LockBit | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25682f27070eeed223bcc645b1ae47aa9309ef353c1cf5b79141b712ab36e5c55ba
MD5d4e42db322dbda25cd2eeeff34773ca8
File Typeexe
Size54.5 KB
First Seen2023-03-26
File NameLB3Decryptor.exe
TagsDecryptor, exe, lockbit

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: 82f27070eeed223bcc645b1ae47aa9309ef353c1cf5b79141b712ab36e5c55ba
  • MD5: d4e42db322dbda25cd2eeeff34773ca8

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: 82f27070eeed223b"
        threat_level = "critical"
        first_seen = "2023-03-26"
    condition:
        hash.sha256(0, filesize) == "82f27070eeed223bcc645b1ae47aa9309ef353c1cf5b79141b712ab36e5c55ba"
}

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 82f27070eeed223bcc645b1ae47aa9309ef353c1cf5b79141b712ab36e5c55ba # MD5 d4e42db322dbda25cd2eeeff34773ca8
TypeValueNote
sha256 82f27070eeed223bcc645b1ae47aa9309ef353c1cf5b79141b712ab36e5c55ba Sample:LockBit
md5 d4e42db322dbda25cd2eeeff34773ca8 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