Cuba | Threat Level: high | Type: Ransomware

Cryptographic Identifiers

SHA25628c50b97aed33e25cfd07f83ad3e84513ad45ffc96764ef365124255414e9459
MD54496b3c9c7c044b38c9bcc10b0c52766
File Typezip
Size472.8 KB
First Seen2022-03-08
File NameCuba_Sample (3).zip
Tagscuba, Ransomware, zip

Malware Family: Cuba

Cuba, kritik altyapıyı hedefler.

TypeRansomware
Programming LanguageC++
Target PlatformWindows
C2 Protocol
PurposeKritik altyapı ransomware
First Seen Year2019
AliasesCOLDDRAW

Threat Indicators (IOC)

  • SHA256: 28c50b97aed33e25cfd07f83ad3e84513ad45ffc96764ef365124255414e9459
  • MD5: 4496b3c9c7c044b38c9bcc10b0c52766

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 Cuba_SHA256 {
    meta:
        description = "Cuba sample: 28c50b97aed33e25"
        threat_level = "high"
        first_seen = "2022-03-08"
    condition:
        hash.sha256(0, filesize) == "28c50b97aed33e25cfd07f83ad3e84513ad45ffc96764ef365124255414e9459"
}

Cuba — Malware Profile

Cuba, kritik altyapıyı hedefler.

Malware Type
Ransomware
Programming Language
C++
C2 Protocol
Target Systems
Windows
Also Known As (AKA)
COLDDRAW

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 — Cuba
# SHA256 28c50b97aed33e25cfd07f83ad3e84513ad45ffc96764ef365124255414e9459 # MD5 4496b3c9c7c044b38c9bcc10b0c52766
TypeValueNote
sha256 28c50b97aed33e25cfd07f83ad3e84513ad45ffc96764ef365124255414e9459 Sample:Cuba
md5 4496b3c9c7c044b38c9bcc10b0c52766 Sample:Cuba
Tags
cubaransomwaremalwarehighsha256hash-analizi