Analysis
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max time kernel
150s -
max time network
149s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
24/04/2024, 15:12
Static task
static1
Behavioral task
behavioral1
Sample
40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe
Resource
win10v2004-20240412-en
General
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Target
40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe
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Size
4.1MB
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MD5
defc7106dae38a25427d20aac161925c
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SHA1
05d200524334148974a5eb45b330730d862194c2
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SHA256
40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08
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SHA512
656823c2ff1fd7e6044f89f1bb936c3e4cd71711581bf00f380cc3eee56265561b7b606c612562e22cc20670eb405aef6303e5177c50316a6418415e71d0e4c3
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SSDEEP
98304:idZ5pSFSwmBb0dJqEbFwh6cWEFEplywx2cPNzkaSa06y0oNmr:Ax7cCEbSlBcc6ylIr
Malware Config
Signatures
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Glupteba payload 17 IoCs
resource yara_rule behavioral2/memory/236-2-0x0000000006700000-0x0000000006FEB000-memory.dmp family_glupteba behavioral2/memory/236-49-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba behavioral2/memory/236-52-0x0000000006700000-0x0000000006FEB000-memory.dmp family_glupteba behavioral2/memory/2936-141-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba behavioral2/memory/2392-210-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba behavioral2/memory/2392-219-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba behavioral2/memory/2392-221-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba behavioral2/memory/2392-223-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba behavioral2/memory/2392-225-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba behavioral2/memory/2392-227-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba behavioral2/memory/2392-229-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba behavioral2/memory/2392-231-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba behavioral2/memory/2392-233-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba behavioral2/memory/2392-235-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba behavioral2/memory/2392-237-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba behavioral2/memory/2392-239-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba behavioral2/memory/2392-241-0x0000000000400000-0x0000000004416000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4292 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2392 csrss.exe 4596 injector.exe 2848 windefender.exe 5100 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9f1-213.dat upx behavioral2/memory/2848-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5100-220-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5100-224-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5100-230-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-801765966-3955847401-2235691403-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe Set value (str) \REGISTRY\USER\S-1-5-21-801765966-3955847401-2235691403-1000\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 6 IoCs
description ioc Process 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 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 976 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 3772 schtasks.exe 1960 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time" 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time" 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-961 = "Paraguay Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs 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\@tzres.dll,-282 = "Central Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2432 = "Cuba Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-771 = "Montevideo Daylight Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2001 = "Cabo Verde Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-681 = "E. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time" 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time" 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2411 = "Marquesas Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-912 = "Mauritius Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-541 = "Myanmar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-241 = "Samoa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2162 = "Altai Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-722 = "Central Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time" 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2772 = "Omsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-384 = "Namibia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.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\@tzres.dll,-682 = "E. Australia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-341 = "Egypt Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-832 = "SA Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.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\26\52C64B7E\@tzres.dll,-334 = "Jordan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-364 = "Middle East Daylight Time" windefender.exe 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\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time" 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-431 = "Iran Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1472 = "Magadan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2871 = "Magallanes Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2791 = "Novosibirsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4252 powershell.exe 4252 powershell.exe 236 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe 236 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe 2324 powershell.exe 2324 powershell.exe 2936 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe 2936 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe 2936 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe 2936 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe 2936 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe 2936 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe 2936 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe 2936 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe 2936 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe 2936 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe 1900 powershell.exe 1900 powershell.exe 3516 powershell.exe 3516 powershell.exe 4560 powershell.exe 4560 powershell.exe 3040 powershell.exe 3040 powershell.exe 4596 injector.exe 4596 injector.exe 4596 injector.exe 4596 injector.exe 4596 injector.exe 4596 injector.exe 2392 csrss.exe 2392 csrss.exe 4596 injector.exe 4596 injector.exe 4596 injector.exe 4596 injector.exe 4596 injector.exe 4596 injector.exe 2392 csrss.exe 2392 csrss.exe 4596 injector.exe 4596 injector.exe 4596 injector.exe 4596 injector.exe 2392 csrss.exe 2392 csrss.exe 4596 injector.exe 4596 injector.exe 4596 injector.exe 4596 injector.exe 4596 injector.exe 4596 injector.exe 4596 injector.exe 4596 injector.exe 4596 injector.exe 4596 injector.exe 4596 injector.exe 4596 injector.exe 4596 injector.exe 4596 injector.exe 4596 injector.exe 4596 injector.exe 4596 injector.exe 4596 injector.exe -
Suspicious use of AdjustPrivilegeToken 11 IoCs
description pid Process Token: SeDebugPrivilege 4252 powershell.exe Token: SeDebugPrivilege 236 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe Token: SeImpersonatePrivilege 236 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe Token: SeDebugPrivilege 2324 powershell.exe Token: SeDebugPrivilege 1900 powershell.exe Token: SeDebugPrivilege 3516 powershell.exe Token: SeDebugPrivilege 4560 powershell.exe Token: SeDebugPrivilege 3040 powershell.exe Token: SeSystemEnvironmentPrivilege 2392 csrss.exe Token: SeSecurityPrivilege 976 sc.exe Token: SeSecurityPrivilege 976 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 236 wrote to memory of 4252 236 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe 80 PID 236 wrote to memory of 4252 236 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe 80 PID 236 wrote to memory of 4252 236 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe 80 PID 2936 wrote to memory of 2324 2936 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe 86 PID 2936 wrote to memory of 2324 2936 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe 86 PID 2936 wrote to memory of 2324 2936 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe 86 PID 2936 wrote to memory of 2004 2936 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe 88 PID 2936 wrote to memory of 2004 2936 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe 88 PID 2004 wrote to memory of 4292 2004 cmd.exe 90 PID 2004 wrote to memory of 4292 2004 cmd.exe 90 PID 2936 wrote to memory of 1900 2936 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe 91 PID 2936 wrote to memory of 1900 2936 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe 91 PID 2936 wrote to memory of 1900 2936 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe 91 PID 2936 wrote to memory of 3516 2936 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe 93 PID 2936 wrote to memory of 3516 2936 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe 93 PID 2936 wrote to memory of 3516 2936 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe 93 PID 2936 wrote to memory of 2392 2936 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe 95 PID 2936 wrote to memory of 2392 2936 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe 95 PID 2936 wrote to memory of 2392 2936 40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe 95 PID 2392 wrote to memory of 2044 2392 csrss.exe 96 PID 2392 wrote to memory of 2044 2392 csrss.exe 96 PID 2392 wrote to memory of 2044 2392 csrss.exe 96 PID 2392 wrote to memory of 4560 2392 csrss.exe 102 PID 2392 wrote to memory of 4560 2392 csrss.exe 102 PID 2392 wrote to memory of 4560 2392 csrss.exe 102 PID 2392 wrote to memory of 3040 2392 csrss.exe 104 PID 2392 wrote to memory of 3040 2392 csrss.exe 104 PID 2392 wrote to memory of 3040 2392 csrss.exe 104 PID 2392 wrote to memory of 4596 2392 csrss.exe 106 PID 2392 wrote to memory of 4596 2392 csrss.exe 106 PID 2848 wrote to memory of 2860 2848 windefender.exe 112 PID 2848 wrote to memory of 2860 2848 windefender.exe 112 PID 2848 wrote to memory of 2860 2848 windefender.exe 112 PID 2860 wrote to memory of 976 2860 cmd.exe 113 PID 2860 wrote to memory of 976 2860 cmd.exe 113 PID 2860 wrote to memory of 976 2860 cmd.exe 113 -
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\40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe"C:\Users\Admin\AppData\Local\Temp\40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:236 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4252
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C:\Users\Admin\AppData\Local\Temp\40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.exe"C:\Users\Admin\AppData\Local\Temp\40ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08.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:2936 -
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:2324
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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:2004 -
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:4292
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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:1900
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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:3516
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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:2392 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Modifies data under HKEY_USERS
PID:2044
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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:3772
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1240
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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:4560
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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:3040
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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:4596
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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:1960
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2848 -
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:2860 -
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:976
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:5100
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
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fd2063d20aa1888c726d1b8cc46cb931
SHA1ac24a6f7af26ddb94e474477e15331e67f7176d6
SHA2565ce476dd1149fcce17c83a3cf3ca7b159c63ef9be52e6a17e4f1a609b72b03e7
SHA5127975999dac3e8a45c0da5115344f94f053670c3cabef6767dfc95e294414bfbf3260579aa3c4446193c6ca6a04a0f33ab0edc50dbd7ffdf8d147758ed76b3d0a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b7d3937366e3050e2f0b551bc1502d3d
SHA1815be16acac3d5b616f54f5ebf58b6c196ca1f88
SHA256d3be8f5bf2d0a69fb015b8775b3bb2dc0e460f07bef25945a6ec8e41b9250059
SHA512d76c47df4db421b9b40fff921c1865c1db56ff93163596ce2bbe69d5e43e21687e55376c66500da1074c5dc9202cce159c52e35b9638724698c310e3eb9577f9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f7e7d7d23eaff306a6fb52f4d72a3f62
SHA17e2152de5f291f07be0d62418bc7ec5d0b3f83a0
SHA256ef28f969751faf506c7fc1f9482fb93626f5886f76afc3d8854b56812b5d037e
SHA51206ca64b64772a3d3c0adaff15df79b7df5ad87a6c7f04257c92f1732a4145f3844dfbcade3b85182147face9e209207536a7fb71e3b581855dd4d04fe2ab2aa5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d3f9eabbe2f92c02867c0901b80e240f
SHA10bb1ce3e30e10ae0e50081803dbb42fb5d4f4690
SHA2566d0d5b188af04b25702960599efc6d0f9a6eb4b90fb393f94a2197d22a0902c3
SHA51223d1739e0ab23196b3f23eb60bbcfd3bd639a1d95428882a3672b5e1d4f8a975c7967298412a4cd531f41cd2d36c3a21c4008672fbbd011d0e034d56433ac6f3
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Filesize
4.1MB
MD5defc7106dae38a25427d20aac161925c
SHA105d200524334148974a5eb45b330730d862194c2
SHA25640ef89749d89f68e101ae22b5b595f4d9a431c31d7bbd8a59993b68eaa278f08
SHA512656823c2ff1fd7e6044f89f1bb936c3e4cd71711581bf00f380cc3eee56265561b7b606c612562e22cc20670eb405aef6303e5177c50316a6418415e71d0e4c3
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec