Babuk | Threat Level: high | Type: Ransomware

Cryptographic Identifiers

SHA256542d67073cbc5c7ce38ebcd31809591f54e000d901048c9e11870faa98cbf67d
MD5c2f7a0d4773f939dc37bc0d911b4a408
File Typeexe
Size79.0 KB
First Seen2025-08-08
File Name2025-04-21_c2f7a0d4773f939dc37bc0d911b4a408_babuk_destroyer_elex
TagsBabuk, exe

Malware Family: Babuk

Babuk, ESXi'yi şifreler.

TypeRansomware
Programming LanguageC++
Target PlatformWindows/Linux
C2 Protocol
PurposeESXi şifreleme
First Seen Year2021

Threat Indicators (IOC)

  • SHA256: 542d67073cbc5c7ce38ebcd31809591f54e000d901048c9e11870faa98cbf67d
  • MD5: c2f7a0d4773f939dc37bc0d911b4a408

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 Babuk_SHA256 {
    meta:
        description = "Babuk sample: 542d67073cbc5c7c"
        threat_level = "high"
        first_seen = "2025-08-08"
    condition:
        hash.sha256(0, filesize) == "542d67073cbc5c7ce38ebcd31809591f54e000d901048c9e11870faa98cbf67d"
}

Babuk — Malware Profile

Babuk, 2021 aktif .NET tabanlı ransomware ailesidir. Kaynak kodu sızdırılmış. ESXi ve Windows versiyonları.

Malware Type
Ransomware
Programming Language
C++
C2 Protocol
Target Systems
Windows/Linux

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 — Babuk
# SHA256 542d67073cbc5c7ce38ebcd31809591f54e000d901048c9e11870faa98cbf67d # MD5 c2f7a0d4773f939dc37bc0d911b4a408
TypeValueNote
sha256 542d67073cbc5c7ce38ebcd31809591f54e000d901048c9e11870faa98cbf67d Sample:Babuk
md5 c2f7a0d4773f939dc37bc0d911b4a408 Sample:Babuk
Tags
babukransomwaremalwarehighsha256hash-analizi