Analysis
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max time kernel
150s -
max time network
156s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-04-2024 07:05
Static task
static1
Behavioral task
behavioral1
Sample
f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe
Resource
win10v2004-20240412-en
General
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Target
f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe
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Size
4.2MB
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MD5
b5960c449d2886383259deae0aabfb1c
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SHA1
e31226976fe1d56242b2fc8a3f54aa47e2a6ffef
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SHA256
f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a
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SHA512
3fce216adbdb322bc0ebdf7a56bde6cb6350e4340fd1bcbbd4d109283cc65b89278e13c8fce6775a76cc5c2c581cb3e941745a186bc58a56acd8c48055f79401
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SSDEEP
98304:HNkDk7Y2e9fhWY+LbgLFpBVAayCN/CB0J4dlv7S/k29jp/4L:Ok7LeNhW/+FpBVAa19Ce4dlv7wZ4L
Malware Config
Signatures
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Glupteba payload 20 IoCs
Processes:
resource yara_rule behavioral2/memory/4536-2-0x0000000005360000-0x0000000005C4B000-memory.dmp family_glupteba behavioral2/memory/4536-3-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/4536-44-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/1572-54-0x0000000005240000-0x0000000005B2B000-memory.dmp family_glupteba behavioral2/memory/1572-55-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/4536-67-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/1572-83-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/1572-114-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/1572-118-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/1572-143-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/1572-151-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/4688-180-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/4688-238-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/4688-247-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/4688-257-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/4688-260-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/4688-263-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/4688-266-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/4688-269-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/4688-272-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 3248 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 4688 csrss.exe 3764 injector.exe 3228 windefender.exe 4136 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/3228-255-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4136-258-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4136-264-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2516240262-2296879883-3965305654-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe Set value (str) \REGISTRY\USER\S-1-5-21-2516240262-2296879883-3965305654-1000\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:
f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe -
Drops file in Windows directory 4 IoCs
Processes:
f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.execsrss.exedescription ioc process File opened for modification C:\Windows\rss f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe File created C:\Windows\rss\csrss.exe f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.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 1488 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 948 schtasks.exe 2280 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
windefender.exef74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-182 = "Mountain Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-792 = "SA Western Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-201 = "US Mountain Daylight 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)" f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1971 = "Belarus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-911 = "Mauritius Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-121 = "SA Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time" f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-448 = "Azerbaijan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time" f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-432 = "Iran Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2342 = "Haiti Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs 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\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-381 = "South Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-692 = "Tasmania Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2752 = "Tomsk Standard Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-352 = "FLE Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-602 = "Taipei Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.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\26\52C64B7E\@tzres.dll,-511 = "Central Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-891 = "Morocco Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-652 = "AUS Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-72 = "Newfoundland Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-71 = "Newfoundland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-161 = "Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-42 = "E. South America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exef74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exepowershell.exef74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 4724 powershell.exe 4724 powershell.exe 4536 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe 4536 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe 1436 powershell.exe 1436 powershell.exe 1572 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe 1572 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe 1572 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe 1572 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe 1572 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe 1572 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe 1572 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe 1572 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe 1572 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe 1572 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe 4180 powershell.exe 4180 powershell.exe 660 powershell.exe 660 powershell.exe 1584 powershell.exe 1584 powershell.exe 4060 powershell.exe 4060 powershell.exe 1552 powershell.exe 1552 powershell.exe 3764 injector.exe 3764 injector.exe 3764 injector.exe 3764 injector.exe 3764 injector.exe 3764 injector.exe 3764 injector.exe 3764 injector.exe 4688 csrss.exe 4688 csrss.exe 3764 injector.exe 3764 injector.exe 3764 injector.exe 3764 injector.exe 3764 injector.exe 3764 injector.exe 4688 csrss.exe 4688 csrss.exe 3764 injector.exe 3764 injector.exe 3764 injector.exe 3764 injector.exe 3764 injector.exe 3764 injector.exe 3764 injector.exe 3764 injector.exe 4688 csrss.exe 4688 csrss.exe 3764 injector.exe 3764 injector.exe 3764 injector.exe 3764 injector.exe 3764 injector.exe 3764 injector.exe 3764 injector.exe 3764 injector.exe 3764 injector.exe 3764 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exef74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 4724 powershell.exe Token: SeDebugPrivilege 4536 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe Token: SeImpersonatePrivilege 4536 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe Token: SeDebugPrivilege 1436 powershell.exe Token: SeDebugPrivilege 4180 powershell.exe Token: SeDebugPrivilege 660 powershell.exe Token: SeDebugPrivilege 1584 powershell.exe Token: SeDebugPrivilege 4060 powershell.exe Token: SeDebugPrivilege 1552 powershell.exe Token: SeSystemEnvironmentPrivilege 4688 csrss.exe Token: SeSecurityPrivilege 1488 sc.exe Token: SeSecurityPrivilege 1488 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exef74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 4536 wrote to memory of 4724 4536 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe powershell.exe PID 4536 wrote to memory of 4724 4536 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe powershell.exe PID 4536 wrote to memory of 4724 4536 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe powershell.exe PID 1572 wrote to memory of 1436 1572 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe powershell.exe PID 1572 wrote to memory of 1436 1572 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe powershell.exe PID 1572 wrote to memory of 1436 1572 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe powershell.exe PID 1572 wrote to memory of 1164 1572 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe cmd.exe PID 1572 wrote to memory of 1164 1572 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe cmd.exe PID 1164 wrote to memory of 3248 1164 cmd.exe netsh.exe PID 1164 wrote to memory of 3248 1164 cmd.exe netsh.exe PID 1572 wrote to memory of 4180 1572 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe powershell.exe PID 1572 wrote to memory of 4180 1572 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe powershell.exe PID 1572 wrote to memory of 4180 1572 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe powershell.exe PID 1572 wrote to memory of 660 1572 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe powershell.exe PID 1572 wrote to memory of 660 1572 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe powershell.exe PID 1572 wrote to memory of 660 1572 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe powershell.exe PID 1572 wrote to memory of 4688 1572 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe csrss.exe PID 1572 wrote to memory of 4688 1572 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe csrss.exe PID 1572 wrote to memory of 4688 1572 f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe csrss.exe PID 4688 wrote to memory of 1584 4688 csrss.exe powershell.exe PID 4688 wrote to memory of 1584 4688 csrss.exe powershell.exe PID 4688 wrote to memory of 1584 4688 csrss.exe powershell.exe PID 4688 wrote to memory of 4060 4688 csrss.exe powershell.exe PID 4688 wrote to memory of 4060 4688 csrss.exe powershell.exe PID 4688 wrote to memory of 4060 4688 csrss.exe powershell.exe PID 4688 wrote to memory of 1552 4688 csrss.exe powershell.exe PID 4688 wrote to memory of 1552 4688 csrss.exe powershell.exe PID 4688 wrote to memory of 1552 4688 csrss.exe powershell.exe PID 4688 wrote to memory of 3764 4688 csrss.exe injector.exe PID 4688 wrote to memory of 3764 4688 csrss.exe injector.exe PID 3228 wrote to memory of 1908 3228 windefender.exe cmd.exe PID 3228 wrote to memory of 1908 3228 windefender.exe cmd.exe PID 3228 wrote to memory of 1908 3228 windefender.exe cmd.exe PID 1908 wrote to memory of 1488 1908 cmd.exe sc.exe PID 1908 wrote to memory of 1488 1908 cmd.exe sc.exe PID 1908 wrote to memory of 1488 1908 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\f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe"C:\Users\Admin\AppData\Local\Temp\f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4536 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4724 -
C:\Users\Admin\AppData\Local\Temp\f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.exe"C:\Users\Admin\AppData\Local\Temp\f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a.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:1572 -
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:1436 -
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:1164 -
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:3248 -
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:4180 -
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:660 -
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:4688 -
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:1584 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:948 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4292
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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:4060 -
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:1552 -
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:3764 -
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:2280 -
C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3228 -
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:1908 -
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:1488
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4136
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
MD58c382fea85a6d0bdadcf881c5465a087
SHA108595d7026b13c003590dbe4d5de1d0a2b76e960
SHA2565b930e0fc5a61ac68b4f72357a08b2ea1568047fdee033aabaa0c9d97b6341c3
SHA512d4b5007fdeb93d6a7d045933fd0e2ceab8f0c3b57a9d6f01ad69ab8bb521ce06f043713c287ca186f3fd3e05a24d45254cfcbd63ae7795cfde5dcef0c8ab4700
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5adefd2861812448f553e8c9044d4cfd6
SHA1f1a913f454bd7e2897dc8d3ab563c063a0feac62
SHA256b5c94396ea9260fe505e9f716f02604bc0f0696dab3eaa42e4f0e51b01913492
SHA5124d892417c95608e113cfeba22fbc8b7077e51ae8f6906169283b33df34d202f8abd7c10e2b820b6ddef8c93df049463f0eb9926da35fa5e0b00fc8cf8703b457
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55b4e012fe1fba69d4d9b5aa49dc6ce41
SHA14909057eed7ff52711e9f6f2f70a8fd576336d1c
SHA256dd719250bf6386430e108af555548fcba8d28cfa436c602bb67f76cdef0a5dea
SHA512d46446defff0b2f4c4f53b1e42ddffc20570bd420793695c3c2536bf3e4acbc2055126ed4da469a7a4f73319309503d4697c23db9c38017920e6e0233c4501a1
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52f079abbe38770f6b3e22af036cca828
SHA1974e54aa4af5676459f42b4d5b4f72d04c8925dc
SHA25680940b11050cf0a9b71a4da182dbaf0946c10a51f85d42ed875098239b013172
SHA512bd2fd18acd80a8330b4a89f25a1f31e4085a3c335dc6af4459fdc582465cc0b23ea79dc4333ed87ae1d2b6bf4b7333214b136feb9ebe5d42324d7e01918af93e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f24a9a13c87918d65f2b0ba433bde18f
SHA1a68185920812118d834f0e1f3665051c68046dec
SHA256f86984072ed880f69bc47e206fbc88244d3d92352bdae18d7ca0da4f26c68704
SHA5128596c8343565fda2d3e6e630b7d6fa399d678508669bb54d841228788fe1cacab316639075ea729d7f6963b5bce5151c70906de980125d293f5e4f4f2b0e9d43
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Filesize
4.2MB
MD5b5960c449d2886383259deae0aabfb1c
SHA1e31226976fe1d56242b2fc8a3f54aa47e2a6ffef
SHA256f74e33b37b3805de31a8aa5a0c939b28298662a615c1cd17c716392c765a2c3a
SHA5123fce216adbdb322bc0ebdf7a56bde6cb6350e4340fd1bcbbd4d109283cc65b89278e13c8fce6775a76cc5c2c581cb3e941745a186bc58a56acd8c48055f79401
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec