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General

  • Target

    6b58cc8a2e1e3de20f9451d6c479867b73abe225e1f375099e6d2a6d31197a2c

  • Size

    765KB

  • Sample

    231106-y4w8xaed41

  • MD5

    90c1665850554543a8474f5d23678fe8

  • SHA1

    b1beabd7836d777cc5b5c765da52ab2302fea4b9

  • SHA256

    6b58cc8a2e1e3de20f9451d6c479867b73abe225e1f375099e6d2a6d31197a2c

  • SHA512

    694e38791a7ced7afa8f0795f70e74d655020762b338857dbb1cb10a8b972284e33db7ede1bf5fb555dcf323263545b0da5d5c5df3b4154c34d8ada838069c3e

  • SSDEEP

    12288:tIX5F8XAm/bnG+5YuLiTfAW+0DnAgqeBiAwioHSMIKxiLoJ3KTkkP:ts8PCpCijAW+MAgqeBiARoxZykk

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/raud/get.php

Attributes
  • extension

    .yzoo

  • offline_id

    x2zqmFxw8ydx3wkiEeNayQ64Eyg2U5MS31sTegt1

  • payload_url

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

    http://zexeq.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. You can get and look video overview decrypt tool: https://go.wetransfer.com/t-Z4jZBpJ1EK Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. 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: 0820ASdw

rsa_pubkey.plain

Targets

    • Target

      6b58cc8a2e1e3de20f9451d6c479867b73abe225e1f375099e6d2a6d31197a2c

    • Size

      765KB

    • MD5

      90c1665850554543a8474f5d23678fe8

    • SHA1

      b1beabd7836d777cc5b5c765da52ab2302fea4b9

    • SHA256

      6b58cc8a2e1e3de20f9451d6c479867b73abe225e1f375099e6d2a6d31197a2c

    • SHA512

      694e38791a7ced7afa8f0795f70e74d655020762b338857dbb1cb10a8b972284e33db7ede1bf5fb555dcf323263545b0da5d5c5df3b4154c34d8ada838069c3e

    • SSDEEP

      12288:tIX5F8XAm/bnG+5YuLiTfAW+0DnAgqeBiAwioHSMIKxiLoJ3KTkkP:ts8PCpCijAW+MAgqeBiARoxZykk

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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 Enterprise v15

Tasks