GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256a8826a2e506b0355f02c99102cfa1766c7d27846f00a56e8a3b90d7ea13540c2
MD52c784da72b561fb2a305a6db084a3ba4
File Typeexe
Size70.0 KB
First Seen2022-08-30
File Namea8826a2e506b0355f02c99102cfa1766c7d27846f00a56e8a3b90d7ea13540c2
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: a8826a2e506b0355f02c99102cfa1766c7d27846f00a56e8a3b90d7ea13540c2
  • MD5: 2c784da72b561fb2a305a6db084a3ba4

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: a8826a2e506b0355"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "a8826a2e506b0355f02c99102cfa1766c7d27846f00a56e8a3b90d7ea13540c2"
}

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 a8826a2e506b0355f02c99102cfa1766c7d27846f00a56e8a3b90d7ea13540c2 # MD5 2c784da72b561fb2a305a6db084a3ba4
TypeValueNote
sha256 a8826a2e506b0355f02c99102cfa1766c7d27846f00a56e8a3b90d7ea13540c2 Sample:GandCrab
md5 2c784da72b561fb2a305a6db084a3ba4 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi