REvil | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2566081e88fe927e60d87da7a0bf1cc748f3c52f951a80dd3e4bd16ceaadc80571a
MD55a3b285d9317c6dcf0f6a31dbb4b19e4
File Typeexe
Size114.5 KB
First Seen2020-08-23
File Name6081e88fe927e60d87da7a0bf1cc748f3c52f951a80dd3e4bd16ceaadc80571a.bin.exe
TagsDecryptor, REvil, Sodinokibi

Malware Family: REvil

REvil, RaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 6081e88fe927e60d87da7a0bf1cc748f3c52f951a80dd3e4bd16ceaadc80571a
  • MD5: 5a3b285d9317c6dcf0f6a31dbb4b19e4

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: 6081e88fe927e60d"
        threat_level = "critical"
        first_seen = "2020-08-23"
    condition:
        hash.sha256(0, filesize) == "6081e88fe927e60d87da7a0bf1cc748f3c52f951a80dd3e4bd16ceaadc80571a"
}

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 6081e88fe927e60d87da7a0bf1cc748f3c52f951a80dd3e4bd16ceaadc80571a # MD5 5a3b285d9317c6dcf0f6a31dbb4b19e4
TypeValueNote
sha256 6081e88fe927e60d87da7a0bf1cc748f3c52f951a80dd3e4bd16ceaadc80571a Sample:REvil
md5 5a3b285d9317c6dcf0f6a31dbb4b19e4 Sample:REvil
Tags
revilransomwaremalwarecriticalsha256hash-analizi