LockBit | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2563b52db44c2cdd8adfacb906362837ed449e96fcf761de4b1f26388b66b6edabe
MD5ef4a5d286011e8cd66514fa07ac99a29
File Typeexe
Size146.0 KB
First Seen2021-04-29
File Nameef4a5d28_by_Libranalysis
Tagslockbit

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: 3b52db44c2cdd8adfacb906362837ed449e96fcf761de4b1f26388b66b6edabe
  • MD5: ef4a5d286011e8cd66514fa07ac99a29

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: 3b52db44c2cdd8ad"
        threat_level = "critical"
        first_seen = "2021-04-29"
    condition:
        hash.sha256(0, filesize) == "3b52db44c2cdd8adfacb906362837ed449e96fcf761de4b1f26388b66b6edabe"
}

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 3b52db44c2cdd8adfacb906362837ed449e96fcf761de4b1f26388b66b6edabe # MD5 ef4a5d286011e8cd66514fa07ac99a29
TypeValueNote
sha256 3b52db44c2cdd8adfacb906362837ed449e96fcf761de4b1f26388b66b6edabe Sample:LockBit
md5 ef4a5d286011e8cd66514fa07ac99a29 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