Overview

overview

10

Static

static

3

cryptolaemus

windows10-2004-x64

10

cryptolaemus

windows11-21h2-x64

10

Sharing

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General

  • Target

    ba30d08ffe01b65e0194b42a9b52a81e541bc63b456d5d2776ea7d2b6cc22dc2

  • Size

    805KB

  • Sample

    240426-qfpj6ada6v

  • MD5

    e7169badb246f0c7821572a5c8f18302

  • SHA1

    67788e5504a4ef85478e65fb46c3217476f01913

  • SHA256

    ba30d08ffe01b65e0194b42a9b52a81e541bc63b456d5d2776ea7d2b6cc22dc2

  • SHA512

    81242478966ccf369d1ec36a83cfcc034ca6ead312ba287a51d6649600ffe71ab1a321c4d994d3e904dfc1602c35bdb2767bb3d2df307c1c7329f723f2b31d41

  • SSDEEP

    24576:TlfPirHYSExyxBLC6qFXItFvVTcNoF0TpB:BfwHYdAC1XItFdKW0NB

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .bgjs

  • offline_id

    Z6iwSvCoAt8T8K2ROxecuXHPNHv7eDyWrc8Ks7t1

  • 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/54cdfd152fe98eedb628a1f4ddb7076420240421150208/403a27 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: 0863PsawqS

rsa_pubkey.plain

Targets

    • Target

      ba30d08ffe01b65e0194b42a9b52a81e541bc63b456d5d2776ea7d2b6cc22dc2

    • Size

      805KB

    • MD5

      e7169badb246f0c7821572a5c8f18302

    • SHA1

      67788e5504a4ef85478e65fb46c3217476f01913

    • SHA256

      ba30d08ffe01b65e0194b42a9b52a81e541bc63b456d5d2776ea7d2b6cc22dc2

    • SHA512

      81242478966ccf369d1ec36a83cfcc034ca6ead312ba287a51d6649600ffe71ab1a321c4d994d3e904dfc1602c35bdb2767bb3d2df307c1c7329f723f2b31d41

    • SSDEEP

      24576:TlfPirHYSExyxBLC6qFXItFvVTcNoF0TpB:BfwHYdAC1XItFdKW0NB

    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