General

  • Target
    sample
  • Size 293KB
  • Sample260905-mxkqradc98
  • SHA256 1835cb8636b856b52ea71618551f1751e40bd7372a4cb50d221429c8f5104fd5
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Path
  • wannacry

Ransom Note
  • Q: What's wrong with my files? A: Ooops, your important files are encrypted. It means you will not be able to access them anymore until they are decrypted. If you follow our instructions, we guarantee that you can decrypt all your files quickly and safely! Let's start decrypting! Q: What do I do? A: First, you need to pay service fees for the decryption. Please send $300 worth of bitcoin to this bitcoin address: 13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94 Next, please find an application file named "@[email protected]". It is the decrypt software. Run and follow the instructions! (You may need to disable your antivirus for a while.) Q: How can I trust? A: Don't worry about decryption. We will decrypt your files surely because nobody will trust us if we cheat users. * If you need our assistance, send a message by clicking <Contact Us> on the decryptor window. �
Wallets
  • 13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94

Targets

    • Target
      sample
    • Size 293KB
    • SHA256 1835cb8636b856b52ea71618551f1751e40bd7372a4cb50d221429c8f5104fd5
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Family: Wannacry

      WannaCry is a ransomware cryptoworm.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Downloads MZ/PE file

    • Creates a file in the Startup directory

      A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Suricata alert: Tor Node X.509 Certificate Pattern Detected - Inbound

      Network activity triggered a Suricata alert

    • Adds Run key to start application

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • File and Directory Permissions Modification: Windows File and Directory Permissions Modification

    • Executes a VBScript file via the Windows Script Host.

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v16

Tasks