GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256c7d75ed89103b9c786dfcc86f14a96f45957fb0769e80b4746373488d3f5ff86
MD5694a5cc4a930b5cc21b866958cb45a58
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Namec7d75ed89103b9c786dfcc86f14a96f45957fb0769e80b4746373488d3f5ff86
Tagsexe, Gandcrab

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: c7d75ed89103b9c786dfcc86f14a96f45957fb0769e80b4746373488d3f5ff86
  • MD5: 694a5cc4a930b5cc21b866958cb45a58

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: c7d75ed89103b9c7"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "c7d75ed89103b9c786dfcc86f14a96f45957fb0769e80b4746373488d3f5ff86"
}

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 c7d75ed89103b9c786dfcc86f14a96f45957fb0769e80b4746373488d3f5ff86 # MD5 694a5cc4a930b5cc21b866958cb45a58
TypeValueNote
sha256 c7d75ed89103b9c786dfcc86f14a96f45957fb0769e80b4746373488d3f5ff86 Sample:GandCrab
md5 694a5cc4a930b5cc21b866958cb45a58 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi