General

  • Target

    548d6c23c982b400d024d99ff64fd684a4ca592e6f6d177ddb1992594cbc6282

  • Size

    666KB

  • Sample

    221126-eefp3sde6s

  • MD5

    5bb139dff54a909efc50ede9269cbf97

  • SHA1

    5b3897979ac24fdb175f12bc8bce4e43db5dd232

  • SHA256

    548d6c23c982b400d024d99ff64fd684a4ca592e6f6d177ddb1992594cbc6282

  • SHA512

    fcc6242cea70cc24ac06da204e6fedbb415339811b2f8d0720eadef6e5008db267bf4b806c135dbebee81f9bb255338c55b88e10da9051ce1ebef000f60b1fca

  • SSDEEP

    12288:PzpXk/Z7VvB2+tbnuGsklPnetWOhWvqttQWGGhC62pBM7:bpXq5pnp5lPpJqtA

Malware Config

Extracted

Family

djvu

C2

http://fresherlights.com/test1/get.php

Attributes
  • extension

    .kcvp

  • offline_id

    hlqzhQ6w5SquNDF4Ul2XBDJQkSIKbAT6rmRBTit1

  • payload_url

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

    http://fresherlights.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://we.tl/t-lj5qINGbTc 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: 0607Jhyjd

rsa_pubkey.plain

Targets

    • Target

      548d6c23c982b400d024d99ff64fd684a4ca592e6f6d177ddb1992594cbc6282

    • Size

      666KB

    • MD5

      5bb139dff54a909efc50ede9269cbf97

    • SHA1

      5b3897979ac24fdb175f12bc8bce4e43db5dd232

    • SHA256

      548d6c23c982b400d024d99ff64fd684a4ca592e6f6d177ddb1992594cbc6282

    • SHA512

      fcc6242cea70cc24ac06da204e6fedbb415339811b2f8d0720eadef6e5008db267bf4b806c135dbebee81f9bb255338c55b88e10da9051ce1ebef000f60b1fca

    • SSDEEP

      12288:PzpXk/Z7VvB2+tbnuGsklPnetWOhWvqttQWGGhC62pBM7:bpXq5pnp5lPpJqtA

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Executes dropped EXE

    • 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 Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

File Permissions Modification

1
T1222

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Tasks