Cryptographic Identifiers
| SHA256 | a0eca3f1e6797ebb44ece1478362781f5161e74314845571e91ba97e43571f7d |
|---|---|
| MD5 | 57b8355855e919b32a5a5a340c3cfbe0 |
| File Type | exe |
| Size | 111.5 KB |
| First Seen | 2020-08-23 |
| File Name | a0eca3f1e6797ebb44ece1478362781f5161e74314845571e91ba97e43571f7d.bin |
| Tags | Decryptor, REvil, Sodinokibi |
Malware Family: REvil
REvil, RaaS'tır.
| Type | Ransomware |
|---|---|
| Programming Language | C |
| Target Platform | Windows |
| C2 Protocol | HTTP |
| Purpose | RaaS |
| First Seen Year | 2019 |
| Aliases | Sodinokibi |
Threat Indicators (IOC)
- SHA256:
a0eca3f1e6797ebb44ece1478362781f5161e74314845571e91ba97e43571f7d - MD5:
57b8355855e919b32a5a5a340c3cfbe0
You can verify all hash values of this sample on VirusTotal.
System Cleanup Guide
- Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
- Do not pay the ransom — there is no guarantee your files will be restored
- Quarantine the affected drives
- Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
- Try available decryptor tools (the NoMoreRansom project)
- Report the incident to the authorities (cybercrime unit)
- Temiz bir yedekten kurtarın; yedeğiniz yoksa sürücüyü saklayın
YARA Rule Hints
rule REvil_SHA256 {
meta:
description = "REvil sample: a0eca3f1e6797ebb"
threat_level = "critical"
first_seen = "2020-08-23"
condition:
hash.sha256(0, filesize) == "a0eca3f1e6797ebb44ece1478362781f5161e74314845571e91ba97e43571f7d"
}
REvil — Malware Profile
REvil/Sodinokibi ransomware. nboehret developer. SP-API project. siliconplains.net C2. Downloader v1.4.
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
IOC List (2 indicators)
# SHA256
a0eca3f1e6797ebb44ece1478362781f5161e74314845571e91ba97e43571f7d
# MD5
57b8355855e919b32a5a5a340c3cfbe0
| Type | Value | Note |
|---|---|---|
| sha256 | a0eca3f1e6797ebb44ece1478362781f5161e74314845571e91ba97e43571f7d | Sample:REvil |
| md5 | 57b8355855e919b32a5a5a340c3cfbe0 | Sample:REvil |