Babuk | Threat Level: high | Type: Ransomware

Cryptographic Identifiers

SHA256624391da604c4f5a032783234edc2f22338150656d90179a910e1e45cbfaf566
MD50fbeb0c96c056a0e4f56316ddb43ebb5
File Typeexe
Size1997.0 KB
First Seen2025-12-27
File Named792ec4dc1e5fca5dac1f612d86168f36b701e44ea4d13f4cc79b308644f3724.bin
TagsBabuk, exe, upx-dec

Malware Family: Babuk

Babuk, ESXi'yi şifreler.

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

Threat Indicators (IOC)

  • SHA256: 624391da604c4f5a032783234edc2f22338150656d90179a910e1e45cbfaf566
  • MD5: 0fbeb0c96c056a0e4f56316ddb43ebb5

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: 624391da604c4f5a"
        threat_level = "high"
        first_seen = "2025-12-27"
    condition:
        hash.sha256(0, filesize) == "624391da604c4f5a032783234edc2f22338150656d90179a910e1e45cbfaf566"
}

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 624391da604c4f5a032783234edc2f22338150656d90179a910e1e45cbfaf566 # MD5 0fbeb0c96c056a0e4f56316ddb43ebb5
TypeValueNote
sha256 624391da604c4f5a032783234edc2f22338150656d90179a910e1e45cbfaf566 Sample:Babuk
md5 0fbeb0c96c056a0e4f56316ddb43ebb5 Sample:Babuk
Tags
babukransomwaremalwarehighsha256hash-analizi