Analysis

  • max time kernel
    132s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    28/03/2022, 06:22

General

  • Target
    eb3ab00a77c29d2846eebbb87f1837a48974d865e2d3bd0297c41c6cf118c741.exe
  • Size 758KB
  • Sample220328-g4xe8schdj
  • SHA256 eb3ab00a77c29d2846eebbb87f1837a48974d865e2d3bd0297c41c6cf118c741
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Extracted

Family
  • djvu

C2
  • http://fuyt.org/test1/get.php

Attributes
  • extension

    .wdlo

  • offline_id

    i0fXrUHVihm5xsI9Icg243YMPJqd748Ocimkyjt1

  • payload_url

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

    http://fuyt.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-0S984cQ4B3 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: 0430JIjdm

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 4 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eb3ab00a77c29d2846eebbb87f1837a48974d865e2d3bd0297c41c6cf118c741.exe
    "C:\Users\Admin\AppData\Local\Temp\eb3ab00a77c29d2846eebbb87f1837a48974d865e2d3bd0297c41c6cf118c741.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2564
    • C:\Users\Admin\AppData\Local\Temp\eb3ab00a77c29d2846eebbb87f1837a48974d865e2d3bd0297c41c6cf118c741.exe
      "C:\Users\Admin\AppData\Local\Temp\eb3ab00a77c29d2846eebbb87f1837a48974d865e2d3bd0297c41c6cf118c741.exe"
      2⤵
        PID:1224
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1224 -s 536
          3⤵
          • Program crash
          PID:4980
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1224 -ip 1224
      1⤵
        PID:4596

      Network

            MITRE ATT&CK Matrix

            Replay Monitor

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            Downloads

            memory/1224-131-0x0000000000400000-0x0000000000537000-memory.dmp

            memory/1224-132-0x0000000000400000-0x0000000000537000-memory.dmp

            memory/1224-135-0x0000000000400000-0x0000000000537000-memory.dmp

            memory/2564-133-0x0000000000682000-0x0000000000714000-memory.dmp

            memory/2564-134-0x0000000002260000-0x000000000237B000-memory.dmp