Javascript Dropper #2 - Gandcrab Analysis | VTI
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VTI SCORE: 100/100
Target: win10_64 | windows_script_file
Classification: Dropper, Trojan, Downloader, Ransomware

e7851a1b3e93968e7f6b92a1a3f59d250402be15a5bcb3262acff1e0a27b912c (SHA256)

bill_87448680672-2706201981722018_4_23_b83d95.pdf.js

JScript

Created at 2018-05-07 10:12:00

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Notifications (1/1)

Some extracted files may be missing in the report since the maximum number of extracted files was reached during the analysis. You can increase the limit in the configuration settings.

Severity Category Operation Classification
5/5
Anti Analysis Tries to detect virtual machine -
  • Reads out system information, commonly used to detect VMs via registry. (Value "Identifier" in key "HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0").
    ...
5/5
File System Modifies application directory -
5/5
OS Modifies certificate store -
  • Adds a certificate to the local "my" crab-decrypt.txt list by file.
    ...
  • Adds a certificate to the local "my" certificate trust list by file.
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5/5
File System Creates an unusually large number of files -
5/5
File System Encrypts content of user files Ransomware
  • Encrypts the content of multiple user files. This is an indicator for ransomware.
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4/5
Persistence Installs system startup script or application -
  • Adds ""C:\Users\CIiHmnxMn6Ps\AppData\Roaming\Microsoft\nuatrx.exe"" to Windows startup via registry.
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4/5
File System Associated with malicious files Trojan
4/5
PE Executes dropped PE file -
2/5
Network Performs DNS request -
2/5
Network Checks external IP address -
  • Checks external IP by asking IP info service at "ipv4bot.whatismyipaddress.com/".
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2/5
Network Associated with known malicious/suspicious URLs -
  • URL "http://zet.ge/wp/wp-admin/images/5555.exe" is known as malicious URL.
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2/5
Network Downloads data Downloader
2/5
Network Connects to HTTP server -
2/5
PE Drops PE file Dropper
1/5
Process Creates system object -
  • Creates mutex with name "Global\pc_group=WORKGROUP&ransom_id=dce1bb8bd2ca4def".
    ...
1/5
Process Overwrites code -
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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