GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2569c85397c39f7799687df61ffe6ea85231d6c7e02da9f8bb768d8d2681eec6d59
MD519cb63c0f3d3f3b1db098e4078178eec
File Typeexe
Size428.0 KB
First Seen2023-05-08
File Name2023-05-07_19cb63c0f3d3f3b1db098e4078178eec_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: 9c85397c39f7799687df61ffe6ea85231d6c7e02da9f8bb768d8d2681eec6d59
  • MD5: 19cb63c0f3d3f3b1db098e4078178eec

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: 9c85397c39f77996"
        threat_level = "critical"
        first_seen = "2023-05-08"
    condition:
        hash.sha256(0, filesize) == "9c85397c39f7799687df61ffe6ea85231d6c7e02da9f8bb768d8d2681eec6d59"
}

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 9c85397c39f7799687df61ffe6ea85231d6c7e02da9f8bb768d8d2681eec6d59 # MD5 19cb63c0f3d3f3b1db098e4078178eec
TypeValueNote
sha256 9c85397c39f7799687df61ffe6ea85231d6c7e02da9f8bb768d8d2681eec6d59 Sample:GandCrab
md5 19cb63c0f3d3f3b1db098e4078178eec Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi