GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256a348bbfa0de185be588f81a5d09b48b2aada8e5d0f1064757734b9c64163de66
MD5cac0d5b05a53225e6da29a8790a7a7da
File Typeexe
Size97.5 KB
First Seen2022-08-30
File Namea348bbfa0de185be588f81a5d09b48b2aada8e5d0f1064757734b9c64163de66
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: a348bbfa0de185be588f81a5d09b48b2aada8e5d0f1064757734b9c64163de66
  • MD5: cac0d5b05a53225e6da29a8790a7a7da

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: a348bbfa0de185be"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "a348bbfa0de185be588f81a5d09b48b2aada8e5d0f1064757734b9c64163de66"
}

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 a348bbfa0de185be588f81a5d09b48b2aada8e5d0f1064757734b9c64163de66 # MD5 cac0d5b05a53225e6da29a8790a7a7da
TypeValueNote
sha256 a348bbfa0de185be588f81a5d09b48b2aada8e5d0f1064757734b9c64163de66 Sample:GandCrab
md5 cac0d5b05a53225e6da29a8790a7a7da Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi