BlackCat | Niveau de menace: critical | Type: Ransomware

Identifiants cryptographiques

SHA256acf8884a4bfb9ebfe99ed607c4f1cf625cd705ac4317c092ef6dcca3d47027aa
MD5305de189e8a35d4b98d9d0f45d5a8648
Type de fichierexe
Taille3005.5 KB
Première observation2022-06-21
Nom du fichieracf8884a4bfb9ebfe99ed607c4f1cf625cd705ac4317c092ef6dcca3d47027aa
Étiquettesblackcat, BlackCat Indicators, exe

Famille de malware: BlackCat

BlackCat, Rust ransomware'dir.

TypeRansomware
Langage de programmationRust
Plateforme cibleWindows/Linux
Protocole C2
ObjectifRansomware
Année de première observation2021
Autres nomsALPHV

Indicateurs de menace (IOC)

  • SHA256: acf8884a4bfb9ebfe99ed607c4f1cf625cd705ac4317c092ef6dcca3d47027aa
  • MD5: 305de189e8a35d4b98d9d0f45d5a8648

Vous pouvez vérifier toutes les valeurs de hachage de cet échantillon sur VirusTotal.

Guide de nettoyage du système

  1. Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
  2. Ne payez pas la rançon — rien ne garantit la récupération des fichiers
  3. Mettez en quarantaine les disques concernés
  4. Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
  5. Essayez les outils de déchiffrement disponibles (projet NoMoreRansom)
  6. Signalez l’incident aux autorités (unité de cybercriminalité)
  7. Temiz bir yedekten kurtarın; yedeğiniz yoksa sürücüyü saklayın

Indices de règles YARA

rule BlackCat_SHA256 {
    meta:
        description = "BlackCat sample: acf8884a4bfb9ebf"
        threat_level = "critical"
        first_seen = "2022-06-21"
    condition:
        hash.sha256(0, filesize) == "acf8884a4bfb9ebfe99ed607c4f1cf625cd705ac4317c092ef6dcca3d47027aa"
}

BlackCat — Profil du malware

BlackCat, Rust ile yazılan ransomware'dir.

Type de malware
Ransomware
Langage de programmation
Rust
Protocole C2
Systèmes ciblés
Windows/Linux
Aussi connu sous (AKA)
ALPHV

Détails techniques

BlackCat (ALPHV) is the first major ransomware written in Rust, enabling cross-platform attacks on Windows, Linux, and VMware ESXi. Emerged November 2021 as a RaaS operation. Triple extortion: file encryption + data exfiltration + DDoS threats. Uses AES-128 (CTR mode) or ChaCha20 for file encryption with RSA-2048 for key protection. Highly configurable JSON config: target extensions, excluded paths, credential stuffing. Uses intermittent encryption (partial file encryption) for speed. ALPHV 3.0 (Sphynx) introduced EXMATTER data exfiltration tool. FBI disrupted December 2023 with decryption keys released for 500 victims. Believed operated by former DarkSide/BlackMatter members.

Attribution / Acteur de la menace

ALPHV (linked to DarkSide/BlackMatter)

Capacités et comportement

Dosya Şifreleme (AES/RSA)
Gölge Kopya Silme
Yedek Kaldırma
Fidye Notu Oluşturma
Kalıcılık Sağlama
Ağ Paylaşımı Şifreleme
Anti-Analiz Teknikleri
Çift Gasp (Data Leak)

Liste IOC (2 indicateurs)

IOC — BlackCat
# SHA256 acf8884a4bfb9ebfe99ed607c4f1cf625cd705ac4317c092ef6dcca3d47027aa # MD5 305de189e8a35d4b98d9d0f45d5a8648
TypeValeurNote
sha256 acf8884a4bfb9ebfe99ed607c4f1cf625cd705ac4317c092ef6dcca3d47027aa Sample:BlackCat
md5 305de189e8a35d4b98d9d0f45d5a8648 Sample:BlackCat
Tags
blackcatransomwaremalwarecriticalsha256hash-analizi