BlackCat | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256214ea9347df948e515af3f0ed446722e36f011e8cd34a221eb6e506269b955f3
MD56c1b41913748b2283ce225173b94c09e
File Typeexe
Size3005.0 KB
First Seen2022-06-21
File Name214ea9347df948e515af3f0ed446722e36f011e8cd34a221eb6e506269b955f3
Tagsblackcat, BlackCat Indicators, exe

Malware Family: BlackCat

BlackCat, Rust ransomware'dir.

TypeRansomware
Programming LanguageRust
Target PlatformWindows/Linux
C2 Protocol
PurposeRansomware
First Seen Year2021
AliasesALPHV

Threat Indicators (IOC)

  • SHA256: 214ea9347df948e515af3f0ed446722e36f011e8cd34a221eb6e506269b955f3
  • MD5: 6c1b41913748b2283ce225173b94c09e

You can verify all hash values of this sample on VirusTotal.

System Cleanup Guide

  1. Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
  2. Do not pay the ransom — there is no guarantee your files will be restored
  3. Quarantine the affected drives
  4. Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
  5. Try available decryptor tools (the NoMoreRansom project)
  6. Report the incident to the authorities (cybercrime unit)
  7. Temiz bir yedekten kurtarın; yedeğiniz yoksa sürücüyü saklayın

YARA Rule Hints

rule BlackCat_SHA256 {
    meta:
        description = "BlackCat sample: 214ea9347df948e5"
        threat_level = "critical"
        first_seen = "2022-06-21"
    condition:
        hash.sha256(0, filesize) == "214ea9347df948e515af3f0ed446722e36f011e8cd34a221eb6e506269b955f3"
}

BlackCat — Malware Profile

BlackCat, Rust ile yazılan ransomware'dir.

Malware Type
Ransomware
Programming Language
Rust
C2 Protocol
Target Systems
Windows/Linux
Also Known As (AKA)
ALPHV

Technical 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 / Threat Actor

ALPHV (linked to DarkSide/BlackMatter)

Capabilities & Behavior

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 List (2 indicators)

IOC — BlackCat
# SHA256 214ea9347df948e515af3f0ed446722e36f011e8cd34a221eb6e506269b955f3 # MD5 6c1b41913748b2283ce225173b94c09e
TypeValueNote
sha256 214ea9347df948e515af3f0ed446722e36f011e8cd34a221eb6e506269b955f3 Sample:BlackCat
md5 6c1b41913748b2283ce225173b94c09e Sample:BlackCat
Tags
blackcatransomwaremalwarecriticalsha256hash-analizi