GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25691d911e981c1536fb2c5ba18b5c93326dc63beae2dcabbead857cb9f1bd9a779
MD511b2ddb95c43adaec4bc616fc3501e17
File Typeexe
Size70.0 KB
First Seen2023-03-05
File Name2023-03-01_11b2ddb95c43adaec4bc616fc3501e17_gandcrab
TagsGandcrab

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: 91d911e981c1536fb2c5ba18b5c93326dc63beae2dcabbead857cb9f1bd9a779
  • MD5: 11b2ddb95c43adaec4bc616fc3501e17

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: 91d911e981c1536f"
        threat_level = "critical"
        first_seen = "2023-03-05"
    condition:
        hash.sha256(0, filesize) == "91d911e981c1536fb2c5ba18b5c93326dc63beae2dcabbead857cb9f1bd9a779"
}

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 91d911e981c1536fb2c5ba18b5c93326dc63beae2dcabbead857cb9f1bd9a779 # MD5 11b2ddb95c43adaec4bc616fc3501e17
TypeValueNote
sha256 91d911e981c1536fb2c5ba18b5c93326dc63beae2dcabbead857cb9f1bd9a779 Sample:GandCrab
md5 11b2ddb95c43adaec4bc616fc3501e17 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi