Egregor | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2564c9e3ffda0e663217638e6192a093bbc23cd9ebfbdf6d2fc683f331beaee0321
MD5a654b3a37c27810db180822b72ad6d3e
File Typedll
Size790.0 KB
First Seen2020-10-05
File Nameb3.dll
Tagsdll, egregor, MSGLoader

Malware Family: Egregor

Egregor, fidye notunu yazıcıdan bastı.

TypeRansomware
Programming LanguageC++
Target PlatformWindows
C2 Protocol
PurposeYazıcı ransomware
First Seen Year2020

Threat Indicators (IOC)

  • SHA256: 4c9e3ffda0e663217638e6192a093bbc23cd9ebfbdf6d2fc683f331beaee0321
  • MD5: a654b3a37c27810db180822b72ad6d3e

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 Egregor_SHA256 {
    meta:
        description = "Egregor sample: 4c9e3ffda0e66321"
        threat_level = "critical"
        first_seen = "2020-10-05"
    condition:
        hash.sha256(0, filesize) == "4c9e3ffda0e663217638e6192a093bbc23cd9ebfbdf6d2fc683f331beaee0321"
}

Egregor — Malware Profile

Egregor, fidye notunu yazıcıdan bastı.

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

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 — Egregor
# SHA256 4c9e3ffda0e663217638e6192a093bbc23cd9ebfbdf6d2fc683f331beaee0321 # MD5 a654b3a37c27810db180822b72ad6d3e
TypeValueNote
sha256 4c9e3ffda0e663217638e6192a093bbc23cd9ebfbdf6d2fc683f331beaee0321 Sample:Egregor
md5 a654b3a37c27810db180822b72ad6d3e Sample:Egregor
Tags
egregorransomwaremalwarecriticalsha256hash-analizi