General

  • Target

    WannaCrypt0r.zip

  • Size

    3.3MB

  • Sample

    230123-tqrztaeb45

  • MD5

    e58fdd8b0ce47bcb8ffd89f4499d186d

  • SHA1

    b7e2334ac6e1ad75e3744661bb590a2d1da98b03

  • SHA256

    283f40e9d550833bec101a24fd6fd6fbd9937ed32a51392e818ffff662a1d30a

  • SHA512

    95b6567b373efa6aec6a9bfd7af70ded86f8c72d3e8ba75f756024817815b830f54d18143b0be6de335dd0ca0afe722f88a4684663be5a84946bd30343d43a8c

  • SSDEEP

    49152:0x8KJHkctwJdVlgBq+q1vqtWdhQIajy4AsOLgVv+L3QXz+B7m1qyapDgJmeiTLW:0x8KJX+dVHvtzaj3xWgw79icXW

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\@Please_Read_Me@.txt

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: 115p7UMMngoj1pMvkpHijcRdfJNXj6LrLn Next, please find an application file named "@WanaDecryptor@.exe". 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

115p7UMMngoj1pMvkpHijcRdfJNXj6LrLn

Targets

    • Target

      WannaCrypt0r.zip

    • Size

      3.3MB

    • MD5

      e58fdd8b0ce47bcb8ffd89f4499d186d

    • SHA1

      b7e2334ac6e1ad75e3744661bb590a2d1da98b03

    • SHA256

      283f40e9d550833bec101a24fd6fd6fbd9937ed32a51392e818ffff662a1d30a

    • SHA512

      95b6567b373efa6aec6a9bfd7af70ded86f8c72d3e8ba75f756024817815b830f54d18143b0be6de335dd0ca0afe722f88a4684663be5a84946bd30343d43a8c

    • SSDEEP

      49152:0x8KJHkctwJdVlgBq+q1vqtWdhQIajy4AsOLgVv+L3QXz+B7m1qyapDgJmeiTLW:0x8KJX+dVHvtzaj3xWgw79icXW

    • Wannacry

      WannaCry is a ransomware cryptoworm.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Executes dropped EXE

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • Deletes itself

    • Drops startup file

    • 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.

    • Adds Run key to start application

    • Sets desktop wallpaper using registry

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Hidden Files and Directories

1
T1158

Defense Evasion

File Deletion

2
T1107

File Permissions Modification

1
T1222

Modify Registry

3
T1112

Hidden Files and Directories

1
T1158

Credential Access

Credentials in Files

1
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Impact

Inhibit System Recovery

2
T1490

Defacement

1
T1491

Tasks