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General

  • Target

    b5c2b381305b21be548d0123d9b4f44c101f324c1e0a6a3360ddaec4935de4f9

  • Size

    212KB

  • Sample

    221011-avm2wafhhk

  • MD5

    e5cd16545fe8d04faa7e7793e42df55d

  • SHA1

    a9a297b8d843c9e742fd05708f20d51d7540a101

  • SHA256

    b5c2b381305b21be548d0123d9b4f44c101f324c1e0a6a3360ddaec4935de4f9

  • SHA512

    bdd802cbb218eea6e1bd7be779b8aa1755d81be0c196d1568a32b07e51fe6400b4c36d41e8170c3412f4f9a25a0dbb4ac001ed5741b3b575250c2a8f29309b1e

  • SSDEEP

    6144:rdXc8LdksBzxz7uvgwc5zPViWNFdw6pu:rdXc8bB9WvpcBNHtvpu

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

      b5c2b381305b21be548d0123d9b4f44c101f324c1e0a6a3360ddaec4935de4f9

    • Size

      212KB

    • MD5

      e5cd16545fe8d04faa7e7793e42df55d

    • SHA1

      a9a297b8d843c9e742fd05708f20d51d7540a101

    • SHA256

      b5c2b381305b21be548d0123d9b4f44c101f324c1e0a6a3360ddaec4935de4f9

    • SHA512

      bdd802cbb218eea6e1bd7be779b8aa1755d81be0c196d1568a32b07e51fe6400b4c36d41e8170c3412f4f9a25a0dbb4ac001ed5741b3b575250c2a8f29309b1e

    • SSDEEP

      6144:rdXc8LdksBzxz7uvgwc5zPViWNFdw6pu:rdXc8bB9WvpcBNHtvpu

    • 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

    • Deletes itself

    • 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