LockBit | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256637be4d4df565ad9299be22e19deacaa343f05d56fb9ea0a201fb012ac8f4df9
MD5c747d254c6d42c00e4150288a6198a47
File Typeexe
Size153.5 KB
First Seen2025-12-06
File Nametest_pass.exe
Tagsexe, lockbit

Malware Family: LockBit

LockBit, en fazla saldırıdan sorumlu ransomware'dir.

TypeRansomware
Programming LanguageC++
Target PlatformWindows/Linux
C2 Protocol
PurposeÇifte şantaj ransomware
First Seen Year2019
AliasesLockBit 3.0

Threat Indicators (IOC)

  • SHA256: 637be4d4df565ad9299be22e19deacaa343f05d56fb9ea0a201fb012ac8f4df9
  • MD5: c747d254c6d42c00e4150288a6198a47

You can verify all hash values of this sample on VirusTotal.

System Cleanup Guide

  1. Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
  2. Do not pay the ransom — there is no guarantee your files will be restored
  3. Quarantine the affected drives
  4. Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
  5. Try available decryptor tools (the NoMoreRansom project)
  6. Report the incident to the authorities (cybercrime unit)
  7. Temiz bir yedekten kurtarın; yedeğiniz yoksa sürücüyü saklayın

YARA Rule Hints

rule LockBit_SHA256 {
    meta:
        description = "LockBit sample: 637be4d4df565ad9"
        threat_level = "critical"
        first_seen = "2025-12-06"
    condition:
        hash.sha256(0, filesize) == "637be4d4df565ad9299be22e19deacaa343f05d56fb9ea0a201fb012ac8f4df9"
}

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 637be4d4df565ad9299be22e19deacaa343f05d56fb9ea0a201fb012ac8f4df9 # MD5 c747d254c6d42c00e4150288a6198a47
TypeValueNote
sha256 637be4d4df565ad9299be22e19deacaa343f05d56fb9ea0a201fb012ac8f4df9 Sample:LockBit
md5 c747d254c6d42c00e4150288a6198a47 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.

Tags
lockbitransomwaremalwarecriticalsha256hash-analizi