GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256a89ff5da7c1c949768bd1f83fede6a02363ec8082b057aa34ea627d4ac81de8a
MD5d840bd5931256bc23c634fab43dafc3e
File Typeexe
Size98.5 KB
First Seen2022-08-30
File Namea89ff5da7c1c949768bd1f83fede6a02363ec8082b057aa34ea627d4ac81de8a
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: a89ff5da7c1c949768bd1f83fede6a02363ec8082b057aa34ea627d4ac81de8a
  • MD5: d840bd5931256bc23c634fab43dafc3e

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: a89ff5da7c1c9497"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "a89ff5da7c1c949768bd1f83fede6a02363ec8082b057aa34ea627d4ac81de8a"
}

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 a89ff5da7c1c949768bd1f83fede6a02363ec8082b057aa34ea627d4ac81de8a # MD5 d840bd5931256bc23c634fab43dafc3e
TypeValueNote
sha256 a89ff5da7c1c949768bd1f83fede6a02363ec8082b057aa34ea627d4ac81de8a Sample:GandCrab
md5 d840bd5931256bc23c634fab43dafc3e Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi