Analysis
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max time kernel
149s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
20-04-2024 21:20
Static task
static1
Behavioral task
behavioral1
Sample
a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe
Resource
win10v2004-20240226-en
General
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Target
a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe
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Size
4.2MB
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MD5
12c1251ddacc8c6651573aaae2a36711
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SHA1
aa4a4fc95f24a847f33a0fcc22d318fe947929d0
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SHA256
a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22
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SHA512
e8e9723b210254504ae06f77ed86ff5c7da0ac1ba5134cb2ab99cd42b06744cdf2379835d5e8cbd413da69b1184a0d6297d29dc8393794d8959c5a2dc94f0a69
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SSDEEP
98304:6B6TE4JDSTIitXqfSjBwF+v4rSSNjcdSqGUwT7RQU7OM:HTFmTI8qKjKFA4r+dAh7RQU1
Malware Config
Signatures
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Glupteba payload 20 IoCs
Processes:
resource yara_rule behavioral2/memory/5028-2-0x00000000041D0000-0x0000000004ABB000-memory.dmp family_glupteba behavioral2/memory/5028-3-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/5028-51-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/5028-54-0x00000000041D0000-0x0000000004ABB000-memory.dmp family_glupteba behavioral2/memory/2812-55-0x0000000003F60000-0x000000000484B000-memory.dmp family_glupteba behavioral2/memory/2812-56-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/2812-180-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1636-244-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1636-246-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1636-255-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1636-258-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1636-261-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1636-264-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1636-267-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1636-270-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1636-273-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1636-276-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1636-279-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1636-282-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba behavioral2/memory/1636-285-0x0000000000400000-0x0000000001DF9000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 1600 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 1636 csrss.exe 1832 injector.exe 3048 windefender.exe 4748 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/3048-253-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4748-257-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4748-262-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4748-271-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2718508534-2116753757-2794822388-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe Set value (str) \REGISTRY\USER\S-1-5-21-2718508534-2116753757-2794822388-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
Processes:
csrss.exedescription ioc process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
Processes:
a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe -
Drops file in Windows directory 4 IoCs
Processes:
a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.execsrss.exedescription ioc process File opened for modification C:\Windows\rss a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe File created C:\Windows\rss\csrss.exe a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid process 3160 sc.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 464 schtasks.exe 5108 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
windefender.exea018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-541 = "Myanmar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2772 = "Omsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-132 = "US Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1971 = "Belarus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-52 = "Greenland Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1722 = "Libya Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-872 = "Pakistan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2492 = "Aus Central W. Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-562 = "SE Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-412 = "E. Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\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\26\52C64B7E\@tzres.dll,-2181 = "Astrakhan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-272 = "Greenwich Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-231 = "Hawaiian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-501 = "Nepal Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-251 = "Dateline Daylight Time" windefender.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\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-104 = "Central Brazilian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.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\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time" a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2431 = "Cuba Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2002 = "Cabo Verde Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-372 = "Jerusalem Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time" a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.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\26\52C64B7E\@tzres.dll,-2752 = "Tomsk Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-492 = "India Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time" a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.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\26\52C64B7E\@tzres.dll,-662 = "Cen. Australia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-105 = "Central Brazilian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-51 = "Greenland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exea018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exepowershell.exea018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 5064 powershell.exe 5064 powershell.exe 5028 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe 5028 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe 3860 powershell.exe 3860 powershell.exe 2812 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe 2812 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe 2812 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe 2812 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe 2812 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe 2812 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe 2812 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe 2812 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe 2812 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe 2812 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe 2856 powershell.exe 2856 powershell.exe 992 powershell.exe 992 powershell.exe 3744 powershell.exe 3744 powershell.exe 2092 powershell.exe 2092 powershell.exe 3872 powershell.exe 3872 powershell.exe 1832 injector.exe 1832 injector.exe 1832 injector.exe 1832 injector.exe 1832 injector.exe 1832 injector.exe 1636 csrss.exe 1636 csrss.exe 1832 injector.exe 1832 injector.exe 1832 injector.exe 1832 injector.exe 1832 injector.exe 1832 injector.exe 1636 csrss.exe 1636 csrss.exe 1832 injector.exe 1832 injector.exe 1832 injector.exe 1832 injector.exe 1832 injector.exe 1832 injector.exe 1832 injector.exe 1832 injector.exe 1832 injector.exe 1832 injector.exe 1832 injector.exe 1832 injector.exe 1636 csrss.exe 1636 csrss.exe 1832 injector.exe 1832 injector.exe 1832 injector.exe 1832 injector.exe 1832 injector.exe 1832 injector.exe 1832 injector.exe 1832 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exea018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 5064 powershell.exe Token: SeDebugPrivilege 5028 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe Token: SeImpersonatePrivilege 5028 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe Token: SeDebugPrivilege 3860 powershell.exe Token: SeDebugPrivilege 2856 powershell.exe Token: SeDebugPrivilege 992 powershell.exe Token: SeDebugPrivilege 3744 powershell.exe Token: SeDebugPrivilege 2092 powershell.exe Token: SeDebugPrivilege 3872 powershell.exe Token: SeSystemEnvironmentPrivilege 1636 csrss.exe Token: SeSecurityPrivilege 3160 sc.exe Token: SeSecurityPrivilege 3160 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exea018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 5028 wrote to memory of 5064 5028 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe powershell.exe PID 5028 wrote to memory of 5064 5028 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe powershell.exe PID 5028 wrote to memory of 5064 5028 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe powershell.exe PID 2812 wrote to memory of 3860 2812 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe powershell.exe PID 2812 wrote to memory of 3860 2812 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe powershell.exe PID 2812 wrote to memory of 3860 2812 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe powershell.exe PID 2812 wrote to memory of 4648 2812 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe cmd.exe PID 2812 wrote to memory of 4648 2812 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe cmd.exe PID 4648 wrote to memory of 1600 4648 cmd.exe netsh.exe PID 4648 wrote to memory of 1600 4648 cmd.exe netsh.exe PID 2812 wrote to memory of 2856 2812 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe powershell.exe PID 2812 wrote to memory of 2856 2812 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe powershell.exe PID 2812 wrote to memory of 2856 2812 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe powershell.exe PID 2812 wrote to memory of 992 2812 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe powershell.exe PID 2812 wrote to memory of 992 2812 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe powershell.exe PID 2812 wrote to memory of 992 2812 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe powershell.exe PID 2812 wrote to memory of 1636 2812 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe csrss.exe PID 2812 wrote to memory of 1636 2812 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe csrss.exe PID 2812 wrote to memory of 1636 2812 a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe csrss.exe PID 1636 wrote to memory of 3744 1636 csrss.exe powershell.exe PID 1636 wrote to memory of 3744 1636 csrss.exe powershell.exe PID 1636 wrote to memory of 3744 1636 csrss.exe powershell.exe PID 1636 wrote to memory of 2092 1636 csrss.exe powershell.exe PID 1636 wrote to memory of 2092 1636 csrss.exe powershell.exe PID 1636 wrote to memory of 2092 1636 csrss.exe powershell.exe PID 1636 wrote to memory of 3872 1636 csrss.exe powershell.exe PID 1636 wrote to memory of 3872 1636 csrss.exe powershell.exe PID 1636 wrote to memory of 3872 1636 csrss.exe powershell.exe PID 1636 wrote to memory of 1832 1636 csrss.exe injector.exe PID 1636 wrote to memory of 1832 1636 csrss.exe injector.exe PID 3048 wrote to memory of 3412 3048 windefender.exe cmd.exe PID 3048 wrote to memory of 3412 3048 windefender.exe cmd.exe PID 3048 wrote to memory of 3412 3048 windefender.exe cmd.exe PID 3412 wrote to memory of 3160 3412 cmd.exe sc.exe PID 3412 wrote to memory of 3160 3412 cmd.exe sc.exe PID 3412 wrote to memory of 3160 3412 cmd.exe sc.exe -
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\a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe"C:\Users\Admin\AppData\Local\Temp\a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5028 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5064
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C:\Users\Admin\AppData\Local\Temp\a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.exe"C:\Users\Admin\AppData\Local\Temp\a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22.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:2812 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3860
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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:4648 -
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:1600
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2856
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:992
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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.
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1636 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3744
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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:464
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1912
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2092
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3872
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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:1832
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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:5108
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3048 -
C:\Windows\SysWOW64\cmd.execmd.exe /C sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)5⤵
- Suspicious use of WriteProcessMemory
PID:3412 -
C:\Windows\SysWOW64\sc.exesc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)6⤵
- Launches sc.exe
- Suspicious use of AdjustPrivilegeToken
PID:3160
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4748
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
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54131f37af1a56a0c042ae69a232807f9
SHA1b65585ecad9ed72639dd494464223b1ad9ccd4e5
SHA256f866aee6d86f92817463c58dbec72c3ed8689285eb5aafe5891a1d7abc2bf15a
SHA51221d4b32f6c097f52a7f0920f2e2b25445bd161979a92c570d209b83405a9e8701d79da93f7087f9da17010e6532a1d8d59654a1942c49f7c65ba2d1bf1ff67bd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55e1601fddb04935c89f68cb9af192056
SHA15ced9e7965937e32432d9ac2423bd7b394f0b6ee
SHA2560208982a3c635ba6518e54bff111f752c7fe67e5b0b03c75e06a697002e8c184
SHA512f7d03644f742110c8efd3aedc8b4cf60baaae104cf0274151828485e137174438ae480b92ce6584ac2e7609d400a7e24ed2d891f5947e253c53e48b776ee5859
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5881d40ed72d79ef174f0dd19f502bcba
SHA115f06a4e60bd9809cc0d3000f7af4901ffb00bee
SHA256197d079769351263db2d81aecd9c453d255a2fc274f48c73e5bf9923b063c049
SHA51232e9c3ad17f83caed00a1d5c102d64bb5e2d4420263cb8a2868b2a06fc907253f6ddc9138d78551122b846e3d5548cc453970ccb510492ed384d8442df3ab728
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c04b91306d6dbc7db68e9fadc1059003
SHA1f6bf63aaf77e6cadc8955b9cd2616247e88d664b
SHA256ab2234274c60e36e7fcdd66c70c15f148f0e9d220ed62e1ea6536138d9c60378
SHA512993a465ef24ed95225f96413d2696331e61698a54c17854dd0e4ec4ff20aff8d8d99820a76f2ed4115750e7ed1aa55f5ac0f08126a6d930f1226b0304193e51d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f50f5705096efe8e3a03dcbebf966871
SHA1a28611d4b5d2b7504a824c802f1a9adcd9863d12
SHA256adefb8d235afa5988be1b21bbfa24527aa27d2330b57880fa253d67a5a00acfd
SHA512780a55850f526102bff0392f059009db7cb8336caf97d5b6ad82e0077996908034cb46ac62c413a71d1753564355d6881539399f6ac561c31ca57120a43c7146
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Filesize
4.2MB
MD512c1251ddacc8c6651573aaae2a36711
SHA1aa4a4fc95f24a847f33a0fcc22d318fe947929d0
SHA256a018166a731757f43374b0b24baecfbf31b85cf9de793b9d11b186acf887bf22
SHA512e8e9723b210254504ae06f77ed86ff5c7da0ac1ba5134cb2ab99cd42b06744cdf2379835d5e8cbd413da69b1184a0d6297d29dc8393794d8959c5a2dc94f0a69
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec