GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25649cbdcc5fd20aefdb5e1415e1c8a1132e9a25e4c0ca97ca0d25f04aa23fe605c
MD5b28ae8dc3b210096c8de53eee7b50e2d
File Typeexe
Size69.5 KB
First Seen2025-04-26
File Name250426-1fm2faslz2.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: 49cbdcc5fd20aefdb5e1415e1c8a1132e9a25e4c0ca97ca0d25f04aa23fe605c
  • MD5: b28ae8dc3b210096c8de53eee7b50e2d

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: 49cbdcc5fd20aefd"
        threat_level = "critical"
        first_seen = "2025-04-26"
    condition:
        hash.sha256(0, filesize) == "49cbdcc5fd20aefdb5e1415e1c8a1132e9a25e4c0ca97ca0d25f04aa23fe605c"
}

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 49cbdcc5fd20aefdb5e1415e1c8a1132e9a25e4c0ca97ca0d25f04aa23fe605c # MD5 b28ae8dc3b210096c8de53eee7b50e2d
TypeValueNote
sha256 49cbdcc5fd20aefdb5e1415e1c8a1132e9a25e4c0ca97ca0d25f04aa23fe605c Sample:GandCrab
md5 b28ae8dc3b210096c8de53eee7b50e2d Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi