REvil | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2565f56d5748940e4039053f85978074bde16d64bd5ba97f6f0026ba8172cb29e93
MD5890a58f200dfff23165df9e1b088e58f
File Typeexe
Size164.0 KB
First Seen2021-03-10
File Name5f56d5748940e4039053f85978074bde16d64bd5ba97f6f0026ba8172cb29e93
TagsRansomware, 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: 5f56d5748940e4039053f85978074bde16d64bd5ba97f6f0026ba8172cb29e93
  • MD5: 890a58f200dfff23165df9e1b088e58f

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: 5f56d5748940e403"
        threat_level = "critical"
        first_seen = "2021-03-10"
    condition:
        hash.sha256(0, filesize) == "5f56d5748940e4039053f85978074bde16d64bd5ba97f6f0026ba8172cb29e93"
}

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 5f56d5748940e4039053f85978074bde16d64bd5ba97f6f0026ba8172cb29e93 # MD5 890a58f200dfff23165df9e1b088e58f
TypeValueNote
sha256 5f56d5748940e4039053f85978074bde16d64bd5ba97f6f0026ba8172cb29e93
md5 890a58f200dfff23165df9e1b088e58f
Tags
revilransomwaremalwarecriticalsha256analizzenginleştirilmiş