General

  • Target

    Main.exe

  • Size

    7.5MB

  • Sample

    241005-bk6a5swhqn

  • MD5

    3eb46bea293af2205928a34ddb51b8ec

  • SHA1

    7d63680f3d927990eac32daa58d2bfabb1aacb7e

  • SHA256

    6bfc6829a6c86f6ba652b97df5a9772e5d4c3f08a011f0553f229a2e7467f500

  • SHA512

    89a5d7d2e066c7b46827272720a3f5cbe20a9fbee0cf6ee0780c1f09594e6a3b6f8b805b2411381e142321dca12170d51939d4a3b490b46a7ebd940c8bfb1a15

  • SSDEEP

    196608:SgjXSqrf6UkWhJxe6YsdQL/neQ+gKeC3bc1I05O:ljFrfiWxtYsdQL/ejLe5

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\Temp1_Ransomware.WannaCry.zip\@[email protected]

Family

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

      Main.exe

    • Size

      7.5MB

    • MD5

      3eb46bea293af2205928a34ddb51b8ec

    • SHA1

      7d63680f3d927990eac32daa58d2bfabb1aacb7e

    • SHA256

      6bfc6829a6c86f6ba652b97df5a9772e5d4c3f08a011f0553f229a2e7467f500

    • SHA512

      89a5d7d2e066c7b46827272720a3f5cbe20a9fbee0cf6ee0780c1f09594e6a3b6f8b805b2411381e142321dca12170d51939d4a3b490b46a7ebd940c8bfb1a15

    • SSDEEP

      196608:SgjXSqrf6UkWhJxe6YsdQL/neQ+gKeC3bc1I05O:ljFrfiWxtYsdQL/ejLe5

    • Wannacry

      WannaCry is a ransomware cryptoworm.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Adds Run key to start application

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

    • Legitimate hosting services abused for malware hosting/C2

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v15

Tasks