Analysis
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max time kernel
150s -
max time network
138s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
19-05-2024 20:35
Static task
static1
Behavioral task
behavioral1
Sample
fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe
Resource
win10v2004-20240508-en
General
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Target
fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe
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Size
4.1MB
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MD5
522ee444331e9a6e8e5b3397e635cb09
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SHA1
24dbdf3bf1a9c5febf3f4e2922f546d6a201eac9
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SHA256
fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d
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SHA512
93262adf9d0b6772688aa007c3896e3c968abc4e1d66e9398b3d37997a1f36f31b18ba046fd592db07f28dca9161b22722120a296c40aaf9f01a4389e67932af
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SSDEEP
98304:b7sgfTqZm7fywQIpjGUn+cmloZHued8miXbTsPufBvNZ:bzgmDywQg+foZ8mw6S3
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral1/memory/2576-2-0x0000000004930000-0x000000000521B000-memory.dmp family_glupteba behavioral1/memory/2576-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2576-81-0x0000000004930000-0x000000000521B000-memory.dmp family_glupteba behavioral1/memory/2576-80-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2576-107-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3892-130-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/3892-210-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/3948-211-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/3948-223-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/3948-230-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/3948-234-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/3948-238-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/3948-242-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/3948-246-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/3948-250-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/3948-254-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/3948-258-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/3948-262-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/3948-266-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 4552 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 3948 csrss.exe 3324 injector.exe 3920 windefender.exe 5072 windefender.exe -
Processes:
resource yara_rule behavioral1/files/0x00090000000233d9-219.dat upx behavioral1/memory/3920-222-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/5072-226-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3920-227-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/5072-231-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/5072-239-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Set value (str) \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\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 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 -
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:
fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe -
Drops file in Windows directory 4 IoCs
Processes:
fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe File created C:\Windows\rss\csrss.exe fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.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 3484 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 4740 powershell.exe 2240 powershell.exe 4228 powershell.exe 4872 powershell.exe 4868 powershell.exe 2920 powershell.exe 3640 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 4648 schtasks.exe 3140 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exepowershell.exepowershell.exewindefender.exefb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exepowershell.exepowershell.exepowershell.exedescription ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-691 = "Tasmania Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.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\@tzres.dll,-2631 = "Norfolk Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.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,-11 = "Azores Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-412 = "E. Africa Standard Time" windefender.exe 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,-2771 = "Omsk Daylight Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.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,-3052 = "Qyzylorda Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3051 = "Qyzylorda Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.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\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-892 = "Morocco Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3142 = "South Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2492 = "Aus Central W. Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2841 = "Saratov Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.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\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-651 = "AUS Central Daylight Time" windefender.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\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust 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,-462 = "Afghanistan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-332 = "E. Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1501 = "Turkey Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.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,-501 = "Nepal Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-962 = "Paraguay Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2391 = "Aleutian 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,-2322 = "Sakhalin Standard 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\@tzres.dll,-132 = "US Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exefb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exepowershell.exefb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 4228 powershell.exe 4228 powershell.exe 2576 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 2576 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 4872 powershell.exe 4872 powershell.exe 3892 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 3892 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 3892 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 3892 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 3892 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 3892 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 3892 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 3892 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 3892 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 3892 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 4868 powershell.exe 4868 powershell.exe 2920 powershell.exe 2920 powershell.exe 3640 powershell.exe 3640 powershell.exe 4740 powershell.exe 4740 powershell.exe 2240 powershell.exe 2240 powershell.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3948 csrss.exe 3948 csrss.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3948 csrss.exe 3948 csrss.exe 3324 injector.exe 3324 injector.exe 3948 csrss.exe 3948 csrss.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe 3324 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exefb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 4228 powershell.exe Token: SeDebugPrivilege 2576 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Token: SeImpersonatePrivilege 2576 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Token: SeDebugPrivilege 4872 powershell.exe Token: SeDebugPrivilege 4868 powershell.exe Token: SeDebugPrivilege 2920 powershell.exe Token: SeDebugPrivilege 3640 powershell.exe Token: SeDebugPrivilege 4740 powershell.exe Token: SeDebugPrivilege 2240 powershell.exe Token: SeSystemEnvironmentPrivilege 3948 csrss.exe Token: SeSecurityPrivilege 3484 sc.exe Token: SeSecurityPrivilege 3484 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exefb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 2576 wrote to memory of 4228 2576 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 82 PID 2576 wrote to memory of 4228 2576 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 82 PID 2576 wrote to memory of 4228 2576 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 82 PID 3892 wrote to memory of 4872 3892 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 90 PID 3892 wrote to memory of 4872 3892 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 90 PID 3892 wrote to memory of 4872 3892 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 90 PID 3892 wrote to memory of 64 3892 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 94 PID 3892 wrote to memory of 64 3892 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 94 PID 64 wrote to memory of 4552 64 cmd.exe 96 PID 64 wrote to memory of 4552 64 cmd.exe 96 PID 3892 wrote to memory of 4868 3892 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 97 PID 3892 wrote to memory of 4868 3892 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 97 PID 3892 wrote to memory of 4868 3892 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 97 PID 3892 wrote to memory of 2920 3892 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 99 PID 3892 wrote to memory of 2920 3892 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 99 PID 3892 wrote to memory of 2920 3892 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 99 PID 3892 wrote to memory of 3948 3892 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 101 PID 3892 wrote to memory of 3948 3892 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 101 PID 3892 wrote to memory of 3948 3892 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 101 PID 3948 wrote to memory of 3640 3948 csrss.exe 102 PID 3948 wrote to memory of 3640 3948 csrss.exe 102 PID 3948 wrote to memory of 3640 3948 csrss.exe 102 PID 3948 wrote to memory of 4740 3948 csrss.exe 108 PID 3948 wrote to memory of 4740 3948 csrss.exe 108 PID 3948 wrote to memory of 4740 3948 csrss.exe 108 PID 3948 wrote to memory of 2240 3948 csrss.exe 110 PID 3948 wrote to memory of 2240 3948 csrss.exe 110 PID 3948 wrote to memory of 2240 3948 csrss.exe 110 PID 3948 wrote to memory of 3324 3948 csrss.exe 113 PID 3948 wrote to memory of 3324 3948 csrss.exe 113 PID 3920 wrote to memory of 3320 3920 windefender.exe 119 PID 3920 wrote to memory of 3320 3920 windefender.exe 119 PID 3920 wrote to memory of 3320 3920 windefender.exe 119 PID 3320 wrote to memory of 3484 3320 cmd.exe 120 PID 3320 wrote to memory of 3484 3320 cmd.exe 120 PID 3320 wrote to memory of 3484 3320 cmd.exe 120 -
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\fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe"C:\Users\Admin\AppData\Local\Temp\fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2576 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4228
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C:\Users\Admin\AppData\Local\Temp\fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe"C:\Users\Admin\AppData\Local\Temp\fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.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:3892 -
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:4872
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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:64 -
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:4552
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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:4868
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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:2920
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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:3948 -
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:3640
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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:4648
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2456
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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:4740
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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:2240
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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:3324
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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:3140
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3920 -
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:3320 -
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:3484
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:5072
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD53d086a433708053f9bf9523e1d87a4e8
SHA1b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA2566f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
SHA512931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5495c8e9e7004d6ddd17d813992447ff7
SHA1c1ea93f572b4e2b9021de9f10772370fc45b82c2
SHA2568721a576d1c51f3c718b89ed9f0ca1e6023308d386d06553c652e365c21f6c80
SHA512b658a77d7ff15bfcb690cb6abaf2c65e0dda681b629e0479c6318a734d8417ca34570c0ab649a11f16d7885ee458edd6f8b0fb0cd69687211b86495b81d08303
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5737c4f98364734f38d3ad9415e89d92a
SHA179a8f310241f58d4dff91f7655197a2acfe5cab4
SHA256e41b43f37cb7f22b0c4d96ae3d0acd5701c7e84287c7e3a58bab60f1bea3d6c9
SHA512f9461bb7c00acd5ce135b17271b38d04a7fb7ef9d881de64e33a370b2462ed2414b91d7596efbbbf9c1c1002d853614f743279573776c81ec0b054e8e03611fc
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54f25616c79f9e6ab6a04ea0a4f484fb9
SHA14d59f41577160656b0c31397ed27db07f6ddf59e
SHA2569c20dd05058b6b939fcb40382eebae2aec707d3beb119e78a828d3f07c57f2aa
SHA512794be52bae0f8e5f79d125569776ca78b093b0c7032bb04968b5526e8333872eab7662253d485fe2658b1adf64433bcb5a3ba1a92cfe7966ee8f11815394fee7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5cbbd9a9d724d25d23facc0d7a52b227b
SHA1c041507d6882fbe2ec18ecfc4034b76bdcdc49d6
SHA256d634c7f5b4ae56259a2b4291ef7962699da2f71bdad59934082f5e3a82c0d8b9
SHA512576f2c471a1db31a44dc725d7ae51ba0b44e7d9633b3075024b6540165750d9c7bbb8ee156ec9c554a6e0e727387280600d1b4285fe407086b0e77a8dad40f36
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b15b37ffc4b8847a4f9026ece63622d9
SHA198f9301f792893c0b1cd2f48b5b4ee3da993c46e
SHA256153f5e635da93b5a7d5b5d2c2b97e4dce2cbbfeca177c4f3fd9b42e49534f70c
SHA512c6a26f473612e84edd718fa43755300f6cc59e9905a691e958e6ba775927017ed955cbc9880d3968d7c40003a9cacb868740681d14c42dced1f74c3aaca40ec1
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Filesize
4.1MB
MD5522ee444331e9a6e8e5b3397e635cb09
SHA124dbdf3bf1a9c5febf3f4e2922f546d6a201eac9
SHA256fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d
SHA51293262adf9d0b6772688aa007c3896e3c968abc4e1d66e9398b3d37997a1f36f31b18ba046fd592db07f28dca9161b22722120a296c40aaf9f01a4389e67932af
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec