Analysis
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max time kernel
149s -
max time network
152s -
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, 15:53
Static task
static1
Behavioral task
behavioral1
Sample
fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe
Resource
win10v2004-20240412-en
General
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Target
fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe
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Size
4.2MB
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MD5
8465b6d948021b454f089ec9eb7f71fe
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SHA1
1e230cfdb5a9f4101931f2e7cb9afc4ecc2646d5
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SHA256
fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86
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SHA512
4b618090d857731541bf3ef828ab17ca6ae715e15fc4aceab7814c42d33a401a0070dea6e7d789447340031fe54a32cf3df51658020db26bab5c219f53306c9a
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SSDEEP
98304:foZCtMNcIJm/Wi5iI7vKblq/qDx6472PxO1xv/KiJeN:f3OuIEug7vwUGt7S+nKD
Malware Config
Signatures
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Glupteba payload 20 IoCs
resource yara_rule behavioral2/memory/1132-2-0x0000000004040000-0x000000000492B000-memory.dmp family_glupteba behavioral2/memory/1132-3-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2284-53-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2284-54-0x0000000003F40000-0x000000000482B000-memory.dmp family_glupteba behavioral2/memory/1132-87-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2284-137-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2284-236-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1776-237-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1776-251-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1776-256-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1776-260-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1776-264-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1776-268-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1776-272-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1776-276-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1776-280-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1776-284-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1776-288-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1776-292-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1776-296-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4716 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 1776 csrss.exe 5116 injector.exe 2308 windefender.exe 3696 windefender.exe -
resource yara_rule behavioral2/files/0x000400000002a9f1-247.dat upx behavioral2/memory/2308-252-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3696-257-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3696-265-0x0000000000400000-0x00000000008DF000-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\"" fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.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 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 -
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 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe File created C:\Windows\rss\csrss.exe fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.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 4760 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 4388 schtasks.exe 3880 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\@tzres.dll,-222 = "Alaskan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2612 = "Bougainville Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-92 = "Pacific SA Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-384 = "Namibia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.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\@tzres.dll,-932 = "Coordinated Universal Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time" fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-631 = "Tokyo Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2002 = "Cabo Verde Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-962 = "Paraguay Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2571 = "Turks and Caicos 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" fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs 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,-542 = "Myanmar Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time" fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-592 = "Malay Peninsula Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time" fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-211 = "Pacific Daylight Time" windefender.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\ProxyBypass = "1" 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,-2451 = "Saint Pierre Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time" fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-382 = "South Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.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" fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs 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,-501 = "Nepal Daylight Time" fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2162 = "Altai Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-3052 = "Qyzylorda Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4776 powershell.exe 4776 powershell.exe 1132 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe 1132 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe 1464 powershell.exe 1464 powershell.exe 2284 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe 2284 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe 2284 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe 2284 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe 2284 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe 2284 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe 2284 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe 2284 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe 2284 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe 2284 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe 4236 powershell.exe 4236 powershell.exe 2844 powershell.exe 2844 powershell.exe 3136 powershell.exe 3136 powershell.exe 3348 powershell.exe 3348 powershell.exe 4720 powershell.exe 4720 powershell.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 1776 csrss.exe 1776 csrss.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 1776 csrss.exe 1776 csrss.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 1776 csrss.exe 1776 csrss.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe 5116 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4776 powershell.exe Token: SeDebugPrivilege 1132 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe Token: SeImpersonatePrivilege 1132 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe Token: SeDebugPrivilege 1464 powershell.exe Token: SeDebugPrivilege 4236 powershell.exe Token: SeDebugPrivilege 2844 powershell.exe Token: SeDebugPrivilege 3136 powershell.exe Token: SeDebugPrivilege 3348 powershell.exe Token: SeDebugPrivilege 4720 powershell.exe Token: SeSystemEnvironmentPrivilege 1776 csrss.exe Token: SeSecurityPrivilege 4760 sc.exe Token: SeSecurityPrivilege 4760 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1132 wrote to memory of 4776 1132 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe 82 PID 1132 wrote to memory of 4776 1132 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe 82 PID 1132 wrote to memory of 4776 1132 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe 82 PID 2284 wrote to memory of 1464 2284 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe 89 PID 2284 wrote to memory of 1464 2284 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe 89 PID 2284 wrote to memory of 1464 2284 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe 89 PID 2284 wrote to memory of 3384 2284 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe 92 PID 2284 wrote to memory of 3384 2284 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe 92 PID 3384 wrote to memory of 4716 3384 cmd.exe 95 PID 3384 wrote to memory of 4716 3384 cmd.exe 95 PID 2284 wrote to memory of 4236 2284 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe 97 PID 2284 wrote to memory of 4236 2284 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe 97 PID 2284 wrote to memory of 4236 2284 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe 97 PID 2284 wrote to memory of 2844 2284 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe 99 PID 2284 wrote to memory of 2844 2284 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe 99 PID 2284 wrote to memory of 2844 2284 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe 99 PID 2284 wrote to memory of 1776 2284 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe 101 PID 2284 wrote to memory of 1776 2284 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe 101 PID 2284 wrote to memory of 1776 2284 fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe 101 PID 1776 wrote to memory of 3136 1776 csrss.exe 102 PID 1776 wrote to memory of 3136 1776 csrss.exe 102 PID 1776 wrote to memory of 3136 1776 csrss.exe 102 PID 1776 wrote to memory of 3348 1776 csrss.exe 108 PID 1776 wrote to memory of 3348 1776 csrss.exe 108 PID 1776 wrote to memory of 3348 1776 csrss.exe 108 PID 1776 wrote to memory of 4720 1776 csrss.exe 110 PID 1776 wrote to memory of 4720 1776 csrss.exe 110 PID 1776 wrote to memory of 4720 1776 csrss.exe 110 PID 1776 wrote to memory of 5116 1776 csrss.exe 112 PID 1776 wrote to memory of 5116 1776 csrss.exe 112 PID 2308 wrote to memory of 4120 2308 windefender.exe 118 PID 2308 wrote to memory of 4120 2308 windefender.exe 118 PID 2308 wrote to memory of 4120 2308 windefender.exe 118 PID 4120 wrote to memory of 4760 4120 cmd.exe 119 PID 4120 wrote to memory of 4760 4120 cmd.exe 119 PID 4120 wrote to memory of 4760 4120 cmd.exe 119 -
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\fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe"C:\Users\Admin\AppData\Local\Temp\fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1132 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4776
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C:\Users\Admin\AppData\Local\Temp\fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.exe"C:\Users\Admin\AppData\Local\Temp\fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86.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:2284 -
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:1464
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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:3384 -
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:4716
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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:4236
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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:2844
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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:1776 -
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:3136
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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:4512
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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:3348
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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:4720
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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:5116
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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:3880
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2308 -
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:4120 -
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:4760
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3696
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
MD526d5f31f7aae3a4a01f83539553e6b08
SHA1bff33d62ef8438584cac3c8d8f6fff465aaba4f4
SHA256e1fee00cb5b15b5fcec84570df97ca3cc87e49c88056860d990e43f532df1eb8
SHA512c53a1727ea3fb0001ff6e6d12075fab2adde5af92569b0b90864da6283d389eafb0b73e11f4adf670a2d0205cd86ed90beb97c6f19843b964528d152de99fe77
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55f8a2875f394f0fb0fb2d19e5cdfa5b9
SHA17ba18884934c7e457c97879ae6feafc0c3eac66a
SHA256beb2fcb26d1bae006d1c7a8f84bdeb27dd4477cdbfb2fa722b803c5e593c0717
SHA512c350613386c8b83d583b52f2295ccac67d36eeda7b0e111a1f04f565cdda6d6a7a5a6f2e789188f972c01d4e7d7a9870e8a06747e7059ac158485ba325bb7b1e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5bea9989f26815698234d4a7bb288b758
SHA183a4c31c1ccd3ad3895ab91056b3978c807d11b8
SHA256b59001260667ab8bdee0bc25dc3fe74dd1b7100e57013ddbeba97e21623615b4
SHA512752b7ceb1f95f87e6df62beeb7ebbb8a47760fc648a4856b244c913ab05c473f8da5f15e8f913617a9508a41111ca6a315cfec86e0101739cf819d6c185fac84
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d51acc9577c78dca3bb7006b2d2fc78d
SHA177f80a3d0826643130b44b2619d057e471dda1f9
SHA256e495524be3c7736778c366b639cc22950fce02ce29c2eb917761e06747b284e1
SHA51254bb64906f44c7d51741dcf608b2522bfe467b41593494a923d7d2152479dd28993b52515bcf15a7df39a3d1da51fbcf8d2abd2b8565f7d1ae7ebbdf3ee50ce7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5aa1fbdddbed816e1355a4d28ee16d35f
SHA1f7ea5fa4090e8664c3c1e2e26c7f3578ef0078c7
SHA256956eb75df1d57b1d2879a965c66dfd085a9ef16927db1b737fc26fe6be69b21d
SHA512441f28998fda71e5f16adf6a1af292747eac1b3dbc243121038640b7e872fbc68e78adf33844d173897d844bdbc9226f0e46372edbcba2471c0b70261c8464f6
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Filesize
4.2MB
MD58465b6d948021b454f089ec9eb7f71fe
SHA11e230cfdb5a9f4101931f2e7cb9afc4ecc2646d5
SHA256fb7dcb6f17bc73e51dc9629e34163174f3931dbca95305d6bf18543f5cb9ec86
SHA5124b618090d857731541bf3ef828ab17ca6ae715e15fc4aceab7814c42d33a401a0070dea6e7d789447340031fe54a32cf3df51658020db26bab5c219f53306c9a
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec