Overview

overview

10

Static

static

3

file.exe

windows7-x64

10

file.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    file.exe

  • Size

    785KB

  • Sample

    231123-ry5jrsac92

  • MD5

    4ed704febaafefe33af1d3b4b994ec46

  • SHA1

    488b034dbdda0197f0fa95ebfbb3eb9ff9652ecb

  • SHA256

    7a73364757e45002142e0cd2ae8a5541caf371027239afadae565e852f0bb026

  • SHA512

    120c180bfcd2072613bf6bfb285468b6e7c887fab3ad81b7fd5b2a98303cd4c7186cee931f22861a2e81f854622a93a4e64ed69f15dfaf4a8db8f781929b4f82

  • SSDEEP

    12288:MNGs/DUwn7d56lXCxOI5BzH4aBvBCwLuSdP2mkI/8fRKg5cDrDI0:WJnx2XsBjX4wLv3khQgaDrDI0

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/test2/get.php

Attributes
  • extension

    .gyza

  • offline_id

    nN1rRlTxKTPo66pmJEAHwufZ2Dhz4MsNxIlOk6t1

  • payload_url
  • 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-CDZ4hMgp2X 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: support@freshmail.top Reserve e-mail address to contact us: datarestorehelp@airmail.cc Your personal ID: 0828ASdw

rsa_pubkey.plain

Targets

    • Target

      file.exe

    • Size

      785KB

    • MD5

      4ed704febaafefe33af1d3b4b994ec46

    • SHA1

      488b034dbdda0197f0fa95ebfbb3eb9ff9652ecb

    • SHA256

      7a73364757e45002142e0cd2ae8a5541caf371027239afadae565e852f0bb026

    • SHA512

      120c180bfcd2072613bf6bfb285468b6e7c887fab3ad81b7fd5b2a98303cd4c7186cee931f22861a2e81f854622a93a4e64ed69f15dfaf4a8db8f781929b4f82

    • SSDEEP

      12288:MNGs/DUwn7d56lXCxOI5BzH4aBvBCwLuSdP2mkI/8fRKg5cDrDI0:WJnx2XsBjX4wLv3khQgaDrDI0

    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