Overview

overview

10

Static

static

3

62623bddab...46.exe

windows7-x64

10

62623bddab...46.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    62623bddab0911eca4cd33135383761dbcf6f22a480eda9761becf638f1c4546.exe

  • Size

    762KB

  • Sample

    240425-bytt9sch75

  • MD5

    f3ad3e0f90adfd9a28dbeab4bc6196ef

  • SHA1

    5b699f023304e78d905345b254ebc608a4726721

  • SHA256

    62623bddab0911eca4cd33135383761dbcf6f22a480eda9761becf638f1c4546

  • SHA512

    1a81ab93e0045be0408bfa5f18095df63e7a504d5258e34f37b1a1a2357aee955918e7852d70c0b269425a15661656cc71fcb4944d4546eb87893974b3f39349

  • SSDEEP

    12288:O53AxLUl6AiI6LWr0A91IaNnrC0RAbRXouUUfXZLCdSZSoHfx1uDbccdt7Hw:OAHuRr0U1IF1RXd9fQGSoHfGncit7Q

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

      62623bddab0911eca4cd33135383761dbcf6f22a480eda9761becf638f1c4546.exe

    • Size

      762KB

    • MD5

      f3ad3e0f90adfd9a28dbeab4bc6196ef

    • SHA1

      5b699f023304e78d905345b254ebc608a4726721

    • SHA256

      62623bddab0911eca4cd33135383761dbcf6f22a480eda9761becf638f1c4546

    • SHA512

      1a81ab93e0045be0408bfa5f18095df63e7a504d5258e34f37b1a1a2357aee955918e7852d70c0b269425a15661656cc71fcb4944d4546eb87893974b3f39349

    • SSDEEP

      12288:O53AxLUl6AiI6LWr0A91IaNnrC0RAbRXouUUfXZLCdSZSoHfx1uDbccdt7Hw:OAHuRr0U1IF1RXd9fQGSoHfGncit7Q

    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