Overview

overview

10

Static

static

3

cryptolaemus

windows10-2004-x64

10

cryptolaemus

windows11-21h2-x64

10

Sharing

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General

  • Target

    0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb

  • Size

    711KB

  • Sample

    240523-dc4tfsbc7t

  • MD5

    2fe74589699ad8b98b23c473414a5c6a

  • SHA1

    84b1ab6c53ce76ca7c8710a3fc943f12c260adaa

  • SHA256

    0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb

  • SHA512

    2a473345343ee3869687cdde79921f9c6c9300d65e14056ad63788dd2459883c65ada384d15f6cc66ff09763ac52703314efba8175acba90ba0f8623be5350b5

  • SSDEEP

    12288:Q972r9a2oBGCKmQltAg2toQoB4YfxKogqv5MuY:Q9KrDmQDAghxKov5Z

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

http://cajgtus.com/test1/get.php

Attributes
  • extension

    .vepi

  • offline_id

    EGfa5svnSGFJka7LZBQoqff0QtO1IpTauoDvGvt1

  • payload_url

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

    http://cajgtus.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. Do not ask assistants from youtube and recovery data sites for help in recovering your data. They can use your free decryption quota and scam you. Our contact is emails in this text document only. You can get and look video overview decrypt tool: https://wetransfer.com/downloads/33b490a613f49fa190924f199d2c079e20240512191214/caaf73 Price of private key and decrypt software is $999. Discount 50% available if you contact us first 72 hours, that's price for you is $499. 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@freshingmail.top Reserve e-mail address to contact us: datarestorehelpyou@airmail.cc Your personal ID: 0871PsawqS

rsa_pubkey.plain

Targets

    • Target

      0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb

    • Size

      711KB

    • MD5

      2fe74589699ad8b98b23c473414a5c6a

    • SHA1

      84b1ab6c53ce76ca7c8710a3fc943f12c260adaa

    • SHA256

      0f5bae947e7f1d88edbea521ebd44f9712a4cd63176b79258816d4135fae48fb

    • SHA512

      2a473345343ee3869687cdde79921f9c6c9300d65e14056ad63788dd2459883c65ada384d15f6cc66ff09763ac52703314efba8175acba90ba0f8623be5350b5

    • SSDEEP

      12288:Q972r9a2oBGCKmQltAg2toQoB4YfxKogqv5MuY:Q9KrDmQDAghxKov5Z

    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