General

  • Target

    8452f9b899df6f5e6170738a1249551e7288af58bfccba239ddee41a3a629691N.exe

  • Size

    695KB

  • Sample

    241226-1tstvasldn

  • MD5

    999d1f23a3d2e1ba0668b7ed3317af30

  • SHA1

    cc783775f56876c2b1af82f942fc3f3f4ed6ab37

  • SHA256

    8452f9b899df6f5e6170738a1249551e7288af58bfccba239ddee41a3a629691

  • SHA512

    53b9de37d9083e21ab5fb2ba5b8e57e1a62c7a31863507d356cd9ef98163279b26939562fb338b5709c44e1f3db1d5dcf66af8656b8b5b73db7be2d310a64cf9

  • SSDEEP

    12288:38ffVfT7CXB5JOJRH0LflFV0jXtYLYL7fhImKBZmjSLiA3DtrFFk3:381ve5Je0zlFctZ/fVKBIjDATRk3

Malware Config

Extracted

Family

djvu

C2

http://cajgtus.com/test1/get.php

Attributes
  • extension

    .held

  • offline_id

    vyhLHcV0DMKjS0CgDoJGF0yJ299laBK7lZQM9Tt1

  • payload_url

  • ransomnote

    ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. Do not ask assistants from youtube and recovery data sites for help in recovering your data. They can use your free decryption quota and scam you. Our contact is emails in this text document only. You can get and look video overview decrypt tool. Price of private key and decrypt software is $999. Discount 50% available if you contact us first 72 hours, that's price for you is $499. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0879held

rsa_pubkey.plain

Targets

    • Target

      8452f9b899df6f5e6170738a1249551e7288af58bfccba239ddee41a3a629691N.exe

    • Size

      695KB

    • MD5

      999d1f23a3d2e1ba0668b7ed3317af30

    • SHA1

      cc783775f56876c2b1af82f942fc3f3f4ed6ab37

    • SHA256

      8452f9b899df6f5e6170738a1249551e7288af58bfccba239ddee41a3a629691

    • SHA512

      53b9de37d9083e21ab5fb2ba5b8e57e1a62c7a31863507d356cd9ef98163279b26939562fb338b5709c44e1f3db1d5dcf66af8656b8b5b73db7be2d310a64cf9

    • SSDEEP

      12288:38ffVfT7CXB5JOJRH0LflFV0jXtYLYL7fhImKBZmjSLiA3DtrFFk3:381ve5Je0zlFctZ/fVKBIjDATRk3

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Djvu family

    • Checks computer location settings

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

    • Modifies file permissions

    • Adds Run key to start application

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks