GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256f4aa5276377672a77e3f11e5f69d54d836ab337a3f016683628511d59d864441
MD513996f5f07170207d5fd818c2521fbe5
File Typeexe
Size73.5 KB
First Seen2022-08-30
File Namef4aa5276377672a77e3f11e5f69d54d836ab337a3f016683628511d59d864441
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

TypeRansomware
Programming LanguageC
Target PlatformWindows
C2 ProtocolHTTP
PurposeMaaS ransomware
First Seen Year2018

Threat Indicators (IOC)

  • SHA256: f4aa5276377672a77e3f11e5f69d54d836ab337a3f016683628511d59d864441
  • MD5: 13996f5f07170207d5fd818c2521fbe5

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: f4aa5276377672a7"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "f4aa5276377672a77e3f11e5f69d54d836ab337a3f016683628511d59d864441"
}

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 f4aa5276377672a77e3f11e5f69d54d836ab337a3f016683628511d59d864441 # MD5 13996f5f07170207d5fd818c2521fbe5
TypeValueNote
sha256 f4aa5276377672a77e3f11e5f69d54d836ab337a3f016683628511d59d864441 Sample:GandCrab
md5 13996f5f07170207d5fd818c2521fbe5 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi