GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256bb4eb834c0dbff96b1fda40ce5ed539dca8e08874932444bff8eedcf6502c555
MD5d54f0eb5db2dc6ff460bfe7ebd6baba5
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Namebb4eb834c0dbff96b1fda40ce5ed539dca8e08874932444bff8eedcf6502c555
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

TypeRansomware
Programming LanguageC
Target PlatformWindows
C2 ProtocolHTTP
PurposeMaaS ransomware
First Seen Year2018

Threat Indicators (IOC)

  • SHA256: bb4eb834c0dbff96b1fda40ce5ed539dca8e08874932444bff8eedcf6502c555
  • MD5: d54f0eb5db2dc6ff460bfe7ebd6baba5

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 GandCrab_SHA256 {
    meta:
        description = "GandCrab sample: bb4eb834c0dbff96"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "bb4eb834c0dbff96b1fda40ce5ed539dca8e08874932444bff8eedcf6502c555"
}

GandCrab — Malware Profile

GandCrab, 2018-2019 aktif RaaS ailesidir. 1.5 milyar USD hasar. RSA+Salsa20. Haziran 2019 kapandi. REvil oncusu.

Malware Type
Ransomware
Programming Language
C
C2 Protocol
HTTP
Target Systems
Windows

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 — GandCrab
# SHA256 bb4eb834c0dbff96b1fda40ce5ed539dca8e08874932444bff8eedcf6502c555 # MD5 d54f0eb5db2dc6ff460bfe7ebd6baba5
TypeValueNote
sha256 bb4eb834c0dbff96b1fda40ce5ed539dca8e08874932444bff8eedcf6502c555 Sample:GandCrab
md5 d54f0eb5db2dc6ff460bfe7ebd6baba5 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi