Analysis
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max time kernel
150s -
max time network
138s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-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 18 IoCs
Processes:
resource yara_rule behavioral2/memory/4972-2-0x0000000004950000-0x000000000523B000-memory.dmp family_glupteba behavioral2/memory/4972-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4972-72-0x0000000004950000-0x000000000523B000-memory.dmp family_glupteba behavioral2/memory/4972-70-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4972-108-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1552-125-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4988-192-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4988-201-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4988-213-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4988-217-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4988-221-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4988-224-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4988-229-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4988-233-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4988-237-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4988-240-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4988-244-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4988-249-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 2980 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 4988 csrss.exe 2532 injector.exe 2408 windefender.exe 1544 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x000100000002aa67-204.dat upx behavioral2/memory/2408-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1544-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2408-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1544-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1544-222-0x0000000000400000-0x00000000008DF000-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-1-5-21-3433428765-2473475212-4279855560-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Set value (str) \REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\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\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:
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 3216 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 1524 powershell.exe 2356 powershell.exe 2520 powershell.exe 2136 powershell.exe 4180 powershell.exe 880 powershell.exe 4664 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 396 schtasks.exe 4576 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exepowershell.exepowershell.exepowershell.exewindefender.exepowershell.exepowershell.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1831 = "Russia TZ 2 Daylight 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,-651 = "AUS Central Daylight Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2392 = "Aleutian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-282 = "Central Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.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" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-434 = "Georgian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-385 = "Namibia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-872 = "Pakistan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-432 = "Iran Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" 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 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\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.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\C:\Windows\system32\,@tzres.dll,-682 = "E. Australia Standard Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-281 = "Central Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1721 = "Libya 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" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.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,-11 = "Azores Daylight Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.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\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-742 = "New Zealand 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" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2182 = "Astrakhan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-271 = "Greenwich Daylight 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" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time" fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-222 = "Alaskan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-105 = "Central Brazilian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2532 = "Chatham Islands Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exefb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exepowershell.exefb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 2356 powershell.exe 2356 powershell.exe 4972 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 4972 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 2520 powershell.exe 2520 powershell.exe 1552 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 1552 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 1552 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 1552 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 1552 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 1552 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 1552 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 1552 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 1552 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 1552 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 2136 powershell.exe 2136 powershell.exe 4180 powershell.exe 4180 powershell.exe 880 powershell.exe 880 powershell.exe 4664 powershell.exe 4664 powershell.exe 1524 powershell.exe 1524 powershell.exe 2532 injector.exe 2532 injector.exe 2532 injector.exe 2532 injector.exe 2532 injector.exe 2532 injector.exe 4988 csrss.exe 4988 csrss.exe 2532 injector.exe 2532 injector.exe 2532 injector.exe 2532 injector.exe 2532 injector.exe 2532 injector.exe 4988 csrss.exe 4988 csrss.exe 2532 injector.exe 2532 injector.exe 2532 injector.exe 2532 injector.exe 4988 csrss.exe 4988 csrss.exe 2532 injector.exe 2532 injector.exe 2532 injector.exe 2532 injector.exe 2532 injector.exe 2532 injector.exe 2532 injector.exe 2532 injector.exe 2532 injector.exe 2532 injector.exe 2532 injector.exe 2532 injector.exe 2532 injector.exe 2532 injector.exe 2532 injector.exe 2532 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exefb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 2356 powershell.exe Token: SeDebugPrivilege 4972 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Token: SeImpersonatePrivilege 4972 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe Token: SeDebugPrivilege 2520 powershell.exe Token: SeDebugPrivilege 2136 powershell.exe Token: SeDebugPrivilege 4180 powershell.exe Token: SeDebugPrivilege 880 powershell.exe Token: SeDebugPrivilege 4664 powershell.exe Token: SeDebugPrivilege 1524 powershell.exe Token: SeSystemEnvironmentPrivilege 4988 csrss.exe Token: SeSecurityPrivilege 3216 sc.exe Token: SeSecurityPrivilege 3216 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exefb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 4972 wrote to memory of 2356 4972 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 82 PID 4972 wrote to memory of 2356 4972 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 82 PID 4972 wrote to memory of 2356 4972 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 82 PID 1552 wrote to memory of 2520 1552 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 87 PID 1552 wrote to memory of 2520 1552 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 87 PID 1552 wrote to memory of 2520 1552 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 87 PID 1552 wrote to memory of 3528 1552 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 89 PID 1552 wrote to memory of 3528 1552 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 89 PID 3528 wrote to memory of 2980 3528 cmd.exe 91 PID 3528 wrote to memory of 2980 3528 cmd.exe 91 PID 1552 wrote to memory of 2136 1552 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 92 PID 1552 wrote to memory of 2136 1552 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 92 PID 1552 wrote to memory of 2136 1552 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 92 PID 1552 wrote to memory of 4180 1552 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 94 PID 1552 wrote to memory of 4180 1552 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 94 PID 1552 wrote to memory of 4180 1552 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 94 PID 1552 wrote to memory of 4988 1552 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 96 PID 1552 wrote to memory of 4988 1552 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 96 PID 1552 wrote to memory of 4988 1552 fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe 96 PID 4988 wrote to memory of 880 4988 csrss.exe 97 PID 4988 wrote to memory of 880 4988 csrss.exe 97 PID 4988 wrote to memory of 880 4988 csrss.exe 97 PID 4988 wrote to memory of 4664 4988 csrss.exe 103 PID 4988 wrote to memory of 4664 4988 csrss.exe 103 PID 4988 wrote to memory of 4664 4988 csrss.exe 103 PID 4988 wrote to memory of 1524 4988 csrss.exe 105 PID 4988 wrote to memory of 1524 4988 csrss.exe 105 PID 4988 wrote to memory of 1524 4988 csrss.exe 105 PID 4988 wrote to memory of 2532 4988 csrss.exe 107 PID 4988 wrote to memory of 2532 4988 csrss.exe 107 PID 2408 wrote to memory of 2816 2408 windefender.exe 113 PID 2408 wrote to memory of 2816 2408 windefender.exe 113 PID 2408 wrote to memory of 2816 2408 windefender.exe 113 PID 2816 wrote to memory of 3216 2816 cmd.exe 114 PID 2816 wrote to memory of 3216 2816 cmd.exe 114 PID 2816 wrote to memory of 3216 2816 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\fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe"C:\Users\Admin\AppData\Local\Temp\fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4972 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2356
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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:1552 -
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:2520
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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:3528 -
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:2980
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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:2136
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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:4180
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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:4988 -
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:880
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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:4576
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2988
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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:4664
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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:1524
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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:2532
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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:396
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2408 -
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:2816 -
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:3216
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1544
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
MD59c0ce1fcf7d3d1b7fde4129af67bbb0a
SHA13f573b452701ca567cd70930d8bb7edd205611f0
SHA256e7ddcaa971cb57af8bf4ef34c06a3147ac41b872c394d6607c7fea8b59b39ae6
SHA5121721b81159196dd17a0a3dc3cd5f6e12f0d5c10f53da473741445e669a39206eeb73e57ed385f4cf4219f18af3db6c93cb1db0fa5f753bb729746a3e30f2f198
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD531437616947f661fe2937bbeab445fd2
SHA1bba37f0c7464f93d36f0c0caa29f44a55d940760
SHA256bae48d11ff025beed9e5a53b9ee559c96a8461c7fa5760174fdd3f243fba8f72
SHA51298b806e3f40ca4f40a558225d537cc46eda5337da44ad34a5c0bd83fcf6f1c88583c904866097b0d4a43d6c0ba9a037558e2819d21cfc2fc52a1cfd002f0046f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5913bf4403942dbc27bf2acb46366670c
SHA1fbe7f8a18638e97733404eb4e28858b41ad45c87
SHA2568d7f9d3f2711f412faa435fccf16142b484e687f50ec7987e1eba4a6821f5455
SHA5122c49552db9114668f1e26f824308b1c464947ff5b0e6a3a109a1d5fe9189d1b49df0d71d18211552355383dae833e197618d3a6fa716e4b3b91ed4084acb1225
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56d02f0a79d16410fc63e3b3253ea276d
SHA1a407a5eadeb7556a352da76f631dc4878f6faa61
SHA256d2c2c9804023a9c8bc7b981fe0f63c5d102b71b0636cc5b5db1e705c5789587d
SHA51208e2ced648a1584923d8cb8ccdf8bfd4d120a16393043765d7ecdbb5db9b88848a8aa61b3136e0d8123ca54f41e9da976157a66ebd537e8214f3d6e8c45baf42
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5632db0ed6561836f3a2842748d57c47c
SHA1270fdc7ebf0b488db973cede7495544c64d3217e
SHA256217a143bce72cd30ebd585061bb79b177c8a0bf32314eb2e817fc2d1a6207567
SHA5126e0461ea4df98cf0e8cc566a1a5cdadb20c966d1a811012b9be976a27104927109d2549fefaebcecd2c4ff7e3958c98c95ea6c4e528eb3f75010e4f46eb17039
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Filesize
4.1MB
MD5522ee444331e9a6e8e5b3397e635cb09
SHA124dbdf3bf1a9c5febf3f4e2922f546d6a201eac9
SHA256fb71aaafa54ec10832800cd1d085286711e90986595767208b487618c81a384d
SHA51293262adf9d0b6772688aa007c3896e3c968abc4e1d66e9398b3d37997a1f36f31b18ba046fd592db07f28dca9161b22722120a296c40aaf9f01a4389e67932af
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec