REvil | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2563ba4483c761a05e590671f54a39032630f82820177bbe7fcee9c445f6d5fd6db
MD5fc299304c71036de8ada988bd3d8fdb3
File Typeexe
Size116.0 KB
First Seen2020-08-23
File Name3ba4483c761a05e590671f54a39032630f82820177bbe7fcee9c445f6d5fd6db.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: 3ba4483c761a05e590671f54a39032630f82820177bbe7fcee9c445f6d5fd6db
  • MD5: fc299304c71036de8ada988bd3d8fdb3

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: 3ba4483c761a05e5"
        threat_level = "critical"
        first_seen = "2020-08-23"
    condition:
        hash.sha256(0, filesize) == "3ba4483c761a05e590671f54a39032630f82820177bbe7fcee9c445f6d5fd6db"
}

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 3ba4483c761a05e590671f54a39032630f82820177bbe7fcee9c445f6d5fd6db # MD5 fc299304c71036de8ada988bd3d8fdb3
TypeValueNote
sha256 3ba4483c761a05e590671f54a39032630f82820177bbe7fcee9c445f6d5fd6db Sample:REvil
md5 fc299304c71036de8ada988bd3d8fdb3 Sample:REvil
Tags
revilransomwaremalwarecriticalsha256hash-analizi