8d833937...1169 | VMRay Analyzer Report
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VTI SCORE: 100/100
Dynamic Analysis Report
Classification: Ransomware

bs03u4lh.exe

Windows Exe (x86-32)

Created at 2019-05-21T16:12:00

...

Remarks (1/1)

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

VMRay Threat Indicators (9 rules, 9 matches)

Severity Category Operation Count Classification
5/5
Local AV Malicious content was detected by heuristic scan 1 -
5/5
Device Writes to Master Boot Record (MBR) 1 -
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
File System Renames user files 1 Ransomware
  • Renames 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 112 instances of the file "# DECRYPT MY FILES #.txt" in different locations).
    ...
2/5
Anti Analysis Resolves APIs dynamically to possibly evade static detection 1 -
2/5
OS Changes the desktop wallpaper. 1 -
1/5
Process Creates process with hidden window 1 -
  • The process "vssadmin.exe" starts with hidden window.
    ...

Screenshots

Monitored Processes

Process Graph

Process Graph Legend

Sample Information

ID #657417
MD5 6d21c5c3bcff6076179bccd9ea6d1464 Copy to Clipboard
SHA1 75aa1e3404aaab3a11ee7cb2f7e3682145fa6324 Copy to Clipboard
SHA256 8d833937f4da8ab0269850f961e8a9f963c23e6bef04a31af925a152f01a1169 Copy to Clipboard
SSDeep 12288:8mC4VMy4L1rWXVr0YHM9Jl0VXRqg+i04c3nPwhOCVbSB:Wy4L5WXXs9JSVX4eo3YhfbS Copy to Clipboard
ImpHash f4701b864eddb48ab5f95477b57d06c2 Copy to Clipboard
Filename bs03u4lh.exe
File Size 693.00 KB
Sample Type Windows Exe (x86-32)

Analysis Information

Creation Time 2019-05-21 18:12 (UTC+2)
Analysis Duration 00:05:26
Number of Monitored Processes 3
Execution Successful True
Reputation Enabled True
WHOIS Enabled True
Local AV Enabled True
YARA Enabled True
Number of AV Matches 1
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".
     

     

    

   

   

    

     
      

       
       
       
       
      

     
     
     
    

   

  

  

   

    
    

     Screenshot
    

    

     Expand-Icon
    

    

     Exit-Icon
    

   

   

    

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