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Analysis
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max time kernel
149s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
19/05/2024, 05:35
Static task
static1
Behavioral task
behavioral1
Sample
f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe
Resource
win10v2004-20240426-en
General
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Target
f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe
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Size
4.1MB
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MD5
1b96be3edf1ce13f7ef27ff174438749
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SHA1
b84cf7caef1798f00b68bdc988f05c375ae68312
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SHA256
f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b
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SHA512
fa1f51e1d215f73837152734e121d18a216cb284ead11cda1fb9972c0f397dcb47cb0e9e7f1889e66ed7e94a50dca174eed4d9adfbf304691c371d82ef136e64
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SSDEEP
98304:cWlQWNKQPwrulMpohZQjk4lnBk2/sgseYryCqOgI7KD2bsOvJZ+2+Y3:cW16ulMesXlnBp/sjruCqmtIOvaM
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral1/memory/780-2-0x00000000044C0000-0x0000000004DAB000-memory.dmp family_glupteba behavioral1/memory/780-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/780-56-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/780-57-0x00000000044C0000-0x0000000004DAB000-memory.dmp family_glupteba behavioral1/memory/780-55-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba behavioral1/memory/3736-137-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba behavioral1/memory/2976-220-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba behavioral1/memory/2976-230-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba behavioral1/memory/2976-232-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba behavioral1/memory/2976-234-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba behavioral1/memory/2976-236-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba behavioral1/memory/2976-238-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba behavioral1/memory/2976-240-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba behavioral1/memory/2976-242-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba behavioral1/memory/2976-244-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba behavioral1/memory/2976-246-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba behavioral1/memory/2976-248-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba behavioral1/memory/2976-250-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba behavioral1/memory/2976-252-0x0000000000400000-0x0000000002362000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4280 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2976 csrss.exe 836 injector.exe 4652 windefender.exe 1060 windefender.exe -
resource yara_rule behavioral1/files/0x0008000000023401-223.dat upx behavioral1/memory/4652-224-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4652-229-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1060-228-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1060-231-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1060-235-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe Set value (str) \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\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 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe File created C:\Windows\rss\csrss.exe f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.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 2208 sc.exe -
pid Process 636 powershell.exe 3852 powershell.exe 2852 powershell.exe 3828 powershell.exe 4528 powershell.exe 992 powershell.exe 1796 powershell.exe -
Program crash 2 IoCs
pid pid_target Process procid_target 2232 780 WerFault.exe 82 3816 3736 WerFault.exe 93 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2924 schtasks.exe 4904 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-364 = "Middle East Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time" f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time" f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-385 = "Namibia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1832 = "Russia TZ 2 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-532 = "Sri Lanka Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-671 = "AUS Eastern Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-104 = "Central Brazilian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-172 = "Central Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-931 = "Coordinated Universal Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time" f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time" f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-449 = "Azerbaijan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-31 = "Mid-Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-872 = "Pakistan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time" f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time" f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.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\2a\52C64B7E\@tzres.dll,-2412 = "Marquesas Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust 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\2a\52C64B7E\@tzres.dll,-571 = "China Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-331 = "E. Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2411 = "Marquesas Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2321 = "Sakhalin Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2852 powershell.exe 2852 powershell.exe 780 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe 780 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe 3828 powershell.exe 3828 powershell.exe 3828 powershell.exe 3736 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe 3736 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe 3736 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe 3736 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe 3736 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe 3736 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe 3736 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe 3736 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe 3736 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe 3736 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe 4528 powershell.exe 4528 powershell.exe 992 powershell.exe 992 powershell.exe 992 powershell.exe 1796 powershell.exe 1796 powershell.exe 1796 powershell.exe 636 powershell.exe 636 powershell.exe 636 powershell.exe 3852 powershell.exe 3852 powershell.exe 3852 powershell.exe 836 injector.exe 836 injector.exe 836 injector.exe 836 injector.exe 836 injector.exe 836 injector.exe 2976 csrss.exe 2976 csrss.exe 836 injector.exe 836 injector.exe 836 injector.exe 836 injector.exe 836 injector.exe 836 injector.exe 2976 csrss.exe 2976 csrss.exe 836 injector.exe 836 injector.exe 2976 csrss.exe 2976 csrss.exe 836 injector.exe 836 injector.exe 836 injector.exe 836 injector.exe 836 injector.exe 836 injector.exe 836 injector.exe 836 injector.exe 836 injector.exe 836 injector.exe 836 injector.exe 836 injector.exe 836 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 2852 powershell.exe Token: SeDebugPrivilege 780 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe Token: SeImpersonatePrivilege 780 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe Token: SeDebugPrivilege 3828 powershell.exe Token: SeDebugPrivilege 4528 powershell.exe Token: SeDebugPrivilege 992 powershell.exe Token: SeDebugPrivilege 1796 powershell.exe Token: SeDebugPrivilege 636 powershell.exe Token: SeDebugPrivilege 3852 powershell.exe Token: SeSystemEnvironmentPrivilege 2976 csrss.exe Token: SeSecurityPrivilege 2208 sc.exe Token: SeSecurityPrivilege 2208 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 780 wrote to memory of 2852 780 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe 86 PID 780 wrote to memory of 2852 780 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe 86 PID 780 wrote to memory of 2852 780 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe 86 PID 3736 wrote to memory of 3828 3736 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe 98 PID 3736 wrote to memory of 3828 3736 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe 98 PID 3736 wrote to memory of 3828 3736 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe 98 PID 3736 wrote to memory of 4360 3736 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe 102 PID 3736 wrote to memory of 4360 3736 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe 102 PID 4360 wrote to memory of 4280 4360 cmd.exe 104 PID 4360 wrote to memory of 4280 4360 cmd.exe 104 PID 3736 wrote to memory of 4528 3736 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe 105 PID 3736 wrote to memory of 4528 3736 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe 105 PID 3736 wrote to memory of 4528 3736 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe 105 PID 3736 wrote to memory of 992 3736 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe 109 PID 3736 wrote to memory of 992 3736 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe 109 PID 3736 wrote to memory of 992 3736 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe 109 PID 3736 wrote to memory of 2976 3736 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe 111 PID 3736 wrote to memory of 2976 3736 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe 111 PID 3736 wrote to memory of 2976 3736 f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe 111 PID 2976 wrote to memory of 1796 2976 csrss.exe 114 PID 2976 wrote to memory of 1796 2976 csrss.exe 114 PID 2976 wrote to memory of 1796 2976 csrss.exe 114 PID 2976 wrote to memory of 636 2976 csrss.exe 120 PID 2976 wrote to memory of 636 2976 csrss.exe 120 PID 2976 wrote to memory of 636 2976 csrss.exe 120 PID 2976 wrote to memory of 3852 2976 csrss.exe 122 PID 2976 wrote to memory of 3852 2976 csrss.exe 122 PID 2976 wrote to memory of 3852 2976 csrss.exe 122 PID 2976 wrote to memory of 836 2976 csrss.exe 124 PID 2976 wrote to memory of 836 2976 csrss.exe 124 PID 4652 wrote to memory of 3508 4652 windefender.exe 130 PID 4652 wrote to memory of 3508 4652 windefender.exe 130 PID 4652 wrote to memory of 3508 4652 windefender.exe 130 PID 3508 wrote to memory of 2208 3508 cmd.exe 131 PID 3508 wrote to memory of 2208 3508 cmd.exe 131 PID 3508 wrote to memory of 2208 3508 cmd.exe 131 -
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\f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe"C:\Users\Admin\AppData\Local\Temp\f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:780 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2852
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C:\Users\Admin\AppData\Local\Temp\f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.exe"C:\Users\Admin\AppData\Local\Temp\f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b.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:3736 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3828
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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:4360 -
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:4280
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4528
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:992
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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:2976 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1796
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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:2924
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1528
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:636
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3852
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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:836
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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:4904
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4652 -
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:3508 -
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:2208
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3736 -s 8723⤵
- Program crash
PID:3816
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 780 -s 7482⤵
- Program crash
PID:2232
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 780 -ip 7801⤵PID:1408
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3736 -ip 37361⤵PID:2952
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1060
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD53d086a433708053f9bf9523e1d87a4e8
SHA1b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA2566f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
SHA512931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5cbd545ecf548defbbf06b5f91962d84b
SHA15f674c289a3aa58d94dff692e9f84ca26a60bf8b
SHA2567b61eb24ae41a490f057f56fc281d528972414bd37e9e7ff616a84d30ddbd949
SHA512e204615ded8eaa0988b69b16f3d91493719039dbdbd8b1f11f29716152b56a806d78712b9645437fd4aba32095478e1b36cb7c8049b5442d15f6c03788771725
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54b86c07dce125841cc646ee43d966f82
SHA155f21598f17cefa8ba1dc13181a687aaff6cd2e1
SHA25613674b0b85c606e87b09fb8e12199f756e384ef9b7b28b09d189b1dafbc456d9
SHA5128f3d73fd6d5402e6df0f4d43ed6bbd4216e47c2e30cbb981035599a97466b83db2a340a4d43fa84bf64d68284ce9614ddefdfc4929caa89aac12d1eb37aa3668
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55e57cf851495d8a6db291b1fad3f81ac
SHA164cff35c57e314155d387205d568940f59d4fc82
SHA2564d5f59540cfd739bc2e7c6236ae1867825fb63940e3c5f5578fc72d2f4603bd0
SHA512c3cd0462dfc2c4a8ec7bb9464fdc847e7a926271cdb7581dd68fb546728c4387f4f9b697270690438769335c4bae6346e485917c37fc987f2852efcfa7b2c307
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d5f4dc06145e6767a89165baf40d2acd
SHA1e0c63af1338bc60fba328636e40cddefcbb065ba
SHA2563547560f540e65aaf0f1570545313d9fedbc0c16732705d11269de0126956ccf
SHA512083f3aee93162f326f0fef559f3cd17a22f6527fecd50bfac29a05c1998dd3b1ff165ae5500c27841e4a174af3b31843a3f1fd3746b3a59eeb56299a4d03fa5c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a86c1dc4d65aef3dab104a6edc2ebd32
SHA1a85cef04cc1f147350b92b06046dcae9d2735e01
SHA256816a4a06cb1c967de3eb8826a78c536f4f387e4877a1b26cf7bc29b805518ba8
SHA512d7507632d00274e6848866bfb7730a0837caa4801aa0a54c0a2d94ada03411b95aa087db980f6cab49a1e4f145a7318f35bb922175b072a4537e54b49a8d1c21
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Filesize
4.1MB
MD51b96be3edf1ce13f7ef27ff174438749
SHA1b84cf7caef1798f00b68bdc988f05c375ae68312
SHA256f1f9c0ec0c453696267789f18c0c818444ea59d367ae46735a6c0bca18c9ff2b
SHA512fa1f51e1d215f73837152734e121d18a216cb284ead11cda1fb9972c0f397dcb47cb0e9e7f1889e66ed7e94a50dca174eed4d9adfbf304691c371d82ef136e64
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec