Analysis
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max time kernel
151s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
19-05-2024 11:24
Static task
static1
Behavioral task
behavioral1
Sample
b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe
Resource
win10v2004-20240226-en
General
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Target
b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe
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Size
4.1MB
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MD5
809d48296919decb9e35f37b81569f62
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SHA1
2f0f4c33547ec7f403cbbe7eb58a0fabc28b5ead
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SHA256
b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6
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SHA512
05157c49a30084d497d01820c53f2b252931ea2f5a30a24424274bf94d787e93868132be78b0295006c3a8a3aadd7141b43769dd2aab4f1866a730cb1405af9b
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SSDEEP
98304:1H+PiUxpnK5pcCD6RLXH4DRMjOnEmJ5mWZ44js55cU5wvI2r:1H+PiSfw6Rz4ejOEAZ44S5J5ww2r
Malware Config
Signatures
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Glupteba payload 20 IoCs
Processes:
resource yara_rule behavioral1/memory/3604-2-0x0000000004710000-0x0000000004FFB000-memory.dmp family_glupteba behavioral1/memory/3604-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3604-9-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/3604-27-0x0000000004710000-0x0000000004FFB000-memory.dmp family_glupteba behavioral1/memory/3604-35-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3604-32-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/3604-61-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3604-59-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/4472-101-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/4472-135-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/4472-140-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/816-181-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/816-209-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/816-227-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/816-237-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/816-239-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/816-241-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/816-242-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/816-245-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral1/memory/816-247-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 4424 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 816 csrss.exe 4920 injector.exe 1088 windefender.exe 3644 windefender.exe -
Processes:
resource yara_rule behavioral1/files/0x0015000000016fa5-230.dat upx behavioral1/memory/1088-231-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3644-234-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1088-236-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3644-238-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3644-243-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
Processes:
csrss.exedescription ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File 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 -
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:
b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe -
Drops file in Windows directory 4 IoCs
Processes:
csrss.exeb4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exedescription ioc Process File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe File created C:\Windows\rss\csrss.exe b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe File created 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 2396 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 2448 powershell.exe 264 powershell.exe 1732 powershell.exe 3008 powershell.exe 3644 powershell.exe 1472 powershell.exe 3412 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 2476 schtasks.exe 4684 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
windefender.exeb4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-281 = "Central Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-42 = "E. South America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-242 = "Samoa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs 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\22\52C64B7E\@tzres.dll,-652 = "AUS Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-671 = "AUS Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 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\22\52C64B7E\@tzres.dll,-291 = "Central European Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-792 = "SA Western Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs 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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-332 = "E. Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1912 = "Russia TZ 10 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-382 = "South Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.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\ProxyBypass = "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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1832 = "Russia TZ 2 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.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\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates 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\22\52C64B7E\@tzres.dll,-351 = "FLE Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-449 = "Azerbaijan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-911 = "Mauritius Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-331 = "E. Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-112 = "Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-192 = "Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-411 = "E. Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2322 = "Sakhalin Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-132 = "US Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-841 = "Argentina Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-335 = "Jordan Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exeb4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exepowershell.exeb4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 1732 powershell.exe 1732 powershell.exe 3604 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 3604 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 3008 powershell.exe 3008 powershell.exe 4472 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 4472 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 4472 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 4472 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 4472 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 4472 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 4472 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 4472 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 4472 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 4472 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 3644 powershell.exe 3644 powershell.exe 1472 powershell.exe 1472 powershell.exe 1472 powershell.exe 3412 powershell.exe 3412 powershell.exe 3412 powershell.exe 2448 powershell.exe 2448 powershell.exe 2448 powershell.exe 264 powershell.exe 264 powershell.exe 264 powershell.exe 4920 injector.exe 4920 injector.exe 4920 injector.exe 4920 injector.exe 4920 injector.exe 4920 injector.exe 4920 injector.exe 816 csrss.exe 4920 injector.exe 816 csrss.exe 4920 injector.exe 4920 injector.exe 4920 injector.exe 4920 injector.exe 816 csrss.exe 816 csrss.exe 4920 injector.exe 4920 injector.exe 4920 injector.exe 4920 injector.exe 4920 injector.exe 4920 injector.exe 4920 injector.exe 4920 injector.exe 4920 injector.exe 4920 injector.exe 816 csrss.exe 816 csrss.exe 4920 injector.exe 4920 injector.exe 4920 injector.exe 4920 injector.exe 4920 injector.exe 4920 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exeb4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 1732 powershell.exe Token: SeDebugPrivilege 3604 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Token: SeImpersonatePrivilege 3604 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe Token: SeDebugPrivilege 3008 powershell.exe Token: SeDebugPrivilege 3644 powershell.exe Token: SeDebugPrivilege 1472 powershell.exe Token: SeDebugPrivilege 3412 powershell.exe Token: SeDebugPrivilege 2448 powershell.exe Token: SeDebugPrivilege 264 powershell.exe Token: SeSystemEnvironmentPrivilege 816 csrss.exe Token: SeSecurityPrivilege 2396 sc.exe Token: SeSecurityPrivilege 2396 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exeb4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 3604 wrote to memory of 1732 3604 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 91 PID 3604 wrote to memory of 1732 3604 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 91 PID 3604 wrote to memory of 1732 3604 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 91 PID 4472 wrote to memory of 3008 4472 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 96 PID 4472 wrote to memory of 3008 4472 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 96 PID 4472 wrote to memory of 3008 4472 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 96 PID 4472 wrote to memory of 916 4472 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 99 PID 4472 wrote to memory of 916 4472 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 99 PID 916 wrote to memory of 4424 916 cmd.exe 101 PID 916 wrote to memory of 4424 916 cmd.exe 101 PID 4472 wrote to memory of 3644 4472 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 102 PID 4472 wrote to memory of 3644 4472 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 102 PID 4472 wrote to memory of 3644 4472 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 102 PID 4472 wrote to memory of 1472 4472 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 106 PID 4472 wrote to memory of 1472 4472 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 106 PID 4472 wrote to memory of 1472 4472 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 106 PID 4472 wrote to memory of 816 4472 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 112 PID 4472 wrote to memory of 816 4472 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 112 PID 4472 wrote to memory of 816 4472 b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe 112 PID 816 wrote to memory of 3412 816 csrss.exe 113 PID 816 wrote to memory of 3412 816 csrss.exe 113 PID 816 wrote to memory of 3412 816 csrss.exe 113 PID 816 wrote to memory of 2448 816 csrss.exe 118 PID 816 wrote to memory of 2448 816 csrss.exe 118 PID 816 wrote to memory of 2448 816 csrss.exe 118 PID 816 wrote to memory of 264 816 csrss.exe 121 PID 816 wrote to memory of 264 816 csrss.exe 121 PID 816 wrote to memory of 264 816 csrss.exe 121 PID 816 wrote to memory of 4920 816 csrss.exe 123 PID 816 wrote to memory of 4920 816 csrss.exe 123 PID 1088 wrote to memory of 5044 1088 windefender.exe 129 PID 1088 wrote to memory of 5044 1088 windefender.exe 129 PID 1088 wrote to memory of 5044 1088 windefender.exe 129 PID 5044 wrote to memory of 2396 5044 cmd.exe 130 PID 5044 wrote to memory of 2396 5044 cmd.exe 130 PID 5044 wrote to memory of 2396 5044 cmd.exe 130 -
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\b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe"C:\Users\Admin\AppData\Local\Temp\b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3604 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1732
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C:\Users\Admin\AppData\Local\Temp\b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.exe"C:\Users\Admin\AppData\Local\Temp\b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6.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:4472 -
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:3008
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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:916 -
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:4424
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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:3644
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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:1472
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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:816 -
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:2476
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3140
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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:2448
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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:264
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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:4920
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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:4684
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1088 -
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:5044 -
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:2396
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3936 --field-trial-handle=2304,i,6987730730348465820,3913273227385401271,262144 --variations-seed-version /prefetch:81⤵PID:3436
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3644
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD53d086a433708053f9bf9523e1d87a4e8
SHA1b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA2566f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
SHA512931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50104ee414603640a3b8ca8ab2e3f991c
SHA1bdfbedf327c80310df6a5bf0db2a77b822b93e85
SHA2564c0839e9e32f5ef0b854ea4b732209e5af8edda1391ecc8a48ea495da942f4a2
SHA512815a270b774f475cfd5d0b8918cc5c25fcfbdbe593ca97ac3dfe1a01650ed731493cf7b5217cced760fed879db06b5bdb6e95aff63d3ebcfcbc475557dfaf645
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f5148045496517254b648d065ff1b4ba
SHA10481c6cb8d390b54eac8992560993597929c37dc
SHA256760b485f3044ff470500743c08a75dc0d9285601285f668bbf23dee0dccb1f13
SHA5125dc9d1d2a78468f084013e3578b1a40977930feaf24c0b8f4cc59aa71dfb9f9b749f2bebd3256a27d69f28245a5197826f474e4ded6f2e17fb00dc1ed454aee3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59ca8dba332bade25762b0bd49ff74e9c
SHA1c354418ca7d23f4250899da381989dd5ffef06d2
SHA256da5b2a102b807429f3ccc2b82b05a4e35362d7e540c2df13407980e0314d07c5
SHA51210d07b72bd819ce938236e918bb67c4d0598cc7a54dd6dd65a16cd364835a92537d35972499a32cf10a5e18f19e7be30cb053c1a197b5916de7c913814fa07ec
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a71a6c601040b592cb46ce52991a2992
SHA123ff4992810158117d9537a194c02080c0736bfe
SHA256f9446e9cd8e882c325035a4af50bc2ba27afe11abff9905d44f52fc4e9dbba7b
SHA512e6980029e93d4b9291135b46ba883eb905ee7a0d3d07be68bfa15b999b2e1aa67d04131c53caa7cbbf9d299e211427fad20415e548e81fc7640fdf68a3e1c18b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5cc59610de5efa258c6bcf454de839a15
SHA19ced443ceea612ed584a1af3873c5c6bed5b08e3
SHA25600384c58eb07520c1e698f6115d7963cb5415fbd1bd630ea1397ef65d19b2783
SHA5125bad8e579d940b25db77cb22a7fbe272fd7cf324680a719500806cdf74c8d16cf04c4cf30edf4312c9a01db5a0c407fb7eecddbe52eac674c231f6ed54a5fb71
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Filesize
4.1MB
MD5809d48296919decb9e35f37b81569f62
SHA12f0f4c33547ec7f403cbbe7eb58a0fabc28b5ead
SHA256b4b058688f1dcc66932a8b15c5039dd1426521cd02a746850bb9ce9adf55e7a6
SHA51205157c49a30084d497d01820c53f2b252931ea2f5a30a24424274bf94d787e93868132be78b0295006c3a8a3aadd7141b43769dd2aab4f1866a730cb1405af9b
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec