Overview

overview

10

Static

static

10

3a08e3bfec...df8ce1

ubuntu-18.04-amd64

9

Resubmissions

11-11-2022 05:27

221111-f5mfzsbddr 10

11-11-2022 05:26

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11-11-2022 05:23

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11-11-2022 01:46

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General

  • Target

    3a08e3bfec2db5dbece359ac9662e65361a8625a0122e68b56cd5ef3aedf8ce1.7z

  • Size

    647KB

  • Sample

    221111-f5mfzsbddr

  • MD5

    8721abd15a0ed9f1bb011eb22f6fdbc4

  • SHA1

    546f60c86e67aad5c8860c4c889265aa4bd5a811

  • SHA256

    690691d9e648f0a9cff8adc34b2abe0b816005ac5c57dc2f64a8355061457046

  • SHA512

    23faffa81dd380fa9349c35feaeb3b15c5000d65030096eacc6286f3295bfc16af11259bf56d1dc8122105e1ee1005521c7e6dd0f5a04e3a160edbb67b57eeb4

  • SSDEEP

    12288:liJQ+nWiZ5zRa4c+Q1glxEyAIUTkmFqAl501LNqLWsu6fIlqCdE:GWiVhiMKykT9F9l5qLN7sAqCu

Score
10/10
blackcatlinuxpersistence

Malware Config

Extracted

Family

blackcat

Attributes
  • enable_network_discovery

    true

  • enable_self_propagation

    true

  • enable_set_wallpaper

    true

  • extension

    nnvjxgy

  • note_file_name

    RECOVER-${EXTENSION}-FILES.txt

  • note_full_text

    >> What happened? Important files on your network was ENCRYPTED and now they have "${EXTENSION}" extension. In order to recover your files you need to follow instructions below. >> Sensitive Data Sensitive data on your system was DOWNLOADED. If you DON'T WANT your sensitive data to be PUBLISHED you have to act quickly. Data includes: - Employees personal data, CVs, DL, SSN. - Complete network map including credentials for local and remote services. - Private financial information including: clients data, bills, budgets, annual reports, bank statements. - Manufacturing documents including: datagrams, schemas, drawings in solidworks format - And more... >> CAUTION DO NOT MODIFY ENCRYPTED FILES YOURSELF. DO NOT USE THIRD PARTY SOFTWARE TO RESTORE YOUR DATA. YOU MAY DAMAGE YOUR FILES, IT WILL RESULT IN PERMANENT DATA LOSS. >> What should I do next? Follow these simple steps to get everything back to normal: 1) Download and install Tor Browser from: https://torproject.org/ 2) Navigate to: http://xqoykemmcivwtpxh3a6pu3w7sstr2y7hapxdiv4caaxidurmwwbjx2id.onion/?access-key=${ACCESS_KEY}

rsa_pubkey.plain

Targets

    • Target

      3a08e3bfec2db5dbece359ac9662e65361a8625a0122e68b56cd5ef3aedf8ce1

    • Size

      1.8MB

    • MD5

      92ed8739cfb9132c8b57016e3c071a28

    • SHA1

      362aa21546904629b28a56c9d5c4bfd3b53296f5

    • SHA256

      3a08e3bfec2db5dbece359ac9662e65361a8625a0122e68b56cd5ef3aedf8ce1

    • SHA512

      755cab9f92d9bb39b1afc890e6d220f1e9ff884bb5c9ab9a526dd7af204fa88c21d88fb2c153c28eb577a5730548dca3ad8ffa20d3b31ed3fb550fce98f7c3d3

    • SSDEEP

      49152:IqeL+lTdKGwpizjdRVdjezCFvw9b28vXUG3ao3tGbK:Iqe0/FdjezChlbK

    Score
    9/10
    persistence

    • Deletes system logs

    • Creates/modifies Cron job

      Cron allows running tasks on a schedule, and is commonly used for malware persistence.

      persistence

    • Modifies Bash startup script

      persistence

    • Reads CPU attributes

    • Enumerates kernel/hardware configuration

      Reads contents of /sys virtual filesystem to enumerate system information.

    • Reads runtime system information

      Reads data from /proc virtual filesystem.

    behavioral1

MITRE ATT&CK Enterprise v6

Tasks