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General

  • Target

    file.exe

  • Size

    285KB

  • Sample

    221105-rb4zqagah8

  • MD5

    6843c59f36049c4995bb8b8d7388c480

  • SHA1

    cb3b694e40d18c5e38826d53fb67cfb89f4954ec

  • SHA256

    ed1ac43c1959cf965024bab1d57a1ed1e14170256f003cc91ead9c5c76e09a6a

  • SHA512

    30b5db941dc8faeb38aa6d6352fddecc97c50bebdc2c94de7a7d2da09ba2aa3685138d99e1615fa05acbb5d9e1f3b3de8b20cd41d2cca004448da42f3cc943ca

  • SSDEEP

    3072:121qhc9ggkLf5qyrHtxlV057l8xHMVDO3sH8Dmb2AwsZGbeSxTR3HuVUs:41qqkkeNxlA7wHOO3CqS2AwsE3Oys

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .zate

  • offline_id

    VW11mMMPfxPTr0epvPSw1m6GBzcKFb3H2Lm2nyt1

  • 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-XIH9asXhHQ 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: 0600Jhyjd

rsa_pubkey.plain

Extracted

Family

redline

Botnet

Mast1000

C2

78.153.144.3:2510

Attributes
  • auth_value

    8e868b09fa3921a313a9a4fa08602f0a

Targets

    • Target

      file.exe

    • Size

      285KB

    • MD5

      6843c59f36049c4995bb8b8d7388c480

    • SHA1

      cb3b694e40d18c5e38826d53fb67cfb89f4954ec

    • SHA256

      ed1ac43c1959cf965024bab1d57a1ed1e14170256f003cc91ead9c5c76e09a6a

    • SHA512

      30b5db941dc8faeb38aa6d6352fddecc97c50bebdc2c94de7a7d2da09ba2aa3685138d99e1615fa05acbb5d9e1f3b3de8b20cd41d2cca004448da42f3cc943ca

    • SSDEEP

      3072:121qhc9ggkLf5qyrHtxlV057l8xHMVDO3sH8Dmb2AwsZGbeSxTR3HuVUs:41qqkkeNxlA7wHOO3CqS2AwsE3Oys

    • Detected Djvu ransomware

    • Detects Smokeloader packer

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine payload

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Blocklisted process makes network request

    • 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 Microsoft Outlook profiles

    • 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