REvil – 48f5a1bf_by_Libranalysis [f51fc0ab]

Hash / Bilgi	Deger
SHA256	f51fc0ab96d1aee49950b8ca91ef67c330b8593340cc3002513100ac9bf163b0
MD5	48f5a1bfd405bf7846a1bd6e75c1acc8
SHA1	b59233e92af68dd2fbff0979d640bfd8e8e58eed
ImpHash	76645ad31e4725ade060b07fcb2eebde
Dosya Adi	48f5a1bf_by_Libranalysis
Dosya Türü	exe
Boyut	210,432 bytes
Ilk Görülme	2021-05-24

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
f51fc0ab96d1aee49950b8ca91ef67c330b8593340cc3002513100ac9bf163b0

# MD5
48f5a1bfd405bf7846a1bd6e75c1acc8

Type	Value	Note
sha256	f51fc0ab96d1aee49950b8ca91ef67c330b8593340cc3002513100ac9bf163b0
md5	48f5a1bfd405bf7846a1bd6e75c1acc8

REvil — Go to Full Profile →