Overview

overview

10

Static

static

3

c5948bebd4...1c.exe

windows7-x64

10

c5948bebd4...1c.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    c5948bebd4c5c5042e50b784bc66b1b2d28e721a4e506eaefbb909cec9c7621c

  • Size

    960KB

  • Sample

    240531-lja4qade6z

  • MD5

    25a8cb492dcea511e325ce5a9d0b112e

  • SHA1

    86c0ee9d2a503c0f649ea0f6623f2d6b5d0926df

  • SHA256

    c5948bebd4c5c5042e50b784bc66b1b2d28e721a4e506eaefbb909cec9c7621c

  • SHA512

    414418cd33d80c220ecdf7d1b9cf6765b954a4c942210018b36a4935695845e38639490878784c8b69e4e43ae01badc086a7039cebe32f6f1a79fa992c00cae3

  • SSDEEP

    24576:9pCOEyJiS2ec8RFVwT2Su4uNorj8pXhJko5:9ATec8RFGQbNQahJj5

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .wwza

  • offline_id

    LtYnlJvK0hICyOCeum6Tv4pbia9jcIGHVgA3Xht1

  • 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-xoUXGr6cqT 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: 0789JOsie

rsa_pubkey.plain

Targets

    • Target

      c5948bebd4c5c5042e50b784bc66b1b2d28e721a4e506eaefbb909cec9c7621c

    • Size

      960KB

    • MD5

      25a8cb492dcea511e325ce5a9d0b112e

    • SHA1

      86c0ee9d2a503c0f649ea0f6623f2d6b5d0926df

    • SHA256

      c5948bebd4c5c5042e50b784bc66b1b2d28e721a4e506eaefbb909cec9c7621c

    • SHA512

      414418cd33d80c220ecdf7d1b9cf6765b954a4c942210018b36a4935695845e38639490878784c8b69e4e43ae01badc086a7039cebe32f6f1a79fa992c00cae3

    • SSDEEP

      24576:9pCOEyJiS2ec8RFVwT2Su4uNorj8pXhJko5:9ATec8RFGQbNQahJj5

    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 Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

File and Directory Permissions Modification

1
T1222

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks