GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256e1a157624257d3381db0d5b53d622daa7d60e34e5b80f2cdde517364d39095d7
MD5b4faf56099563077254efb5a611b3f51
File Typeexe
Size70.0 KB
First Seen2022-08-30
File Namee1a157624257d3381db0d5b53d622daa7d60e34e5b80f2cdde517364d39095d7
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: e1a157624257d3381db0d5b53d622daa7d60e34e5b80f2cdde517364d39095d7
  • MD5: b4faf56099563077254efb5a611b3f51

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: e1a157624257d338"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "e1a157624257d3381db0d5b53d622daa7d60e34e5b80f2cdde517364d39095d7"
}

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 e1a157624257d3381db0d5b53d622daa7d60e34e5b80f2cdde517364d39095d7 # MD5 b4faf56099563077254efb5a611b3f51
TypeValueNote
sha256 e1a157624257d3381db0d5b53d622daa7d60e34e5b80f2cdde517364d39095d7 Sample:GandCrab
md5 b4faf56099563077254efb5a611b3f51 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi