Babuk | Threat Level: high | Type: Ransomware

Cryptographic Identifiers

SHA256a2b5ebfc52a447cde255e1ec1ac8797ad49b156ed427df8c292d6aeb4dad5523
MD5dfaa9121f4165a9f38a8406d82f0ab71
File Typeexe
Size79.0 KB
First Seen2021-04-29
File Namea2b5ebfc52a447cde255e1ec1ac8797ad49b156ed427df8c292d6aeb4dad5523.exe
TagsBabuk, babyk, Ransomware

Malware Family: Babuk

Babuk, ESXi'yi şifreler.

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

Threat Indicators (IOC)

  • SHA256: a2b5ebfc52a447cde255e1ec1ac8797ad49b156ed427df8c292d6aeb4dad5523
  • MD5: dfaa9121f4165a9f38a8406d82f0ab71

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: a2b5ebfc52a447cd"
        threat_level = "high"
        first_seen = "2021-04-29"
    condition:
        hash.sha256(0, filesize) == "a2b5ebfc52a447cde255e1ec1ac8797ad49b156ed427df8c292d6aeb4dad5523"
}

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 a2b5ebfc52a447cde255e1ec1ac8797ad49b156ed427df8c292d6aeb4dad5523 # MD5 dfaa9121f4165a9f38a8406d82f0ab71
TypeValueNote
sha256 a2b5ebfc52a447cde255e1ec1ac8797ad49b156ed427df8c292d6aeb4dad5523 Sample:Babuk
md5 dfaa9121f4165a9f38a8406d82f0ab71 Sample:Babuk
Tags
babukransomwaremalwarehighsha256hash-analizi