GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25686c7e0f6f14f69b68007b15aa4913673d9aa5715c155f5fb3c56af9b6627aa54
MD53a74f8ac978fa8fba48636d535adc17f
File Typeexe
Size16384.0 KB
First Seen2023-04-28
File Name2023-04-27_3a74f8ac978fa8fba48636d535adc17f_gandcrab
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: 86c7e0f6f14f69b68007b15aa4913673d9aa5715c155f5fb3c56af9b6627aa54
  • MD5: 3a74f8ac978fa8fba48636d535adc17f

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: 86c7e0f6f14f69b6"
        threat_level = "critical"
        first_seen = "2023-04-28"
    condition:
        hash.sha256(0, filesize) == "86c7e0f6f14f69b68007b15aa4913673d9aa5715c155f5fb3c56af9b6627aa54"
}

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 86c7e0f6f14f69b68007b15aa4913673d9aa5715c155f5fb3c56af9b6627aa54 # MD5 3a74f8ac978fa8fba48636d535adc17f
TypeValueNote
sha256 86c7e0f6f14f69b68007b15aa4913673d9aa5715c155f5fb3c56af9b6627aa54 Sample:GandCrab
md5 3a74f8ac978fa8fba48636d535adc17f Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi