General

  • Target

    1fdfa298269a126db6b1c849f5eff4b6c68514adc80d487e3c45ffdd4e9eb16b

  • Size

    727KB

  • Sample

    220424-xrjxdahgf3

  • MD5

    d67643da0a32e3e03ff23a8001fae217

  • SHA1

    a7fde80251bdd4c4f7f001f66fa2e8a1a4277183

  • SHA256

    1fdfa298269a126db6b1c849f5eff4b6c68514adc80d487e3c45ffdd4e9eb16b

  • SHA512

    62f04a71e44c0399c802eaf33b9b0399c585080d309ecc1e882c27099f6a6ab2c9bd6d61e4f3943d196795856f966e6b95e57251324d3cbf70d8b2a597d65b2b

Malware Config

Extracted

Family

djvu

C2

http://fuyt.org/test1/get.php

Attributes
  • extension

    .msjd

  • offline_id

    Xe4NOamOTHZrARTiL9dfVzAylFrEWLGGbr2dngt1

  • payload_url

    http://zerit.top/dl/build2.exe

    http://fuyt.org/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://we.tl/t-FT7BNVbXC9 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: 0455JIjdm

rsa_pubkey.plain

Extracted

Family

vidar

Version

51.8

Botnet

517

C2

https://t.me/mm20220428

https://koyu.space/@ronxik123

Attributes
  • profile_id

    517

Targets

    • Target

      1fdfa298269a126db6b1c849f5eff4b6c68514adc80d487e3c45ffdd4e9eb16b

    • Size

      727KB

    • MD5

      d67643da0a32e3e03ff23a8001fae217

    • SHA1

      a7fde80251bdd4c4f7f001f66fa2e8a1a4277183

    • SHA256

      1fdfa298269a126db6b1c849f5eff4b6c68514adc80d487e3c45ffdd4e9eb16b

    • SHA512

      62f04a71e44c0399c802eaf33b9b0399c585080d309ecc1e882c27099f6a6ab2c9bd6d61e4f3943d196795856f966e6b95e57251324d3cbf70d8b2a597d65b2b

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar Stealer

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • 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 v6

Tasks