Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
20-05-2024 06:08
Static task
static1
Behavioral task
behavioral1
Sample
c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe
Resource
win7-20240221-en
General
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Target
c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe
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Size
4.1MB
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MD5
bfdcd054dc39209e7aa494194c41cd68
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SHA1
b384b9076668c6da2ddc756d50e8fdaf75014933
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SHA256
c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2
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SHA512
f1bd66a230540d33f580be662e2f84750d77b1e0329127bf49207088746901bb831755aaaf000b48ce5645455433c4a80cddbf1237f0867b9b5cdfad8cf0f718
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SSDEEP
98304:+k/C6baF9NNXYvR+SQPyohxfWe3/GY9pAEj6P:+n6bazjovoyoHfX3/GYH4
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/4304-2-0x0000000004440000-0x0000000004D2B000-memory.dmp family_glupteba behavioral2/memory/4304-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4304-55-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4304-54-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/4304-57-0x0000000004440000-0x0000000004D2B000-memory.dmp family_glupteba behavioral2/memory/2388-134-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2024-219-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2024-220-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2024-221-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2024-222-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2024-223-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2024-224-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2024-225-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2024-226-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2024-227-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2024-228-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2024-229-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2024-230-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2024-231-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 1444 netsh.exe -
Executes dropped EXE 2 IoCs
Processes:
csrss.exeinjector.exepid Process 2024 csrss.exe 4940 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Set value (str) \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\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 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 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:
c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe -
Drops file in Windows directory 2 IoCs
Processes:
c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exedescription ioc Process File opened for modification C:\Windows\rss c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe File created C:\Windows\rss\csrss.exe c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 3392 powershell.exe 4316 powershell.exe 2856 powershell.exe 1036 powershell.exe 5104 powershell.exe 4040 powershell.exe 3976 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 4052 schtasks.exe 1268 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exec1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.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\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.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\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople 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,-1912 = "Russia TZ 10 Standard Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.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,-741 = "New Zealand Daylight Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exec1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exepowershell.exec1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 4040 powershell.exe 4040 powershell.exe 4304 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe 4304 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe 3976 powershell.exe 3976 powershell.exe 2388 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe 2388 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe 2388 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe 2388 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe 2388 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe 2388 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe 2388 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe 2388 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe 2388 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe 2388 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe 3392 powershell.exe 3392 powershell.exe 3392 powershell.exe 4316 powershell.exe 4316 powershell.exe 4316 powershell.exe 2856 powershell.exe 2856 powershell.exe 1036 powershell.exe 1036 powershell.exe 5104 powershell.exe 5104 powershell.exe 4940 injector.exe 4940 injector.exe 4940 injector.exe 4940 injector.exe 4940 injector.exe 4940 injector.exe 2024 csrss.exe 2024 csrss.exe 4940 injector.exe 4940 injector.exe 4940 injector.exe 4940 injector.exe 4940 injector.exe 4940 injector.exe 2024 csrss.exe 2024 csrss.exe 4940 injector.exe 4940 injector.exe 4940 injector.exe 4940 injector.exe 4940 injector.exe 4940 injector.exe 4940 injector.exe 4940 injector.exe 4940 injector.exe 4940 injector.exe 4940 injector.exe 4940 injector.exe 4940 injector.exe 4940 injector.exe 4940 injector.exe 4940 injector.exe 4940 injector.exe 4940 injector.exe 4940 injector.exe 4940 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
Processes:
powershell.exec1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exedescription pid Process Token: SeDebugPrivilege 4040 powershell.exe Token: SeDebugPrivilege 4304 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Token: SeImpersonatePrivilege 4304 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe Token: SeDebugPrivilege 3976 powershell.exe Token: SeDebugPrivilege 3392 powershell.exe Token: SeDebugPrivilege 4316 powershell.exe Token: SeDebugPrivilege 2856 powershell.exe Token: SeDebugPrivilege 1036 powershell.exe Token: SeDebugPrivilege 5104 powershell.exe Token: SeSystemEnvironmentPrivilege 2024 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exec1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.execmd.execsrss.exedescription pid Process procid_target PID 4304 wrote to memory of 4040 4304 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe 83 PID 4304 wrote to memory of 4040 4304 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe 83 PID 4304 wrote to memory of 4040 4304 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe 83 PID 2388 wrote to memory of 3976 2388 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe 94 PID 2388 wrote to memory of 3976 2388 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe 94 PID 2388 wrote to memory of 3976 2388 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe 94 PID 2388 wrote to memory of 3488 2388 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe 98 PID 2388 wrote to memory of 3488 2388 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe 98 PID 3488 wrote to memory of 1444 3488 cmd.exe 100 PID 3488 wrote to memory of 1444 3488 cmd.exe 100 PID 2388 wrote to memory of 3392 2388 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe 103 PID 2388 wrote to memory of 3392 2388 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe 103 PID 2388 wrote to memory of 3392 2388 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe 103 PID 2388 wrote to memory of 4316 2388 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe 107 PID 2388 wrote to memory of 4316 2388 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe 107 PID 2388 wrote to memory of 4316 2388 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe 107 PID 2388 wrote to memory of 2024 2388 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe 110 PID 2388 wrote to memory of 2024 2388 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe 110 PID 2388 wrote to memory of 2024 2388 c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe 110 PID 2024 wrote to memory of 2856 2024 csrss.exe 111 PID 2024 wrote to memory of 2856 2024 csrss.exe 111 PID 2024 wrote to memory of 2856 2024 csrss.exe 111 PID 2024 wrote to memory of 1036 2024 csrss.exe 116 PID 2024 wrote to memory of 1036 2024 csrss.exe 116 PID 2024 wrote to memory of 1036 2024 csrss.exe 116 PID 2024 wrote to memory of 5104 2024 csrss.exe 119 PID 2024 wrote to memory of 5104 2024 csrss.exe 119 PID 2024 wrote to memory of 5104 2024 csrss.exe 119 PID 2024 wrote to memory of 4940 2024 csrss.exe 121 PID 2024 wrote to memory of 4940 2024 csrss.exe 121 -
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\c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe"C:\Users\Admin\AppData\Local\Temp\c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4304 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4040
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C:\Users\Admin\AppData\Local\Temp\c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.exe"C:\Users\Admin\AppData\Local\Temp\c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2.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:2388 -
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:3976
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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:3488 -
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:1444
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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:3392
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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:4316
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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:2024 -
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:2856
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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:4052
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:744
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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:1036
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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:5104
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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:4940
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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:1268
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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
MD58f92e8e1c57cd8bcbcd56de0e075085e
SHA11aa86842113fd1b019b02675458dc90af1605c9f
SHA256963be6accab9ff9035ebd4cc10c78a1cd7a0863d46b707e7a0f391eaff876f05
SHA512e638bf92c14dc5b90af5a0f6c47373e178946d116b7ab60334f083c95d8df29d5356be879c2544086192d49fb0047584db98b3d447e4da2d4a3470ea501759b5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD552e82a6a4569b2f6f3faad6627db1fa3
SHA13ddec3e29649cec50b7157a5d2e67ea0ed9e9384
SHA256b176bde2dba8a8d252d6b765155b3c0246b941a9f4fdcae66c8695fc16ec4f9d
SHA5122f379de7ef20d1e132103aa90160113dc5c76f2e7c50bf10ec161f536ced70f30fb5bc2aa77814fb291d68b08c0e93b53fe2d94dde50a5758e96c6b118928012
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59e6ee2ab1a9a7e581ba63d9f58b87b75
SHA16aeb218d25d46e56e38739e0db87ade94f063baf
SHA2567a248fc3b4f4a8a2eabfc646fa4ebb4be6fd6723ed07cf9e371a3693a5767cb1
SHA512304f2af845a4b4e93440403db20420b9edba7b22814ad9f2f8f1acb7bb19eac89516619c2da1433eee191a2734b1a3a8e51afad63a427f214c8f20a3c23212a4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56662031b6da37e202fa17a88a82c622a
SHA1dff440e17c8103dc04d18abdce15215a49630f9c
SHA25635cb9e0a717f90f536e4f41f7716000a28e8cf2608962f1fc5c31c9b6a1ae311
SHA512975b7abdf359817dcf29422c1168a47a0a847c8d5afc0a799efc0f1064ceb303a06d7c62a94f1229fd3ef67b930ee88e03b657a1bc3f699da5f8d11aed7307b6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD514c1dca9a45962d1ad7dab65d06a6324
SHA1a97786ed7c755dc68a1216461a26e880b2e61228
SHA256ea79e1cb9f52d0939a3422e85ed4874aed8bd5f596d676fb53c9492db6460f44
SHA512dc5ce0a2c0d39455b8437ef30ccad7956e508423cd41c1ba58c285ad7bae64fab90491c6a10250d1a71f1c59e6f75e81fca585d839fa58ae37eeb8e2e0c7c10f
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Filesize
4.1MB
MD5bfdcd054dc39209e7aa494194c41cd68
SHA1b384b9076668c6da2ddc756d50e8fdaf75014933
SHA256c1294b82b257fcd3d2238d1e7b53dab6f180411c7e0ec52eb4d4e4a2855822a2
SHA512f1bd66a230540d33f580be662e2f84750d77b1e0329127bf49207088746901bb831755aaaf000b48ce5645455433c4a80cddbf1237f0867b9b5cdfad8cf0f718