0de35227...3894 | VMRay Analyzer Report
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VTI SCORE: 100/100
Dynamic Analysis Report
Classification: Ransomware, Trojan

sihvgt.exe

Windows Exe (x86-32)

Created at 2019-05-06T19:42:00

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Remarks (1/1)

(0x2000004): The operating system was rebooted during the analysis because the sample installed a startup script, task or application for persistence.

VMRay Threat Indicators (9 rules, 35 matches)

Severity Category Operation Count Classification
5/5
Local AV Malicious content was detected by heuristic scan 2 -
5/5
Reputation Known malicious file 1 Trojan
  • File "C:\Users\5p5NrGJn0jS HALPmcxz\Desktop\sihvgt.exe" is a known malicious file.
    ...
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.
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4/5
File System Renames user files 1 Ransomware
  • Renames multiple user files. This is an indicator for an encryption attempt.
    ...
3/5
File System Possibly drops ransom note files 1 Ransomware
  • Possibly drops ransom note files (creates 33 instances of the file "decrypt_files.html" in different locations).
    ...
1/5
Persistence Installs system startup script or application 1 -
  • Adds "C:\Users\5p5NrGJn0jS HALPmcxz\AppData\Roaming\sihvgt.exe" to Windows startup via registry.
    ...
1/5
Masquerade Changes folder appearance 26 -
  • Folder "c:\users\public" has a changed appearance.
    ...
  • Folder "c:\users\public\videos" has a changed appearance.
    ...
  • Folder "c:\users\public\videos\sample videos" 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\pictures" has a changed appearance.
    ...
  • Folder "c:\users\public\pictures\sample pictures" 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\libraries" has a changed appearance.
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  • Folder "c:\users\public\downloads" has a changed appearance.
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  • Folder "c:\users\public\documents" has a changed appearance.
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  • Folder "c:\users\public\desktop" has a changed appearance.
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  • Folder "c:\users\default\videos" has a changed appearance.
    ...
  • Folder "c:\users\default\searches" has a changed appearance.
    ...
  • Folder "c:\users\default\saved games" has a changed appearance.
    ...
  • Folder "c:\users\default\pictures" has a changed appearance.
    ...
  • Folder "c:\users\default\music" has a changed appearance.
    ...
  • Folder "c:\users\default\links" 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\downloads" has a changed appearance.
    ...
  • Folder "c:\users\default\documents" has a changed appearance.
    ...
  • Folder "c:\users\default\desktop" has a changed appearance.
    ...
  • Folder "c:\users\default\contacts" has a changed appearance.
    ...
1/5
File System Creates an unusually large number of files 1 -
0/5
Process Enumerates running processes 1 -

Screenshots

Monitored Processes

Process Graph

Process Graph Legend

Sample Information

ID #640030
MD5 fc4bc20b3282f77a8df2aaac289bca5f Copy to Clipboard
SHA1 e5015876c0106d4f289f47b3c90840bbfd11ed21 Copy to Clipboard
SHA256 0de352279272470dcc6e175e3148c8843856063a8502fada64a54fe6e6af3894 Copy to Clipboard
SSDeep 1536:pm2bgutzZi79QlgTHf4tq6KhxXwr3+SaG8:Vtz479QlOWWXK5 Copy to Clipboard
ImpHash 8b7c7b5a664c1bcfdab545b5ffcdae40 Copy to Clipboard
Filename sihvgt.exe
File Size 55.50 KB
Sample Type Windows Exe (x86-32)

Analysis Information

Creation Time 2019-05-06 21:42 (UTC+2)
Analysis Duration 00:04:38
Number of Monitored Processes 1
Execution Successful True
Reputation Enabled True
WHOIS Enabled True
Local AV Enabled True
YARA Enabled True
Number of AV Matches 3
Number of YARA Matches 0
Termination Reason Timeout
Tags
Function Logfile
Download-Icon
Exit-Icon

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". 


    

   

   

    Before
   

   

    

     

      
       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".
     

     

    

   

   

    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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     Expand-Icon
    

    

     Exit-Icon
    

   

   

    

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