Analysis
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max time kernel
150s -
max time network
138s -
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, 16:06
Static task
static1
Behavioral task
behavioral1
Sample
b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe
Resource
win10v2004-20240412-en
General
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Target
b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe
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Size
4.2MB
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MD5
9bb7358dc8008a63279e0ed08ba31644
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SHA1
c864335fe66425c93f906c156e7012e6b711db0f
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SHA256
b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14
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SHA512
8a2f6a1e9646802978d420d4b94739b5b999f6992cc197c2b1ebb8faf7c30e73962b0b6166810914964bf02059605dcfffb65ba25d4fa149fc9fcf15cce95b47
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SSDEEP
98304:noZCtMNcIJm/Wi5iI7vKblq/qDx6472PxO1xv/KiJen:n3OuIEug7vwUGt7S+nKl
Malware Config
Signatures
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Glupteba payload 20 IoCs
resource yara_rule behavioral2/memory/4848-2-0x0000000003F00000-0x00000000047EB000-memory.dmp family_glupteba behavioral2/memory/4848-3-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/3368-53-0x0000000003F00000-0x00000000047EB000-memory.dmp family_glupteba behavioral2/memory/3368-54-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4848-56-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/3368-127-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/3368-149-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4548-241-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4548-250-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4548-252-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4548-255-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4548-260-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4548-263-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4548-265-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4548-268-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4548-270-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4548-273-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4548-278-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4548-280-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4548-283-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2344 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4548 csrss.exe 4684 injector.exe 3076 windefender.exe 3184 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9db-244.dat upx behavioral2/memory/3076-249-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3184-253-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3184-258-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3184-267-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description 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\"" b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.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.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe File created C:\Windows\rss\csrss.exe b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.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.
pid Process 1480 sc.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 232 schtasks.exe 1832 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-111 = "Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2872 = "Magallanes Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-511 = "Central Asia 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\Microsoft\SystemCertificates\SmartCardRoot\CRLs 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\26\52C64B7E\@tzres.dll,-2611 = "Bougainville Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time" b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-682 = "E. Australia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2752 = "Tomsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates 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\26\52C64B7E\@tzres.dll,-1022 = "Bangladesh Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time" b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.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\@tzres.dll,-2871 = "Magallanes Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time" b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time" b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.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\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\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs 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,-1861 = "Russia TZ 6 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-842 = "Argentina Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.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\Microsoft\SystemCertificates\TrustedPeople\Certificates 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\26\52C64B7E\@tzres.dll,-2322 = "Sakhalin Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.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" b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2744 powershell.exe 2744 powershell.exe 4848 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe 4848 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe 4544 powershell.exe 4544 powershell.exe 3368 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe 3368 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe 3368 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe 3368 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe 3368 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe 3368 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe 3368 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe 3368 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe 3368 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe 3368 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe 2976 powershell.exe 2976 powershell.exe 1052 powershell.exe 1052 powershell.exe 1116 powershell.exe 1116 powershell.exe 3352 powershell.exe 3352 powershell.exe 4268 powershell.exe 4268 powershell.exe 4684 injector.exe 4684 injector.exe 4684 injector.exe 4684 injector.exe 4684 injector.exe 4684 injector.exe 4548 csrss.exe 4548 csrss.exe 4684 injector.exe 4684 injector.exe 4684 injector.exe 4684 injector.exe 4684 injector.exe 4684 injector.exe 4548 csrss.exe 4548 csrss.exe 4684 injector.exe 4684 injector.exe 4684 injector.exe 4684 injector.exe 4548 csrss.exe 4548 csrss.exe 4684 injector.exe 4684 injector.exe 4684 injector.exe 4684 injector.exe 4684 injector.exe 4684 injector.exe 4684 injector.exe 4684 injector.exe 4684 injector.exe 4684 injector.exe 4684 injector.exe 4684 injector.exe 4684 injector.exe 4684 injector.exe 4684 injector.exe 4684 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 2744 powershell.exe Token: SeDebugPrivilege 4848 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe Token: SeImpersonatePrivilege 4848 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe Token: SeDebugPrivilege 4544 powershell.exe Token: SeDebugPrivilege 2976 powershell.exe Token: SeDebugPrivilege 1052 powershell.exe Token: SeDebugPrivilege 1116 powershell.exe Token: SeDebugPrivilege 3352 powershell.exe Token: SeDebugPrivilege 4268 powershell.exe Token: SeSystemEnvironmentPrivilege 4548 csrss.exe Token: SeSecurityPrivilege 1480 sc.exe Token: SeSecurityPrivilege 1480 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4848 wrote to memory of 2744 4848 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe 82 PID 4848 wrote to memory of 2744 4848 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe 82 PID 4848 wrote to memory of 2744 4848 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe 82 PID 3368 wrote to memory of 4544 3368 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe 87 PID 3368 wrote to memory of 4544 3368 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe 87 PID 3368 wrote to memory of 4544 3368 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe 87 PID 3368 wrote to memory of 2496 3368 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe 89 PID 3368 wrote to memory of 2496 3368 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe 89 PID 2496 wrote to memory of 2344 2496 cmd.exe 91 PID 2496 wrote to memory of 2344 2496 cmd.exe 91 PID 3368 wrote to memory of 2976 3368 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe 92 PID 3368 wrote to memory of 2976 3368 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe 92 PID 3368 wrote to memory of 2976 3368 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe 92 PID 3368 wrote to memory of 1052 3368 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe 94 PID 3368 wrote to memory of 1052 3368 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe 94 PID 3368 wrote to memory of 1052 3368 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe 94 PID 3368 wrote to memory of 4548 3368 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe 96 PID 3368 wrote to memory of 4548 3368 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe 96 PID 3368 wrote to memory of 4548 3368 b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe 96 PID 4548 wrote to memory of 1116 4548 csrss.exe 97 PID 4548 wrote to memory of 1116 4548 csrss.exe 97 PID 4548 wrote to memory of 1116 4548 csrss.exe 97 PID 4548 wrote to memory of 3352 4548 csrss.exe 103 PID 4548 wrote to memory of 3352 4548 csrss.exe 103 PID 4548 wrote to memory of 3352 4548 csrss.exe 103 PID 4548 wrote to memory of 4268 4548 csrss.exe 105 PID 4548 wrote to memory of 4268 4548 csrss.exe 105 PID 4548 wrote to memory of 4268 4548 csrss.exe 105 PID 4548 wrote to memory of 4684 4548 csrss.exe 107 PID 4548 wrote to memory of 4684 4548 csrss.exe 107 PID 3076 wrote to memory of 2712 3076 windefender.exe 113 PID 3076 wrote to memory of 2712 3076 windefender.exe 113 PID 3076 wrote to memory of 2712 3076 windefender.exe 113 PID 2712 wrote to memory of 1480 2712 cmd.exe 114 PID 2712 wrote to memory of 1480 2712 cmd.exe 114 PID 2712 wrote to memory of 1480 2712 cmd.exe 114 -
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\b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe"C:\Users\Admin\AppData\Local\Temp\b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4848 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2744
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C:\Users\Admin\AppData\Local\Temp\b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.exe"C:\Users\Admin\AppData\Local\Temp\b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14.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:3368 -
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:4544
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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:2496 -
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:2344
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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:2976
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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:1052
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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:4548 -
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:1116
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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:232
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1064
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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:3352
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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:4268
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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:4684
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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:1832
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3076 -
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:2712 -
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:1480
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3184
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
MD5df4959b4ad3093248d8ee62d2c9db8ec
SHA113968d287f11a06a5450035350cc497ac322a52a
SHA25600f3aa3ef5f2b7d23db4ed60a2f9d841feb531dbf3f2d38428a58c3ffa91d558
SHA5125451fabb266061f1875fc6221b6b41d11774b17ce7b926d8036238f76c6bb0a46cc4fcebff57513da5252af9c146c7af3439e734c5a9204352c74c26bc87b878
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b3bf87ce3c694bcc324a48c714725d65
SHA13795cee675de009069098d29599d0c9752345810
SHA2562c0f8a062ddc0edc68790eb2ff2038e07ecc82e86c8fdd04a55a0ce9a0adf712
SHA51219ffd58b66fa611c03301a493346a0da964b850a98a6f10a0fb4a537e8c5db22a7da407703763e46242c2084352b59fd9ec39aa3b2f0d7fa2b4df6b921fd24b1
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d4a82743af62336e7d9cbc687ddf92d8
SHA123f904a7e560b9d1716fac99cb674d95164ddbf9
SHA256a25c59f794228650d3c8ecdbeb9a765bc0c180ecb6e488f823b326c8ee6e4119
SHA512058dd0f12e47a437809a793ec388a721130a08d12d7b82d2b0f0a488a5bf207d6196d664a7fabb8a488ec22e3067ea87112fe73680ee3d828f5396a8d7515b60
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5aca6fd3870a3dcd6737cd060399b1d32
SHA17e0ef1ad3997bc4d80ccd215618688d7dd9bcf38
SHA2564c179c8dd0630ac662bcccf07450b16aae1bb7027450a9bef4e889ae3d7fa884
SHA512d9908fb3280705789a4d37dd66882adcea5eced2412b2665736a7cb80e034bfa04bf3eb5762d8d1b72905d3915039d36dd909669076275c3a1414a849d869d11
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56a6ecd7813f717d9ccc162092b1c7ad2
SHA1eba46a7041db2e1fb1138fc572dd2457f601d67e
SHA2568a6ab61f88ba992da7e98bfe4fb18958f30ece7ab532136d1d6a70e862641089
SHA5127bd002d283c648b30d22699a475af53b0b7efd8138d374af1a1b12cf0bcd3341b4c1754258f79f6a0bdd8de55708c9995c2b9bed61c797b63181f57500fcf19d
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Filesize
4.2MB
MD59bb7358dc8008a63279e0ed08ba31644
SHA1c864335fe66425c93f906c156e7012e6b711db0f
SHA256b440c59fd49d05ddfc6f0705202ab2959125bec85d9f31c5e44322155d56ed14
SHA5128a2f6a1e9646802978d420d4b94739b5b999f6992cc197c2b1ebb8faf7c30e73962b0b6166810914964bf02059605dcfffb65ba25d4fa149fc9fcf15cce95b47
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec