GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256234d081a5eced202af0d8005e4ddf42bc0fce37d4d10a928818f33854171647f
MD5b52ee81a91696d9572781f901cd77785
File Typeexe
Size73.5 KB
First Seen2022-08-30
File Name234d081a5eced202af0d8005e4ddf42bc0fce37d4d10a928818f33854171647f
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: 234d081a5eced202af0d8005e4ddf42bc0fce37d4d10a928818f33854171647f
  • MD5: b52ee81a91696d9572781f901cd77785

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: 234d081a5eced202"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "234d081a5eced202af0d8005e4ddf42bc0fce37d4d10a928818f33854171647f"
}

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 234d081a5eced202af0d8005e4ddf42bc0fce37d4d10a928818f33854171647f # MD5 b52ee81a91696d9572781f901cd77785
TypeValueNote
sha256 234d081a5eced202af0d8005e4ddf42bc0fce37d4d10a928818f33854171647f Sample:GandCrab
md5 b52ee81a91696d9572781f901cd77785 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi