General

  • Target

    f3991c138aae20c9c8104b340a0a21628af7b432f95dc709dfe6812e6a35ef5e

  • Size

    733KB

  • Sample

    240530-3nk8xsfe64

  • MD5

    8ca4e6f32c4f0ca55963d2719ae94a1c

  • SHA1

    16487b0129fed84f05ad959f32f5ca1669f1d8b9

  • SHA256

    f3991c138aae20c9c8104b340a0a21628af7b432f95dc709dfe6812e6a35ef5e

  • SHA512

    6975fe9a36740c1edc711afb68463b77090e15305355a3e82861721ccdd440bfae29f03b9a5da8b82f5125075a73678a54c7f72408ea99db3d9b4699d64948bd

  • SSDEEP

    12288:Gl/6v07qke/ROYqGQslDPL9zEJ3YUCZfFlHpKDcCLVAtQQctFlD5r4:Glw7/8YpdbpzwgaT/rjO

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: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0871PsawqS

rsa_pubkey.plain

Targets

    • Target

      f3991c138aae20c9c8104b340a0a21628af7b432f95dc709dfe6812e6a35ef5e

    • Size

      733KB

    • MD5

      8ca4e6f32c4f0ca55963d2719ae94a1c

    • SHA1

      16487b0129fed84f05ad959f32f5ca1669f1d8b9

    • SHA256

      f3991c138aae20c9c8104b340a0a21628af7b432f95dc709dfe6812e6a35ef5e

    • SHA512

      6975fe9a36740c1edc711afb68463b77090e15305355a3e82861721ccdd440bfae29f03b9a5da8b82f5125075a73678a54c7f72408ea99db3d9b4699d64948bd

    • SSDEEP

      12288:Gl/6v07qke/ROYqGQslDPL9zEJ3YUCZfFlHpKDcCLVAtQQctFlD5r4:Glw7/8YpdbpzwgaT/rjO

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Modifies file permissions

    • Adds Run key to start application

    • 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

MITRE ATT&CK Matrix ATT&CK v13

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

Discovery

System Information Discovery

1
T1082

Tasks