Analysis
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max time kernel
150s -
max time network
140s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
19-05-2024 14:01
Static task
static1
Behavioral task
behavioral1
Sample
8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
Resource
win10v2004-20240508-en
General
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Target
8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe
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Size
4.1MB
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MD5
d1d665f061f612842c5980585f7c5353
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SHA1
f952aff90ffcf50edd0f0d5e5c90864a861989ce
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SHA256
8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501
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SHA512
1ba8f127644498d96434ee55b28e2989ee06973db9463f3db5d41a0ec313f669ccd74aa8366e70626c4c02b844c1a72d77c6b6e8aba222b2d76511b4ff098c0c
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SSDEEP
98304:8NaXJU8AJvaro5mDbVFqT6QhicqJuM7BOvJODhfBAiYJAl59Wu:8qU8A9EamDpImBOY9f2Nu
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral1/memory/4624-2-0x0000000004830000-0x000000000511B000-memory.dmp family_glupteba behavioral1/memory/4624-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4624-57-0x0000000004830000-0x000000000511B000-memory.dmp family_glupteba behavioral1/memory/4624-56-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4624-54-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/1832-134-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/5036-219-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/5036-228-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/5036-230-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/5036-232-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/5036-234-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/5036-236-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/5036-238-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/5036-240-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/5036-242-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/5036-244-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/5036-246-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/5036-248-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba behavioral1/memory/5036-250-0x0000000000400000-0x000000000273B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 2308 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 5036 csrss.exe 4968 injector.exe 3872 windefender.exe 5044 windefender.exe -
Processes:
resource yara_rule behavioral1/files/0x0008000000023445-222.dat upx behavioral1/memory/3872-223-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3872-227-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/5044-229-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/5044-233-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Set value (str) \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\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 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:
8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe -
Drops file in Windows directory 4 IoCs
Processes:
csrss.exe8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exedescription ioc Process File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe File created C:\Windows\rss\csrss.exe 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe File created 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 2968 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 4920 powershell.exe 2616 powershell.exe 4332 powershell.exe 1808 powershell.exe 3804 powershell.exe 3032 powershell.exe 4724 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 884 schtasks.exe 2540 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exepowershell.exepowershell.exewindefender.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-431 = "Iran Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1912 = "Russia TZ 10 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-671 = "AUS Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-291 = "Central European 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 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs 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\@tzres.dll,-1472 = "Magadan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.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,-435 = "Georgian Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 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\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-171 = "Central Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2752 = "Tomsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2611 = "Bougainville Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-202 = "US Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-442 = "Arabian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-981 = "Kamchatka Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.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\CA\Certificates 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\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-401 = "Arabic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-252 = "Dateline Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-112 = "Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2512 = "Lord Howe Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exepowershell.exe8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 4920 powershell.exe 4920 powershell.exe 4624 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 4624 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 2616 powershell.exe 2616 powershell.exe 1832 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 1832 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 1832 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 1832 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 1832 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 1832 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 1832 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 1832 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 1832 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 1832 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 4332 powershell.exe 4332 powershell.exe 1808 powershell.exe 1808 powershell.exe 3804 powershell.exe 3804 powershell.exe 3032 powershell.exe 3032 powershell.exe 4724 powershell.exe 4724 powershell.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 5036 csrss.exe 5036 csrss.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 5036 csrss.exe 5036 csrss.exe 4968 injector.exe 4968 injector.exe 5036 csrss.exe 5036 csrss.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe 4968 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 4920 powershell.exe Token: SeDebugPrivilege 4624 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Token: SeImpersonatePrivilege 4624 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe Token: SeDebugPrivilege 2616 powershell.exe Token: SeDebugPrivilege 4332 powershell.exe Token: SeDebugPrivilege 1808 powershell.exe Token: SeDebugPrivilege 3804 powershell.exe Token: SeDebugPrivilege 3032 powershell.exe Token: SeDebugPrivilege 4724 powershell.exe Token: SeSystemEnvironmentPrivilege 5036 csrss.exe Token: SeSecurityPrivilege 2968 sc.exe Token: SeSecurityPrivilege 2968 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 4624 wrote to memory of 4920 4624 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 86 PID 4624 wrote to memory of 4920 4624 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 86 PID 4624 wrote to memory of 4920 4624 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 86 PID 1832 wrote to memory of 2616 1832 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 95 PID 1832 wrote to memory of 2616 1832 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 95 PID 1832 wrote to memory of 2616 1832 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 95 PID 1832 wrote to memory of 4232 1832 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 99 PID 1832 wrote to memory of 4232 1832 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 99 PID 4232 wrote to memory of 2308 4232 cmd.exe 101 PID 4232 wrote to memory of 2308 4232 cmd.exe 101 PID 1832 wrote to memory of 4332 1832 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 102 PID 1832 wrote to memory of 4332 1832 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 102 PID 1832 wrote to memory of 4332 1832 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 102 PID 1832 wrote to memory of 1808 1832 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 105 PID 1832 wrote to memory of 1808 1832 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 105 PID 1832 wrote to memory of 1808 1832 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 105 PID 1832 wrote to memory of 5036 1832 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 107 PID 1832 wrote to memory of 5036 1832 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 107 PID 1832 wrote to memory of 5036 1832 8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe 107 PID 5036 wrote to memory of 3804 5036 csrss.exe 108 PID 5036 wrote to memory of 3804 5036 csrss.exe 108 PID 5036 wrote to memory of 3804 5036 csrss.exe 108 PID 5036 wrote to memory of 3032 5036 csrss.exe 114 PID 5036 wrote to memory of 3032 5036 csrss.exe 114 PID 5036 wrote to memory of 3032 5036 csrss.exe 114 PID 5036 wrote to memory of 4724 5036 csrss.exe 116 PID 5036 wrote to memory of 4724 5036 csrss.exe 116 PID 5036 wrote to memory of 4724 5036 csrss.exe 116 PID 5036 wrote to memory of 4968 5036 csrss.exe 118 PID 5036 wrote to memory of 4968 5036 csrss.exe 118 PID 3872 wrote to memory of 3148 3872 windefender.exe 125 PID 3872 wrote to memory of 3148 3872 windefender.exe 125 PID 3872 wrote to memory of 3148 3872 windefender.exe 125 PID 3148 wrote to memory of 2968 3148 cmd.exe 126 PID 3148 wrote to memory of 2968 3148 cmd.exe 126 PID 3148 wrote to memory of 2968 3148 cmd.exe 126 -
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\8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe"C:\Users\Admin\AppData\Local\Temp\8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4624 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4920
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C:\Users\Admin\AppData\Local\Temp\8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.exe"C:\Users\Admin\AppData\Local\Temp\8c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501.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:1832 -
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:2616
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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:4232 -
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:2308
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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:4332
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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:1808
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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:5036 -
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:3804
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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:884
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2688
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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:3032
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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:4724
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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:4968
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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:2540
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3872 -
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:3148 -
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:2968
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:5044
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
MD53d086a433708053f9bf9523e1d87a4e8
SHA1b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA2566f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
SHA512931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55a2b40095b72b380dff7f0121f4cc5ee
SHA1d1613636d65a6abda9a808b8753a63abf17a9c49
SHA256b3ba526a43300799d1aff35587dd9763f9e1e9874223bbab8e9ef36f114fa724
SHA512b94f3b2532f567b6b35d29c81dcdd6a2559956e1d9bc9003474dd5761893e03ac58b2994f1f34730c538909e893eddbe1e02f5b804e175e4049ae6219fe88f4c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51e70b6867e0cccc356005c664a57957b
SHA17b722ceb9ac18de258dba868b6fa2d32696989e0
SHA256eebc59e314f7f5cd9bf93696155ce1d17def63c4fc84f2c01087e0133526318c
SHA5123d7313abc60faec6e568a8459733ab25e5bb83b59d84cdf804eaa925ea375245f2a570b0f2067130a2e20890d40476f36e9c75539335d746181237a4f136c885
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e3d6156c59ba98f9b76d8f05027ae242
SHA1062cec115ea75e5db8cdc795a010c470991c5189
SHA2563a9a4166182618c4fd1dca4d2e0931f6b59235a1025c9bdbf87937085f2a157c
SHA5126ea82bce2c1d2d8419e00090f85fff74d577e73e42b7fa7eaa67e2f979d8844330552c17817f55c19067238b72db9b7e548f06b0800527cb4a66b4a4868d41d0
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51726eccbd5fb85fd9f74179d47c5e702
SHA19eff40e35fc0e422a2b6781cf80cd6f4086e6ab6
SHA25652c4e0ed5f6ad987297e85edffdc03a55ce2367dffe9f1b98b2403f0e2e0c7cd
SHA512176811b20660a601f2393ec12485ff3f28802b1eae376ae244bef54c76c218cf9994d4e4e9d1852e96b1f6997f42ef9e6f4307a0c3f483b94217f6c3b5cb8c30
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54fd91ed96a5504f1c17ba743233bcfef
SHA186ffe3eb59520461fa9a57898944df0f02da3201
SHA256ea739ad999dd87c6897c37a889cc08b6f0c41d3fe31d87e8e339b49d557b3729
SHA5121ca00e8ad0455bf4cc303e19ee87a869864b3a13cb8a3b9172e34a02cb856864bc61c63c174c296389a4934f9dc3d2e1b69eb71281fc0405837647f2ac5fc327
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Filesize
4.1MB
MD5d1d665f061f612842c5980585f7c5353
SHA1f952aff90ffcf50edd0f0d5e5c90864a861989ce
SHA2568c34a6f876190e08672e1b886b86be82f7fec94378e85d787c9980e2756b6501
SHA5121ba8f127644498d96434ee55b28e2989ee06973db9463f3db5d41a0ec313f669ccd74aa8366e70626c4c02b844c1a72d77c6b6e8aba222b2d76511b4ff098c0c
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec