REvil - downloader.exe [15e3b847]

Hash / Bilgi	Deger
SHA256	15e3b8471e4afea6e07423d88c141e9ae454c27fa901fe320f0885298426abec
MD5	3de602dc9237aa9b880e6319a6a91747
SHA1	2e1e6d795e727ad2c4cb05f225312a3fa6a83c6b
ImpHash	f34d5f2d4577ed6d9ceec516c1f5a744
Dosya Adi	downloader.exe
Dosya Türü	exe
Boyut	483,328 bytes
Ilk Görülme	2021-09-30

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

1.5DecryptorexeREvilSodinokibi

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
15e3b8471e4afea6e07423d88c141e9ae454c27fa901fe320f0885298426abec

# MD5
3de602dc9237aa9b880e6319a6a91747

Type	Value	Note
sha256	15e3b8471e4afea6e07423d88c141e9ae454c27fa901fe320f0885298426abec
md5	3de602dc9237aa9b880e6319a6a91747

REvil — Go to Full Profile →