BlackCat | Niveau de menace: critical | Type: Ransomware

Identifiants cryptographiques

SHA2567e363b5f1ba373782261713fa99e8bbc35ddda97e48799c4eb28f17989da8d8e
MD58e1f22dd9e809ead5e19b340b0c80cae
Type de fichierexe
Taille2935.0 KB
Première observation2021-12-09
Nom du fichier7e363b5f1ba373782261713fa99e8bbc35ddda97e48799c4eb28f17989da8d8e.bin
ÉtiquettesALPHV, blackcat, 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: 7e363b5f1ba373782261713fa99e8bbc35ddda97e48799c4eb28f17989da8d8e
  • MD5: 8e1f22dd9e809ead5e19b340b0c80cae

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: 7e363b5f1ba37378"
        threat_level = "critical"
        first_seen = "2021-12-09"
    condition:
        hash.sha256(0, filesize) == "7e363b5f1ba373782261713fa99e8bbc35ddda97e48799c4eb28f17989da8d8e"
}

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 7e363b5f1ba373782261713fa99e8bbc35ddda97e48799c4eb28f17989da8d8e # MD5 8e1f22dd9e809ead5e19b340b0c80cae
TypeValeurNote
sha256 7e363b5f1ba373782261713fa99e8bbc35ddda97e48799c4eb28f17989da8d8e Sample:BlackCat
md5 8e1f22dd9e809ead5e19b340b0c80cae Sample:BlackCat
Tags
blackcatransomwaremalwarecriticalsha256hash-analizi