REvil – 835f242d_by_Libranalysis [dc6b0e8c]

Hash / Bilgi	Deger
SHA256	dc6b0e8c1e9c113f0364e1c8370060dee3fcbe25b667ddeca7623a95cd21411f
MD5	835f242dde220cc76ee5544119562268
SHA1	8118474606a68c03581eef85a05a90275aa1ec24
ImpHash	c36dcd2277c4a707a1a645d0f727542a
Dosya Adi	835f242d_by_Libranalysis
Dosya Türü	exe
Boyut	933,736 bytes
Ilk Görülme	2021-05-14

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
dc6b0e8c1e9c113f0364e1c8370060dee3fcbe25b667ddeca7623a95cd21411f

# MD5
835f242dde220cc76ee5544119562268

Type	Value	Note
sha256	dc6b0e8c1e9c113f0364e1c8370060dee3fcbe25b667ddeca7623a95cd21411f
md5	835f242dde220cc76ee5544119562268

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