GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25661bf467261d1d97452e48f1c87e7f52dab654c8932501c29734730aff09a9603
MD54dfa941739ff5c267041506ae6f4f9cf
File Typeexe
Size73.5 KB
First Seen2023-01-24
File Name61bf467261d1d97452e48f1c87e7f52dab654c8932501c29734730aff09a9603.bin.sample
TagsGandcrab, Ransomware

Malware Family: GandCrab

GandCrab, en yaygın eski ransomware'dir.

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

Threat Indicators (IOC)

  • SHA256: 61bf467261d1d97452e48f1c87e7f52dab654c8932501c29734730aff09a9603
  • MD5: 4dfa941739ff5c267041506ae6f4f9cf

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: 61bf467261d1d974"
        threat_level = "critical"
        first_seen = "2023-01-24"
    condition:
        hash.sha256(0, filesize) == "61bf467261d1d97452e48f1c87e7f52dab654c8932501c29734730aff09a9603"
}

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 61bf467261d1d97452e48f1c87e7f52dab654c8932501c29734730aff09a9603 # MD5 4dfa941739ff5c267041506ae6f4f9cf
TypeValueNote
sha256 61bf467261d1d97452e48f1c87e7f52dab654c8932501c29734730aff09a9603 Sample:GandCrab
md5 4dfa941739ff5c267041506ae6f4f9cf Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi