VulturiBuilder Insecure Permissions

`Discovery / credits: Malvuln - malvuln.com (c) 2022  
Original source: https://malvuln.com/advisory/ca294b2f778abc14fef6313b3cea7155.txt  
Contact: [email protected]  
Media: twitter.com/malvuln  
  
Threat: VulturiBuilder  
Vulnerability: Insecure Permissions  
Description: The malware writes an .EXE with insecure permissions under c:\ drive granting change (C) permissions to the authenticated user group. Standard users can rename the executable dropped by the malware to disable it or replace it with their own executable. Then wait for a privileged user to logon to the infected machine to potentially escalate privileges.  
Type: PE32  
MD5: ca294b2f778abc14fef6313b3cea7155  
Vuln ID: MVID-2022-0457  
Disclosure: 01/19/2022   
  
  
Exploit/PoC:  
C:\>cacls hate.exe  
C:\hate.exe BUILTIN\Administrators:(ID)F  
NT AUTHORITY\SYSTEM:(ID)F  
BUILTIN\Users:(ID)R  
NT AUTHORITY\Authenticated Users:(ID)C  
  
  
C:\>dir hate.exe  
Volume in drive C has no label.  
  
Directory of C:\  
  
01/11/2022 07:25 PM 298,496 hate.exe  
1 File(s) 298,496 bytes  
0 Dir(s) 27,531,624,448 bytes free  
  
  
Disclaimer: The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or otherwise. Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit is given to the author. The author is not responsible for any misuse of the information contained herein and accepts no responsibility for any damage caused by the use or misuse of this information. The author prohibits any malicious use of security related information or exploits by the author or elsewhere. Do not attempt to download Malware samples. The author of this website takes no responsibility for any kind of damages occurring from improper Malware handling or the downloading of ANY Malware mentioned on this website or elsewhere. All content Copyright (c) Malvuln.com (TM).  
`