Cuba | Threat Level: high | Type: Ransomware

Cryptographic Identifiers

SHA25611a22093931e87f7b28191643bbf9023e423e8a08cca2fe56b3d466c051d96a6
MD52b84d687d35a87b1eca60fb65a8b942f
File Typezip
Size475.8 KB
First Seen2022-03-08
File NameCuba_Sample (6).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: 11a22093931e87f7b28191643bbf9023e423e8a08cca2fe56b3d466c051d96a6
  • MD5: 2b84d687d35a87b1eca60fb65a8b942f

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: 11a22093931e87f7"
        threat_level = "high"
        first_seen = "2022-03-08"
    condition:
        hash.sha256(0, filesize) == "11a22093931e87f7b28191643bbf9023e423e8a08cca2fe56b3d466c051d96a6"
}

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 11a22093931e87f7b28191643bbf9023e423e8a08cca2fe56b3d466c051d96a6 # MD5 2b84d687d35a87b1eca60fb65a8b942f
TypeValueNote
sha256 11a22093931e87f7b28191643bbf9023e423e8a08cca2fe56b3d466c051d96a6 Sample:Cuba
md5 2b84d687d35a87b1eca60fb65a8b942f Sample:Cuba
Tags
cubaransomwaremalwarehighsha256hash-analizi