General

  • Target

    4dea91eef9a1ee54886420c4d91c76e77dfba08da884d4563b4799ea5b617b25

  • Size

    726KB

  • Sample

    220920-re3aasdca5

  • MD5

    7d7c4b68da55015e049a3220746daa31

  • SHA1

    fc12c27f86a47b3828a53a2fb2c30d9319e3aa63

  • SHA256

    4dea91eef9a1ee54886420c4d91c76e77dfba08da884d4563b4799ea5b617b25

  • SHA512

    20d0f0824a9615d28f8a529bb705554ac803574894e16c006e7d4111a6c4aade1aed0d36b5269e88c7b768299f1bf27af98cf54d27af94f5657a570bf0bae3d2

  • SSDEEP

    12288:ksyJ3+nvBRjBfavh0EoS/FS8hRbzm+ZXWeoMz2zDt2O9KbP:ksyJ6Bvfavh0vGS6JzfNWkq5pKb

Malware Config

Extracted

Family

djvu

C2

http://acacaca.org/test3/get.php

Attributes
  • extension

    .mmvb

  • offline_id

    yd6oYv6aBN90yFzTWdZ34sXSXtXiauzOLXZyWht1

  • payload_url

    http://rgyui.top/dl/build2.exe

    http://acacaca.org/files/1/build3.exe

  • 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. You can get and look video overview decrypt tool: https://we.tl/t-xuPJqoyzQE Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. 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: 0556Jhyjd

rsa_pubkey.plain

Targets

    • Target

      4dea91eef9a1ee54886420c4d91c76e77dfba08da884d4563b4799ea5b617b25

    • Size

      726KB

    • MD5

      7d7c4b68da55015e049a3220746daa31

    • SHA1

      fc12c27f86a47b3828a53a2fb2c30d9319e3aa63

    • SHA256

      4dea91eef9a1ee54886420c4d91c76e77dfba08da884d4563b4799ea5b617b25

    • SHA512

      20d0f0824a9615d28f8a529bb705554ac803574894e16c006e7d4111a6c4aade1aed0d36b5269e88c7b768299f1bf27af98cf54d27af94f5657a570bf0bae3d2

    • SSDEEP

      12288:ksyJ3+nvBRjBfavh0EoS/FS8hRbzm+ZXWeoMz2zDt2O9KbP:ksyJ6Bvfavh0vGS6JzfNWkq5pKb

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Downloads MZ/PE file

    • Executes dropped EXE

    • 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.

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • 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 v6

Tasks