GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25699ec4b4d51604db3283058208f9e4a09bf2e8bdf4eab0eb46b7f502103c1d332
MD59acd783a26c8db4cf664614832eef677
File Typeexe
Size196.5 KB
First Seen2022-08-30
File Name99ec4b4d51604db3283058208f9e4a09bf2e8bdf4eab0eb46b7f502103c1d332
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: 99ec4b4d51604db3283058208f9e4a09bf2e8bdf4eab0eb46b7f502103c1d332
  • MD5: 9acd783a26c8db4cf664614832eef677

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: 99ec4b4d51604db3"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "99ec4b4d51604db3283058208f9e4a09bf2e8bdf4eab0eb46b7f502103c1d332"
}

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 99ec4b4d51604db3283058208f9e4a09bf2e8bdf4eab0eb46b7f502103c1d332 # MD5 9acd783a26c8db4cf664614832eef677
TypeValueNote
sha256 99ec4b4d51604db3283058208f9e4a09bf2e8bdf4eab0eb46b7f502103c1d332 Sample:GandCrab
md5 9acd783a26c8db4cf664614832eef677 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi