Egregor | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256a9d483c0f021b72a94324562068d8164f8cce0aa8f779faea304669390775436
MD5666f8d920f85f9afffcf0865a98efe69
File Typedll
Size783.0 KB
First Seen2020-11-16
File Namefasm.dll
Tagsdll, egregor, MSGLoader, Ransomware

Malware Family: Egregor

Egregor, fidye notunu yazıcıdan bastı.

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

Threat Indicators (IOC)

  • SHA256: a9d483c0f021b72a94324562068d8164f8cce0aa8f779faea304669390775436
  • MD5: 666f8d920f85f9afffcf0865a98efe69

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: a9d483c0f021b72a"
        threat_level = "critical"
        first_seen = "2020-11-16"
    condition:
        hash.sha256(0, filesize) == "a9d483c0f021b72a94324562068d8164f8cce0aa8f779faea304669390775436"
}

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 a9d483c0f021b72a94324562068d8164f8cce0aa8f779faea304669390775436 # MD5 666f8d920f85f9afffcf0865a98efe69
TypeValueNote
sha256 a9d483c0f021b72a94324562068d8164f8cce0aa8f779faea304669390775436 Sample:Egregor
md5 666f8d920f85f9afffcf0865a98efe69 Sample:Egregor
Tags
egregorransomwaremalwarecriticalsha256hash-analizi