Overview

overview

10

Static

static

10

2026-03-16...rm.exe

windows10-2004-x64

10

2026-03-16...rm.exe

windows11-21h2-x64

10

Sharing

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General

  • Target
    2026-03-16_6f5f9e69b0fb9656466b9755ef03a98c_akira_alphv_blackcat_elex_glassworm
  • Size 2.9MB
  • Sample260316-b4477aaw2v
  • SHA256 f3dd302535e9e130596b8c877bb9593d59d7367f68041d8b4293374c1f215212
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
blackcatdiscoveryransomware

Malware Config

Extracted

Family

  • blackcat

Attributes
  • enable_network_discovery

    true

  • enable_self_propagation

    true

  • enable_set_wallpaper

    true

  • extension

    fs39zfd

  • note_file_name

    RECOVER-${EXTENSION}-FILES.txt

  • note_full_text

    >> What happened? Important files on your network was ENCRYPTED and now they have "${EXTENSION}" extension. In order to recover your files you need to follow instructions below. >> Sensitive Data Sensitive data on your network was DOWNLOADED. If you DON'T WANT your sensitive data to be PUBLISHED you have to act quickly. Data includes: - Employees personal data, CVs, DL, SSN. - Complete network map including credentials for local and remote services. - Private financial information including: clients data, bills, budgets, annual reports, bank statements. - Manufacturing documents including: datagrams, schemas, drawings in solidworks format - And more... >> CAUTION DO NOT MODIFY ENCRYPTED FILES YOURSELF. DO NOT USE THIRD PARTY SOFTWARE TO RESTORE YOUR DATA. YOU MAY DAMAGE YOUR FILES, IT WILL RESULT IN PERMANENT DATA LOSS. >> What should I do next? 1) Download and install Tor Browser from: https://torproject.org/ 2) Navigate to: http://5stt4xst5slblevblzpb5zudo6evjs7kdrudpzo5yofhsnmtv2cfoxqd.onion/?access-key=${ACCESS_KEY}

rsa_pubkey.plain

Targets

    • Target
      2026-03-16_6f5f9e69b0fb9656466b9755ef03a98c_akira_alphv_blackcat_elex_glassworm
    • Size 2.9MB
    • SHA256 f3dd302535e9e130596b8c877bb9593d59d7367f68041d8b4293374c1f215212
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    discoveryblackcatransomware

    • BlackCat

      A Rust-based ransomware sold as RaaS first seen in late 2021.

      ransomwareblackcat

    • Blackcat family

      blackcat

    • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)

    • Detects command variations typically used by ransomware

    • Detects executables containing commands for clearing Windows Event Logs

    • Detects executables containing many references to VEEAM. Observed in ransomware

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks