General

  • Target

    file.exe

  • Size

    784KB

  • Sample

    240110-qsyctshca6

  • MD5

    e6f92be7f819410f58178b2a32c02ece

  • SHA1

    b019e06385f601bd88ff71a43ed274a8f46a354c

  • SHA256

    c9b54d5f8b3a9b1da0c9765305c3487351a8ac8f2c8683284ea632910e92e132

  • SHA512

    e06a7457d0ba3a24e83595674df30655ad1d8880980cb6f2df5b80d46a7fbece1ee08e5d74208e5e40e93852742e163f400db1ebecf13e94b2085c1b182e5c74

  • SSDEEP

    24576:3ISrb5ModOgj6b2D/qjyAxOw4klV0b3CMX1IG:xtMAj9XcFWx1

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .cdtt

  • offline_id

    Bn3q97hwLouKbhkQRNO4SeV07gjdEQVm8NKhg0t1

  • 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-FCWSCsjEWS Price of private key and decrypt software is $1999. Discount 50% available if you contact us first 72 hours, that's price for you is $999. 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: 0845OSkw

rsa_pubkey.plain

Targets

    • Target

      file.exe

    • Size

      784KB

    • MD5

      e6f92be7f819410f58178b2a32c02ece

    • SHA1

      b019e06385f601bd88ff71a43ed274a8f46a354c

    • SHA256

      c9b54d5f8b3a9b1da0c9765305c3487351a8ac8f2c8683284ea632910e92e132

    • SHA512

      e06a7457d0ba3a24e83595674df30655ad1d8880980cb6f2df5b80d46a7fbece1ee08e5d74208e5e40e93852742e163f400db1ebecf13e94b2085c1b182e5c74

    • SSDEEP

      24576:3ISrb5ModOgj6b2D/qjyAxOw4klV0b3CMX1IG:xtMAj9XcFWx1

    • 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