Analysis
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max time kernel
150s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
19-04-2024 07:03
Static task
static1
Behavioral task
behavioral1
Sample
f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe
Resource
win10v2004-20240412-en
General
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Target
f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe
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Size
4.2MB
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MD5
b664491beaacf778b0b056da1656340a
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SHA1
5f1600a4298bf507985e478c734da4fc0b3dd8b7
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SHA256
f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe
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SHA512
f5bfa908ca2b8c632fa776869a7175f0f8075d89823272a51361043857588320c2902f3dd160193d56c5c811cfa37ff7069ff2d622a655876e34d7c9e4823c2e
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SSDEEP
98304:PNkDk7Y2e9fhWY+LbgLFpBVAayCN/CB0J4dlv7S/k29jp/4f:Wk7LeNhW/+FpBVAa19Ce4dlv7wZ4f
Malware Config
Signatures
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Glupteba payload 20 IoCs
Processes:
resource yara_rule behavioral1/memory/552-2-0x0000000005280000-0x0000000005B6B000-memory.dmp family_glupteba behavioral1/memory/552-3-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/552-54-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/4068-57-0x0000000005130000-0x0000000005A1B000-memory.dmp family_glupteba behavioral1/memory/552-58-0x0000000005280000-0x0000000005B6B000-memory.dmp family_glupteba behavioral1/memory/4068-59-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/4068-107-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/4068-192-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/1964-260-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/1964-268-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/1964-272-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/1964-275-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/1964-278-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/1964-281-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/1964-284-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/1964-287-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/1964-290-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/1964-293-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/1964-296-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral1/memory/1964-299-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 4652 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 1964 csrss.exe 3604 injector.exe 3480 windefender.exe 1976 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral1/memory/3480-269-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1976-273-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1976-279-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2288054676-1871194608-3559553667-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2288054676-1871194608-3559553667-1000\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 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 -
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:
f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe -
Drops file in Windows directory 4 IoCs
Processes:
f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.execsrss.exedescription ioc process File opened for modification C:\Windows\rss f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe File created C:\Windows\rss\csrss.exe f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.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 740 sc.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 3436 schtasks.exe 1316 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exepowershell.exepowershell.exepowershell.exewindefender.exepowershell.exepowershell.exepowershell.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time" f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-152 = "Central America Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2182 = "Astrakhan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-672 = "AUS Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2062 = "North Korea Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-3051 = "Qyzylorda Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-392 = "Arab Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-841 = "Argentina Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-141 = "Canada Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2942 = "Sao Tome Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-622 = "Korea Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2572 = "Turks and Caicos Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time" f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed 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\26\52C64B7E\@tzres.dll,-1502 = "Turkey Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time" f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2181 = "Astrakhan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-561 = "SE Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time" f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-742 = "New Zealand Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exef2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exepowershell.exef2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 4932 powershell.exe 4932 powershell.exe 552 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe 552 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe 5060 powershell.exe 5060 powershell.exe 4068 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe 4068 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe 4068 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe 4068 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe 4068 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe 4068 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe 4068 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe 4068 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe 4068 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe 4068 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe 3116 powershell.exe 3116 powershell.exe 4488 powershell.exe 4488 powershell.exe 2008 powershell.exe 2008 powershell.exe 3536 powershell.exe 3536 powershell.exe 448 powershell.exe 448 powershell.exe 3604 injector.exe 3604 injector.exe 3604 injector.exe 3604 injector.exe 3604 injector.exe 3604 injector.exe 1964 csrss.exe 1964 csrss.exe 3604 injector.exe 3604 injector.exe 3604 injector.exe 3604 injector.exe 3604 injector.exe 3604 injector.exe 1964 csrss.exe 1964 csrss.exe 3604 injector.exe 3604 injector.exe 1964 csrss.exe 1964 csrss.exe 3604 injector.exe 3604 injector.exe 3604 injector.exe 3604 injector.exe 3604 injector.exe 3604 injector.exe 3604 injector.exe 3604 injector.exe 3604 injector.exe 3604 injector.exe 3604 injector.exe 3604 injector.exe 3604 injector.exe 3604 injector.exe 3604 injector.exe 3604 injector.exe 3604 injector.exe 3604 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exef2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 4932 powershell.exe Token: SeDebugPrivilege 552 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe Token: SeImpersonatePrivilege 552 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe Token: SeDebugPrivilege 5060 powershell.exe Token: SeDebugPrivilege 3116 powershell.exe Token: SeDebugPrivilege 4488 powershell.exe Token: SeDebugPrivilege 2008 powershell.exe Token: SeDebugPrivilege 3536 powershell.exe Token: SeDebugPrivilege 448 powershell.exe Token: SeSystemEnvironmentPrivilege 1964 csrss.exe Token: SeSecurityPrivilege 740 sc.exe Token: SeSecurityPrivilege 740 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exef2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 552 wrote to memory of 4932 552 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe powershell.exe PID 552 wrote to memory of 4932 552 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe powershell.exe PID 552 wrote to memory of 4932 552 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe powershell.exe PID 4068 wrote to memory of 5060 4068 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe powershell.exe PID 4068 wrote to memory of 5060 4068 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe powershell.exe PID 4068 wrote to memory of 5060 4068 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe powershell.exe PID 4068 wrote to memory of 4408 4068 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe cmd.exe PID 4068 wrote to memory of 4408 4068 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe cmd.exe PID 4408 wrote to memory of 4652 4408 cmd.exe netsh.exe PID 4408 wrote to memory of 4652 4408 cmd.exe netsh.exe PID 4068 wrote to memory of 3116 4068 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe powershell.exe PID 4068 wrote to memory of 3116 4068 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe powershell.exe PID 4068 wrote to memory of 3116 4068 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe powershell.exe PID 4068 wrote to memory of 4488 4068 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe powershell.exe PID 4068 wrote to memory of 4488 4068 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe powershell.exe PID 4068 wrote to memory of 4488 4068 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe powershell.exe PID 4068 wrote to memory of 1964 4068 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe csrss.exe PID 4068 wrote to memory of 1964 4068 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe csrss.exe PID 4068 wrote to memory of 1964 4068 f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe csrss.exe PID 1964 wrote to memory of 2008 1964 csrss.exe powershell.exe PID 1964 wrote to memory of 2008 1964 csrss.exe powershell.exe PID 1964 wrote to memory of 2008 1964 csrss.exe powershell.exe PID 1964 wrote to memory of 3536 1964 csrss.exe powershell.exe PID 1964 wrote to memory of 3536 1964 csrss.exe powershell.exe PID 1964 wrote to memory of 3536 1964 csrss.exe powershell.exe PID 1964 wrote to memory of 448 1964 csrss.exe powershell.exe PID 1964 wrote to memory of 448 1964 csrss.exe powershell.exe PID 1964 wrote to memory of 448 1964 csrss.exe powershell.exe PID 1964 wrote to memory of 3604 1964 csrss.exe injector.exe PID 1964 wrote to memory of 3604 1964 csrss.exe injector.exe PID 3480 wrote to memory of 2104 3480 windefender.exe cmd.exe PID 3480 wrote to memory of 2104 3480 windefender.exe cmd.exe PID 3480 wrote to memory of 2104 3480 windefender.exe cmd.exe PID 2104 wrote to memory of 740 2104 cmd.exe sc.exe PID 2104 wrote to memory of 740 2104 cmd.exe sc.exe PID 2104 wrote to memory of 740 2104 cmd.exe sc.exe -
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\f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe"C:\Users\Admin\AppData\Local\Temp\f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:552 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4932
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C:\Users\Admin\AppData\Local\Temp\f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.exe"C:\Users\Admin\AppData\Local\Temp\f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe.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:4068 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5060
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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:4408 -
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:4652
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3116
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4488
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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:1964 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2008
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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:3436
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4296
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3536
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:448
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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:3604
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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:1316
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3480 -
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:2104 -
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:740
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1976
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
MD5b82c83f9ec89fe929cb41395e138040a
SHA17325d6a87350ec4ce04eec96ddb11ef85b336ceb
SHA256a0125148d89560220e1bdf55116033281c1c6e02b1aca74fa44fa5939aa51893
SHA51257251cabe950be6435ca5d0bab027f1ac85a71463cfc8a9d6eec521cbe2950d543ad8432e87a560e8c1c278137b537e910cd41eaa7cddd1c99507427bf0c3d7c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5703b2b0eeb653cb0d61e2c1251fedf66
SHA14c3ffe4860dfa9a5250e80ed50b98f84c7640737
SHA2568aaf93f3f2f22ee01b1412d460151a49f1325e180cd2dedf4c137c3a0db33303
SHA512b2ebe1492c699d9215ace2ef207f0ade605098aa4c1ace8b1c6484778fcd18ccad03a48eefa4c7821e5b52b1636bbfaa4f5f5acee3933558c743d2640f918c94
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58769c1e934d12908bc8d4a41dcd5e3f4
SHA1b0ab83acdf226bbacb4e43644c0f82b7082305e9
SHA2561e3768e2db31a6593f3357f35095c18fee48769020bbf36c3bd172ddc6edf4a3
SHA5126d68a99ae3ba315b2a2c5750574a151f67da9ebdcbb9ca7eea2fc6c15c4718f422a796c21fce5e2bc482d421273bf16c8699aac17dd298022f5d138b83626397
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b5a826dc82fcbbfd11a1c3d35d2ce468
SHA10a0f7fd39489c6812c49f4aa9e95ca586c4ceef0
SHA2569840da5dce24bae43f649c1e92c04c4e0e9756402e11267f6e74c89c7b2ea57e
SHA512799e21ec084b07dba16c640dcee3bbc3bfb6daedb59e777d1ef60675da1d5a3faea285241d1da375a08be9db4fe6466192a273229e31f4470549e540ae6bce9d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f8e32a4be8f2bc8372deed2bda412a41
SHA1be08d553e43354ef113e6755c0f79f5f117a2f4b
SHA256602679e8cdcb35445d897ab2e12f3481918af9ddbb665729b4567aacfce26615
SHA51236378880aaab35505831d1ce6604728d5e6acc073bc365b9496479414b32e48a6face4dd71c541347e7b69a73ecc078028ad178924c4cb13874bff362e2d9bf9
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Filesize
4.2MB
MD5b664491beaacf778b0b056da1656340a
SHA15f1600a4298bf507985e478c734da4fc0b3dd8b7
SHA256f2bdc0b75ff00d92ed44ba612e1d2d931b05fda7c4e845de30af478af7dd99fe
SHA512f5bfa908ca2b8c632fa776869a7175f0f8075d89823272a51361043857588320c2902f3dd160193d56c5c811cfa37ff7069ff2d622a655876e34d7c9e4823c2e
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec