REvil | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256861e2544ddb9739d79b265aab1e327d11617bc9d9c94bc5b35282c33fcb419bc
MD5db2401798c8b41b0d5728e5b6bbb94cf
File Typeexe
Size85.0 KB
First Seen2022-05-11
File Name861e2544ddb9739d79b265aab1e327d11617bc9d9c94bc5b35282c33fcb419bc.bin
Tagsexe, Ransomware, REvil, Sodinokibi

Malware Family: REvil

REvil, RaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 861e2544ddb9739d79b265aab1e327d11617bc9d9c94bc5b35282c33fcb419bc
  • MD5: db2401798c8b41b0d5728e5b6bbb94cf

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: 861e2544ddb9739d"
        threat_level = "critical"
        first_seen = "2022-05-11"
    condition:
        hash.sha256(0, filesize) == "861e2544ddb9739d79b265aab1e327d11617bc9d9c94bc5b35282c33fcb419bc"
}

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 861e2544ddb9739d79b265aab1e327d11617bc9d9c94bc5b35282c33fcb419bc # MD5 db2401798c8b41b0d5728e5b6bbb94cf
TypeValueNote
sha256 861e2544ddb9739d79b265aab1e327d11617bc9d9c94bc5b35282c33fcb419bc Sample:REvil
md5 db2401798c8b41b0d5728e5b6bbb94cf Sample:REvil
Tags
revilransomwaremalwarecriticalsha256hash-analizi