GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256d9f6f27110bfa5ba6be14ad5361d1fa53bd1615ee2a5ea860e939a3a22599ad7
MD5a745c73be5f187acaf92a7ce1a068b8b
File Typeexe
Size388.0 KB
First Seen2023-05-09
File Name2023-05-08_a745c73be5f187acaf92a7ce1a068b8b_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: d9f6f27110bfa5ba6be14ad5361d1fa53bd1615ee2a5ea860e939a3a22599ad7
  • MD5: a745c73be5f187acaf92a7ce1a068b8b

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: d9f6f27110bfa5ba"
        threat_level = "critical"
        first_seen = "2023-05-09"
    condition:
        hash.sha256(0, filesize) == "d9f6f27110bfa5ba6be14ad5361d1fa53bd1615ee2a5ea860e939a3a22599ad7"
}

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 d9f6f27110bfa5ba6be14ad5361d1fa53bd1615ee2a5ea860e939a3a22599ad7 # MD5 a745c73be5f187acaf92a7ce1a068b8b
TypeValueNote
sha256 d9f6f27110bfa5ba6be14ad5361d1fa53bd1615ee2a5ea860e939a3a22599ad7 Sample:GandCrab
md5 a745c73be5f187acaf92a7ce1a068b8b Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi