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Analysis
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max time kernel
151s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
06/10/2023, 04:55
Static task
static1
General
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Target
d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe
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Size
4.2MB
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MD5
f3158a6df0ae23abc8aa58a794d6e833
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SHA1
4e0087ef53de76bec282be089e3707794986bca2
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SHA256
d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436
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SHA512
accd799a0faee4b2a0b67c27877debf9a9d5d8aa865664859dc04cbaf4d968f51b3e143d111056d3026e7dbc4bad39b13b8b03efbd6ca9a1f3ae61c6f05ab6e4
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SSDEEP
98304:xF10jpaWsugxMhTbI3iyxger++TzsWgXZ7Un:V0jUIHhTXIge5EjXZK
Malware Config
Signatures
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Glupteba payload 20 IoCs
resource yara_rule behavioral1/memory/2304-2-0x0000000004850000-0x000000000513B000-memory.dmp family_glupteba behavioral1/memory/2304-3-0x0000000000400000-0x0000000002675000-memory.dmp family_glupteba behavioral1/memory/2304-9-0x0000000000400000-0x0000000002675000-memory.dmp family_glupteba behavioral1/memory/2304-24-0x0000000004850000-0x000000000513B000-memory.dmp family_glupteba behavioral1/memory/2304-35-0x0000000000400000-0x0000000002675000-memory.dmp family_glupteba behavioral1/memory/2304-59-0x0000000000400000-0x0000000002675000-memory.dmp family_glupteba behavioral1/memory/1432-62-0x0000000000400000-0x0000000002675000-memory.dmp family_glupteba behavioral1/memory/1432-78-0x0000000000400000-0x0000000002675000-memory.dmp family_glupteba behavioral1/memory/1432-91-0x0000000000400000-0x0000000002675000-memory.dmp family_glupteba behavioral1/memory/1432-100-0x0000000000400000-0x0000000002675000-memory.dmp family_glupteba behavioral1/memory/1432-142-0x0000000000400000-0x0000000002675000-memory.dmp family_glupteba behavioral1/memory/1432-160-0x0000000000400000-0x0000000002675000-memory.dmp family_glupteba behavioral1/memory/924-197-0x0000000000400000-0x0000000002675000-memory.dmp family_glupteba behavioral1/memory/924-245-0x0000000000400000-0x0000000002675000-memory.dmp family_glupteba behavioral1/memory/924-265-0x0000000000400000-0x0000000002675000-memory.dmp family_glupteba behavioral1/memory/924-266-0x0000000000400000-0x0000000002675000-memory.dmp family_glupteba behavioral1/memory/924-267-0x0000000000400000-0x0000000002675000-memory.dmp family_glupteba behavioral1/memory/924-268-0x0000000000400000-0x0000000002675000-memory.dmp family_glupteba behavioral1/memory/924-269-0x0000000000400000-0x0000000002675000-memory.dmp family_glupteba behavioral1/memory/924-270-0x0000000000400000-0x0000000002675000-memory.dmp family_glupteba -
Modifies Windows Firewall 1 TTPs 1 IoCs
pid Process 1280 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 924 csrss.exe 3188 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1574508946-349927670-1185736483-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Set value (str) \REGISTRY\USER\S-1-5-21-1574508946-349927670-1185736483-1000\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 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe File opened for modification C:\Windows\rss d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 2736 2304 WerFault.exe 83 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2748 schtasks.exe 4408 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.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\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs 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\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.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\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3520 powershell.exe 3520 powershell.exe 2304 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe 2304 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe 2084 powershell.exe 2084 powershell.exe 1432 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe 1432 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe 1432 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe 1432 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe 1432 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe 1432 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe 1432 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe 1432 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe 1432 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe 1432 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe 4344 powershell.exe 4344 powershell.exe 4432 powershell.exe 4432 powershell.exe 3896 powershell.exe 3896 powershell.exe 4624 powershell.exe 4624 powershell.exe 1804 powershell.exe 1804 powershell.exe 3188 injector.exe 3188 injector.exe 3188 injector.exe 3188 injector.exe 3188 injector.exe 3188 injector.exe 924 csrss.exe 924 csrss.exe 3188 injector.exe 3188 injector.exe 3188 injector.exe 3188 injector.exe 3188 injector.exe 3188 injector.exe 924 csrss.exe 924 csrss.exe 3188 injector.exe 3188 injector.exe 3188 injector.exe 3188 injector.exe 3188 injector.exe 3188 injector.exe 3188 injector.exe 3188 injector.exe 3188 injector.exe 3188 injector.exe 3188 injector.exe 3188 injector.exe 3188 injector.exe 3188 injector.exe 3188 injector.exe 3188 injector.exe 3188 injector.exe 3188 injector.exe 3188 injector.exe 3188 injector.exe 3188 injector.exe 3188 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 3520 powershell.exe Token: SeDebugPrivilege 2304 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Token: SeImpersonatePrivilege 2304 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe Token: SeDebugPrivilege 2084 powershell.exe Token: SeDebugPrivilege 4344 powershell.exe Token: SeDebugPrivilege 4432 powershell.exe Token: SeDebugPrivilege 3896 powershell.exe Token: SeDebugPrivilege 4624 powershell.exe Token: SeDebugPrivilege 1804 powershell.exe Token: SeSystemEnvironmentPrivilege 924 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2304 wrote to memory of 3520 2304 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe 90 PID 2304 wrote to memory of 3520 2304 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe 90 PID 2304 wrote to memory of 3520 2304 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe 90 PID 1432 wrote to memory of 2084 1432 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe 103 PID 1432 wrote to memory of 2084 1432 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe 103 PID 1432 wrote to memory of 2084 1432 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe 103 PID 1432 wrote to memory of 2072 1432 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe 106 PID 1432 wrote to memory of 2072 1432 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe 106 PID 2072 wrote to memory of 1280 2072 cmd.exe 108 PID 2072 wrote to memory of 1280 2072 cmd.exe 108 PID 1432 wrote to memory of 4344 1432 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe 109 PID 1432 wrote to memory of 4344 1432 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe 109 PID 1432 wrote to memory of 4344 1432 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe 109 PID 1432 wrote to memory of 4432 1432 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe 111 PID 1432 wrote to memory of 4432 1432 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe 111 PID 1432 wrote to memory of 4432 1432 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe 111 PID 1432 wrote to memory of 924 1432 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe 113 PID 1432 wrote to memory of 924 1432 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe 113 PID 1432 wrote to memory of 924 1432 d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe 113 PID 924 wrote to memory of 3896 924 csrss.exe 114 PID 924 wrote to memory of 3896 924 csrss.exe 114 PID 924 wrote to memory of 3896 924 csrss.exe 114 PID 924 wrote to memory of 4624 924 csrss.exe 118 PID 924 wrote to memory of 4624 924 csrss.exe 118 PID 924 wrote to memory of 4624 924 csrss.exe 118 PID 924 wrote to memory of 1804 924 csrss.exe 122 PID 924 wrote to memory of 1804 924 csrss.exe 122 PID 924 wrote to memory of 1804 924 csrss.exe 122 PID 924 wrote to memory of 3188 924 csrss.exe 124 PID 924 wrote to memory of 3188 924 csrss.exe 124 -
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\d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe"C:\Users\Admin\AppData\Local\Temp\d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2304 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3520
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C:\Users\Admin\AppData\Local\Temp\d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.exe"C:\Users\Admin\AppData\Local\Temp\d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436.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:1432 -
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:2084
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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:2072 -
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:1280
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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:4344
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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:4432
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- Manipulates WinMonFS driver.
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:924 -
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:3896
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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:2748
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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:4624
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2948
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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:1804
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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:3188
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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:4408
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2304 -s 9002⤵
- Program crash
PID:2736
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 2304 -ip 23041⤵PID:3492
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
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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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5511ab874db24a56f75ceb625e91fc099
SHA1fa78fe3b63163092d2606335bacbc9e22951755a
SHA2565a514806d1e4de899deaf9f717dccf0684028fee60b337be0e19b56aa096ee5c
SHA512831566829f8aca4b248ffe1aff672930ff64db2bda39e2358364f24b364be83e2c578dbf1a58e6449cf6623fa30c751e764d5a4fac8ce37b8894f77ad506031d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54d1d5c00e67beef8d96fe449eb1dbb3e
SHA1d8cfcbbe57e7dea3516fac0c8cfcbe16f17a4229
SHA256ae96019e22720612d63544b0f7467fbc84e84218a12149b3b2d2eec9ed0a7d45
SHA512b4516d45a912656436546bd83f5f6e76c8ea9d81057ad91313d55b6d7734e699425313f866adfd98ab46e2785d142e74db3ffb1a10a542bfdd3a7d19fcbe6a01
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b0e3f8cea255b089f8eca2ada361e5de
SHA1026a49fcae81eac376b99eccc35100f407a1577c
SHA256efe35861f5a860fd61b0227b460fd3839737a77a6fd3223a43b271d42ea877eb
SHA5123632f3deeb4181fbdf3c2675d9c195b7981e9d6eb7b469fe7922520799e3b8db615efa240c043830d507a48c24c39cbb50e2a1bf6953b2f374b0d57f136ec819
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f56345305d2039ed561a8687edc75a9b
SHA1884048000479731faaef83f4e56c6e539693c1c7
SHA25656a74f5f266fdd6a875c52dbd163931e320473bd0a4fffb53995629aaf2f901c
SHA512279225c516ec901fe5c4a30accc5c1016b81172fed189c239cc4150c1883028c684b284260d96d22b4260579838f80fda116abb3932a0293d94eef743f838442
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD590e938ab7c7e376b5c947418fb0f8129
SHA1721b3fb2895af1585174ede8fe59235de4920ccc
SHA25695ecf25ab0523585042114ccc91e2bcb79797dcd03bcd945fc94f4cb36c67524
SHA512f83830e50ef01f2447e483ca484ffe74c1e31a99e052b78c995b1dd3fe9077658bf79ba81b5da50e9a00dc1564d121fec66de3e3c586e9978a6009ac048f21cd
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Filesize
4.2MB
MD5f3158a6df0ae23abc8aa58a794d6e833
SHA14e0087ef53de76bec282be089e3707794986bca2
SHA256d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436
SHA512accd799a0faee4b2a0b67c27877debf9a9d5d8aa865664859dc04cbaf4d968f51b3e143d111056d3026e7dbc4bad39b13b8b03efbd6ca9a1f3ae61c6f05ab6e4
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Filesize
4.2MB
MD5f3158a6df0ae23abc8aa58a794d6e833
SHA14e0087ef53de76bec282be089e3707794986bca2
SHA256d90a1ace2b650839188b87bad44aa97a4cabb290d344b4e0cedac82bf40ee436
SHA512accd799a0faee4b2a0b67c27877debf9a9d5d8aa865664859dc04cbaf4d968f51b3e143d111056d3026e7dbc4bad39b13b8b03efbd6ca9a1f3ae61c6f05ab6e4