REvil – 2023-04-13_21d1a9db46928e1f338905653993c [41a94f3c]

Hash / Bilgi	Deger
SHA256	41a94f3cd67e479980e15c3e5fe56ad49593e8f3100a7c886397af5f7640c998
MD5	21d1a9db46928e1f338905653993c8be
SHA1	c3b7ba02f60ed2aa57b1d2f92db17ed11cc410ea
ImpHash	1e6452b349d3cbc048e72755b22f42e0
Dosya Adi	2023-04-13_21d1a9db46928e1f338905653993c8be_revil
Dosya Türü	exe
Boyut	118,784 bytes
Ilk Görülme	2023-04-14

Tehdit Degerlendirmesi

Bu ornek, kurban sistemindeki dosyaları sifreleyerek erisimi engelleyen ve sifre cozme anahtarı karsılıgında fidye talep eden bir fidye yazılımı olarak analiz edilmistir.

Tespit Edilen Yetenekler

Dosya Sifreleme
Golge Kopya Silme
Fidye Notu
Yedek Yok Etme
Veri Sizdirma

MalwareBazaar Etiketleri

Sodinokibi

Analiz Notu

Bu ornek REvil ailesine ait ve MalwareBazaar platformundan alınmıstır. KEYDAL Guvenlik Arastirmaları tarafından metadata analizi gerceklestirilmis ve IOC veritabanına eklenmistir.

REvil — Malware Profile

REvil/Sodinokibi ransomware. nboehret developer. SP-API project. siliconplains.net C2. Downloader v1.4.

Malware Type

Ransomware

Programming Language

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
41a94f3cd67e479980e15c3e5fe56ad49593e8f3100a7c886397af5f7640c998

# MD5
21d1a9db46928e1f338905653993c8be

Type	Value	Note
sha256	41a94f3cd67e479980e15c3e5fe56ad49593e8f3100a7c886397af5f7640c998
md5	21d1a9db46928e1f338905653993c8be

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