GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256138a83026b9c33df6b8f36031d31d5c76a255ca2d924a1538b3c8fbe9c4447b5
MD586a54074f152a2d9bb0e5545925f2fe5
File Typeexe
Size70.0 KB
First Seen2022-08-30
File Name138a83026b9c33df6b8f36031d31d5c76a255ca2d924a1538b3c8fbe9c4447b5
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 138a83026b9c33df6b8f36031d31d5c76a255ca2d924a1538b3c8fbe9c4447b5
  • MD5: 86a54074f152a2d9bb0e5545925f2fe5

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: 138a83026b9c33df"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "138a83026b9c33df6b8f36031d31d5c76a255ca2d924a1538b3c8fbe9c4447b5"
}

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 138a83026b9c33df6b8f36031d31d5c76a255ca2d924a1538b3c8fbe9c4447b5 # MD5 86a54074f152a2d9bb0e5545925f2fe5
TypeValueNote
sha256 138a83026b9c33df6b8f36031d31d5c76a255ca2d924a1538b3c8fbe9c4447b5 Sample:GandCrab
md5 86a54074f152a2d9bb0e5545925f2fe5 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi