General

  • Target

    sample

  • Size

    15KB

  • Sample

    241024-12d1navgqq

  • MD5

    9f8c29bb7d9c814ddfbb37968e0d69bf

  • SHA1

    e3dc535a2e5b6432e9bca15fee41ddf541c13446

  • SHA256

    de804a3edfe3326cc0af190007f77cf6a4fd4dbddec0d7f60aac6d9ce57c32cb

  • SHA512

    ac2c53c01bbdfdca07db91016741f67f21fae7082162d1ff44c4e3706ebd6c095394ec3f418511068af21b4075cf3722b0d435cdb067e1edc130b14bd513e54e

  • SSDEEP

    384:umj9HlAALRcomwFfNmBSZv5HvvQ1TCuzMEMhHPIKlkT2zp59FqJPku7:dSu2VDkC

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: 12t9YDPgwueZ9NyMgw519p7AA8isjr6SMw 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

12t9YDPgwueZ9NyMgw519p7AA8isjr6SMw

Targets

    • Target

      sample

    • Size

      15KB

    • MD5

      9f8c29bb7d9c814ddfbb37968e0d69bf

    • SHA1

      e3dc535a2e5b6432e9bca15fee41ddf541c13446

    • SHA256

      de804a3edfe3326cc0af190007f77cf6a4fd4dbddec0d7f60aac6d9ce57c32cb

    • SHA512

      ac2c53c01bbdfdca07db91016741f67f21fae7082162d1ff44c4e3706ebd6c095394ec3f418511068af21b4075cf3722b0d435cdb067e1edc130b14bd513e54e

    • SSDEEP

      384:umj9HlAALRcomwFfNmBSZv5HvvQ1TCuzMEMhHPIKlkT2zp59FqJPku7:dSu2VDkC

    • Modifies WinLogon for persistence

    • UAC bypass

    • Wannacry

      WannaCry is a ransomware cryptoworm.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Disables RegEdit via registry modification

    • Downloads MZ/PE file

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

    • 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