Analysis
- max time kernel
147s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system - submitted
16/12/2023, 02:41
Behavioral task
behavioral1
Sample
a4b6ae4a5718a076483089c71f90aaf9.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
a4b6ae4a5718a076483089c71f90aaf9.exe
Resource
win10v2004-20231215-en
General
- Target a4b6ae4a5718a076483089c71f90aaf9.exe
- Size 1.5MB
- Sample231216-c6e7hsbef4
- SHA256 fdaa21ae214d6212d81b966051fa320b9b6cea4181f8e8b64776f4bface87e4f
- MD5 a4b6ae4a5718a076483089c71f90aaf9
- SHA1 68605bcaed4de8a26b2c45d4124b9db098cdc0cf
- SHA512 219e7365a9c36c019a5d2345e483bb03bde686b0c13b501391ff44ca3bf361eacf21b15f20193db75917c27886eed750f7c52cd10c432ef4c94bf571ad986817
- SSDEEP 24576:KZ8oMOMwiZhlVTfkG+3DFk83Hsv17ZEQmNHpFWjOCMGDahtjVV:KZ8oezAprsv1ZROCMGDah5
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- DcRat 59 IoCs
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
description ioc pid Process 5084 schtasks.exe 384 schtasks.exe 3816 schtasks.exe 3440 schtasks.exe 1732 schtasks.exe 3928 schtasks.exe 1592 schtasks.exe 2672 schtasks.exe 916 schtasks.exe 952 schtasks.exe 4364 schtasks.exe 5104 schtasks.exe 3964 schtasks.exe 880 schtasks.exe File created C:\Program Files (x86)\Reference Assemblies\Microsoft\csrss.exe a4b6ae4a5718a076483089c71f90aaf9.exe 2980 schtasks.exe 4476 schtasks.exe 3960 schtasks.exe 60 schtasks.exe 3088 schtasks.exe 4912 schtasks.exe 4580 schtasks.exe 2364 schtasks.exe 2608 schtasks.exe 2888 schtasks.exe 1892 schtasks.exe 3468 schtasks.exe 4964 schtasks.exe 4268 schtasks.exe 4720 schtasks.exe 4344 schtasks.exe 2952 schtasks.exe 1012 schtasks.exe 3352 schtasks.exe 404 schtasks.exe 4620 schtasks.exe 2224 schtasks.exe 2788 schtasks.exe 1888 schtasks.exe 1832 schtasks.exe 2912 schtasks.exe 4988 schtasks.exe 4812 schtasks.exe 64 schtasks.exe 1240 schtasks.exe 2772 schtasks.exe 1404 schtasks.exe 4628 schtasks.exe 3992 schtasks.exe 1400 schtasks.exe File created C:\Program Files (x86)\Reference Assemblies\Microsoft\886983d96e3d3e a4b6ae4a5718a076483089c71f90aaf9.exe 4004 schtasks.exe 2424 schtasks.exe 4656 schtasks.exe 5060 schtasks.exe 4820 schtasks.exe 3660 schtasks.exe 4764 schtasks.exe 4704 schtasks.exe - Modifies WinLogon for persistence 2 TTPs 19 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Reference Assemblies\\Microsoft\\csrss.exe\", \"C:\\Users\\Default\\NetHood\\services.exe\", \"C:\\Users\\All Users\\Documents\\RuntimeBroker.exe\", \"C:\\odt\\fontdrvhost.exe\", \"C:\\Program Files\\Windows Security\\BrowserCore\\en-US\\winlogon.exe\", \"C:\\Windows\\InputMethod\\CHS\\OfficeClickToRun.exe\", \"C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Esl\\smss.exe\", \"C:\\Program Files\\Java\\jdk-1.8\\include\\RuntimeBroker.exe\", \"C:\\odt\\WmiPrvSE.exe\", \"C:\\Program Files\\Internet Explorer\\ja-JP\\TextInputHost.exe\", \"C:\\Windows\\DiagTrack\\Settings\\OfficeClickToRun.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Reference Assemblies\\Microsoft\\csrss.exe\", \"C:\\Users\\Default\\NetHood\\services.exe\", \"C:\\Users\\All Users\\Documents\\RuntimeBroker.exe\", \"C:\\odt\\fontdrvhost.exe\", \"C:\\Program Files\\Windows Security\\BrowserCore\\en-US\\winlogon.exe\", \"C:\\Windows\\InputMethod\\CHS\\OfficeClickToRun.exe\", \"C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Esl\\smss.exe\", \"C:\\Program Files\\Java\\jdk-1.8\\include\\RuntimeBroker.exe\", \"C:\\odt\\WmiPrvSE.exe\", \"C:\\Program Files\\Internet Explorer\\ja-JP\\TextInputHost.exe\", \"C:\\Windows\\DiagTrack\\Settings\\OfficeClickToRun.exe\", \"C:\\odt\\lsass.exe\", \"C:\\Recovery\\WindowsRE\\csrss.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Reference Assemblies\\Microsoft\\csrss.exe\", \"C:\\Users\\Default\\NetHood\\services.exe\", \"C:\\Users\\All Users\\Documents\\RuntimeBroker.exe\", \"C:\\odt\\fontdrvhost.exe\", \"C:\\Program Files\\Windows Security\\BrowserCore\\en-US\\winlogon.exe\", \"C:\\Windows\\InputMethod\\CHS\\OfficeClickToRun.exe\", \"C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Esl\\smss.exe\", \"C:\\Program Files\\Java\\jdk-1.8\\include\\RuntimeBroker.exe\", \"C:\\odt\\WmiPrvSE.exe\", \"C:\\Program Files\\Internet Explorer\\ja-JP\\TextInputHost.exe\", \"C:\\Windows\\DiagTrack\\Settings\\OfficeClickToRun.exe\", \"C:\\odt\\lsass.exe\", \"C:\\Recovery\\WindowsRE\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\backgroundTaskHost.exe\", \"C:\\Program Files (x86)\\Internet Explorer\\ja-JP\\dwm.exe\", \"C:\\Windows\\Speech_OneCore\\Engines\\Lexicon\\en-US\\System.exe\", \"C:\\odt\\sysmon.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Reference Assemblies\\Microsoft\\csrss.exe\", \"C:\\Users\\Default\\NetHood\\services.exe\", \"C:\\Users\\All Users\\Documents\\RuntimeBroker.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Reference Assemblies\\Microsoft\\csrss.exe\", \"C:\\Users\\Default\\NetHood\\services.exe\", \"C:\\Users\\All Users\\Documents\\RuntimeBroker.exe\", \"C:\\odt\\fontdrvhost.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Reference Assemblies\\Microsoft\\csrss.exe\", \"C:\\Users\\Default\\NetHood\\services.exe\", \"C:\\Users\\All Users\\Documents\\RuntimeBroker.exe\", \"C:\\odt\\fontdrvhost.exe\", \"C:\\Program Files\\Windows Security\\BrowserCore\\en-US\\winlogon.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Reference Assemblies\\Microsoft\\csrss.exe\", \"C:\\Users\\Default\\NetHood\\services.exe\", \"C:\\Users\\All Users\\Documents\\RuntimeBroker.exe\", \"C:\\odt\\fontdrvhost.exe\", \"C:\\Program Files\\Windows Security\\BrowserCore\\en-US\\winlogon.exe\", \"C:\\Windows\\InputMethod\\CHS\\OfficeClickToRun.exe\", \"C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Esl\\smss.exe\", \"C:\\Program Files\\Java\\jdk-1.8\\include\\RuntimeBroker.exe\", \"C:\\odt\\WmiPrvSE.exe\", \"C:\\Program Files\\Internet Explorer\\ja-JP\\TextInputHost.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Reference Assemblies\\Microsoft\\csrss.exe\", \"C:\\Users\\Default\\NetHood\\services.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Reference Assemblies\\Microsoft\\csrss.exe\", \"C:\\Users\\Default\\NetHood\\services.exe\", \"C:\\Users\\All Users\\Documents\\RuntimeBroker.exe\", \"C:\\odt\\fontdrvhost.exe\", \"C:\\Program Files\\Windows Security\\BrowserCore\\en-US\\winlogon.exe\", \"C:\\Windows\\InputMethod\\CHS\\OfficeClickToRun.exe\", \"C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Esl\\smss.exe\", \"C:\\Program Files\\Java\\jdk-1.8\\include\\RuntimeBroker.exe\", \"C:\\odt\\WmiPrvSE.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Reference Assemblies\\Microsoft\\csrss.exe\", \"C:\\Users\\Default\\NetHood\\services.exe\", \"C:\\Users\\All Users\\Documents\\RuntimeBroker.exe\", \"C:\\odt\\fontdrvhost.exe\", \"C:\\Program Files\\Windows Security\\BrowserCore\\en-US\\winlogon.exe\", \"C:\\Windows\\InputMethod\\CHS\\OfficeClickToRun.exe\", \"C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Esl\\smss.exe\", \"C:\\Program Files\\Java\\jdk-1.8\\include\\RuntimeBroker.exe\", \"C:\\odt\\WmiPrvSE.exe\", \"C:\\Program Files\\Internet Explorer\\ja-JP\\TextInputHost.exe\", \"C:\\Windows\\DiagTrack\\Settings\\OfficeClickToRun.exe\", \"C:\\odt\\lsass.exe\", \"C:\\Recovery\\WindowsRE\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\backgroundTaskHost.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Reference Assemblies\\Microsoft\\csrss.exe\", \"C:\\Users\\Default\\NetHood\\services.exe\", \"C:\\Users\\All Users\\Documents\\RuntimeBroker.exe\", \"C:\\odt\\fontdrvhost.exe\", \"C:\\Program Files\\Windows Security\\BrowserCore\\en-US\\winlogon.exe\", \"C:\\Windows\\InputMethod\\CHS\\OfficeClickToRun.exe\", \"C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Esl\\smss.exe\", \"C:\\Program Files\\Java\\jdk-1.8\\include\\RuntimeBroker.exe\", \"C:\\odt\\WmiPrvSE.exe\", \"C:\\Program Files\\Internet Explorer\\ja-JP\\TextInputHost.exe\", \"C:\\Windows\\DiagTrack\\Settings\\OfficeClickToRun.exe\", \"C:\\odt\\lsass.exe\", \"C:\\Recovery\\WindowsRE\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\backgroundTaskHost.exe\", \"C:\\Program Files (x86)\\Internet Explorer\\ja-JP\\dwm.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Reference Assemblies\\Microsoft\\csrss.exe\", \"C:\\Users\\Default\\NetHood\\services.exe\", \"C:\\Users\\All Users\\Documents\\RuntimeBroker.exe\", \"C:\\odt\\fontdrvhost.exe\", \"C:\\Program Files\\Windows Security\\BrowserCore\\en-US\\winlogon.exe\", \"C:\\Windows\\InputMethod\\CHS\\OfficeClickToRun.exe\", \"C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Esl\\smss.exe\", \"C:\\Program Files\\Java\\jdk-1.8\\include\\RuntimeBroker.exe\", \"C:\\odt\\WmiPrvSE.exe\", \"C:\\Program Files\\Internet Explorer\\ja-JP\\TextInputHost.exe\", \"C:\\Windows\\DiagTrack\\Settings\\OfficeClickToRun.exe\", \"C:\\odt\\lsass.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Reference Assemblies\\Microsoft\\csrss.exe\", \"C:\\Users\\Default\\NetHood\\services.exe\", \"C:\\Users\\All Users\\Documents\\RuntimeBroker.exe\", \"C:\\odt\\fontdrvhost.exe\", \"C:\\Program Files\\Windows Security\\BrowserCore\\en-US\\winlogon.exe\", \"C:\\Windows\\InputMethod\\CHS\\OfficeClickToRun.exe\", \"C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Esl\\smss.exe\", \"C:\\Program Files\\Java\\jdk-1.8\\include\\RuntimeBroker.exe\", \"C:\\odt\\WmiPrvSE.exe\", \"C:\\Program Files\\Internet Explorer\\ja-JP\\TextInputHost.exe\", \"C:\\Windows\\DiagTrack\\Settings\\OfficeClickToRun.exe\", \"C:\\odt\\lsass.exe\", \"C:\\Recovery\\WindowsRE\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\backgroundTaskHost.exe\", \"C:\\Program Files (x86)\\Internet Explorer\\ja-JP\\dwm.exe\", \"C:\\Windows\\Speech_OneCore\\Engines\\Lexicon\\en-US\\System.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Reference Assemblies\\Microsoft\\csrss.exe\", \"C:\\Users\\Default\\NetHood\\services.exe\", \"C:\\Users\\All Users\\Documents\\RuntimeBroker.exe\", \"C:\\odt\\fontdrvhost.exe\", \"C:\\Program Files\\Windows Security\\BrowserCore\\en-US\\winlogon.exe\", \"C:\\Windows\\InputMethod\\CHS\\OfficeClickToRun.exe\", \"C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Esl\\smss.exe\", \"C:\\Program Files\\Java\\jdk-1.8\\include\\RuntimeBroker.exe\", \"C:\\odt\\WmiPrvSE.exe\", \"C:\\Program Files\\Internet Explorer\\ja-JP\\TextInputHost.exe\", \"C:\\Windows\\DiagTrack\\Settings\\OfficeClickToRun.exe\", \"C:\\odt\\lsass.exe\", \"C:\\Recovery\\WindowsRE\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\backgroundTaskHost.exe\", \"C:\\Program Files (x86)\\Internet Explorer\\ja-JP\\dwm.exe\", \"C:\\Windows\\Speech_OneCore\\Engines\\Lexicon\\en-US\\System.exe\", \"C:\\odt\\sysmon.exe\", \"C:\\odt\\System.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Reference Assemblies\\Microsoft\\csrss.exe\", \"C:\\Users\\Default\\NetHood\\services.exe\", \"C:\\Users\\All Users\\Documents\\RuntimeBroker.exe\", \"C:\\odt\\fontdrvhost.exe\", \"C:\\Program Files\\Windows Security\\BrowserCore\\en-US\\winlogon.exe\", \"C:\\Windows\\InputMethod\\CHS\\OfficeClickToRun.exe\", \"C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Esl\\smss.exe\", \"C:\\Program Files\\Java\\jdk-1.8\\include\\RuntimeBroker.exe\", \"C:\\odt\\WmiPrvSE.exe\", \"C:\\Program Files\\Internet Explorer\\ja-JP\\TextInputHost.exe\", \"C:\\Windows\\DiagTrack\\Settings\\OfficeClickToRun.exe\", \"C:\\odt\\lsass.exe\", \"C:\\Recovery\\WindowsRE\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\backgroundTaskHost.exe\", \"C:\\Program Files (x86)\\Internet Explorer\\ja-JP\\dwm.exe\", \"C:\\Windows\\Speech_OneCore\\Engines\\Lexicon\\en-US\\System.exe\", \"C:\\odt\\sysmon.exe\", \"C:\\odt\\System.exe\", \"C:\\Windows\\Microsoft.NET\\Framework64\\3082\\wininit.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Reference Assemblies\\Microsoft\\csrss.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Reference Assemblies\\Microsoft\\csrss.exe\", \"C:\\Users\\Default\\NetHood\\services.exe\", \"C:\\Users\\All Users\\Documents\\RuntimeBroker.exe\", \"C:\\odt\\fontdrvhost.exe\", \"C:\\Program Files\\Windows Security\\BrowserCore\\en-US\\winlogon.exe\", \"C:\\Windows\\InputMethod\\CHS\\OfficeClickToRun.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Reference Assemblies\\Microsoft\\csrss.exe\", \"C:\\Users\\Default\\NetHood\\services.exe\", \"C:\\Users\\All Users\\Documents\\RuntimeBroker.exe\", \"C:\\odt\\fontdrvhost.exe\", \"C:\\Program Files\\Windows Security\\BrowserCore\\en-US\\winlogon.exe\", \"C:\\Windows\\InputMethod\\CHS\\OfficeClickToRun.exe\", \"C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Esl\\smss.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Reference Assemblies\\Microsoft\\csrss.exe\", \"C:\\Users\\Default\\NetHood\\services.exe\", \"C:\\Users\\All Users\\Documents\\RuntimeBroker.exe\", \"C:\\odt\\fontdrvhost.exe\", \"C:\\Program Files\\Windows Security\\BrowserCore\\en-US\\winlogon.exe\", \"C:\\Windows\\InputMethod\\CHS\\OfficeClickToRun.exe\", \"C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Esl\\smss.exe\", \"C:\\Program Files\\Java\\jdk-1.8\\include\\RuntimeBroker.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe - Process spawned unexpected child process 57 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 5104 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4364 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2608 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2980 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 3440 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2772 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4820 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 384 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4720 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4344 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1892 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2424 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1592 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 3964 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 404 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 5084 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 3660 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1400 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2364 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 3992 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 880 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2224 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4812 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 3816 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4912 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 3960 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4620 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 3088 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2888 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2788 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2952 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4004 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2672 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 60 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 916 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2912 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4476 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4988 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1404 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1888 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 3928 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4628 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 952 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1732 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1832 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4656 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1012 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 3352 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 3468 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4764 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4580 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 5060 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 64 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1240 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4704 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4268 2420 schtasks.exe 90 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4964 2420 schtasks.exe 90 -
resource yara_rule behavioral2/memory/4188-0-0x0000000000B10000-0x0000000000C96000-memory.dmp dcrat behavioral2/files/0x000600000002313d-24.dat dcrat - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation a4b6ae4a5718a076483089c71f90aaf9.exe - Executes dropped EXE 1 IoCs
pid Process 3148 TextInputHost.exe - Adds Run key to start application 2 TTPs 38 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fontdrvhost = "\"C:\\odt\\fontdrvhost.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winlogon = "\"C:\\Program Files\\Windows Security\\BrowserCore\\en-US\\winlogon.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\OfficeClickToRun = "\"C:\\Windows\\DiagTrack\\Settings\\OfficeClickToRun.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Recovery\\WindowsRE\\csrss.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dwm = "\"C:\\Program Files (x86)\\Internet Explorer\\ja-JP\\dwm.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wininit = "\"C:\\Windows\\Microsoft.NET\\Framework64\\3082\\wininit.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\OfficeClickToRun = "\"C:\\Windows\\InputMethod\\CHS\\OfficeClickToRun.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\smss = "\"C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Esl\\smss.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WmiPrvSE = "\"C:\\odt\\WmiPrvSE.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\OfficeClickToRun = "\"C:\\Windows\\DiagTrack\\Settings\\OfficeClickToRun.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Recovery\\WindowsRE\\csrss.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System = "\"C:\\odt\\System.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RuntimeBroker = "\"C:\\Users\\All Users\\Documents\\RuntimeBroker.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\smss = "\"C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Esl\\smss.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\backgroundTaskHost = "\"C:\\Recovery\\WindowsRE\\backgroundTaskHost.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fontdrvhost = "\"C:\\odt\\fontdrvhost.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winlogon = "\"C:\\Program Files\\Windows Security\\BrowserCore\\en-US\\winlogon.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WmiPrvSE = "\"C:\\odt\\WmiPrvSE.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lsass = "\"C:\\odt\\lsass.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\backgroundTaskHost = "\"C:\\Recovery\\WindowsRE\\backgroundTaskHost.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dwm = "\"C:\\Program Files (x86)\\Internet Explorer\\ja-JP\\dwm.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RuntimeBroker = "\"C:\\Users\\All Users\\Documents\\RuntimeBroker.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\TextInputHost = "\"C:\\Program Files\\Internet Explorer\\ja-JP\\TextInputHost.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\TextInputHost = "\"C:\\Program Files\\Internet Explorer\\ja-JP\\TextInputHost.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sysmon = "\"C:\\odt\\sysmon.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sysmon = "\"C:\\odt\\sysmon.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\services = "\"C:\\Users\\Default\\NetHood\\services.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\services = "\"C:\\Users\\Default\\NetHood\\services.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RuntimeBroker = "\"C:\\Program Files\\Java\\jdk-1.8\\include\\RuntimeBroker.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RuntimeBroker = "\"C:\\Program Files\\Java\\jdk-1.8\\include\\RuntimeBroker.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lsass = "\"C:\\odt\\lsass.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System = "\"C:\\Windows\\Speech_OneCore\\Engines\\Lexicon\\en-US\\System.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wininit = "\"C:\\Windows\\Microsoft.NET\\Framework64\\3082\\wininit.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Program Files (x86)\\Reference Assemblies\\Microsoft\\csrss.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Program Files (x86)\\Reference Assemblies\\Microsoft\\csrss.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\OfficeClickToRun = "\"C:\\Windows\\InputMethod\\CHS\\OfficeClickToRun.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System = "\"C:\\Windows\\Speech_OneCore\\Engines\\Lexicon\\en-US\\System.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System = "\"C:\\odt\\System.exe\"" a4b6ae4a5718a076483089c71f90aaf9.exe - Drops file in Program Files directory 13 IoCs
description ioc Process File created C:\Program Files\Java\jdk-1.8\include\RuntimeBroker.exe a4b6ae4a5718a076483089c71f90aaf9.exe File created C:\Program Files\Java\jdk-1.8\include\9e8d7a4ca61bd9 a4b6ae4a5718a076483089c71f90aaf9.exe File created C:\Program Files (x86)\Internet Explorer\ja-JP\dwm.exe a4b6ae4a5718a076483089c71f90aaf9.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Esl\smss.exe a4b6ae4a5718a076483089c71f90aaf9.exe File created C:\Program Files\Internet Explorer\ja-JP\TextInputHost.exe a4b6ae4a5718a076483089c71f90aaf9.exe File created C:\Program Files (x86)\Reference Assemblies\Microsoft\886983d96e3d3e a4b6ae4a5718a076483089c71f90aaf9.exe File created C:\Program Files\Windows Security\BrowserCore\en-US\cc11b995f2a76d a4b6ae4a5718a076483089c71f90aaf9.exe File created C:\Program Files (x86)\Internet Explorer\ja-JP\6cb0b6c459d5d3 a4b6ae4a5718a076483089c71f90aaf9.exe File created C:\Program Files (x86)\Reference Assemblies\Microsoft\csrss.exe a4b6ae4a5718a076483089c71f90aaf9.exe File opened for modification C:\Program Files (x86)\Reference Assemblies\Microsoft\csrss.exe a4b6ae4a5718a076483089c71f90aaf9.exe File created C:\Program Files\Windows Security\BrowserCore\en-US\winlogon.exe a4b6ae4a5718a076483089c71f90aaf9.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Esl\69ddcba757bf72 a4b6ae4a5718a076483089c71f90aaf9.exe File created C:\Program Files\Internet Explorer\ja-JP\22eafd247d37c3 a4b6ae4a5718a076483089c71f90aaf9.exe - Drops file in Windows directory 8 IoCs
description ioc Process File created C:\Windows\DiagTrack\Settings\e6c9b481da804f a4b6ae4a5718a076483089c71f90aaf9.exe File created C:\Windows\Speech_OneCore\Engines\Lexicon\en-US\System.exe a4b6ae4a5718a076483089c71f90aaf9.exe File created C:\Windows\Speech_OneCore\Engines\Lexicon\en-US\27d1bcfc3c54e0 a4b6ae4a5718a076483089c71f90aaf9.exe File created C:\Windows\Microsoft.NET\Framework64\3082\wininit.exe a4b6ae4a5718a076483089c71f90aaf9.exe File created C:\Windows\Microsoft.NET\Framework64\3082\56085415360792 a4b6ae4a5718a076483089c71f90aaf9.exe File created C:\Windows\InputMethod\CHS\OfficeClickToRun.exe a4b6ae4a5718a076483089c71f90aaf9.exe File created C:\Windows\InputMethod\CHS\e6c9b481da804f a4b6ae4a5718a076483089c71f90aaf9.exe File created C:\Windows\DiagTrack\Settings\OfficeClickToRun.exe a4b6ae4a5718a076483089c71f90aaf9.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Creates scheduled task(s) 1 TTPs 57 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2424 schtasks.exe 2364 schtasks.exe 952 schtasks.exe 1732 schtasks.exe 4344 schtasks.exe 4704 schtasks.exe 4620 schtasks.exe 3440 schtasks.exe 3088 schtasks.exe 2672 schtasks.exe 4268 schtasks.exe 2980 schtasks.exe 880 schtasks.exe 2888 schtasks.exe 2788 schtasks.exe 2952 schtasks.exe 4476 schtasks.exe 2772 schtasks.exe 1892 schtasks.exe 2608 schtasks.exe 60 schtasks.exe 4988 schtasks.exe 5060 schtasks.exe 3660 schtasks.exe 916 schtasks.exe 1404 schtasks.exe 1832 schtasks.exe 3352 schtasks.exe 3960 schtasks.exe 5104 schtasks.exe 4912 schtasks.exe 4628 schtasks.exe 4656 schtasks.exe 4820 schtasks.exe 1400 schtasks.exe 2224 schtasks.exe 3816 schtasks.exe 3468 schtasks.exe 4580 schtasks.exe 5084 schtasks.exe 2912 schtasks.exe 64 schtasks.exe 1240 schtasks.exe 3964 schtasks.exe 3992 schtasks.exe 384 schtasks.exe 1592 schtasks.exe 4364 schtasks.exe 1012 schtasks.exe 4764 schtasks.exe 3928 schtasks.exe 4964 schtasks.exe 4004 schtasks.exe 404 schtasks.exe 4812 schtasks.exe 1888 schtasks.exe 4720 schtasks.exe - Suspicious behavior: EnumeratesProcesses 27 IoCs
pid Process 4188 a4b6ae4a5718a076483089c71f90aaf9.exe 4188 a4b6ae4a5718a076483089c71f90aaf9.exe 4188 a4b6ae4a5718a076483089c71f90aaf9.exe 4188 a4b6ae4a5718a076483089c71f90aaf9.exe 4188 a4b6ae4a5718a076483089c71f90aaf9.exe 4188 a4b6ae4a5718a076483089c71f90aaf9.exe 4188 a4b6ae4a5718a076483089c71f90aaf9.exe 4188 a4b6ae4a5718a076483089c71f90aaf9.exe 4188 a4b6ae4a5718a076483089c71f90aaf9.exe 4188 a4b6ae4a5718a076483089c71f90aaf9.exe 4188 a4b6ae4a5718a076483089c71f90aaf9.exe 4188 a4b6ae4a5718a076483089c71f90aaf9.exe 4188 a4b6ae4a5718a076483089c71f90aaf9.exe 4188 a4b6ae4a5718a076483089c71f90aaf9.exe 4188 a4b6ae4a5718a076483089c71f90aaf9.exe 4188 a4b6ae4a5718a076483089c71f90aaf9.exe 4188 a4b6ae4a5718a076483089c71f90aaf9.exe 4188 a4b6ae4a5718a076483089c71f90aaf9.exe 3148 TextInputHost.exe 3148 TextInputHost.exe 3148 TextInputHost.exe 3148 TextInputHost.exe 3148 TextInputHost.exe 3148 TextInputHost.exe 3148 TextInputHost.exe 3148 TextInputHost.exe 3148 TextInputHost.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3148 TextInputHost.exe - Suspicious use of AdjustPrivilegeToken 5 IoCs
description pid Process Token: SeDebugPrivilege 4188 a4b6ae4a5718a076483089c71f90aaf9.exe Token: SeDebugPrivilege 3148 TextInputHost.exe Token: SeBackupPrivilege 4820 vssvc.exe Token: SeRestorePrivilege 4820 vssvc.exe Token: SeAuditPrivilege 4820 vssvc.exe - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 4188 wrote to memory of 3148 4188 a4b6ae4a5718a076483089c71f90aaf9.exe 148 PID 4188 wrote to memory of 3148 4188 a4b6ae4a5718a076483089c71f90aaf9.exe 148 - 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.
- Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\a4b6ae4a5718a076483089c71f90aaf9.exe"C:\Users\Admin\AppData\Local\Temp\a4b6ae4a5718a076483089c71f90aaf9.exe"1⤵
- DcRat
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4188 -
C:\Program Files\Internet Explorer\ja-JP\TextInputHost.exe"C:\Program Files\Internet Explorer\ja-JP\TextInputHost.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:3148
-
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrssc" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Reference Assemblies\Microsoft\csrss.exe'" /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:5104
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files (x86)\Reference Assemblies\Microsoft\csrss.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4364
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrssc" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Reference Assemblies\Microsoft\csrss.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2608
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "servicess" /sc MINUTE /mo 5 /tr "'C:\Users\Default\NetHood\services.exe'" /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2980
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Users\Default\NetHood\services.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3440
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "servicess" /sc MINUTE /mo 10 /tr "'C:\Users\Default\NetHood\services.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2772
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 7 /tr "'C:\Users\All Users\Documents\RuntimeBroker.exe'" /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4820
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Users\All Users\Documents\RuntimeBroker.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:384
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 11 /tr "'C:\Users\All Users\Documents\RuntimeBroker.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4720
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 6 /tr "'C:\odt\fontdrvhost.exe'" /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4344
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\odt\fontdrvhost.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1892
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 11 /tr "'C:\odt\fontdrvhost.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2424
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 5 /tr "'C:\Program Files\Windows Security\BrowserCore\en-US\winlogon.exe'" /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1592
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Program Files\Windows Security\BrowserCore\en-US\winlogon.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3964
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 14 /tr "'C:\Program Files\Windows Security\BrowserCore\en-US\winlogon.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:404
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 12 /tr "'C:\Windows\InputMethod\CHS\OfficeClickToRun.exe'" /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:5084
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "OfficeClickToRun" /sc ONLOGON /tr "'C:\Windows\InputMethod\CHS\OfficeClickToRun.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3660
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 8 /tr "'C:\Windows\InputMethod\CHS\OfficeClickToRun.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1400
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "smsss" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Adobe\Acrobat Reader DC\Esl\smss.exe'" /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2364
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Program Files (x86)\Adobe\Acrobat Reader DC\Esl\smss.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3992
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "smsss" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Adobe\Acrobat Reader DC\Esl\smss.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:880
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 5 /tr "'C:\Program Files\Java\jdk-1.8\include\RuntimeBroker.exe'" /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2224
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Program Files\Java\jdk-1.8\include\RuntimeBroker.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4812
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 7 /tr "'C:\Program Files\Java\jdk-1.8\include\RuntimeBroker.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3816
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 8 /tr "'C:\odt\WmiPrvSE.exe'" /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4912
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "WmiPrvSE" /sc ONLOGON /tr "'C:\odt\WmiPrvSE.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3960
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 11 /tr "'C:\odt\WmiPrvSE.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4620
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "TextInputHostT" /sc MINUTE /mo 11 /tr "'C:\Program Files\Internet Explorer\ja-JP\TextInputHost.exe'" /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3088
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "TextInputHost" /sc ONLOGON /tr "'C:\Program Files\Internet Explorer\ja-JP\TextInputHost.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2888
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "TextInputHostT" /sc MINUTE /mo 7 /tr "'C:\Program Files\Internet Explorer\ja-JP\TextInputHost.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2788
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 7 /tr "'C:\Windows\DiagTrack\Settings\OfficeClickToRun.exe'" /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2952
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "OfficeClickToRun" /sc ONLOGON /tr "'C:\Windows\DiagTrack\Settings\OfficeClickToRun.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4004
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 9 /tr "'C:\Windows\DiagTrack\Settings\OfficeClickToRun.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2672
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "lsassl" /sc MINUTE /mo 9 /tr "'C:\odt\lsass.exe'" /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:60
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\odt\lsass.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:916
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "lsassl" /sc MINUTE /mo 14 /tr "'C:\odt\lsass.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2912
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrssc" /sc MINUTE /mo 13 /tr "'C:\Recovery\WindowsRE\csrss.exe'" /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4476
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\csrss.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4988
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrssc" /sc MINUTE /mo 8 /tr "'C:\Recovery\WindowsRE\csrss.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1404
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 13 /tr "'C:\Recovery\WindowsRE\backgroundTaskHost.exe'" /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1888
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "backgroundTaskHost" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\backgroundTaskHost.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3928
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 12 /tr "'C:\Recovery\WindowsRE\backgroundTaskHost.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4628
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "dwmd" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Internet Explorer\ja-JP\dwm.exe'" /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:952
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\Program Files (x86)\Internet Explorer\ja-JP\dwm.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1732
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "dwmd" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Internet Explorer\ja-JP\dwm.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1832
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "SystemS" /sc MINUTE /mo 11 /tr "'C:\Windows\Speech_OneCore\Engines\Lexicon\en-US\System.exe'" /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4656
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Windows\Speech_OneCore\Engines\Lexicon\en-US\System.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1012
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "SystemS" /sc MINUTE /mo 10 /tr "'C:\Windows\Speech_OneCore\Engines\Lexicon\en-US\System.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3352
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "sysmons" /sc MINUTE /mo 11 /tr "'C:\odt\sysmon.exe'" /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3468
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "sysmon" /sc ONLOGON /tr "'C:\odt\sysmon.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4764
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "sysmons" /sc MINUTE /mo 12 /tr "'C:\odt\sysmon.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4580
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "SystemS" /sc MINUTE /mo 5 /tr "'C:\odt\System.exe'" /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:5060
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\odt\System.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:64
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "SystemS" /sc MINUTE /mo 10 /tr "'C:\odt\System.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1240
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "wininitw" /sc MINUTE /mo 13 /tr "'C:\Windows\Microsoft.NET\Framework64\3082\wininit.exe'" /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4704
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Windows\Microsoft.NET\Framework64\3082\wininit.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4268
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "wininitw" /sc MINUTE /mo 7 /tr "'C:\Windows\Microsoft.NET\Framework64\3082\wininit.exe'" /rl HIGHEST /f1⤵
- DcRat
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4964
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4820
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Replay Monitor
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Downloads
- Path C:\Program Files\Windows Security\BrowserCore\en-US\winlogon.exe
- Size 1.5MB
- SHA256 fdaa21ae214d6212d81b966051fa320b9b6cea4181f8e8b64776f4bface87e4f
- MD5 a4b6ae4a5718a076483089c71f90aaf9
- SHA1 68605bcaed4de8a26b2c45d4124b9db098cdc0cf
- SHA512 219e7365a9c36c019a5d2345e483bb03bde686b0c13b501391ff44ca3bf361eacf21b15f20193db75917c27886eed750f7c52cd10c432ef4c94bf571ad986817
- SSDEEP 24576:KZ8oMOMwiZhlVTfkG+3DFk83Hsv17ZEQmNHpFWjOCMGDahtjVV:KZ8oezAprsv1ZROCMGDah5
- MD5 SHA1 SHA512 SSDEEP