Analysis
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max time kernel
150s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
19-04-2024 13:23
Static task
static1
Behavioral task
behavioral1
Sample
a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe
Resource
win10v2004-20240412-en
General
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Target
a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe
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Size
4.2MB
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MD5
02827eb6bb7bed85ce569bf1b3697440
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SHA1
7c8ef9b1fb7aa6bd25040da4fe529e48b7b118cc
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SHA256
a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e
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SHA512
a903a0701d2d4b86bd035427b2f6247b03c665231f43862e8c9ad519f219505782ede81c4c24fe02518dfa5a6d61239f53800d30afa0246cea234ab9233dd7ab
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SSDEEP
98304:GnK8LmfPd/8stvQd5ytt2zai81uhNveK9SmSQsZGchR1mW:l8qfPd/x65yttA81u3LZOh/b
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral1/memory/4720-2-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/4720-3-0x0000000005270000-0x0000000005B5B000-memory.dmp family_glupteba behavioral1/memory/4720-54-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/3284-56-0x0000000005150000-0x0000000005A3B000-memory.dmp family_glupteba behavioral1/memory/3284-58-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/3284-232-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/5032-337-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/5032-346-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/5032-348-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/5032-350-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/5032-352-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/5032-354-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/5032-356-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/5032-357-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/5032-360-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/5032-362-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/5032-364-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/5032-366-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/5032-368-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 4736 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 5032 csrss.exe 4948 injector.exe 3792 windefender.exe 2060 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral1/memory/3792-344-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/2060-347-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/2060-351-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-355664440-2199602304-1223909400-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe Set value (str) \REGISTRY\USER\S-1-5-21-355664440-2199602304-1223909400-1000\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:
a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe -
Drops file in Windows directory 4 IoCs
Processes:
a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.execsrss.exedescription ioc process File created C:\Windows\rss\csrss.exe a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid process 1360 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 4552 schtasks.exe 4696 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
windefender.exea5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-335 = "Jordan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-434 = "Georgian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-232 = "Hawaiian 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\@tzres.dll,-561 = "SE Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.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\26\52C64B7E\@tzres.dll,-1661 = "Bahia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-71 = "Newfoundland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2891 = "Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2142 = "Transbaikal Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.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,-191 = "Mountain Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-72 = "Newfoundland Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-302 = "Romance Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2412 = "Marquesas Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1972 = "Belarus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-42 = "E. South America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time" a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.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\26\52C64B7E\@tzres.dll,-2491 = "Aus Central W. Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2532 = "Chatham Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2631 = "Norfolk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2342 = "Haiti Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.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\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1872 = "Russia TZ 7 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1502 = "Turkey Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-682 = "E. Australia Standard Time" a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.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\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2611 = "Bougainville Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time" a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exea5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exepowershell.exea5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 3680 powershell.exe 3680 powershell.exe 4720 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe 4720 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe 5020 powershell.exe 5020 powershell.exe 3284 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe 3284 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe 3284 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe 3284 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe 3284 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe 3284 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe 3284 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe 3284 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe 3284 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe 3284 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe 5104 powershell.exe 5104 powershell.exe 444 powershell.exe 444 powershell.exe 2208 powershell.exe 2208 powershell.exe 1284 powershell.exe 1284 powershell.exe 3988 powershell.exe 3988 powershell.exe 4948 injector.exe 4948 injector.exe 4948 injector.exe 4948 injector.exe 4948 injector.exe 4948 injector.exe 5032 csrss.exe 5032 csrss.exe 4948 injector.exe 4948 injector.exe 4948 injector.exe 4948 injector.exe 4948 injector.exe 4948 injector.exe 5032 csrss.exe 5032 csrss.exe 4948 injector.exe 4948 injector.exe 4948 injector.exe 4948 injector.exe 5032 csrss.exe 5032 csrss.exe 4948 injector.exe 4948 injector.exe 4948 injector.exe 4948 injector.exe 4948 injector.exe 4948 injector.exe 4948 injector.exe 4948 injector.exe 4948 injector.exe 4948 injector.exe 4948 injector.exe 4948 injector.exe 4948 injector.exe 4948 injector.exe 4948 injector.exe 4948 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exea5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 3680 powershell.exe Token: SeDebugPrivilege 4720 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe Token: SeImpersonatePrivilege 4720 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe Token: SeDebugPrivilege 5020 powershell.exe Token: SeDebugPrivilege 5104 powershell.exe Token: SeDebugPrivilege 444 powershell.exe Token: SeDebugPrivilege 2208 powershell.exe Token: SeDebugPrivilege 1284 powershell.exe Token: SeDebugPrivilege 3988 powershell.exe Token: SeSystemEnvironmentPrivilege 5032 csrss.exe Token: SeSecurityPrivilege 1360 sc.exe Token: SeSecurityPrivilege 1360 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exea5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 4720 wrote to memory of 3680 4720 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe powershell.exe PID 4720 wrote to memory of 3680 4720 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe powershell.exe PID 4720 wrote to memory of 3680 4720 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe powershell.exe PID 3284 wrote to memory of 5020 3284 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe powershell.exe PID 3284 wrote to memory of 5020 3284 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe powershell.exe PID 3284 wrote to memory of 5020 3284 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe powershell.exe PID 3284 wrote to memory of 2168 3284 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe cmd.exe PID 3284 wrote to memory of 2168 3284 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe cmd.exe PID 2168 wrote to memory of 4736 2168 cmd.exe netsh.exe PID 2168 wrote to memory of 4736 2168 cmd.exe netsh.exe PID 3284 wrote to memory of 5104 3284 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe powershell.exe PID 3284 wrote to memory of 5104 3284 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe powershell.exe PID 3284 wrote to memory of 5104 3284 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe powershell.exe PID 3284 wrote to memory of 444 3284 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe powershell.exe PID 3284 wrote to memory of 444 3284 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe powershell.exe PID 3284 wrote to memory of 444 3284 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe powershell.exe PID 3284 wrote to memory of 5032 3284 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe csrss.exe PID 3284 wrote to memory of 5032 3284 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe csrss.exe PID 3284 wrote to memory of 5032 3284 a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe csrss.exe PID 5032 wrote to memory of 2208 5032 csrss.exe powershell.exe PID 5032 wrote to memory of 2208 5032 csrss.exe powershell.exe PID 5032 wrote to memory of 2208 5032 csrss.exe powershell.exe PID 5032 wrote to memory of 1284 5032 csrss.exe powershell.exe PID 5032 wrote to memory of 1284 5032 csrss.exe powershell.exe PID 5032 wrote to memory of 1284 5032 csrss.exe powershell.exe PID 5032 wrote to memory of 3988 5032 csrss.exe powershell.exe PID 5032 wrote to memory of 3988 5032 csrss.exe powershell.exe PID 5032 wrote to memory of 3988 5032 csrss.exe powershell.exe PID 5032 wrote to memory of 4948 5032 csrss.exe injector.exe PID 5032 wrote to memory of 4948 5032 csrss.exe injector.exe PID 3792 wrote to memory of 2728 3792 windefender.exe cmd.exe PID 3792 wrote to memory of 2728 3792 windefender.exe cmd.exe PID 3792 wrote to memory of 2728 3792 windefender.exe cmd.exe PID 2728 wrote to memory of 1360 2728 cmd.exe sc.exe PID 2728 wrote to memory of 1360 2728 cmd.exe sc.exe PID 2728 wrote to memory of 1360 2728 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\a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe"C:\Users\Admin\AppData\Local\Temp\a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4720 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3680
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C:\Users\Admin\AppData\Local\Temp\a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.exe"C:\Users\Admin\AppData\Local\Temp\a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e.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:3284 -
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:5020
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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:2168 -
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:4736
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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:5104
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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:444
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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:5032 -
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:2208
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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:4552
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4896
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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:1284
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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:3988
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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:4948
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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:4696
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3792 -
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:2728 -
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:1360
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2060
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
MD5149e5a0931e1a1376bef8f9b5ebb8458
SHA139cfa784f6bb9dfe89b52f08afb18736191d05e7
SHA256d9f1560b17a0ee2dc22dfc3f576024c30eb623c5de6a22d2572efafef985bc7a
SHA51230e278841d31153ab8a690f05a26cf26ab64f2799be2402f587a516105908a3adc994a27fe10b4d650af870e87d8130e15b066406006b3f5c8183fbbbc8ae6c2
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a644f4a6071faccb7010f1951e7bb0d5
SHA11310ed85a7005e55bfcc0cab9142c03beeacaf8f
SHA2565354919224c1f694c8a73769f67ff0f90ad156777f8e55309a6385f6ce5116c6
SHA512e0f9af8be9840e65641cd297c2c1a29c72e444b8ffe25d78e124c36d483627d9ab169368dc5043f2d9189bf1e4c0a9513b481362c8d0176663b2e03a00875b41
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c3fd5b6ffc53e6d9e2299160a0b3a867
SHA14ff439cb50e3a2691856d3b4e3ac65da23e0988b
SHA256756024f852336c97bf0e943b8d2a15c139ebaeaa8dbbb87fac5a733e2fbd38d0
SHA512a6a27db2e87d5691d01b7264d2c77bad59fbe61c280f6d814653841a727770391a376b0bed721ffb078b06408f27e58f5f0507e5a38a9b2f8520915cefc00a96
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59d63edea40b67712603bbd5bbab081d5
SHA1ece7c4d42c6f152549908a197f9cfe18d819e419
SHA256abdb08e8323fc2ab065702c3be8031984f8943f95ea4a8ab11c02e5ca02bd8da
SHA51220ec8910c6151d73064822899776975869f8805f9a43630e8e9307e8535d4482e8479684290dad2f7b1c8f41b86cc967b280edd6e60cfae3a760f634fb03b6f2
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53951383ea06a2208c00b71a666c4fca6
SHA1749e15451470eacb95a593360c7fe64c90ad78dc
SHA256b752ff7dcf9a23de5b25ca73b50ed152537d986dd33389ff3939197da33a1bab
SHA5123ae1316cb93a5c7b92acacbef910d04138fb9da78a2fa043bf333558c66e1dfc5b8de860bebe0eee20af2a09d65cb22539760a66f513050d5e823791eb7aed20
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Filesize
4.2MB
MD502827eb6bb7bed85ce569bf1b3697440
SHA17c8ef9b1fb7aa6bd25040da4fe529e48b7b118cc
SHA256a5501eb525e7f6fd6b734c1684b2003f8efe60382472575559df658c5e54975e
SHA512a903a0701d2d4b86bd035427b2f6247b03c665231f43862e8c9ad519f219505782ede81c4c24fe02518dfa5a6d61239f53800d30afa0246cea234ab9233dd7ab
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec