GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256ea4a4e522a3fcd147bf528274acd9a203782737a9abac427ed1e6ee88ab3880b
MD500a30887198af7fbebcdce39ed6759e5
File Typeexe
Size73.5 KB
First Seen2025-04-27
File Name2025-04-27_00a30887198af7fbebcdce39ed6759e5_elex_gandcrab.exe
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: ea4a4e522a3fcd147bf528274acd9a203782737a9abac427ed1e6ee88ab3880b
  • MD5: 00a30887198af7fbebcdce39ed6759e5

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: ea4a4e522a3fcd14"
        threat_level = "critical"
        first_seen = "2025-04-27"
    condition:
        hash.sha256(0, filesize) == "ea4a4e522a3fcd147bf528274acd9a203782737a9abac427ed1e6ee88ab3880b"
}

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 ea4a4e522a3fcd147bf528274acd9a203782737a9abac427ed1e6ee88ab3880b # MD5 00a30887198af7fbebcdce39ed6759e5
TypeValueNote
sha256 ea4a4e522a3fcd147bf528274acd9a203782737a9abac427ed1e6ee88ab3880b Sample:GandCrab
md5 00a30887198af7fbebcdce39ed6759e5 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi