LockBit | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256bdd635b9c3d3c1e9871b3e6b917f33670c5ad8fe36fe90e8ca4714fbd592599a
MD5d8f694deb7dab13efa540ea6731efccf
File Typeexe
Size160.5 KB
First Seen2025-06-25
File Namebdd635b9c3d3c1e9871b3e6b917f33670c5ad8fe36fe90e8ca4714fbd592599a
TagsBlackMatter, exe, lockbit, lockbit4, lockbit4.0, Ransomware

Malware Family: LockBit

LockBit, yaygın ransomware'dir.

TypeRansomware
Programming LanguageC++
Target PlatformWindows/Linux
C2 Protocol
PurposeRansomware
First Seen Year2019
AliasesLockBit 3.0

Threat Indicators (IOC)

  • SHA256: bdd635b9c3d3c1e9871b3e6b917f33670c5ad8fe36fe90e8ca4714fbd592599a
  • MD5: d8f694deb7dab13efa540ea6731efccf

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: bdd635b9c3d3c1e9"
        threat_level = "critical"
        first_seen = "2025-06-25"
    condition:
        hash.sha256(0, filesize) == "bdd635b9c3d3c1e9871b3e6b917f33670c5ad8fe36fe90e8ca4714fbd592599a"
}

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 bdd635b9c3d3c1e9871b3e6b917f33670c5ad8fe36fe90e8ca4714fbd592599a # MD5 d8f694deb7dab13efa540ea6731efccf
TypeValueNote
sha256 bdd635b9c3d3c1e9871b3e6b917f33670c5ad8fe36fe90e8ca4714fbd592599a Sample:LockBit
md5 d8f694deb7dab13efa540ea6731efccf 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