GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256aa80f9053e931e58d931cfb05cb6a1fe8878e889b07068b4ebb8886746ddeb9d
MD5681cbc98035d873cdeaf980a2ce0d266
File Typeexe
Size70.0 KB
First Seen2022-08-30
File Nameaa80f9053e931e58d931cfb05cb6a1fe8878e889b07068b4ebb8886746ddeb9d
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: aa80f9053e931e58d931cfb05cb6a1fe8878e889b07068b4ebb8886746ddeb9d
  • MD5: 681cbc98035d873cdeaf980a2ce0d266

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: aa80f9053e931e58"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "aa80f9053e931e58d931cfb05cb6a1fe8878e889b07068b4ebb8886746ddeb9d"
}

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 aa80f9053e931e58d931cfb05cb6a1fe8878e889b07068b4ebb8886746ddeb9d # MD5 681cbc98035d873cdeaf980a2ce0d266
TypeValueNote
sha256 aa80f9053e931e58d931cfb05cb6a1fe8878e889b07068b4ebb8886746ddeb9d Sample:GandCrab
md5 681cbc98035d873cdeaf980a2ce0d266 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi