General

  • Target

    2c5779a71854d22c35fff2a8ee080c09.exe

  • Size

    188KB

  • Sample

    221125-jkt7wafb9x

  • MD5

    2c5779a71854d22c35fff2a8ee080c09

  • SHA1

    e298451214511728866814fa03fa944d54eaab6d

  • SHA256

    5b170fbc0ef97dcda6c73a909db99f0b68bcf82413d3b700d84b4186a86611ce

  • SHA512

    fc20055dfbf3ae74ceae313284257418ffd870af68539ab4437290bee1b4514b3aa6be30fb54788121e47c7419bd36814fcc07a71e6a313b32bbf81585b8294a

  • SSDEEP

    3072:4K9FUcgvEJYzsduzL/gSAMSHG5KaLgvWHJPKXRPH4BvP:jFuzzL/vAv7aXHJgBH4

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .tcbu

  • offline_id

    JBPpFMvWlKMsKlJRmPJl5e09RSnYrRJya1oX8xt1

  • 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-bpYXr2m3kI 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: 0606Jhyjd

rsa_pubkey.plain

Targets

    • Target

      2c5779a71854d22c35fff2a8ee080c09.exe

    • Size

      188KB

    • MD5

      2c5779a71854d22c35fff2a8ee080c09

    • SHA1

      e298451214511728866814fa03fa944d54eaab6d

    • SHA256

      5b170fbc0ef97dcda6c73a909db99f0b68bcf82413d3b700d84b4186a86611ce

    • SHA512

      fc20055dfbf3ae74ceae313284257418ffd870af68539ab4437290bee1b4514b3aa6be30fb54788121e47c7419bd36814fcc07a71e6a313b32bbf81585b8294a

    • SSDEEP

      3072:4K9FUcgvEJYzsduzL/gSAMSHG5KaLgvWHJPKXRPH4BvP:jFuzzL/vAv7aXHJgBH4

    • Detected Djvu ransomware

    • Detects Smokeloader packer

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • 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

    • Accesses Microsoft Outlook profiles

    • 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 v6

Tasks