Resubmissions

06-06-2023 11:47

230606-nx186sde43 10

06-06-2023 11:44

230606-nwfabaea4w 1

General

  • Target

    test.txt

  • Size

    213.9MB

  • Sample

    230606-nx186sde43

  • MD5

    d228147a898f6f505e0895a12366ee2e

  • SHA1

    cdc145e02449417197398d302250f6e47b0642fb

  • SHA256

    1dd8c9e3381dc8993b63f7ef941973e310c5eaea17aae95e4522a0d45ae30bab

  • SHA512

    8ea21b8488e4674cae1e4fdba540da6a72ad0601a5da1d77bd5a8c6c90c333feff2a7adc614fc0680416c101e0483d882be52cfdf29291c65db1c635ae0c5439

  • SSDEEP

    3072:L4JJJJJJJJJJJJJJJJJJJJJE4JJJJJJJJJJJJJJJJJJJJJY4JJJJJJJJJJJJJJJ6:j

Malware Config

Extracted

Path

C:\Users\Admin\Downloads\@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: 13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94 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

13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94

Targets

    • Target

      test.txt

    • Size

      213.9MB

    • MD5

      d228147a898f6f505e0895a12366ee2e

    • SHA1

      cdc145e02449417197398d302250f6e47b0642fb

    • SHA256

      1dd8c9e3381dc8993b63f7ef941973e310c5eaea17aae95e4522a0d45ae30bab

    • SHA512

      8ea21b8488e4674cae1e4fdba540da6a72ad0601a5da1d77bd5a8c6c90c333feff2a7adc614fc0680416c101e0483d882be52cfdf29291c65db1c635ae0c5439

    • SSDEEP

      3072:L4JJJJJJJJJJJJJJJJJJJJJE4JJJJJJJJJJJJJJJJJJJJJY4JJJJJJJJJJJJJJJ6:j

    • Wannacry

      WannaCry is a ransomware cryptoworm.

    • Downloads MZ/PE file

    • Modifies file permissions

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Legitimate hosting services abused for malware hosting/C2

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Hidden Files and Directories

1
T1158

Defense Evasion

File Permissions Modification

1
T1222

Modify Registry

1
T1112

Hidden Files and Directories

1
T1158

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Command and Control

Web Service

1
T1102

Tasks