Analysis
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max time kernel
150s -
max time network
144s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
16-05-2024 09:45
Static task
static1
Behavioral task
behavioral1
Sample
f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe
Resource
win10v2004-20240508-en
General
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Target
f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe
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Size
4.1MB
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MD5
b5b0cf564843c8f1979fe981a0e75027
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SHA1
3ea177d17eedd764b842201ef959dc27c02a4a78
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SHA256
f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78
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SHA512
671be16fbd66db94ce1c9d0a52ee463f2c3b414a135bff32d49be436068c22cd82bc9bbbcb178172fb60fc2c86028856ca725204fe88385cc4a5f909f14a8432
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SSDEEP
98304:9H49zrfgobu9aDMWAg4dPDb/NQHvakIF/A8L3rqLZk5t2qZ3qL2LAZ57:Ur7OagDbOPW/F2k5tRZaLrJ
Malware Config
Signatures
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Glupteba payload 17 IoCs
Processes:
resource yara_rule behavioral2/memory/4800-2-0x0000000002EA0000-0x000000000378B000-memory.dmp family_glupteba behavioral2/memory/4800-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4800-48-0x0000000002EA0000-0x000000000378B000-memory.dmp family_glupteba behavioral2/memory/4800-53-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1380-127-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3168-196-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3168-207-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3168-215-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3168-218-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3168-221-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3168-224-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3168-227-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3168-230-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3168-233-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3168-236-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3168-239-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3168-242-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 440 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 3168 csrss.exe 2144 injector.exe 3300 windefender.exe 3644 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x000200000002a9e0-206.dat upx behavioral2/memory/3300-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3644-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3300-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3644-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3644-222-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\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 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 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:
f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe -
Drops file in Windows directory 4 IoCs
Processes:
f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe File created C:\Windows\rss\csrss.exe f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.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 3376 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 4516 powershell.exe 3848 powershell.exe 4640 powershell.exe 1828 powershell.exe 1544 powershell.exe 1656 powershell.exe 2480 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 4480 schtasks.exe 2664 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exef1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exepowershell.exewindefender.exepowershell.exedescription ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\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\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time" f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-351 = "FLE Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-692 = "Tasmania Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-601 = "Taipei Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time" f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.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,-81 = "Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2612 = "Bougainville Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2321 = "Sakhalin Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-932 = "Coordinated Universal Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2161 = "Altai Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-242 = "Samoa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs 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,-401 = "Arabic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time" f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-842 = "Argentina Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1022 = "Bangladesh 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\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs 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\@tzres.dll,-215 = "Pacific Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-682 = "E. Australia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2342 = "Haiti Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-331 = "E. Europe Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exef1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exepowershell.exef1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 1656 powershell.exe 1656 powershell.exe 4800 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe 4800 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe 2480 powershell.exe 2480 powershell.exe 1380 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe 1380 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe 1380 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe 1380 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe 1380 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe 1380 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe 1380 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe 1380 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe 1380 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe 1380 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe 4516 powershell.exe 4516 powershell.exe 3848 powershell.exe 3848 powershell.exe 4640 powershell.exe 4640 powershell.exe 1828 powershell.exe 1828 powershell.exe 1544 powershell.exe 1544 powershell.exe 2144 injector.exe 2144 injector.exe 2144 injector.exe 2144 injector.exe 2144 injector.exe 2144 injector.exe 3168 csrss.exe 3168 csrss.exe 2144 injector.exe 2144 injector.exe 2144 injector.exe 2144 injector.exe 2144 injector.exe 2144 injector.exe 3168 csrss.exe 3168 csrss.exe 2144 injector.exe 2144 injector.exe 3168 csrss.exe 3168 csrss.exe 2144 injector.exe 2144 injector.exe 2144 injector.exe 2144 injector.exe 2144 injector.exe 2144 injector.exe 2144 injector.exe 2144 injector.exe 2144 injector.exe 2144 injector.exe 2144 injector.exe 2144 injector.exe 2144 injector.exe 2144 injector.exe 2144 injector.exe 2144 injector.exe 2144 injector.exe 2144 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exef1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 1656 powershell.exe Token: SeDebugPrivilege 4800 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe Token: SeImpersonatePrivilege 4800 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe Token: SeDebugPrivilege 2480 powershell.exe Token: SeDebugPrivilege 4516 powershell.exe Token: SeDebugPrivilege 3848 powershell.exe Token: SeDebugPrivilege 4640 powershell.exe Token: SeDebugPrivilege 1828 powershell.exe Token: SeDebugPrivilege 1544 powershell.exe Token: SeSystemEnvironmentPrivilege 3168 csrss.exe Token: SeSecurityPrivilege 3376 sc.exe Token: SeSecurityPrivilege 3376 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exef1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 4800 wrote to memory of 1656 4800 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe 82 PID 4800 wrote to memory of 1656 4800 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe 82 PID 4800 wrote to memory of 1656 4800 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe 82 PID 1380 wrote to memory of 2480 1380 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe 87 PID 1380 wrote to memory of 2480 1380 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe 87 PID 1380 wrote to memory of 2480 1380 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe 87 PID 1380 wrote to memory of 4876 1380 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe 89 PID 1380 wrote to memory of 4876 1380 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe 89 PID 4876 wrote to memory of 440 4876 cmd.exe 91 PID 4876 wrote to memory of 440 4876 cmd.exe 91 PID 1380 wrote to memory of 4516 1380 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe 92 PID 1380 wrote to memory of 4516 1380 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe 92 PID 1380 wrote to memory of 4516 1380 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe 92 PID 1380 wrote to memory of 3848 1380 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe 94 PID 1380 wrote to memory of 3848 1380 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe 94 PID 1380 wrote to memory of 3848 1380 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe 94 PID 1380 wrote to memory of 3168 1380 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe 96 PID 1380 wrote to memory of 3168 1380 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe 96 PID 1380 wrote to memory of 3168 1380 f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe 96 PID 3168 wrote to memory of 4640 3168 csrss.exe 97 PID 3168 wrote to memory of 4640 3168 csrss.exe 97 PID 3168 wrote to memory of 4640 3168 csrss.exe 97 PID 3168 wrote to memory of 1828 3168 csrss.exe 103 PID 3168 wrote to memory of 1828 3168 csrss.exe 103 PID 3168 wrote to memory of 1828 3168 csrss.exe 103 PID 3168 wrote to memory of 1544 3168 csrss.exe 105 PID 3168 wrote to memory of 1544 3168 csrss.exe 105 PID 3168 wrote to memory of 1544 3168 csrss.exe 105 PID 3168 wrote to memory of 2144 3168 csrss.exe 107 PID 3168 wrote to memory of 2144 3168 csrss.exe 107 PID 3300 wrote to memory of 3108 3300 windefender.exe 113 PID 3300 wrote to memory of 3108 3300 windefender.exe 113 PID 3300 wrote to memory of 3108 3300 windefender.exe 113 PID 3108 wrote to memory of 3376 3108 cmd.exe 114 PID 3108 wrote to memory of 3376 3108 cmd.exe 114 PID 3108 wrote to memory of 3376 3108 cmd.exe 114 -
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\f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe"C:\Users\Admin\AppData\Local\Temp\f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4800 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1656
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C:\Users\Admin\AppData\Local\Temp\f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.exe"C:\Users\Admin\AppData\Local\Temp\f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78.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:1380 -
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:2480
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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:4876 -
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:440
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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:4516
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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:3848
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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:3168 -
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:4640
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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:4480
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2844
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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:1828
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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:1544
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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:2144
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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:2664
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3300 -
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:3108 -
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:3376
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3644
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD525ab2e36a7c5dadfca9053119d251e08
SHA14c062a8666b6b7cea05b5b0ecdf5587ee3ce264c
SHA2563de1ef096d2b56f62e56062dbaeb9488f40dc1871c41c02e3699808fbba9a34e
SHA5128b0cb0fbc9e60c57dd5290f221d4605a8dce049c102df5e231be03c76c75083cd4aa13c596e1efecfa7104dc82f37f58a9c86dcecc7842547023fc4bf8a1049d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD579c7f50699169ded28548ae357f7686f
SHA18307a8acdd81ecd9443eb75161e7ede2e6ab09c2
SHA2567f0f580575481f51bfb2ce31edbb1bcfbea16d9204ab7f890bb84a5a37f05b71
SHA5122394160a7c8d834e7f38b2e73a88baa11de365594a81705e594da2f65788df04a957463d2a7c5ccee6128f0480c47940fedf492dcc9ea071eb090539900b1c49
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d496fc20a5b737a8aa206190dbe1aacd
SHA15900fd51b0ab1485a345abcd47adca20e6d2e692
SHA256839677a73732912e1fdc9addec73e6cd258ff1cf86e85fbce4b297cb955b06d0
SHA51269466d122378952d2bc641c6c1ee41138e95e6767532733e823eeacedd352c8bbe19da2c3b6fc06740668d611215bb78d414fa130c50aef14416dc3eaf9e2ef3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a942ce92c71d212739c172bedc2c9302
SHA12620411a986326c4a571e93d1a709057d82374db
SHA25606f26ba0c7037457227abb6026b952a9a43e503570a61f007e987c6b37aac51b
SHA51214c51594e132e7f5c7f48f34d5ea19c915487d0c0a63f6f55bd2244b6429b2a816156b8ac74744f70c4a46ce39a0ba369cd2eec05aa03021bb040c61d8c59946
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e315a1cf205fe7f6cc573cc20dcb609a
SHA197235b072d6853a950b893e88565d4d97dede2da
SHA2566d2ab43022a1e1129e34ec985df01000ee49cce0937c4a24ea5a4328c1041502
SHA51233e8dad1a80d6ea7c83d18f4a04bd9903bf8d77f2edec182711f65580e10426a90d1610afbe237a246fabf3e0822602786c7ea5a2bdae259b9e5c80ed9216a7a
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Filesize
4.1MB
MD5b5b0cf564843c8f1979fe981a0e75027
SHA13ea177d17eedd764b842201ef959dc27c02a4a78
SHA256f1cee50c69222f92109b8f41daaa70585ac7eccdaf1cb5e2f2780c44f5b4ea78
SHA512671be16fbd66db94ce1c9d0a52ee463f2c3b414a135bff32d49be436068c22cd82bc9bbbcb178172fb60fc2c86028856ca725204fe88385cc4a5f909f14a8432
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec