Analysis
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max time kernel
149s -
max time network
131s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
16-05-2024 04:33
Static task
static1
Behavioral task
behavioral1
Sample
37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe
Resource
win10v2004-20240426-en
General
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Target
37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe
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Size
4.1MB
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MD5
d607186a125b49d710c32d27381b33b2
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SHA1
2168fbf37fa3801e2cdfd44bcfc633c145699172
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SHA256
37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617
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SHA512
4c3801b74466708e3b503db22530014d0ce686980c426399c263ec3a9fa471cd5c564e775001860ca35c08434f615f6a4f11298453c78a074a875ef139b17183
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SSDEEP
98304:Z96GAmuNBigEkoqfZTwC6uGlBZNljS4jce:ZI9hoq9wC6uGlB/xge
Malware Config
Signatures
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Glupteba payload 18 IoCs
Processes:
resource yara_rule behavioral1/memory/2084-2-0x0000000002D40000-0x000000000362B000-memory.dmp family_glupteba behavioral1/memory/2084-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2084-83-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2084-95-0x0000000002D40000-0x000000000362B000-memory.dmp family_glupteba behavioral1/memory/1392-146-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2304-215-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2304-228-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2304-233-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2304-236-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2304-240-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2304-244-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2304-249-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2304-252-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2304-256-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2304-260-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2304-265-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2304-268-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2304-272-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 1596 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 2304 csrss.exe 2552 injector.exe 320 windefender.exe 4652 windefender.exe -
Processes:
resource yara_rule behavioral1/files/0x000700000002341e-221.dat upx behavioral1/memory/320-222-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4652-225-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/320-227-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4652-231-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4652-239-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe Set value (str) \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
Processes:
csrss.exedescription ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File 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 -
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:
37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe -
Drops file in Windows directory 4 IoCs
Processes:
37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe File created C:\Windows\rss\csrss.exe 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.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 980 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 4836 powershell.exe 228 powershell.exe 3964 powershell.exe 648 powershell.exe 2848 powershell.exe 3320 powershell.exe 4620 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 3824 schtasks.exe 1028 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
windefender.exe37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2451 = "Saint Pierre Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.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\2a\52C64B7E\@tzres.dll,-161 = "Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-272 = "Greenwich Standard 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\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time" 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2061 = "North Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs 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\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,-622 = "Korea Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.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,-1832 = "Russia TZ 2 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.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\2a\52C64B7E\@tzres.dll,-341 = "Egypt Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1822 = "Russia TZ 1 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-961 = "Paraguay Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2511 = "Lord Howe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-532 = "Sri Lanka Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-462 = "Afghanistan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-384 = "Namibia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2512 = "Lord Howe Standard Time" windefender.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,-191 = "Mountain Daylight Time" 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.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,-1871 = "Russia TZ 7 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-541 = "Myanmar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-741 = "New Zealand Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time" 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exepowershell.exe37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 648 powershell.exe 648 powershell.exe 2084 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe 2084 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe 2848 powershell.exe 2848 powershell.exe 1392 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe 1392 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe 1392 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe 1392 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe 1392 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe 1392 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe 1392 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe 1392 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe 1392 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe 1392 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe 3320 powershell.exe 3320 powershell.exe 4620 powershell.exe 4620 powershell.exe 4836 powershell.exe 4836 powershell.exe 228 powershell.exe 228 powershell.exe 3964 powershell.exe 3964 powershell.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2304 csrss.exe 2552 injector.exe 2304 csrss.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2304 csrss.exe 2304 csrss.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2304 csrss.exe 2304 csrss.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe 2552 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 648 powershell.exe Token: SeDebugPrivilege 2084 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe Token: SeImpersonatePrivilege 2084 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe Token: SeDebugPrivilege 2848 powershell.exe Token: SeDebugPrivilege 3320 powershell.exe Token: SeDebugPrivilege 4620 powershell.exe Token: SeDebugPrivilege 4836 powershell.exe Token: SeDebugPrivilege 228 powershell.exe Token: SeDebugPrivilege 3964 powershell.exe Token: SeSystemEnvironmentPrivilege 2304 csrss.exe Token: SeSecurityPrivilege 980 sc.exe Token: SeSecurityPrivilege 980 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 2084 wrote to memory of 648 2084 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe 86 PID 2084 wrote to memory of 648 2084 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe 86 PID 2084 wrote to memory of 648 2084 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe 86 PID 1392 wrote to memory of 2848 1392 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe 96 PID 1392 wrote to memory of 2848 1392 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe 96 PID 1392 wrote to memory of 2848 1392 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe 96 PID 1392 wrote to memory of 4504 1392 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe 101 PID 1392 wrote to memory of 4504 1392 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe 101 PID 4504 wrote to memory of 1596 4504 cmd.exe 103 PID 4504 wrote to memory of 1596 4504 cmd.exe 103 PID 1392 wrote to memory of 3320 1392 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe 104 PID 1392 wrote to memory of 3320 1392 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe 104 PID 1392 wrote to memory of 3320 1392 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe 104 PID 1392 wrote to memory of 4620 1392 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe 106 PID 1392 wrote to memory of 4620 1392 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe 106 PID 1392 wrote to memory of 4620 1392 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe 106 PID 1392 wrote to memory of 2304 1392 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe 108 PID 1392 wrote to memory of 2304 1392 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe 108 PID 1392 wrote to memory of 2304 1392 37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe 108 PID 2304 wrote to memory of 4836 2304 csrss.exe 109 PID 2304 wrote to memory of 4836 2304 csrss.exe 109 PID 2304 wrote to memory of 4836 2304 csrss.exe 109 PID 2304 wrote to memory of 228 2304 csrss.exe 114 PID 2304 wrote to memory of 228 2304 csrss.exe 114 PID 2304 wrote to memory of 228 2304 csrss.exe 114 PID 2304 wrote to memory of 3964 2304 csrss.exe 117 PID 2304 wrote to memory of 3964 2304 csrss.exe 117 PID 2304 wrote to memory of 3964 2304 csrss.exe 117 PID 2304 wrote to memory of 2552 2304 csrss.exe 119 PID 2304 wrote to memory of 2552 2304 csrss.exe 119 PID 320 wrote to memory of 2388 320 windefender.exe 126 PID 320 wrote to memory of 2388 320 windefender.exe 126 PID 320 wrote to memory of 2388 320 windefender.exe 126 PID 2388 wrote to memory of 980 2388 cmd.exe 127 PID 2388 wrote to memory of 980 2388 cmd.exe 127 PID 2388 wrote to memory of 980 2388 cmd.exe 127 -
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\37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe"C:\Users\Admin\AppData\Local\Temp\37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2084 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:648
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C:\Users\Admin\AppData\Local\Temp\37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.exe"C:\Users\Admin\AppData\Local\Temp\37978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617.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:1392 -
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:2848
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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:4504 -
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:1596
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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:3320
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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:4620
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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:2304 -
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:4836
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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:3824
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2836
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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:228
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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:3964
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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:2552
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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:1028
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:320 -
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:2388 -
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:980
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4652
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
MD5dbc0e8584a9164142a1a4793d12acf0e
SHA17d076adbe67139c5989f10586c9485d08449140c
SHA2567584e7ef51dd27a9acdc9da3d01d90405f3d242a9707137728d26d43f2ed3f86
SHA512f283a8dd620fc432104ca9754e06e471d1a93d9a29e1137f17fa7401956647c59a8ee0fda22619f66aa00760200146c717aac573936f101a43e921f288187e0f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5989bf865f9597ec772402c90944e3b91
SHA197ed0879c50bb74c96570d2626a5ddefba3776cf
SHA256ea1b070be40148d44f8fc3d14fda0f9b6e45f488a6dd485f75ba94cf4f3b2348
SHA512475af4e26bc5e054934c2a137639d547b9b6611ea4d296d49a905269acea1f56361fd55cbcd8fae656351bc61b3ed3032ff2d7df1c8f58885e6eafe856789859
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ea0647ab0a38ab4fdb23fc752e0aa64b
SHA1a8e25faa6373050965b307ad464d60877b2e3676
SHA2566bfff94be903891ee1140cd4b0564ee55ae4d23e5d62609a39430620dbb9b393
SHA5121218e060c0392e621b0e28012f572963d68659957a4ff66060d5b2473f51b64f782d5b5ad07e29a48e428d5e81c87906425cadd26eafb18116207443c2cde5fc
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD528e145624ffab34c4751d9a11d796492
SHA11f1ad81f5f1a49a96501dad645a51cadcfc8ed37
SHA2563d03d71f38e7681fdc28ad5e40b577613f6dae1f324c549aea3c9157480227cc
SHA512c2bbb6c430e960a6c412a6588c436df885f65ebcc82398de3e7df3e1d5cff7d1897b21d6305b8c4477c3a3ba3c2cabfc70bdd139a8e90d489e29d11876d98e68
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b09433ee753c83657c5124908bff06da
SHA172af34b4a940cec08a287d5536145cb0c05cce2a
SHA256c4dcb57366a1935cd3084ca7d3916ed6a08dd48ea3fc80dde39b6a72de9c08ff
SHA512705d77bfe215109b753fef4748cb063d17b92f93d5db55317f6fa77b6c74de96f2e79f4f12fe91f23c13d8712a719f0f6d25755c7a259556eca4554660df310f
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Filesize
4.1MB
MD5d607186a125b49d710c32d27381b33b2
SHA12168fbf37fa3801e2cdfd44bcfc633c145699172
SHA25637978e221406de7c9454be93ff242856350231570ca2b7a0575f26ba9bce7617
SHA5124c3801b74466708e3b503db22530014d0ce686980c426399c263ec3a9fa471cd5c564e775001860ca35c08434f615f6a4f11298453c78a074a875ef139b17183
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec