GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2560400e0f6d0075051aa9e2e1186fe0d79739e8441827a9942148b5a24931e3f2c
MD58eed604dc104d2d82cf1a4f0865cdb20
File Typeexe
Size73.5 KB
First Seen2025-04-27
File Name250427-x989zsytgy.bin
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: 0400e0f6d0075051aa9e2e1186fe0d79739e8441827a9942148b5a24931e3f2c
  • MD5: 8eed604dc104d2d82cf1a4f0865cdb20

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: 0400e0f6d0075051"
        threat_level = "critical"
        first_seen = "2025-04-27"
    condition:
        hash.sha256(0, filesize) == "0400e0f6d0075051aa9e2e1186fe0d79739e8441827a9942148b5a24931e3f2c"
}

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 0400e0f6d0075051aa9e2e1186fe0d79739e8441827a9942148b5a24931e3f2c # MD5 8eed604dc104d2d82cf1a4f0865cdb20
TypeValueNote
sha256 0400e0f6d0075051aa9e2e1186fe0d79739e8441827a9942148b5a24931e3f2c Sample:GandCrab
md5 8eed604dc104d2d82cf1a4f0865cdb20 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi