B000-memory.dmp family_glupteba behavioral2/memory/3556-53-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2772-65-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/3556-122-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/3556-143-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/676-145-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/676-207-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/676-240-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/676-251-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/676-255-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/676-259-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/676-262-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/676-266-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/676-271-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/676-275-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/676-279-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/676-283-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/676-286-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/676-290-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 5044 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 676 csrss.exe 4376 injector.exe 1980 windefender.exe 3476 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/1980-247-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3476-252-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3476-260-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3777591257-2471171023-3629228286-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe Set value (str) \REGISTRY\USER\S-1-5-21-3777591257-2471171023-3629228286-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
Processes:
csrss.exedescription ioc process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created 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:
105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe -
Drops file in Windows directory 4 IoCs
Processes:
105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.execsrss.exedescription ioc process File opened for modification C:\Windows\rss 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe File created C:\Windows\rss\csrss.exe 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.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 4588 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 3656 schtasks.exe 4388 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exewindefender.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2431 = "Cuba Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs 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\26\52C64B7E\@tzres.dll,-361 = "GTB Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-771 = "Montevideo Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople 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,-292 = "Central European Standard Time" windefender.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,-391 = "Arab Daylight Time" 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.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,-691 = "Tasmania Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time" 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 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,-772 = "Montevideo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-632 = "Tokyo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time" 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time" 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\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\26\52C64B7E\@tzres.dll,-491 = "India Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time" 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe Key created \REGISTRY\USER\.DEFAULT\Software\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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time" 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time" 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root 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\@tzres.dll,-449 = "Azerbaijan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-731 = "Fiji Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time" 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\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,-331 = "E. Europe 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" 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1832 = "Russia TZ 2 Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe 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,-142 = "Canada Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-384 = "Namibia Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exepowershell.exe105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 3364 powershell.exe 3364 powershell.exe 2772 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe 2772 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe 2436 powershell.exe 2436 powershell.exe 3556 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe 3556 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe 3556 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe 3556 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe 3556 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe 3556 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe 3556 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe 3556 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe 3556 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe 3556 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe 3160 powershell.exe 3160 powershell.exe 3024 powershell.exe 3024 powershell.exe 5060 powershell.exe 5060 powershell.exe 1888 powershell.exe 1888 powershell.exe 3400 powershell.exe 3400 powershell.exe 4376 injector.exe 4376 injector.exe 4376 injector.exe 4376 injector.exe 4376 injector.exe 4376 injector.exe 676 csrss.exe 676 csrss.exe 4376 injector.exe 4376 injector.exe 4376 injector.exe 4376 injector.exe 4376 injector.exe 4376 injector.exe 676 csrss.exe 676 csrss.exe 4376 injector.exe 4376 injector.exe 4376 injector.exe 4376 injector.exe 4376 injector.exe 4376 injector.exe 676 csrss.exe 676 csrss.exe 4376 injector.exe 4376 injector.exe 4376 injector.exe 4376 injector.exe 4376 injector.exe 4376 injector.exe 4376 injector.exe 4376 injector.exe 4376 injector.exe 4376 injector.exe 4376 injector.exe 4376 injector.exe 4376 injector.exe 4376 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 3364 powershell.exe Token: SeDebugPrivilege 2772 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe Token: SeImpersonatePrivilege 2772 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe Token: SeDebugPrivilege 2436 powershell.exe Token: SeDebugPrivilege 3160 powershell.exe Token: SeDebugPrivilege 3024 powershell.exe Token: SeDebugPrivilege 5060 powershell.exe Token: SeDebugPrivilege 1888 powershell.exe Token: SeDebugPrivilege 3400 powershell.exe Token: SeSystemEnvironmentPrivilege 676 csrss.exe Token: SeSecurityPrivilege 4588 sc.exe Token: SeSecurityPrivilege 4588 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 2772 wrote to memory of 3364 2772 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe powershell.exe PID 2772 wrote to memory of 3364 2772 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe powershell.exe PID 2772 wrote to memory of 3364 2772 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe powershell.exe PID 3556 wrote to memory of 2436 3556 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe powershell.exe PID 3556 wrote to memory of 2436 3556 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe powershell.exe PID 3556 wrote to memory of 2436 3556 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe powershell.exe PID 3556 wrote to memory of 2868 3556 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe cmd.exe PID 3556 wrote to memory of 2868 3556 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe cmd.exe PID 2868 wrote to memory of 5044 2868 cmd.exe netsh.exe PID 2868 wrote to memory of 5044 2868 cmd.exe netsh.exe PID 3556 wrote to memory of 3160 3556 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe powershell.exe PID 3556 wrote to memory of 3160 3556 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe powershell.exe PID 3556 wrote to memory of 3160 3556 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe powershell.exe PID 3556 wrote to memory of 3024 3556 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe powershell.exe PID 3556 wrote to memory of 3024 3556 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe powershell.exe PID 3556 wrote to memory of 3024 3556 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe powershell.exe PID 3556 wrote to memory of 676 3556 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe csrss.exe PID 3556 wrote to memory of 676 3556 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe csrss.exe PID 3556 wrote to memory of 676 3556 105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe csrss.exe PID 676 wrote to memory of 5060 676 csrss.exe powershell.exe PID 676 wrote to memory of 5060 676 csrss.exe powershell.exe PID 676 wrote to memory of 5060 676 csrss.exe powershell.exe PID 676 wrote to memory of 1888 676 csrss.exe powershell.exe PID 676 wrote to memory of 1888 676 csrss.exe powershell.exe PID 676 wrote to memory of 1888 676 csrss.exe powershell.exe PID 676 wrote to memory of 3400 676 csrss.exe powershell.exe PID 676 wrote to memory of 3400 676 csrss.exe powershell.exe PID 676 wrote to memory of 3400 676 csrss.exe powershell.exe PID 676 wrote to memory of 4376 676 csrss.exe injector.exe PID 676 wrote to memory of 4376 676 csrss.exe injector.exe PID 1980 wrote to memory of 3160 1980 windefender.exe cmd.exe PID 1980 wrote to memory of 3160 1980 windefender.exe cmd.exe PID 1980 wrote to memory of 3160 1980 windefender.exe cmd.exe PID 3160 wrote to memory of 4588 3160 cmd.exe sc.exe PID 3160 wrote to memory of 4588 3160 cmd.exe sc.exe PID 3160 wrote to memory of 4588 3160 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\105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe"C:\Users\Admin\AppData\Local\Temp\105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2772 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3364
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C:\Users\Admin\AppData\Local\Temp\105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.exe"C:\Users\Admin\AppData\Local\Temp\105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e.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:3556 -
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:2436
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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:2868 -
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:5044
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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:3160
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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:3024
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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:676 -
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:5060
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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:4388
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3120
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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:1888
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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:3400
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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:4376
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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:3656
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1980 -
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:3160 -
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:4588
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3476
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
MD5e5947c3d02112c34a3701c329142e777
SHA17738cc3737aa51c0395abf69e07f6e19a9162855
SHA2567c0350b8324b3dbf772d7878039a6790424b6f46e13727d454be8ebf60d9654c
SHA512eb4c61fdb7b44c00ef7afbf1532c566abbd0294bbdedc265bc2790bbcf99bf989f9ebf4712a898880c84772bdd4a017dc925ed7a5988f92dadad22c22c3a8d30
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d23c6c693b9bff477dfd5f7be7d67466
SHA1c34d1c53b2afde6be2948399ad4b284f307505b1
SHA2561b7746260c5918e6220058a4da9747c6095cb68ed4b992f1641c33c30e460015
SHA5129e086d840edaa5666236c19fb09d379e5bc320633167e194cb11333dd496596743d9d4c0be977a2f0c764906ca80a1cab29fc88670df3c3cbafa03da72b80212
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59c91c7f72a845cc467f6095a171ea97d
SHA13ced6aa2e484a22f656ee85962b419c2fe9560a3
SHA256372fdf4a35bb234c7d4d5da7c1a0999ff2cb223b8e7563db8b3127c62d4f703a
SHA512faaa4a95604a0ce7810b7e713c6240cae2538ac89f9d2538f60f6dd3355bb47d90ec029aeb2e946df96e966fdd9d6a5226790beaabf91aa9d69982f8ac8654d3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a1605d13889fa2668673744d843a65c0
SHA1c115121e42ff54bd4e1ee3afd4d42b09694b74fa
SHA256dd29c7c49a24d2ccebe4f48bab0a890a3df72b6c6eb1da11a9394961bc0f765b
SHA512b99accbbd05781e5a317e6762d38d2a9ddf6d56a585d2388dce34d4afe2df77ebd6f67c35f5a87d63fa11e6d50454783d9908b0f5eef4e449e5e7d0e8bf4c4a6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD581f33909543319c19e60ba01867faead
SHA15387df55588227f5b4d6c8a7b3fdee10cc95ab56
SHA256dc179242c876c8bf6bace9b82465a9ea0a41687b8e1efdeebfb22bf58d7a9e28
SHA51228d804ed4b61ea241cb144dfdbc10768a83349ae6623d6581d9a33e2a51c549ea8aeb2a44f900d745d05889403c7f4296e1d94dc62d74dc295f8c290a7c3eea8
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Filesize
4.2MB
MD5a3516189919a22ec9eaba6ad8dc5effa
SHA13b7df3717b83a4385dadc7a8c15ba87e6a48b916
SHA256105561403c846ad777a4e5eed1afc8c05222e9ae36f86a6559b6cf43bcd7159e
SHA512b7cdd8d806bc150a1d321aaba192f8d02bb13f30cfccf093f0e76b78cd93f1c2cc767bb67c89516920a0ac23c6d92c4699381bfedf93f2c33fab245d30dbc9bc
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec