GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2569151656aa3199f9357335d5f72d5ed7d5c7cb0e140a7567e4482322bb0d4e195
MD5f31b115172480098e77e2af715415b9e
File Typeexe
Size15192.0 KB
First Seen2023-05-09
File Name2023-05-08_f31b115172480098e77e2af715415b9e_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: 9151656aa3199f9357335d5f72d5ed7d5c7cb0e140a7567e4482322bb0d4e195
  • MD5: f31b115172480098e77e2af715415b9e

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: 9151656aa3199f93"
        threat_level = "critical"
        first_seen = "2023-05-09"
    condition:
        hash.sha256(0, filesize) == "9151656aa3199f9357335d5f72d5ed7d5c7cb0e140a7567e4482322bb0d4e195"
}

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 9151656aa3199f9357335d5f72d5ed7d5c7cb0e140a7567e4482322bb0d4e195 # MD5 f31b115172480098e77e2af715415b9e
TypeValueNote
sha256 9151656aa3199f9357335d5f72d5ed7d5c7cb0e140a7567e4482322bb0d4e195 Sample:GandCrab
md5 f31b115172480098e77e2af715415b9e Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi