GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25644a2da6fb4272c984a16d9b8b281095fcdde2ffd26a6039762fd2db0d8d97a46
MD55391dc15edc5f92f4905434f930cdf6d
File Typeexe
Size257.0 KB
First Seen2024-05-11
File Namerans-unpacked.exe
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: 44a2da6fb4272c984a16d9b8b281095fcdde2ffd26a6039762fd2db0d8d97a46
  • MD5: 5391dc15edc5f92f4905434f930cdf6d

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: 44a2da6fb4272c98"
        threat_level = "critical"
        first_seen = "2024-05-11"
    condition:
        hash.sha256(0, filesize) == "44a2da6fb4272c984a16d9b8b281095fcdde2ffd26a6039762fd2db0d8d97a46"
}

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 44a2da6fb4272c984a16d9b8b281095fcdde2ffd26a6039762fd2db0d8d97a46 # MD5 5391dc15edc5f92f4905434f930cdf6d
TypeValueNote
sha256 44a2da6fb4272c984a16d9b8b281095fcdde2ffd26a6039762fd2db0d8d97a46 Sample:GandCrab
md5 5391dc15edc5f92f4905434f930cdf6d Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi