REvil | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2564270895e0d3973d98d5014e299f9e9a4dee0e528d37adbbcf47dc52ca483fd74
MD5a133909376f0499059642768d4f73a95
File Typedll
Size116.5 KB
First Seen2020-09-29
File NameYJxE8vf6.exe
Tagsexe, REvil, Sodinokibi

Malware Family: REvil

REvil, yüksek profilli saldırılar yaptı.

TypeRansomware
Programming LanguageC
Target PlatformWindows
C2 ProtocolHTTP
PurposeYüksek profilli RaaS
First Seen Year2019
AliasesSodinokibi

Threat Indicators (IOC)

  • SHA256: 4270895e0d3973d98d5014e299f9e9a4dee0e528d37adbbcf47dc52ca483fd74
  • MD5: a133909376f0499059642768d4f73a95

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. Yetkililere ihbarda bulunun
  7. Temiz bir yedekten kurtarın

YARA Rule Hints

rule REvil_SHA256 {
    meta:
        description = "REvil sample: 4270895e0d3973d9"
        threat_level = "critical"
        first_seen = "2020-09-29"
    condition:
        hash.sha256(0, filesize) == "4270895e0d3973d98d5014e299f9e9a4dee0e528d37adbbcf47dc52ca483fd74"
}

REvil — Malware Profile

REvil/Sodinokibi ransomware. nboehret developer. SP-API project. siliconplains.net C2. Downloader v1.4.

Malware Type
Ransomware
Programming Language
C
C2 Protocol
HTTP
Target Systems
Windows
Also Known As (AKA)
Sodinokibi

Technical Details

REvil (Sodinokibi) is a ransomware-as-a-service operated by GOLD SOUTHFIELD. First detected April 2019, believed successor to GandCrab. Uses elliptic curve Diffie-Hellman (ECDH) + Salsa20 for file encryption, RSA-2048 for key exchange. Highly customizable through embedded JSON configuration: target paths, excluded countries/extensions. Notable attacks: Kaseya VSA supply chain attack (July 2021, 1500+ MSPs affected), JBS Foods ($11M ransom), Travelex ($6M ransom). Double extortion via "Happy Blog" leak site. Source code leaked 2021. FSB arrested key members January 2022. Operations resumed briefly with "REvil is back" announcements.

Attribution / Threat Actor

GOLD SOUTHFIELD, GandCrab successor

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 — REvil
# SHA256 4270895e0d3973d98d5014e299f9e9a4dee0e528d37adbbcf47dc52ca483fd74 # MD5 a133909376f0499059642768d4f73a95
TypeValueNote
sha256 4270895e0d3973d98d5014e299f9e9a4dee0e528d37adbbcf47dc52ca483fd74
md5 a133909376f0499059642768d4f73a95
Tags
revilransomwaremalwarecriticalsha256analizzenginleştirilmiş