REvil | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25686249470665edd52f64c2261389c00b001789cd83fcf412c36ef842ce434703e
MD5ba0936a0060e90c5b3d0ec7f8aa0423d
File Typedll
Size119.5 KB
First Seen2021-04-07
File Name86249470665edd52f64c2261389c00b001789cd83fcf412c36ef842ce434703e
TagsREvil, Sodinokibi

Malware Family: REvil

REvil, RaaS'tır.

TypeRansomware
Programming LanguageC
Target PlatformWindows
C2 ProtocolHTTP
PurposeRaaS
First Seen Year2019
AliasesSodinokibi

Threat Indicators (IOC)

  • SHA256: 86249470665edd52f64c2261389c00b001789cd83fcf412c36ef842ce434703e
  • MD5: ba0936a0060e90c5b3d0ec7f8aa0423d

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 REvil_SHA256 {
    meta:
        description = "REvil sample: 86249470665edd52"
        threat_level = "critical"
        first_seen = "2021-04-07"
    condition:
        hash.sha256(0, filesize) == "86249470665edd52f64c2261389c00b001789cd83fcf412c36ef842ce434703e"
}

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 86249470665edd52f64c2261389c00b001789cd83fcf412c36ef842ce434703e # MD5 ba0936a0060e90c5b3d0ec7f8aa0423d
TypeValueNote
sha256 86249470665edd52f64c2261389c00b001789cd83fcf412c36ef842ce434703e Sample:REvil
md5 ba0936a0060e90c5b3d0ec7f8aa0423d Sample:REvil
Tags
revilransomwaremalwarecriticalsha256hash-analizi