Analysis
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max time kernel
150s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
16-05-2024 09:46
Static task
static1
Behavioral task
behavioral1
Sample
da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe
Resource
win10v2004-20240426-en
General
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Target
da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe
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Size
4.1MB
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MD5
e4ced2a833171d359d256d3e10a01eed
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SHA1
88fca15424e35c197d6c51f46ce97f94e21dfd89
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SHA256
da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332
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SHA512
6d31f00ea9110abf048d5499a163d9e1c033383a37b17003aeddbcde0a48803dc040f085639c60dcb999bd85a06e1f87e4e75c20303fc45ad5840616a41ce315
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SSDEEP
98304:NH49zrfgobu9aDMWAg4dPDb/NQHvakIF/A8L3rqLZk5t2qZ3qL2LAZ5z:Er7OagDbOPW/F2k5tRZaLrF
Malware Config
Signatures
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Glupteba payload 17 IoCs
Processes:
resource yara_rule behavioral2/memory/760-2-0x0000000002E20000-0x000000000370B000-memory.dmp family_glupteba behavioral2/memory/760-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/760-76-0x0000000002E20000-0x000000000370B000-memory.dmp family_glupteba behavioral2/memory/760-74-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4968-127-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2352-195-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2352-204-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2352-207-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2352-210-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2352-213-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2352-216-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2352-219-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2352-222-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2352-225-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2352-228-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2352-231-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2352-234-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 2748 netsh.exe -
Executes dropped EXE 2 IoCs
Processes:
csrss.exeinjector.exepid Process 2352 csrss.exe 4040 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
Processes:
csrss.exedescription ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
Processes:
da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe -
Drops file in Windows directory 2 IoCs
Processes:
da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exedescription ioc Process File opened for modification C:\Windows\rss da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe File created C:\Windows\rss\csrss.exe da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 3580 powershell.exe 3372 powershell.exe 1884 powershell.exe 2448 powershell.exe 380 powershell.exe 2820 powershell.exe 1460 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid Process 4772 schtasks.exe 4724 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople 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\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exeda2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exepowershell.exeda2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 3580 powershell.exe 3580 powershell.exe 760 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 760 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 3372 powershell.exe 3372 powershell.exe 4968 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 4968 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 4968 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 4968 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 4968 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 4968 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 4968 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 4968 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 4968 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 4968 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 1884 powershell.exe 1884 powershell.exe 2448 powershell.exe 2448 powershell.exe 380 powershell.exe 380 powershell.exe 2820 powershell.exe 2820 powershell.exe 1460 powershell.exe 1460 powershell.exe 4040 injector.exe 4040 injector.exe 4040 injector.exe 4040 injector.exe 4040 injector.exe 4040 injector.exe 4040 injector.exe 4040 injector.exe 2352 csrss.exe 2352 csrss.exe 4040 injector.exe 4040 injector.exe 4040 injector.exe 4040 injector.exe 2352 csrss.exe 2352 csrss.exe 4040 injector.exe 4040 injector.exe 4040 injector.exe 4040 injector.exe 4040 injector.exe 4040 injector.exe 4040 injector.exe 4040 injector.exe 4040 injector.exe 4040 injector.exe 4040 injector.exe 4040 injector.exe 4040 injector.exe 4040 injector.exe 4040 injector.exe 4040 injector.exe 4040 injector.exe 4040 injector.exe 4040 injector.exe 4040 injector.exe 4040 injector.exe 4040 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
Processes:
powershell.exeda2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exedescription pid Process Token: SeDebugPrivilege 3580 powershell.exe Token: SeDebugPrivilege 760 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Token: SeImpersonatePrivilege 760 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Token: SeDebugPrivilege 3372 powershell.exe Token: SeDebugPrivilege 1884 powershell.exe Token: SeDebugPrivilege 2448 powershell.exe Token: SeDebugPrivilege 380 powershell.exe Token: SeDebugPrivilege 2820 powershell.exe Token: SeDebugPrivilege 1460 powershell.exe Token: SeSystemEnvironmentPrivilege 2352 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exeda2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.execmd.execsrss.exedescription pid Process procid_target PID 760 wrote to memory of 3580 760 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 78 PID 760 wrote to memory of 3580 760 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 78 PID 760 wrote to memory of 3580 760 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 78 PID 4968 wrote to memory of 3372 4968 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 83 PID 4968 wrote to memory of 3372 4968 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 83 PID 4968 wrote to memory of 3372 4968 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 83 PID 4968 wrote to memory of 3512 4968 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 85 PID 4968 wrote to memory of 3512 4968 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 85 PID 3512 wrote to memory of 2748 3512 cmd.exe 87 PID 3512 wrote to memory of 2748 3512 cmd.exe 87 PID 4968 wrote to memory of 1884 4968 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 88 PID 4968 wrote to memory of 1884 4968 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 88 PID 4968 wrote to memory of 1884 4968 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 88 PID 4968 wrote to memory of 2448 4968 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 90 PID 4968 wrote to memory of 2448 4968 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 90 PID 4968 wrote to memory of 2448 4968 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 90 PID 4968 wrote to memory of 2352 4968 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 92 PID 4968 wrote to memory of 2352 4968 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 92 PID 4968 wrote to memory of 2352 4968 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 92 PID 2352 wrote to memory of 380 2352 csrss.exe 93 PID 2352 wrote to memory of 380 2352 csrss.exe 93 PID 2352 wrote to memory of 380 2352 csrss.exe 93 PID 2352 wrote to memory of 2820 2352 csrss.exe 99 PID 2352 wrote to memory of 2820 2352 csrss.exe 99 PID 2352 wrote to memory of 2820 2352 csrss.exe 99 PID 2352 wrote to memory of 1460 2352 csrss.exe 101 PID 2352 wrote to memory of 1460 2352 csrss.exe 101 PID 2352 wrote to memory of 1460 2352 csrss.exe 101 PID 2352 wrote to memory of 4040 2352 csrss.exe 103 PID 2352 wrote to memory of 4040 2352 csrss.exe 103 -
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\da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe"C:\Users\Admin\AppData\Local\Temp\da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:760 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3580
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C:\Users\Admin\AppData\Local\Temp\da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe"C:\Users\Admin\AppData\Local\Temp\da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.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:4968 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3372
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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:3512 -
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:2748
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1884
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2448
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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:2352 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:380
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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:4772
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2776
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2820
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1460
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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:4040
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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:4724
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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
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5441d666b557a9bfb51cbbe2f0cd90813
SHA11e5e778f7d99009125ab632261f44743e5afa160
SHA25633872e6a5005c6da3a24f64bb4b2ffa44278834a1b27b7f8ad9546a92d74d83b
SHA512351f8e1c13c8c7ec262edac1172576a2ee167f7e13390864e6d62a94634c99e71e2293f9ff2daeef97ef41c654eb966b0fee837269f6937c8bfc1a4d815f6f7e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5affb3054abd559b0f5163a0776c70cd7
SHA1a17cd4e46d448964de94c80912eaf6cc18ceeea7
SHA256cda8e89e557f8045ac9b200814723a18bf622a00826d55429330a15f6134d9b8
SHA5127083c27850092d5e49b00d4413afa2f1c0dbdeb5e22e23b4c7cee8216dd885c4756cb8801984bc232392d26f7d0de14fa89e45377e0d9677aacb5ce3f04b0729
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fd5a8a5102485c08d83f4034e9e405c0
SHA1b448245b2cb1ab761b3392affc1668b9afca62f4
SHA256fe6206839d40da3cb1cfe8e3d04de88330d53ae2e63e45109c252c26f2719e1a
SHA512f9a5f628ded3ed84bb2e7f70345669460a36c83d4b2a15c2f3a9588560e4c3af913a010559548acdc4f966bb383f900b220ee9e317892168239ee3c2964f42f5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5410ba98978d9b0ea16f873b4060bdcec
SHA1fbf8fb38fcc1d1194b8728a656c394c3abc67829
SHA256b2edcf7b1b8b02ab3b07028c3aa08485e2068c69a8514ab8e206b21bf1f9d88a
SHA512664e904307c327682b3dd2eebf2f1bd610f57725aa905bbf9da2d7d433fb816a17568f433ea63ee29c61b276f831356384bf28301b9e16bb2e85dcd0f17a7564
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55d436c1058be3bb85bf0c179d9ab4ebc
SHA1ffb799c5211303b0b96cebc5ad6e63f2dce48be3
SHA2566943dad86123b015104d498df84ad85758da2126bdc6aa7e610d5eaddc4fed3f
SHA512f791b9efc07bf29ab1ff11450c55b4b974eea15c1dba715a41dd7558876e8d94ccca84c593adbbc1e47704d75c46cd0251d12d948991e31229a3ac7988734b05
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Filesize
4.1MB
MD5e4ced2a833171d359d256d3e10a01eed
SHA188fca15424e35c197d6c51f46ce97f94e21dfd89
SHA256da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332
SHA5126d31f00ea9110abf048d5499a163d9e1c033383a37b17003aeddbcde0a48803dc040f085639c60dcb999bd85a06e1f87e4e75c20303fc45ad5840616a41ce315