BlackCat | Niveau de menace: critical | Type: Ransomware

Identifiants cryptographiques

SHA256c4c49d2da33892fc0fb8d961a5d504b9f458206e0366132c8a0d017d6e8767ff
MD5fde6729cb6c4bd184cc8c39bdde8c058
Type de fichierexe
Taille3084.5 KB
Première observation2022-12-18
Nom du fichierc4c49d2da33892fc0fb8d961a5d504b9f458206e0366132c8a0d017d6e8767ff
Étiquettesblackcat, exe, Ransomware

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: c4c49d2da33892fc0fb8d961a5d504b9f458206e0366132c8a0d017d6e8767ff
  • MD5: fde6729cb6c4bd184cc8c39bdde8c058

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: c4c49d2da33892fc"
        threat_level = "critical"
        first_seen = "2022-12-18"
    condition:
        hash.sha256(0, filesize) == "c4c49d2da33892fc0fb8d961a5d504b9f458206e0366132c8a0d017d6e8767ff"
}

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 c4c49d2da33892fc0fb8d961a5d504b9f458206e0366132c8a0d017d6e8767ff # MD5 fde6729cb6c4bd184cc8c39bdde8c058
TypeValeurNote
sha256 c4c49d2da33892fc0fb8d961a5d504b9f458206e0366132c8a0d017d6e8767ff Sample:BlackCat
md5 fde6729cb6c4bd184cc8c39bdde8c058 Sample:BlackCat
Tags
blackcatransomwaremalwarecriticalsha256hash-analizi