4c087637...693c | VMRay Analyzer Report
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VTI SCORE: 100/100
Dynamic Analysis Report
Classification: Ransomware, Trojan, Worm

larvvi.exe

Windows Exe (x86-32)

Created at 2019-05-18T08:21:00

...

Remarks (1/1)

(0x2000007): The operating system was rebooted during the analysis because the sample modified the master boot record (MBR).

VMRay Threat Indicators (10 rules, 41 matches)

Severity Category Operation Count Classification
5/5
Local AV Malicious content was detected by heuristic scan 2 -
5/5
Device Writes to Master Boot Record (MBR) 1 -
5/5
YARA YARA match 2 Worm
4/5
File System Renames user files 1 Ransomware
  • Renames multiple user files. This is an indicator for an encryption attempt.
    ...
4/5
File System Modifies content of user files 1 Ransomware
  • Modifies the content of multiple user files. This is an indicator for an encryption attempt.
    ...
4/5
OS Modifies Windows automatic backups 1 -
3/5
File System Possibly drops ransom note files 1 Ransomware
  • Possibly drops ransom note files (creates 127 instances of the file "HELP_PC.EZDZ-REMOVE.txt" in different locations).
    ...
2/5
Reputation Known suspicious file 1 Trojan
1/5
Masquerade Changes folder appearance 30 -
  • Folder "c:\users\5p5nrgjn0js halpmcxz\documents\my shapes" has a changed appearance.
    ...
  • Folder "c:\users\5p5nrgjn0js halpmcxz\downloads" has a changed appearance.
    ...
  • Folder "c:\users\5p5nrgjn0js halpmcxz\favorites" has a changed appearance.
    ...
  • Folder "c:\users\5p5nrgjn0js halpmcxz\favorites\links" has a changed appearance.
    ...
  • Folder "c:\users\5p5nrgjn0js halpmcxz\links" has a changed appearance.
    ...
  • Folder "c:\users\5p5nrgjn0js halpmcxz\saved games" has a changed appearance.
    ...
  • Folder "c:\users\5p5nrgjn0js halpmcxz\searches" has a changed appearance.
    ...
  • Folder "c:\users\5p5nrgjn0js halpmcxz\videos" has a changed appearance.
    ...
  • Folder "c:\users\default\desktop" has a changed appearance.
    ...
  • Folder "c:\users\default\documents" has a changed appearance.
    ...
  • Folder "c:\users\default\downloads" has a changed appearance.
    ...
  • Folder "c:\users\default\favorites" has a changed appearance.
    ...
  • Folder "c:\users\default\favorites\links" has a changed appearance.
    ...
  • Folder "c:\users\default\links" has a changed appearance.
    ...
  • Folder "c:\users\default\music" has a changed appearance.
    ...
  • Folder "c:\users\default\pictures" has a changed appearance.
    ...
  • Folder "c:\users\default\saved games" has a changed appearance.
    ...
  • Folder "c:\users\default\searches" has a changed appearance.
    ...
  • Folder "c:\users\default\videos" has a changed appearance.
    ...
  • Folder "c:\users\public\documents" has a changed appearance.
    ...
  • Folder "c:\users\public\downloads" has a changed appearance.
    ...
  • Folder "c:\users\public\libraries" has a changed appearance.
    ...
  • Folder "c:\users\public\music" has a changed appearance.
    ...
  • Folder "c:\users\public\music\sample music" has a changed appearance.
    ...
  • Folder "c:\users\public\pictures" has a changed appearance.
    ...
  • Folder "c:\users\public\recorded tv" has a changed appearance.
    ...
  • Folder "c:\users\public\recorded tv\sample media" has a changed appearance.
    ...
  • Folder "c:\users\public\videos" has a changed appearance.
    ...
  • Folder "c:\users\public\videos\sample videos" has a changed appearance.
    ...
1/5
File System Creates an unusually large number of files 1 -

Screenshots

Monitored Processes

Process Graph

Process Graph Legend

Sample Information

ID #653589
MD5 2dacb67b789fe767459c201ecf393c53 Copy to Clipboard
SHA1 23c0e4548a4599f79b5ea7659fcd910c14177f11 Copy to Clipboard
SHA256 4c0876373b6cf54b7ee328433c47a614644d75497bad44461dedf39f15f4693c Copy to Clipboard
SSDeep 384:YhH+INHm31pHyGe4Rfj1LKWQkD/e4DHOn+9IEjMxK3cZcso:ZY4TKWQY/e4DksMli Copy to Clipboard
ImpHash d8c7bbce2769ad454d16b7111f8e5e69 Copy to Clipboard
Filename larvvi.exe
File Size 19.00 KB
Sample Type Windows Exe (x86-32)

Analysis Information

Creation Time 2019-05-18 10:21 (UTC+2)
Analysis Duration 00:04:30
Number of Monitored Processes 4
Execution Successful True
Reputation Enabled True
WHOIS Enabled True
Local AV Enabled True
YARA Enabled True
Number of AV Matches 2
Number of YARA Matches 2
Termination Reason Timeout
Tags
Function Logfile
Download-Icon
Exit-Icon

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An offline version with limited functionality is also provided.
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      An offline version with limited functionality is also provided.
      

      The offline version is supported only in Mozilla Firefoxwith deactivated setting "security.fileuri.strict_origin_policy".
     

     

    

   

   

    After
   

   

    

     

      
       This feature requires an online-connection to the VMRay backend.
      
      

      

      An offline version with limited functionality is also provided.
      

      The offline version is supported only in Mozilla Firefoxwith deactivated setting "security.fileuri.strict_origin_policy".
     

     

    

   

   

    

     
      

       
       
       
       
      

     
     
     
    

   

  

  

   

    
    

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