LockBit | Threat Level: critical | Type: Ransomware
Cryptographic Identifiers
| SHA256 | cd6d48db36adc645d60d4e68e6e154f08e4645eaef277c373ee116ae3bf29813 |
|---|---|
| MD5 | 3f9efe3e795af76334afbccae077a0db |
| File Type | dll |
| Size | 102.0 KB |
| First Seen | 2025-12-19 |
| File Name | ranresrefl.dll |
| Tags | BlackMatter, dll, lockbit |
Malware Family: LockBit
LockBit, en fazla saldırıdan sorumlu ransomware'dir.
| Type | Ransomware |
|---|---|
| Programming Language | C++ |
| Target Platform | Windows/Linux |
| C2 Protocol | — |
| Purpose | Çifte şantaj ransomware |
| First Seen Year | 2019 |
| Aliases | LockBit 3.0 |
Threat Indicators (IOC)
- SHA256:
cd6d48db36adc645d60d4e68e6e154f08e4645eaef277c373ee116ae3bf29813 - MD5:
3f9efe3e795af76334afbccae077a0db
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 LockBit_SHA256 {
meta:
description = "LockBit sample: cd6d48db36adc645"
threat_level = "critical"
first_seen = "2025-12-19"
condition:
hash.sha256(0, filesize) == "cd6d48db36adc645d60d4e68e6e154f08e4645eaef277c373ee116ae3bf29813"
}
LockBit — Malware Profile
LockBit 3.0 (LockBit Black). bl3.exe builder. CryptProtectMemory DPAPI key protection. WinRAR SFX delivery.
Malware Type
Ransomware
Programming Language
C++
C2 Protocol
—
Target Systems
Windows/Linux
Also Known As (AKA)
LockBit 3.0
Technical Details
C, RSA-2048 + AES-256 sifreleme (hibrid), vssadmin ile shadow copy silme, Active Directory enum, LockBit Builder ile ozel varyant uretimi, multi-threaded encryption, ransom note TXT/HTA
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 — LockBit
# SHA256
cd6d48db36adc645d60d4e68e6e154f08e4645eaef277c373ee116ae3bf29813
# MD5
3f9efe3e795af76334afbccae077a0db
| Type | Value | Note |
|---|---|---|
| sha256 | cd6d48db36adc645d60d4e68e6e154f08e4645eaef277c373ee116ae3bf29813 | Sample:LockBit |
| md5 | 3f9efe3e795af76334afbccae077a0db | Sample:LockBit |
C2 Servers (2 recorded servers for this family)
| Address | Type | Port | Protocol | Status | Country |
|---|---|---|---|---|---|
| 35.227.107.189 | ip | 443 | HTTPS | sinkholed | US |
| 89.185.85.239 | ip | 443 | HTTPS | sinkholed | NL |
C2 addresses are provided only from malware samples manually verified by the KEYDAL team. Commercial use is prohibited.