Overview

overview

10

Static

static

3

sub_723d1cf3d74f.exe

windows10-2004-x64

10

sub_723d1cf3d74f.exe

windows11-21h2-x64

10

Sharing

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General

  • Target
    sub_723d1cf3d74f.bin
  • Size 1.4MB
  • Sample260524-b3dc3sd14k
  • SHA256 723d1cf3d74fb3ce95a77ed9dff257a78c8af8e67a82963230dd073781074224
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
blackbastadefense_evasiondiscoveryexecutionimpactpersistenceransomware

Malware Config

Extracted

Path

  • C:\Program Files (x86)\instructions_read_me.txt

  • blackbasta

Ransom Note
  • ATTENTION! Your network has been breached and all data was encrypted. Please contact us at: https://bastad5huzwkepdixedg2gekg7jk22ato24zyllp6lnjx7wdtyctgvyd.onion/ Login ID: 26d371a9-efda-4e82-9989-01e292244d65 *!* To access .onion websites download and install Tor Browser at: https://www.torproject.org/ (Tor Browser is not related to us) *!* To restore all your PCs and get your network working again, follow these instructions: - Any attempts to modify, decrypt or rename the files will lead to its fatal corruption. It doesn't matter, who are trying to do this, either it will be your IT guys or a recovery agency. Please follow these simple rules to avoid data corruption: - Do not modify, rename or delete files. Any attempts to modify, decrypt or rename the files will lead to its fatal corruption. - Do not hire a recovery company. They can't decrypt without the key. They also don't care about your business. They believe that they are good negotiators, but it is not. They usually fail. So speak for yourself. Waiting you in a chat.
URLs

  • https://bastad5huzwkepdixedg2gekg7jk22ato24zyllp6lnjx7wdtyctgvyd.onion/

Targets

    • Target
      sub_723d1cf3d74f.bin
    • Size 1.4MB
    • SHA256 723d1cf3d74fb3ce95a77ed9dff257a78c8af8e67a82963230dd073781074224
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    defense_evasiondiscoveryexecutionblackbastaimpactpersistenceransomware

    • Family: Black Basta

      A ransomware family targeting Windows and Linux ESXi first seen in February 2022.

      ransomwareblackbasta

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Renames multiple (3755) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks