BlackCat | Nivel de amenaza: critical | Tipo: Ransomware

Identificadores criptográficos

SHA2568a22a91c931ac80ca91cf91fef678c4bee00e3eb5ad24f209bc8595e012ba5b0
MD54c1d1a3467ac508a66d680514a327eb7
Tipo de archivoexe
Tamaño3005.5 KB
Primera detección2022-06-21
Nombre de archivo8a22a91c931ac80ca91cf91fef678c4bee00e3eb5ad24f209bc8595e012ba5b0
Etiquetasblackcat, BlackCat Indicators, exe

Familia de malware: BlackCat

BlackCat, Rust ransomware'dir.

TipoRansomware
Lenguaje de programaciónRust
Plataforma objetivoWindows/Linux
Protocolo C2
PropósitoRansomware
Año de primera detección2021
Otros nombresALPHV

Indicadores de amenaza (IOC)

  • SHA256: 8a22a91c931ac80ca91cf91fef678c4bee00e3eb5ad24f209bc8595e012ba5b0
  • MD5: 4c1d1a3467ac508a66d680514a327eb7

Puede verificar todos los valores hash de esta muestra en VirusTotal.

Guía de limpieza del sistema

  1. Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
  2. No pague el rescate: no hay garantía de recuperar los archivos
  3. Ponga en cuarentena las unidades afectadas
  4. Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
  5. Pruebe las herramientas de descifrado disponibles (proyecto NoMoreRansom)
  6. Informe el incidente a las autoridades (unidad de ciberdelincuencia)
  7. Temiz bir yedekten kurtarın; yedeğiniz yoksa sürücüyü saklayın

Sugerencias de reglas YARA

rule BlackCat_SHA256 {
    meta:
        description = "BlackCat sample: 8a22a91c931ac80c"
        threat_level = "critical"
        first_seen = "2022-06-21"
    condition:
        hash.sha256(0, filesize) == "8a22a91c931ac80ca91cf91fef678c4bee00e3eb5ad24f209bc8595e012ba5b0"
}

BlackCat — Perfil del malware

BlackCat, Rust ile yazılan ransomware'dir.

Tipo de malware
Ransomware
Lenguaje de programación
Rust
Protocolo C2
Sistemas objetivo
Windows/Linux
También conocido como (AKA)
ALPHV

Detalles técnicos

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.

Atribución / Actor de amenaza

ALPHV (linked to DarkSide/BlackMatter)

Capacidades y comportamiento

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

Lista IOC (2 indicadores)

IOC — BlackCat
# SHA256 8a22a91c931ac80ca91cf91fef678c4bee00e3eb5ad24f209bc8595e012ba5b0 # MD5 4c1d1a3467ac508a66d680514a327eb7
TipoValorNota
sha256 8a22a91c931ac80ca91cf91fef678c4bee00e3eb5ad24f209bc8595e012ba5b0 Sample:BlackCat
md5 4c1d1a3467ac508a66d680514a327eb7 Sample:BlackCat
Etiquetas
blackcatransomwaremalwarecriticalsha256hash-analizi