REvil — 591d971b9411860904bc7fb9234d9069e3e8cacd [591d971b]

Hash / Bilgi	Deger
SHA256	591d971b9411860904bc7fb9234d9069e3e8cacd06523b0bf93547bc2c4a827a
MD5	35766bd0b389c682306437d45ba5c4e6
SHA1	b837df01d31c1bfff0e54f07076323d075a4bf27
ImpHash	c686e5b9f7a178eb79f1cf16460b6a18
Dosya Adi	591d971b9411860904bc7fb9234d9069e3e8cacd06523b0bf93547bc2c4a827a.bin.exe
Dosya Türü	exe
Boyut	118,272 bytes
Ilk Görülme	2020-08-20

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
591d971b9411860904bc7fb9234d9069e3e8cacd06523b0bf93547bc2c4a827a

# MD5
35766bd0b389c682306437d45ba5c4e6

Type	Value	Note
sha256	591d971b9411860904bc7fb9234d9069e3e8cacd06523b0bf93547bc2c4a827a
md5	35766bd0b389c682306437d45ba5c4e6

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