GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2564421da4a5cd18268eb57b9abec4c044ee810c13923235e1da791784289b80186
MD5fa6cf510d2bcc0878abf0f5e835f7e6d
File Typeexe
Size70.0 KB
First Seen2022-08-30
File Name4421da4a5cd18268eb57b9abec4c044ee810c13923235e1da791784289b80186
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: 4421da4a5cd18268eb57b9abec4c044ee810c13923235e1da791784289b80186
  • MD5: fa6cf510d2bcc0878abf0f5e835f7e6d

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: 4421da4a5cd18268"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "4421da4a5cd18268eb57b9abec4c044ee810c13923235e1da791784289b80186"
}

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 4421da4a5cd18268eb57b9abec4c044ee810c13923235e1da791784289b80186 # MD5 fa6cf510d2bcc0878abf0f5e835f7e6d
TypeValueNote
sha256 4421da4a5cd18268eb57b9abec4c044ee810c13923235e1da791784289b80186 Sample:GandCrab
md5 fa6cf510d2bcc0878abf0f5e835f7e6d Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi