GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256c30f6a1e5c9501b6e2dfae5c6c4e521438c3c7da795346ae9e05a75bf010684d
MD5ab051235b854ce3d7729a275b5833a5f
File Typeexe
Size492.6 KB
First Seen2022-09-21
File NameTrojan-Ransom.MSIL.Agent.abn-c30f6a1e5c9501b6e2dfae5c6c4e521438c3c7da795346ae9e05a75bf010684d
Tagsexe, Gandcrab, Ransomware

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: c30f6a1e5c9501b6e2dfae5c6c4e521438c3c7da795346ae9e05a75bf010684d
  • MD5: ab051235b854ce3d7729a275b5833a5f

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: c30f6a1e5c9501b6"
        threat_level = "critical"
        first_seen = "2022-09-21"
    condition:
        hash.sha256(0, filesize) == "c30f6a1e5c9501b6e2dfae5c6c4e521438c3c7da795346ae9e05a75bf010684d"
}

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 c30f6a1e5c9501b6e2dfae5c6c4e521438c3c7da795346ae9e05a75bf010684d # MD5 ab051235b854ce3d7729a275b5833a5f
TypeValueNote
sha256 c30f6a1e5c9501b6e2dfae5c6c4e521438c3c7da795346ae9e05a75bf010684d Sample:GandCrab
md5 ab051235b854ce3d7729a275b5833a5f Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi