Analysis
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max time kernel
149s -
max time network
123s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-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 19 IoCs
Processes:
resource yara_rule behavioral1/memory/5044-2-0x0000000002D60000-0x000000000364B000-memory.dmp family_glupteba behavioral1/memory/5044-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/5020-56-0x0000000002DB0000-0x000000000369B000-memory.dmp family_glupteba behavioral1/memory/5044-82-0x0000000002D60000-0x000000000364B000-memory.dmp family_glupteba behavioral1/memory/5044-107-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/5020-158-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4124-216-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4124-220-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4124-224-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4124-227-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4124-230-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4124-233-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4124-236-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4124-238-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4124-242-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4124-245-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4124-248-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4124-251-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4124-253-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 1880 netsh.exe -
Executes dropped EXE 2 IoCs
Processes:
csrss.exeinjector.exepid Process 4124 csrss.exe 3340 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
csrss.exeda2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
Processes:
csrss.exedescription ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
Processes:
da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe -
Drops file in Windows directory 2 IoCs
Processes:
da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exedescription ioc Process File created C:\Windows\rss\csrss.exe da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe File opened for modification C:\Windows\rss da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 2824 powershell.exe 944 powershell.exe 3712 powershell.exe 2288 powershell.exe 2128 powershell.exe 3080 powershell.exe 4840 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 2972 schtasks.exe 3820 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exepowershell.exepowershell.exeda2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exepowershell.exepowershell.exepowershell.exedescription ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot 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,-2002 = "Cabo Verde Standard Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.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,-211 = "Pacific Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs 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,-1662 = "Bahia Standard Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.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\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed 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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time" da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.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 -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exeda2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exepowershell.exeda2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 3712 powershell.exe 3712 powershell.exe 5044 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 5044 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 2288 powershell.exe 2288 powershell.exe 2288 powershell.exe 5020 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 5020 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 5020 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 5020 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 5020 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 5020 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 5020 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 5020 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 5020 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 5020 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 2128 powershell.exe 2128 powershell.exe 2128 powershell.exe 3080 powershell.exe 3080 powershell.exe 4840 powershell.exe 4840 powershell.exe 4840 powershell.exe 2824 powershell.exe 2824 powershell.exe 2824 powershell.exe 944 powershell.exe 944 powershell.exe 944 powershell.exe 3340 injector.exe 3340 injector.exe 3340 injector.exe 3340 injector.exe 3340 injector.exe 3340 injector.exe 4124 csrss.exe 4124 csrss.exe 3340 injector.exe 3340 injector.exe 3340 injector.exe 3340 injector.exe 3340 injector.exe 3340 injector.exe 4124 csrss.exe 4124 csrss.exe 3340 injector.exe 3340 injector.exe 3340 injector.exe 3340 injector.exe 3340 injector.exe 3340 injector.exe 3340 injector.exe 3340 injector.exe 3340 injector.exe 3340 injector.exe 3340 injector.exe 3340 injector.exe 3340 injector.exe 3340 injector.exe 3340 injector.exe 3340 injector.exe 3340 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
Processes:
powershell.exeda2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exedescription pid Process Token: SeDebugPrivilege 3712 powershell.exe Token: SeDebugPrivilege 5044 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Token: SeImpersonatePrivilege 5044 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe Token: SeDebugPrivilege 2288 powershell.exe Token: SeDebugPrivilege 2128 powershell.exe Token: SeDebugPrivilege 3080 powershell.exe Token: SeDebugPrivilege 4840 powershell.exe Token: SeDebugPrivilege 2824 powershell.exe Token: SeDebugPrivilege 944 powershell.exe Token: SeSystemEnvironmentPrivilege 4124 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exeda2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.execmd.execsrss.exedescription pid Process procid_target PID 5044 wrote to memory of 3712 5044 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 89 PID 5044 wrote to memory of 3712 5044 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 89 PID 5044 wrote to memory of 3712 5044 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 89 PID 5020 wrote to memory of 2288 5020 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 99 PID 5020 wrote to memory of 2288 5020 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 99 PID 5020 wrote to memory of 2288 5020 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 99 PID 5020 wrote to memory of 3612 5020 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 104 PID 5020 wrote to memory of 3612 5020 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 104 PID 3612 wrote to memory of 1880 3612 cmd.exe 106 PID 3612 wrote to memory of 1880 3612 cmd.exe 106 PID 5020 wrote to memory of 2128 5020 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 107 PID 5020 wrote to memory of 2128 5020 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 107 PID 5020 wrote to memory of 2128 5020 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 107 PID 5020 wrote to memory of 3080 5020 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 109 PID 5020 wrote to memory of 3080 5020 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 109 PID 5020 wrote to memory of 3080 5020 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 109 PID 5020 wrote to memory of 4124 5020 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 111 PID 5020 wrote to memory of 4124 5020 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 111 PID 5020 wrote to memory of 4124 5020 da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332.exe 111 PID 4124 wrote to memory of 4840 4124 csrss.exe 112 PID 4124 wrote to memory of 4840 4124 csrss.exe 112 PID 4124 wrote to memory of 4840 4124 csrss.exe 112 PID 4124 wrote to memory of 2824 4124 csrss.exe 118 PID 4124 wrote to memory of 2824 4124 csrss.exe 118 PID 4124 wrote to memory of 2824 4124 csrss.exe 118 PID 4124 wrote to memory of 944 4124 csrss.exe 120 PID 4124 wrote to memory of 944 4124 csrss.exe 120 PID 4124 wrote to memory of 944 4124 csrss.exe 120 PID 4124 wrote to memory of 3340 4124 csrss.exe 122 PID 4124 wrote to memory of 3340 4124 csrss.exe 122 -
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:5044 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3712
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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:5020 -
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:2288
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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:3612 -
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:1880
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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:2128
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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:3080
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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:4124 -
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:4840
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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:2972
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:456
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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:2824
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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:944
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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:3340
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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:3820
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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
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f3b19176366c34844bdfbd63a409a466
SHA174f3e1bd21eefe9320df515d4797bc419dcce1eb
SHA25671e66f0bd6af7aa7a74510a0740255cb180bcfcd3e8be7b27bd9efc5bf02c21b
SHA51233a7f023cb99b6841c4db22d67f3a78641fe3e57ecbb9a13d1b99bf4651d29526c003bc9e6bfe29b23216c516b598a34a9b70778114d5ea72721b674e5063fe1
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56ac0f6f1a0207f32721b2a682b1b4982
SHA134daeebd59af2c011b685214b55cc5f603475935
SHA256b08f6a16ad5fa8047d1c285ffec849a9567bea38159de84b2d6bef4a316af246
SHA51203aec95120d2a6888c19f1e9fbaaea992a05a07654bf6a4e12101a9983846fcee15e0595367be9ea14d4d71fefd70db1ae5074ea487b063c966e6a6cf49d08f9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD591c0385b307695722ef5ec108cd5b20b
SHA1432edd112cf497b6e956d11b0becd8654122b649
SHA256d906587daad2b410d28c0ce275847f35a03a57683528434748337a17f010d925
SHA51200fb2219f2e55cb4eb0a94247111878b68f9f1f10348378511509f145fd072f487c997bf546d2edd24dbbcfbb03c3902c707dc14824cfcda4d285edc4b1a4529
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ed29c19ba79a606ef14967e21f3e3f2a
SHA188190c9beb3addf680c5ba5a469604b0ba84638a
SHA256a399a23edd8556234ac6f17e380dfa72843053ee3c64e7259139b6a587234541
SHA51222fa45b0917fcd241c8c2a792ef2b7933cb1fa33ee6424af7799ee57bbebbaa32429ea23aad800c096a347c68a2b73e1ab47040ea81e1790373caee80aed7e74
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5069d367748394148b0251383186d1dd9
SHA1f6b36488604b80e99875153bc17640abaedf49bf
SHA2566f20046788fb6a30c48d5fd9408f7852bde37f739792f8e1a12cf6adead4659b
SHA51283d82fe6903069796a0916336dadb5c65bf81d2dbb0a68ae81e393c9a151541bcbb5fdaf96dba4e4d5ddbda628a668953f16b6b1798b894b43aeeeab2f8485b1
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Filesize
4.1MB
MD5e4ced2a833171d359d256d3e10a01eed
SHA188fca15424e35c197d6c51f46ce97f94e21dfd89
SHA256da2e521c8791f424f2dc5ec7720926efdcf2b30066f2d210ec3dfd0193672332
SHA5126d31f00ea9110abf048d5499a163d9e1c033383a37b17003aeddbcde0a48803dc040f085639c60dcb999bd85a06e1f87e4e75c20303fc45ad5840616a41ce315