General

  • Target

    857fc5f14aa1bc9718f78b8f49fbed6e784db2628d40164b8efee7e68658f7fc

  • Size

    769KB

  • Sample

    220915-lprnnagcer

  • MD5

    12ad35aac08ecd2a9a895b07371a7af3

  • SHA1

    fbce08b7abaa1372a1ae47bc8a1a730e5edc4520

  • SHA256

    857fc5f14aa1bc9718f78b8f49fbed6e784db2628d40164b8efee7e68658f7fc

  • SHA512

    a0c34bff22d47082ef0d88b8ee234b4e12966df7afcfea9d6e8f9b5f395eb477c5392fa0e0d042e869ae7571c9951d95661b4b84b1eac473290aa950d82bf58e

  • SSDEEP

    24576:P90258FhHIkqJafcJuSJctAb4dcVPDJAnOwu8Kij:P4IUXCjFG

Malware Config

Extracted

Family

djvu

C2

http://acacaca.org/test1/get.php

Attributes
  • extension

    .eewt

  • offline_id

    5IVlpkccZlJz0AZ5atgGWVKe9CGAnXjohDf40mt1

  • 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-0e5rCKsYCc 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: 0558Jhyjd

rsa_pubkey.plain

Targets

    • Target

      857fc5f14aa1bc9718f78b8f49fbed6e784db2628d40164b8efee7e68658f7fc

    • Size

      769KB

    • MD5

      12ad35aac08ecd2a9a895b07371a7af3

    • SHA1

      fbce08b7abaa1372a1ae47bc8a1a730e5edc4520

    • SHA256

      857fc5f14aa1bc9718f78b8f49fbed6e784db2628d40164b8efee7e68658f7fc

    • SHA512

      a0c34bff22d47082ef0d88b8ee234b4e12966df7afcfea9d6e8f9b5f395eb477c5392fa0e0d042e869ae7571c9951d95661b4b84b1eac473290aa950d82bf58e

    • SSDEEP

      24576:P90258FhHIkqJafcJuSJctAb4dcVPDJAnOwu8Kij:P4IUXCjFG

    • 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