Analysis
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max time kernel
13s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
22-05-2024 22:45
Static task
static1
Behavioral task
behavioral1
Sample
4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe
Resource
win7-20240221-en
General
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Target
4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe
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Size
4.1MB
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MD5
2389a9e9bcb688f5d8d0a5b5e3f226d0
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SHA1
c9e218555305b5d6a765b2a954f68644743761ca
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SHA256
4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d
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SHA512
201bbdd9ca0eddba8ab41f671721d52cab591892532668c5fa3d8eee3db137c87d85ba78b529bcdb5dc4b66c8fe0e273a3288b435feda10a1091d4da901ed0ec
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SSDEEP
98304:4Z9bi3QNEOtUId2petU9sYIhWVMAA4+HC:R303UIApyYIhWVMEf
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/4036-2-0x0000000004D10000-0x00000000055FB000-memory.dmp family_glupteba behavioral2/memory/4036-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4036-56-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4036-54-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4036-57-0x0000000004D10000-0x00000000055FB000-memory.dmp family_glupteba behavioral2/memory/2448-217-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3128-218-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3128-220-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3128-222-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3128-224-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3128-226-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3128-228-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3128-230-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3128-232-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3128-234-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3128-236-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3128-238-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3128-240-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3128-242-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 4616 netsh.exe -
Executes dropped EXE 1 IoCs
Processes:
csrss.exepid Process 3128 csrss.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.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\"" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.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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Drops file in System32 directory 5 IoCs
Processes:
powershell.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 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:
4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe -
Drops file in Windows directory 2 IoCs
Processes:
4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exedescription ioc Process File opened for modification C:\Windows\rss 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe File created C:\Windows\rss\csrss.exe 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 3856 powershell.exe 1908 powershell.exe 2212 powershell.exe 3796 powershell.exe 4468 powershell.exe 2940 powershell.exe 116 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 2472 schtasks.exe 4524 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exepowershell.exe4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exepowershell.exepowershell.exepowershell.exedescription ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs 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,-401 = "Arabic Daylight Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.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" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.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,-222 = "Alaskan Standard Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root 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,-335 = "Jordan Standard Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed 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,-42 = "E. South America Standard Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.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,-1971 = "Belarus Daylight Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.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,-741 = "New Zealand Daylight Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.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,-2431 = "Cuba Daylight Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.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,-1932 = "Russia TZ 11 Standard Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\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,-1862 = "Russia TZ 6 Standard Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.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" 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 24 IoCs
Processes:
powershell.exe4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exepowershell.exe4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 3856 powershell.exe 3856 powershell.exe 4036 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe 4036 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe 1908 powershell.exe 1908 powershell.exe 2448 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe 2448 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe 2448 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe 2448 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe 2448 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe 2448 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe 2448 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe 2448 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe 2448 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe 2448 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe 2212 powershell.exe 2212 powershell.exe 3796 powershell.exe 3796 powershell.exe 4468 powershell.exe 4468 powershell.exe 2940 powershell.exe 2940 powershell.exe -
Suspicious use of AdjustPrivilegeToken 8 IoCs
Processes:
powershell.exe4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription pid Process Token: SeDebugPrivilege 3856 powershell.exe Token: SeDebugPrivilege 4036 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe Token: SeImpersonatePrivilege 4036 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe Token: SeDebugPrivilege 1908 powershell.exe Token: SeDebugPrivilege 2212 powershell.exe Token: SeDebugPrivilege 3796 powershell.exe Token: SeDebugPrivilege 4468 powershell.exe Token: SeDebugPrivilege 2940 powershell.exe -
Suspicious use of WriteProcessMemory 25 IoCs
Processes:
4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.execmd.execsrss.exedescription pid Process procid_target PID 4036 wrote to memory of 3856 4036 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe 84 PID 4036 wrote to memory of 3856 4036 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe 84 PID 4036 wrote to memory of 3856 4036 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe 84 PID 2448 wrote to memory of 1908 2448 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe 96 PID 2448 wrote to memory of 1908 2448 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe 96 PID 2448 wrote to memory of 1908 2448 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe 96 PID 2448 wrote to memory of 1480 2448 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe 100 PID 2448 wrote to memory of 1480 2448 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe 100 PID 1480 wrote to memory of 4616 1480 cmd.exe 102 PID 1480 wrote to memory of 4616 1480 cmd.exe 102 PID 2448 wrote to memory of 2212 2448 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe 103 PID 2448 wrote to memory of 2212 2448 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe 103 PID 2448 wrote to memory of 2212 2448 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe 103 PID 2448 wrote to memory of 3796 2448 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe 107 PID 2448 wrote to memory of 3796 2448 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe 107 PID 2448 wrote to memory of 3796 2448 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe 107 PID 2448 wrote to memory of 3128 2448 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe 109 PID 2448 wrote to memory of 3128 2448 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe 109 PID 2448 wrote to memory of 3128 2448 4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe 109 PID 3128 wrote to memory of 4468 3128 csrss.exe 110 PID 3128 wrote to memory of 4468 3128 csrss.exe 110 PID 3128 wrote to memory of 4468 3128 csrss.exe 110 PID 3128 wrote to memory of 2940 3128 csrss.exe 116 PID 3128 wrote to memory of 2940 3128 csrss.exe 116 PID 3128 wrote to memory of 2940 3128 csrss.exe 116 -
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\4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe"C:\Users\Admin\AppData\Local\Temp\4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4036 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3856
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C:\Users\Admin\AppData\Local\Temp\4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.exe"C:\Users\Admin\AppData\Local\Temp\4f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d.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:2448 -
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:1908
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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:1480 -
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:4616
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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:2212
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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:3796
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3128 -
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:4468
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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:2472
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2700
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2940
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Command and Scripting Interpreter: PowerShell
PID:116
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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⤵PID:3224
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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:4524
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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
MD55c59bc26c32ccf3da1fabb99e5007dd4
SHA1baea36b8d1785986551238e8a9c92541beb782b9
SHA2566b0f7f396540051181c9deafe2564a235b6dc2fb5f0506efae9dec9cb38db1b9
SHA512dc4cd5d51d575f009c33239fb5a099e4809cbcfc2f17b05cc3877eae9ed68823915015f3d947abccc818d6949f2339873d71c1e9b1c9e976cba316bcaffc9376
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5075f0d0e09a828600d46e7d743f503c6
SHA1ffe7da83469abbad45b8e65e2cd511988879f01c
SHA2561600f5cb30e41de6d545714a4d2f97886ba417b9f031755e14c1434790ad7aed
SHA512b13811eb3a3175d6868934f015bcc5ba0b50c5490407f1c3b59cccd2ed08962f1ceab6a1d0069372211b9c807cf05bf9ec6a84ee3c1fe5355df171d6510cf315
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5332185ddd52ffb6f3d8caf7075c2a505
SHA142f3cd0451b1436728c4b48020d4a3d5bcf74bd6
SHA2565d7916c3fa8157867e7c5bcb6088cdcef11b083381f3625c409636f16a719980
SHA512eca62fbe0c4fc3df98941e7ebdd1a43fca0ffe553946fec60704c6ece1e16d6c4b7a54d8982aed68dc0472ea5516cf0cf9df41abf1c2feee415745e2a4cf59cb
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD516c69d1c38d62c6cf4445f7865bdd98e
SHA18c943ab9d77480a87689a5772ba3260cc87e3203
SHA256f50fbea8899d0f5163d9e05b542161ed6014da46a61d58b196c23e9e70567f49
SHA5123a5a4a1225ad8563c7784e56600af7306cb3d5817e43ad7bc6d24e4fe73fbaf4edc760f860213c385e753eaf541a176fa21fa6b46483ac87a9df5c1f4caff5ee
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD533f7fd613e1d15e518eda40bee9089b7
SHA10c7a59d288b29c4ae28e06c8b3ffd5928ca8aacf
SHA256764bb29f8772ca5242b34c7ece4842bfa039f73df45a86aba6588b3095c5f44b
SHA51241d2675fe07c58a318607e9893194a020236b01726307f5537470f36964e6cb9b47eaad1a79bbff6e36c99e59cdbfca348b3f5132429396ca884424cb62f7248
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Filesize
4.1MB
MD52389a9e9bcb688f5d8d0a5b5e3f226d0
SHA1c9e218555305b5d6a765b2a954f68644743761ca
SHA2564f9226c5fd2b6cdfa82cde7be4019c7fcab1c838a352a766b9d47de8f3f9526d
SHA512201bbdd9ca0eddba8ab41f671721d52cab591892532668c5fa3d8eee3db137c87d85ba78b529bcdb5dc4b66c8fe0e273a3288b435feda10a1091d4da901ed0ec