GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25627fa9bea90b42da537e912f37689a615f57d359074659086463bf86af82dfc77
MD5bfea5951c4ab32379c2e7063da5af0e9
File Typeexe
Size73.5 KB
First Seen2022-08-30
File Name27fa9bea90b42da537e912f37689a615f57d359074659086463bf86af82dfc77
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 27fa9bea90b42da537e912f37689a615f57d359074659086463bf86af82dfc77
  • MD5: bfea5951c4ab32379c2e7063da5af0e9

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: 27fa9bea90b42da5"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "27fa9bea90b42da537e912f37689a615f57d359074659086463bf86af82dfc77"
}

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 27fa9bea90b42da537e912f37689a615f57d359074659086463bf86af82dfc77 # MD5 bfea5951c4ab32379c2e7063da5af0e9
TypeValueNote
sha256 27fa9bea90b42da537e912f37689a615f57d359074659086463bf86af82dfc77 Sample:GandCrab
md5 bfea5951c4ab32379c2e7063da5af0e9 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi