Overview

overview

10

Static

static

3

opgdt.exe

windows7-x64

10

opgdt.exe

windows10-2004-x64

10

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General

  • Target

    opgdt.exe

  • Size

    736KB

  • Sample

    240907-gffsksxhjh

  • MD5

    664de3b2a24525498193312ba05bbd59

  • SHA1

    6aec18d934495a68b8a3fbee3ac6e4d0a44f0400

  • SHA256

    f23c7c958001a1eb56b4f4fee91d024f22eed3a3fd88a59eefff09a677ad7478

  • SHA512

    2967289dc6eaa0673ee71718e3493cd36f4a27f9d1edbb68bf6d0cdc66c9373fea9b1bed1f1238013f064d4901666fb535deb84e541875a58d0cb07dd256177f

  • SSDEEP

    12288:xIq8+GU7BALLZq4ah/h+c+s9k0vI50mJqLGiPMDoEA/7LCy2inm:xIqlhGFq4ahJ+cd9k0vI50mJiDYoJjLC

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/raud/get.php

Attributes
  • extension

    .coza

  • offline_id

    O8Ao46dcCReRPC4I1PGMYsRFFc9WI5eOp0O3MFt1

  • payload_url

    http://colisumy.com/dl/build2.exe

    http://zexeq.com/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-EPBZCVAS8s 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: 0693JOsie

rsa_pubkey.plain

Targets

    • Target

      opgdt.exe

    • Size

      736KB

    • MD5

      664de3b2a24525498193312ba05bbd59

    • SHA1

      6aec18d934495a68b8a3fbee3ac6e4d0a44f0400

    • SHA256

      f23c7c958001a1eb56b4f4fee91d024f22eed3a3fd88a59eefff09a677ad7478

    • SHA512

      2967289dc6eaa0673ee71718e3493cd36f4a27f9d1edbb68bf6d0cdc66c9373fea9b1bed1f1238013f064d4901666fb535deb84e541875a58d0cb07dd256177f

    • SSDEEP

      12288:xIq8+GU7BALLZq4ah/h+c+s9k0vI50mJqLGiPMDoEA/7LCy2inm:xIqlhGFq4ahJ+cd9k0vI50mJiDYoJjLC

    Score
    10/10
    djvudiscoverypersistenceransomware

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

      ransomwaredjvu

    • Checks computer location settings

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

    • Modifies file permissions

      discovery

    • Adds Run key to start application

      persistence

    • 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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks