Analysis
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max time kernel
150s -
max time network
131s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
16-05-2024 09:45
Static task
static1
Behavioral task
behavioral1
Sample
c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe
Resource
win10v2004-20240508-en
General
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Target
c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe
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Size
4.1MB
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MD5
6cc4240ac77edb96d20157cbae0b8c9a
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SHA1
ea1d34d70f7ba791e4397fdb13b8edb84c98711e
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SHA256
c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30
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SHA512
97dd1f375d611b98991abf51feb334254f8a6c91baaabf9cd551c9afbd851a8f87a05e5185d402b36a32ecca5f682ec347281e704b61afbefa49216138762bf6
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SSDEEP
98304:1H49zrfgobu9aDMWAg4dPDb/NQHvakIF/A8L3rqLZk5t2qZ3qL2LAZ51:cr7OagDbOPW/F2k5tRZaLrz
Malware Config
Signatures
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Glupteba payload 18 IoCs
Processes:
resource yara_rule behavioral1/memory/4400-2-0x0000000002D90000-0x000000000367B000-memory.dmp family_glupteba behavioral1/memory/4400-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4400-78-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4400-96-0x0000000002D90000-0x000000000367B000-memory.dmp family_glupteba behavioral1/memory/1932-120-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1932-136-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2536-213-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2536-229-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2536-231-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2536-234-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2536-237-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2536-240-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2536-244-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2536-246-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2536-249-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2536-252-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2536-256-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2536-258-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 1856 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 2536 csrss.exe 4804 injector.exe 3564 windefender.exe 3364 windefender.exe -
Processes:
resource yara_rule behavioral1/files/0x000900000002341e-221.dat upx behavioral1/memory/3564-223-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3364-226-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3564-228-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3364-232-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3364-238-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
csrss.exec0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.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 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 -
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:
c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe -
Drops file in Windows directory 4 IoCs
Processes:
c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe File created C:\Windows\rss\csrss.exe c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.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 1372 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 1412 powershell.exe 4776 powershell.exe 3156 powershell.exe 3632 powershell.exe 656 powershell.exe 4280 powershell.exe 1936 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 4896 schtasks.exe 452 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exewindefender.exec0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-491 = "India Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3051 = "Qyzylorda Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2322 = "Sakhalin Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2842 = "Saratov Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs 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\@tzres.dll,-2412 = "Marquesas Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1411 = "Syria Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-752 = "Tonga Standard Time" windefender.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" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-232 = "Hawaiian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-451 = "Caucasus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-282 = "Central Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-392 = "Arab Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2341 = "Haiti Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2062 = "North Korea Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-211 = "Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-215 = "Pacific Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.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\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2161 = "Altai Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2531 = "Chatham Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-242 = "Samoa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-448 = "Azerbaijan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-662 = "Cen. Australia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-411 = "E. Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-92 = "Pacific SA Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time" c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exec0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exepowershell.exec0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 4280 powershell.exe 4280 powershell.exe 4400 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 4400 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 1936 powershell.exe 1936 powershell.exe 1932 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 1932 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 1932 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 1932 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 1932 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 1932 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 1932 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 1932 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 1932 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 1932 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 1412 powershell.exe 1412 powershell.exe 4776 powershell.exe 4776 powershell.exe 3156 powershell.exe 3156 powershell.exe 3632 powershell.exe 3632 powershell.exe 656 powershell.exe 656 powershell.exe 4804 injector.exe 4804 injector.exe 4804 injector.exe 4804 injector.exe 4804 injector.exe 4804 injector.exe 2536 csrss.exe 2536 csrss.exe 4804 injector.exe 4804 injector.exe 4804 injector.exe 4804 injector.exe 4804 injector.exe 4804 injector.exe 2536 csrss.exe 2536 csrss.exe 4804 injector.exe 4804 injector.exe 2536 csrss.exe 2536 csrss.exe 4804 injector.exe 4804 injector.exe 4804 injector.exe 4804 injector.exe 4804 injector.exe 4804 injector.exe 4804 injector.exe 4804 injector.exe 4804 injector.exe 4804 injector.exe 4804 injector.exe 4804 injector.exe 4804 injector.exe 4804 injector.exe 4804 injector.exe 4804 injector.exe 4804 injector.exe 4804 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exec0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 4280 powershell.exe Token: SeDebugPrivilege 4400 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Token: SeImpersonatePrivilege 4400 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe Token: SeDebugPrivilege 1936 powershell.exe Token: SeDebugPrivilege 1412 powershell.exe Token: SeDebugPrivilege 4776 powershell.exe Token: SeDebugPrivilege 3156 powershell.exe Token: SeDebugPrivilege 3632 powershell.exe Token: SeDebugPrivilege 656 powershell.exe Token: SeSystemEnvironmentPrivilege 2536 csrss.exe Token: SeSecurityPrivilege 1372 sc.exe Token: SeSecurityPrivilege 1372 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exec0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 4400 wrote to memory of 4280 4400 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 87 PID 4400 wrote to memory of 4280 4400 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 87 PID 4400 wrote to memory of 4280 4400 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 87 PID 1932 wrote to memory of 1936 1932 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 99 PID 1932 wrote to memory of 1936 1932 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 99 PID 1932 wrote to memory of 1936 1932 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 99 PID 1932 wrote to memory of 4308 1932 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 102 PID 1932 wrote to memory of 4308 1932 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 102 PID 4308 wrote to memory of 1856 4308 cmd.exe 104 PID 4308 wrote to memory of 1856 4308 cmd.exe 104 PID 1932 wrote to memory of 1412 1932 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 105 PID 1932 wrote to memory of 1412 1932 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 105 PID 1932 wrote to memory of 1412 1932 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 105 PID 1932 wrote to memory of 4776 1932 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 107 PID 1932 wrote to memory of 4776 1932 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 107 PID 1932 wrote to memory of 4776 1932 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 107 PID 1932 wrote to memory of 2536 1932 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 109 PID 1932 wrote to memory of 2536 1932 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 109 PID 1932 wrote to memory of 2536 1932 c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe 109 PID 2536 wrote to memory of 3156 2536 csrss.exe 110 PID 2536 wrote to memory of 3156 2536 csrss.exe 110 PID 2536 wrote to memory of 3156 2536 csrss.exe 110 PID 2536 wrote to memory of 3632 2536 csrss.exe 115 PID 2536 wrote to memory of 3632 2536 csrss.exe 115 PID 2536 wrote to memory of 3632 2536 csrss.exe 115 PID 2536 wrote to memory of 656 2536 csrss.exe 118 PID 2536 wrote to memory of 656 2536 csrss.exe 118 PID 2536 wrote to memory of 656 2536 csrss.exe 118 PID 2536 wrote to memory of 4804 2536 csrss.exe 122 PID 2536 wrote to memory of 4804 2536 csrss.exe 122 PID 3564 wrote to memory of 3400 3564 windefender.exe 128 PID 3564 wrote to memory of 3400 3564 windefender.exe 128 PID 3564 wrote to memory of 3400 3564 windefender.exe 128 PID 3400 wrote to memory of 1372 3400 cmd.exe 129 PID 3400 wrote to memory of 1372 3400 cmd.exe 129 PID 3400 wrote to memory of 1372 3400 cmd.exe 129 -
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\c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe"C:\Users\Admin\AppData\Local\Temp\c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4400 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4280
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C:\Users\Admin\AppData\Local\Temp\c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.exe"C:\Users\Admin\AppData\Local\Temp\c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30.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:1932 -
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:1936
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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:4308 -
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:1856
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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:1412
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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:4776
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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:2536 -
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:3156
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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:4896
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2284
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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:3632
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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:656
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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:4804
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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:452
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3564 -
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:3400 -
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:1372
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3364
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
MD5dacbefcaf9e3b4ef40bb0f0a95c2c477
SHA1eaefa32d0a69f635e60acb7a301be8fdae4ff77b
SHA2562e0d4f05de5dea3ccc78092ab3294514f8e25e95b3f3236781761ab840fcabb6
SHA512d41b3d1eb27b4dc284106d9ac368df944885d8368967b38b0872d1e1a5dc464cec46b7491c6426042229395e711cc1610511f9dd8aee3eed6e7cfd226598ee11
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f1fa7872ae62df916d47274a24d7d596
SHA1a49fa2b7fe41f861ff9af5fcc0d683c5cda81786
SHA25670d5f02120f139bff69f17522b6e06e1635105001a9ddf294cb9d262f9c13e12
SHA512f45d9bcb922a1d896e65863428f559e9dc12690b89650c9268cb3ce54970d0a07c682f30035da979f46c15410be6283802f3c791d6d879d730354499e4805bb6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f371adb8daede770971c9f5e4c9f61e1
SHA16b9b0d703bc21725187da4b5e302a165c0652852
SHA256faf5ac0ca23674887d9d17108a71f241f9757701c01896ec1ff295e2e27ad902
SHA5128f949e94f20e4a09b75dd3167cfd4e80b00a8039a130081480716cc6495cf136c989a8c417121d2fda268791d53393f592d03e31597f4370ed0b6fe77fb28c8d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54025d5de8ca07316af7c7ed8636b678a
SHA1772d5ef04c05370130955d2966ba0dc684329757
SHA256f7eae5a881fc5d8905002520a923758819984c4070966a77293933b20ca13e61
SHA512b2ce0cf6b85e070a34fe72db2e05b3ad383c1038314b0a2607bb9b685d1c0ccf782e38e15a260ea9874583e077755da5cbcc52d81aeb21314b4d50503a6717a6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD529ae9e66187e61cd712614605e53a85b
SHA170472cae2208ccb454ed2288c1e9836e2da7a35f
SHA2566dd4a4345bfd333d338335e29935a48298c7c08b0cb4b7ba37f22926dd676bdf
SHA5129e86a35b22bbeb6b5148f097fc0ad2449efeebe4ecec7934ccd46059e0ba990d090231246284c203d1793e6aad11dd3b6ec53ff813c59db4ae5d01d6141fbc19
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Filesize
4.1MB
MD56cc4240ac77edb96d20157cbae0b8c9a
SHA1ea1d34d70f7ba791e4397fdb13b8edb84c98711e
SHA256c0391bcfdc26d1587e6a3ef1750e80f38be70e82c751570987056e49e83f8e30
SHA51297dd1f375d611b98991abf51feb334254f8a6c91baaabf9cd551c9afbd851a8f87a05e5185d402b36a32ecca5f682ec347281e704b61afbefa49216138762bf6
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec