Analysis
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max time kernel
299s -
max time network
295s -
platform
windows10-1703_x64 -
resource
win10-20240221-en -
resource tags
arch:x64arch:x86image:win10-20240221-enlocale:en-usos:windows10-1703-x64system -
submitted
28-03-2024 22:22
Static task
static1
Behavioral task
behavioral1
Sample
20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe
Resource
win7-20240221-en
General
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Target
20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe
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Size
4.2MB
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MD5
ff1a34dc4633f8363b0421d24ecb13e1
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SHA1
86f131c3358df3b0e9cbeac22849e8372b8f3c05
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SHA256
20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085
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SHA512
c6ed9dc23244b3baeb30c3d6f659058eee60dac9496b6477ebc89dfbec837ed6c1d9221488b1335997ad7d4fccd99f6ce61a88661e6d63e49f5980c0b2895ae9
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SSDEEP
98304:Jv0T1XT8Tbl9EdJLPOp4i7E1Yl4G/M6pSEC/z40cZX:doBQTbl9ETLOp1p4G/lSEMz4p
Malware Config
Signatures
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Glupteba payload 37 IoCs
resource yara_rule behavioral2/memory/3076-2-0x0000000002FB0000-0x000000000389B000-memory.dmp family_glupteba behavioral2/memory/3076-3-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/3076-299-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/3076-301-0x0000000002FB0000-0x000000000389B000-memory.dmp family_glupteba behavioral2/memory/4136-303-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/4136-800-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/4136-1042-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/5112-1046-0x0000000003600000-0x0000000003EEB000-memory.dmp family_glupteba behavioral2/memory/5112-1047-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/5112-1787-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/5112-1796-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/5112-1799-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/5112-1801-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/5112-1803-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/5112-1805-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/5112-1807-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/5112-1809-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/5112-1811-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/5112-1813-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/5112-1815-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/5112-1817-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/5112-1819-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/5112-1821-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/5112-1823-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/5112-1825-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/5112-1827-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/5112-1829-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/5112-1831-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/5112-1833-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/5112-1835-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/5112-1837-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/5112-1839-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/5112-1841-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/5112-1843-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/5112-1845-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/5112-1847-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba behavioral2/memory/5112-1849-0x0000000000400000-0x0000000000EDA000-memory.dmp family_glupteba -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe = "0" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2328 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 5112 csrss.exe 3996 injector.exe 3440 windefender.exe 2504 windefender.exe -
resource yara_rule behavioral2/files/0x000700000001ac0f-1790.dat upx behavioral2/memory/3440-1795-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2504-1802-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2504-1808-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe = "0" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2852630833-2010812756-3750823755-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Set value (str) \REGISTRY\USER\S-1-5-21-2852630833-2010812756-3750823755-1000\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.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe File created C:\Windows\rss\csrss.exe 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.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.
pid Process 1904 sc.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3760 schtasks.exe 4792 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 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\1a\52C64B7E\@tzres.dll,-252 = "Dateline Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-431 = "Iran Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-792 = "SA Western Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-2451 = "Saint Pierre Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-1661 = "Bahia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-42 = "E. South America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\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\1a\52C64B7E\@tzres.dll,-2392 = "Aleutian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-2491 = "Aus Central W. Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-2452 = "Saint Pierre Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-1842 = "Russia TZ 4 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-385 = "Namibia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-381 = "South Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-532 = "Sri Lanka Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-341 = "Egypt Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-242 = "Samoa Standard Time" windefender.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-391 = "Arab Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\@tzres.dll,-2492 = "Aus Central W. Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 596 powershell.exe 596 powershell.exe 596 powershell.exe 3076 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe 3076 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe 1688 powershell.exe 1688 powershell.exe 1688 powershell.exe 4136 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe 4136 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe 4136 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe 4136 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe 4136 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe 4136 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe 4136 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe 4136 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe 4136 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe 4136 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe 600 powershell.exe 600 powershell.exe 600 powershell.exe 4732 powershell.exe 4732 powershell.exe 4732 powershell.exe 2288 powershell.exe 2288 powershell.exe 2288 powershell.exe 3504 powershell.exe 3504 powershell.exe 3504 powershell.exe 2292 powershell.exe 2292 powershell.exe 2292 powershell.exe 3996 injector.exe 3996 injector.exe 3996 injector.exe 3996 injector.exe 3996 injector.exe 3996 injector.exe 5112 csrss.exe 5112 csrss.exe 3996 injector.exe 3996 injector.exe 3996 injector.exe 3996 injector.exe 3996 injector.exe 3996 injector.exe 5112 csrss.exe 5112 csrss.exe 3996 injector.exe 3996 injector.exe 3996 injector.exe 3996 injector.exe 3996 injector.exe 3996 injector.exe 5112 csrss.exe 5112 csrss.exe 3996 injector.exe 3996 injector.exe 3996 injector.exe 3996 injector.exe 3996 injector.exe 3996 injector.exe 3996 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 596 powershell.exe Token: SeDebugPrivilege 3076 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Token: SeImpersonatePrivilege 3076 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe Token: SeDebugPrivilege 1688 powershell.exe Token: SeDebugPrivilege 600 powershell.exe Token: SeDebugPrivilege 4732 powershell.exe Token: SeDebugPrivilege 2288 powershell.exe Token: SeDebugPrivilege 3504 powershell.exe Token: SeDebugPrivilege 2292 powershell.exe Token: SeSystemEnvironmentPrivilege 5112 csrss.exe Token: SeSecurityPrivilege 1904 sc.exe Token: SeSecurityPrivilege 1904 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3076 wrote to memory of 596 3076 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe 75 PID 3076 wrote to memory of 596 3076 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe 75 PID 3076 wrote to memory of 596 3076 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe 75 PID 4136 wrote to memory of 1688 4136 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe 80 PID 4136 wrote to memory of 1688 4136 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe 80 PID 4136 wrote to memory of 1688 4136 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe 80 PID 4136 wrote to memory of 4728 4136 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe 82 PID 4136 wrote to memory of 4728 4136 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe 82 PID 4728 wrote to memory of 2328 4728 cmd.exe 84 PID 4728 wrote to memory of 2328 4728 cmd.exe 84 PID 4136 wrote to memory of 600 4136 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe 103 PID 4136 wrote to memory of 600 4136 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe 103 PID 4136 wrote to memory of 600 4136 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe 103 PID 4136 wrote to memory of 4732 4136 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe 87 PID 4136 wrote to memory of 4732 4136 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe 87 PID 4136 wrote to memory of 4732 4136 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe 87 PID 4136 wrote to memory of 5112 4136 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe 89 PID 4136 wrote to memory of 5112 4136 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe 89 PID 4136 wrote to memory of 5112 4136 20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe 89 PID 5112 wrote to memory of 2288 5112 csrss.exe 90 PID 5112 wrote to memory of 2288 5112 csrss.exe 90 PID 5112 wrote to memory of 2288 5112 csrss.exe 90 PID 5112 wrote to memory of 3504 5112 csrss.exe 97 PID 5112 wrote to memory of 3504 5112 csrss.exe 97 PID 5112 wrote to memory of 3504 5112 csrss.exe 97 PID 5112 wrote to memory of 2292 5112 csrss.exe 99 PID 5112 wrote to memory of 2292 5112 csrss.exe 99 PID 5112 wrote to memory of 2292 5112 csrss.exe 99 PID 5112 wrote to memory of 3996 5112 csrss.exe 101 PID 5112 wrote to memory of 3996 5112 csrss.exe 101 PID 3440 wrote to memory of 1708 3440 windefender.exe 108 PID 3440 wrote to memory of 1708 3440 windefender.exe 108 PID 3440 wrote to memory of 1708 3440 windefender.exe 108 PID 1708 wrote to memory of 1904 1708 cmd.exe 109 PID 1708 wrote to memory of 1904 1708 cmd.exe 109 PID 1708 wrote to memory of 1904 1708 cmd.exe 109 -
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\20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe"C:\Users\Admin\AppData\Local\Temp\20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3076 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:596
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C:\Users\Admin\AppData\Local\Temp\20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe"C:\Users\Admin\AppData\Local\Temp\20212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085.exe"2⤵
- Windows security bypass
- Windows security modification
- 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:4136 -
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:1688
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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:4728 -
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:2328
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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:600
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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:4732
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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:5112 -
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:2288
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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:3760
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1940
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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:3504
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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:2292
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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:3996
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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:4792
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3440 -
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:1708 -
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:1904
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C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{E10F6C3A-F1AE-4ADC-AA9D-2FE65525666E}1⤵PID:600
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2504
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
1B
MD5c4ca4238a0b923820dcc509a6f75849b
SHA1356a192b7913b04c54574d18c28d46e6395428ab
SHA2566b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
SHA5124dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a
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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
MD51c19c16e21c97ed42d5beabc93391fc5
SHA18ad83f8e0b3acf8dfbbf87931e41f0d664c4df68
SHA2561bcd97396c83babfe6c5068ba590d7a3f8b70e72955a9d1e4070648e404cbf05
SHA5127d18776d8f649b3d29c182ff03efc6cea8b527542ee55304980f24577aae8b64e37044407776e220984346c3998ace5f8853afa58c8b38407482a728e9495e0c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD58a769353c4a5bcd3f1148e5f430c75e3
SHA17c35100780b9f8166cf1dd014bfe5b76c7e83f3c
SHA256d0961cdc9b8e934014df4d45ee45e7bf11f043450d2d1fb29571bbb6e9e96296
SHA512375b247033a20b2d92ef52e2030fdda3b211e33af2241abd80b7507f69faf600f99261cff1c64d36c98a218b4f86f679cbc3b7885461be3d314c4b184db7faa3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD56f946c7bc2a4b8439d4f9309c00bb1ac
SHA1063c7fcf6fe5425e51542907725600daf5f79656
SHA25638eff1d92474d7d8e0b9b56c02b13ad463c1a3c221e8473bb792561a1b9efb4e
SHA512817287d034c82c7899b4b1063cd9bfe3e2c41f93e070f21fa6503f58aaf48646e063362a84b170c0826bc236e63ccdf98b17ca453f9aacae010b1e11c3a0af9b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD5c502eb662958b61f4f6b53969558463b
SHA1298e6137a6987998eaef1872a1ebe592ff3b4b58
SHA256626daccd61ca288a39c89a5c5371d5380e59d5b89db48d0f2015f4de4d161c2e
SHA512b2c40862883c662cf5956d0474138d6669dbaa7ca7918e15810c7af88c1c8c91365094987816cd5f5636bfe1cd0fef1b67287a1e7509be618286422281664a54
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD53516ea0eb4ae4e627e6540730c03d8de
SHA1b6df264e6d83bba97daa66ff4b68940510181bcb
SHA25645b0335b5f41ecbb99dc272ab4fc5dddddb2307632b727906a55229f749a0040
SHA512917d22408862bc810cab3b3dd8b93c0096551e688d367db37dfa638d37634de70055fa557c1d0d04f2ffbc3c23d68cb936011d7b7b23e0b80fe3895903255da4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize18KB
MD554ce3df0d0bc76e06e6409613a06fa2f
SHA113846a46f3d7b1aa59250f2d6dc2860966f80456
SHA256a84f90f65719db5ed9a3befed853cc4f4e023b2cad75f56342b836566bb2af8c
SHA5129260f9521173db344c21a8cb2420fea5693de83fc86da63759f3a3ce786e3eea26ba01637a2489e9b536387eebc343e5666171d8c2945efb778beeb42ce5c6a6
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Filesize
4.2MB
MD5ff1a34dc4633f8363b0421d24ecb13e1
SHA186f131c3358df3b0e9cbeac22849e8372b8f3c05
SHA25620212369495ea37faaa0fd8cdc03cd56b6df8db3124eda49d158a0e6c7109085
SHA512c6ed9dc23244b3baeb30c3d6f659058eee60dac9496b6477ebc89dfbec837ed6c1d9221488b1335997ad7d4fccd99f6ce61a88661e6d63e49f5980c0b2895ae9
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec