GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25628dba5aeb00fffa43a4eb47156e9f8a38858e7b6a7b232bbc194dd13229caba4
MD5ec8f01d427327c9cb0c19f6cd1770236
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Name28dba5aeb00fffa43a4eb47156e9f8a38858e7b6a7b232bbc194dd13229caba4
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 28dba5aeb00fffa43a4eb47156e9f8a38858e7b6a7b232bbc194dd13229caba4
  • MD5: ec8f01d427327c9cb0c19f6cd1770236

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: 28dba5aeb00fffa4"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "28dba5aeb00fffa43a4eb47156e9f8a38858e7b6a7b232bbc194dd13229caba4"
}

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 28dba5aeb00fffa43a4eb47156e9f8a38858e7b6a7b232bbc194dd13229caba4 # MD5 ec8f01d427327c9cb0c19f6cd1770236
TypeValueNote
sha256 28dba5aeb00fffa43a4eb47156e9f8a38858e7b6a7b232bbc194dd13229caba4 Sample:GandCrab
md5 ec8f01d427327c9cb0c19f6cd1770236 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi