General

  • Target

    file.exe

  • Size

    210KB

  • Sample

    221011-f8axcsgfdr

  • MD5

    6a121b6da5d39ffc34002822d1618577

  • SHA1

    a19a8676327b2e88482c9c5ec954ea0bf08209b9

  • SHA256

    75baf7c913ad0591151749df8feca137c34bbf8abc961e6dbb0efed3c5e85dd1

  • SHA512

    19ee4587de2bcf977e93779dd08f441cc9ded57ac176724c0d29f05cd18ac947fba19f3efd2cb8964e945b6405da4f8d2ac81e7820a06582a74fec2fab2aeb37

  • SSDEEP

    3072:ZqcODHjkCTLTDwTRFd4R0HeUcpUTaxCWTovP3e37atcNikGxlK8O:ZSgGLTDwqRQTeTovPIWeNpkl

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .towz

  • offline_id

    SSHsHMHGmSIhrz50VnIxLJJX15osxEQY6iXedXt1

  • payload_url

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

    http://winnlinne.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-Kbx8mJatqN 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: 0577Jhyjd

rsa_pubkey.plain

Extracted

Family

vidar

Version

54.9

Botnet

517

C2

https://t.me/larsenup

https://ioc.exchange/@zebra54

Attributes
  • profile_id

    517

Extracted

Family

redline

Botnet

buildnewdomain

C2

hrabrlonian.xyz:81

Attributes
  • auth_value

    90794203993789d187f29ff50d00de2e

Targets

    • Target

      file.exe

    • Size

      210KB

    • MD5

      6a121b6da5d39ffc34002822d1618577

    • SHA1

      a19a8676327b2e88482c9c5ec954ea0bf08209b9

    • SHA256

      75baf7c913ad0591151749df8feca137c34bbf8abc961e6dbb0efed3c5e85dd1

    • SHA512

      19ee4587de2bcf977e93779dd08f441cc9ded57ac176724c0d29f05cd18ac947fba19f3efd2cb8964e945b6405da4f8d2ac81e7820a06582a74fec2fab2aeb37

    • SSDEEP

      3072:ZqcODHjkCTLTDwTRFd4R0HeUcpUTaxCWTovP3e37atcNikGxlK8O:ZSgGLTDwqRQTeTovPIWeNpkl

    • 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.

    • 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.

    • 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