BlackCat | Bedrohungsstufe: critical | Typ: Ransomware

Kryptografische Kennungen

SHA256bc8832f5a8911a1f6f979cbc37e33689f0066078d88bf5c14df534133175d75f
MD52f33382f7d3c45f47ac1c73d7395921a
Dateitypexe
Größe33827.5 KB
Erstsichtung2023-09-18
Dateinamebc8832f5a8911a1f6f979cbc37e33689f0066078d88bf5c14df534133175d75f.bin
Tagsblackcat, exe, Sphynx

Malware-Familie: BlackCat

BlackCat, Rust ile yazılan ransomware'dir.

TypRansomware
ProgrammierspracheRust
ZielplattformWindows/Linux
C2-Protokoll
ZweckÇapraz platform ransomware
Jahr der Erstsichtung2021
Andere NamenALPHV

Bedrohungsindikatoren (IOC)

  • SHA256: bc8832f5a8911a1f6f979cbc37e33689f0066078d88bf5c14df534133175d75f
  • MD5: 2f33382f7d3c45f47ac1c73d7395921a

Sie können alle Hash-Werte dieses Samples auf VirusTotal überprüfen.

Anleitung zur Systembereinigung

  1. Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
  2. Zahlen Sie kein Lösegeld — es gibt keine Garantie für die Wiederherstellung
  3. Stellen Sie die betroffenen Laufwerke unter Quarantäne
  4. Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
  5. Probieren Sie verfügbare Entschlüsselungstools (Projekt NoMoreRansom)
  6. Melden Sie den Vorfall den Behörden (Cybercrime-Einheit)
  7. Temiz bir yedekten kurtarın; yedeğiniz yoksa sürücüyü saklayın

Hinweise für YARA-Regeln

rule BlackCat_SHA256 {
    meta:
        description = "BlackCat sample: bc8832f5a8911a1f"
        threat_level = "critical"
        first_seen = "2023-09-18"
    condition:
        hash.sha256(0, filesize) == "bc8832f5a8911a1f6f979cbc37e33689f0066078d88bf5c14df534133175d75f"
}

BlackCat — Malware-Profil

BlackCat, Rust ile yazılan ransomware'dir.

Malware-Typ
Ransomware
Programmiersprache
Rust
C2-Protokoll
Zielsysteme
Windows/Linux
Auch bekannt als (AKA)
ALPHV

Technische Details

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 / Bedrohungsakteur

ALPHV (linked to DarkSide/BlackMatter)

Fähigkeiten & Verhalten

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

IOC-Liste (2 Indikatoren)

IOC — BlackCat
# SHA256 bc8832f5a8911a1f6f979cbc37e33689f0066078d88bf5c14df534133175d75f # MD5 2f33382f7d3c45f47ac1c73d7395921a
TypWertBemerkung
sha256 bc8832f5a8911a1f6f979cbc37e33689f0066078d88bf5c14df534133175d75f Sample:BlackCat
md5 2f33382f7d3c45f47ac1c73d7395921a Sample:BlackCat
Tags
blackcatransomwaremalwarecriticalsha256hash-analizi