Analysis
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max time kernel
150s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 16:27
Static task
static1
Behavioral task
behavioral1
Sample
2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe
Resource
win10v2004-20240508-en
General
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Target
2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe
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Size
4.1MB
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MD5
cc3a818164350095888eac968fc2fdec
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SHA1
d456a93da14729bdbb25041b0d22f4fbd0636197
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SHA256
2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf
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SHA512
f0ffe11cba556fd6cc26928408dbf5d05d7f132f3bd552c8a257aa96d962f7999e227990622abc398c363d520a0a73445e852bc9b0cc5c40d6af94341541e96f
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SSDEEP
98304:5vHfbigA34ifkpJZQU0TgaIfW6UkFHwAhDtgwFW+1s:5vHfb2IifudqhIuUHwAjW+W
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/2876-2-0x0000000004BE0000-0x00000000054CB000-memory.dmp family_glupteba behavioral2/memory/2876-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2876-80-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2396-118-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2876-120-0x0000000004BE0000-0x00000000054CB000-memory.dmp family_glupteba behavioral2/memory/2876-154-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3880-190-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3880-206-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3880-208-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3880-211-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3880-214-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3880-217-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3880-220-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3880-223-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3880-226-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3880-229-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3880-232-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3880-235-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3880-238-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 4280 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 3880 csrss.exe 840 injector.exe 4536 windefender.exe 4388 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x001b00000002ab25-199.dat upx behavioral2/memory/4536-200-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4388-203-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4536-205-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4388-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4388-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
csrss.exe2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.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\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 File created 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:
2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe -
Drops file in Windows directory 4 IoCs
Processes:
csrss.exe2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exedescription ioc Process 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 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe File created C:\Windows\rss\csrss.exe 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid Process 764 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 1360 powershell.exe 4872 powershell.exe 1508 powershell.exe 3284 powershell.exe 2708 powershell.exe 3412 powershell.exe 3164 powershell.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target Process procid_target 1584 4872 WerFault.exe 81 -
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 672 schtasks.exe 2436 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exepowershell.exepowershell.exewindefender.exe2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exepowershell.exepowershell.exepowershell.exedescription ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-152 = "Central America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-682 = "E. Australia Standard Time" 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time" 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-441 = "Arabian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time" 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1872 = "Russia TZ 7 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time" 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-842 = "Argentina Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time" 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.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\@tzres.dll,-449 = "Azerbaijan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1972 = "Belarus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-452 = "Caucasus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-172 = "Central Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-361 = "GTB Daylight 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" 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople 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,-2532 = "Chatham Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-362 = "GTB Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2752 = "Tomsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time" 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-731 = "Fiji Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-335 = "Jordan 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" 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-661 = "Cen. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-31 = "Mid-Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-592 = "Malay Peninsula Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1412 = "Syria Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time" 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-261 = "GMT Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-92 = "Pacific SA Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exepowershell.exe2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 4872 powershell.exe 4872 powershell.exe 2876 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe 2876 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe 1508 powershell.exe 1508 powershell.exe 2396 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe 2396 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe 2396 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe 2396 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe 2396 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe 2396 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe 2396 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe 2396 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe 2396 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe 2396 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe 3284 powershell.exe 3284 powershell.exe 2708 powershell.exe 2708 powershell.exe 3412 powershell.exe 3412 powershell.exe 3164 powershell.exe 3164 powershell.exe 1360 powershell.exe 1360 powershell.exe 840 injector.exe 840 injector.exe 840 injector.exe 840 injector.exe 840 injector.exe 840 injector.exe 3880 csrss.exe 3880 csrss.exe 840 injector.exe 840 injector.exe 840 injector.exe 840 injector.exe 840 injector.exe 840 injector.exe 3880 csrss.exe 3880 csrss.exe 840 injector.exe 840 injector.exe 3880 csrss.exe 3880 csrss.exe 840 injector.exe 840 injector.exe 840 injector.exe 840 injector.exe 840 injector.exe 840 injector.exe 840 injector.exe 840 injector.exe 840 injector.exe 840 injector.exe 840 injector.exe 840 injector.exe 840 injector.exe 840 injector.exe 840 injector.exe 840 injector.exe 840 injector.exe 840 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 4872 powershell.exe Token: SeDebugPrivilege 2876 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe Token: SeImpersonatePrivilege 2876 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe Token: SeDebugPrivilege 1508 powershell.exe Token: SeDebugPrivilege 3284 powershell.exe Token: SeDebugPrivilege 2708 powershell.exe Token: SeDebugPrivilege 3412 powershell.exe Token: SeDebugPrivilege 3164 powershell.exe Token: SeDebugPrivilege 1360 powershell.exe Token: SeSystemEnvironmentPrivilege 3880 csrss.exe Token: SeSecurityPrivilege 764 sc.exe Token: SeSecurityPrivilege 764 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 2876 wrote to memory of 4872 2876 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe 81 PID 2876 wrote to memory of 4872 2876 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe 81 PID 2876 wrote to memory of 4872 2876 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe 81 PID 2396 wrote to memory of 1508 2396 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe 89 PID 2396 wrote to memory of 1508 2396 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe 89 PID 2396 wrote to memory of 1508 2396 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe 89 PID 2396 wrote to memory of 3868 2396 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe 91 PID 2396 wrote to memory of 3868 2396 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe 91 PID 3868 wrote to memory of 4280 3868 cmd.exe 93 PID 3868 wrote to memory of 4280 3868 cmd.exe 93 PID 2396 wrote to memory of 3284 2396 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe 94 PID 2396 wrote to memory of 3284 2396 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe 94 PID 2396 wrote to memory of 3284 2396 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe 94 PID 2396 wrote to memory of 2708 2396 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe 96 PID 2396 wrote to memory of 2708 2396 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe 96 PID 2396 wrote to memory of 2708 2396 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe 96 PID 2396 wrote to memory of 3880 2396 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe 98 PID 2396 wrote to memory of 3880 2396 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe 98 PID 2396 wrote to memory of 3880 2396 2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe 98 PID 3880 wrote to memory of 3412 3880 csrss.exe 99 PID 3880 wrote to memory of 3412 3880 csrss.exe 99 PID 3880 wrote to memory of 3412 3880 csrss.exe 99 PID 3880 wrote to memory of 3164 3880 csrss.exe 105 PID 3880 wrote to memory of 3164 3880 csrss.exe 105 PID 3880 wrote to memory of 3164 3880 csrss.exe 105 PID 3880 wrote to memory of 1360 3880 csrss.exe 107 PID 3880 wrote to memory of 1360 3880 csrss.exe 107 PID 3880 wrote to memory of 1360 3880 csrss.exe 107 PID 3880 wrote to memory of 840 3880 csrss.exe 109 PID 3880 wrote to memory of 840 3880 csrss.exe 109 PID 4536 wrote to memory of 3500 4536 windefender.exe 115 PID 4536 wrote to memory of 3500 4536 windefender.exe 115 PID 4536 wrote to memory of 3500 4536 windefender.exe 115 PID 3500 wrote to memory of 764 3500 cmd.exe 116 PID 3500 wrote to memory of 764 3500 cmd.exe 116 PID 3500 wrote to memory of 764 3500 cmd.exe 116 -
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\2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe"C:\Users\Admin\AppData\Local\Temp\2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2876 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4872 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4872 -s 22883⤵
- Program crash
PID:1584
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C:\Users\Admin\AppData\Local\Temp\2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.exe"C:\Users\Admin\AppData\Local\Temp\2cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf.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:2396 -
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:1508
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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:3868 -
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:4280
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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:3284
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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:2708
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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:3880 -
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:3412
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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:672
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2188
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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:3164
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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:1360
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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:840
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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:2436
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4536 -
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:3500 -
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:764
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4872 -ip 48721⤵PID:3772
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4388
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
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57bf7b7908b7a1ed1d6c560c0931dd36a
SHA1de25acb37dcd3a2bc9e9b6869cffbf92ac2d5375
SHA2560c3c04decb672041605ea56ea8120c8f0ed7b4f9f3d77256db162ed02ee56cbd
SHA512ce45e23aa743f2cc0f7b64ca4ed1f1556c87c9830f97ab13d5fc2a871536a6a805bc4ead8ff9577b37ed348507332ffe936c828cae0c7f7bd474829bd704d920
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a5ae3a3318f9cd5091a3444261cdb575
SHA1b826c5b54fa44a83a33605465c28c6059ee1a732
SHA256c8c770ee45932698590220d89bc5de1e567a7a41e8f94c5dac2902adbb6a575e
SHA5127dd4282abaaf1563240ce26cc3bcf627711eb22895f47bc9d26eb2ded9094c722370eaa62e2cda274150942d442092c7a8ffb9f892203351929b0dbc7e2e6d29
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD518eb357eae6803e4e7e4bc756c6dd5e7
SHA176d27a61a7a4ef011b94c0fd4ee4674fdb5b6171
SHA2560dcc5d30e7867b67e2768e2b92606c26c281eafcb33a9f4065674f25360a3c22
SHA51233b019ae5e12f5bd98a07ffd4691155991a83df9acac61d2114448b1c489e4a848331b784662f7cad0a86fd1d1a9011ee1ce54af326d75035ca869e9b07669b2
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b3da67c63a026ef2fcb8100de4aab3d9
SHA1c098743676a66a198c83e37229529b9b9cf4b1a3
SHA25657e9cfd00fb873ff06d4a1b9c2b9c380f8e837059f04a7c64da7838b87e312f1
SHA51258b6c4c61c9b2365a84d8e5191839217f1384c90e37867d544c29a98cdebfbe5e25d5998d23f591cb6dba8b4cfb3aac28cbe297d65eb730254a9429801f24adb
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD589f0ecff80075105101506d3a647c8f7
SHA1315c241494e612e8800a590a04d2ea86839dcc87
SHA2569a82133ca2e450e50421367a25961dd290d00f8d96ff562d0d3809105f4ba132
SHA5121f143cb75a18eb1342caebd6fcb7281c7b1fef7fc637462fb4c1db91eb65dfae73c3ef7e3525aa36d0b58f08af896ec60ec0fe2094f9a00bd52c661099b0d10d
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Filesize
4.1MB
MD5cc3a818164350095888eac968fc2fdec
SHA1d456a93da14729bdbb25041b0d22f4fbd0636197
SHA2562cd989a642e7271bba17689b3d9dd31473cd1a0da797528ec68b7a2ccd3c1ccf
SHA512f0ffe11cba556fd6cc26928408dbf5d05d7f132f3bd552c8a257aa96d962f7999e227990622abc398c363d520a0a73445e852bc9b0cc5c40d6af94341541e96f
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec