GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25688a3c439a9525bbee09c2ee1bb512c695f875dc2f1894b28fc09dd86318bdd71
MD56dca2c54d7baba516d78bd7bb4e9a56e
File Typeexe
Size73.5 KB
First Seen2022-08-30
File Name88a3c439a9525bbee09c2ee1bb512c695f875dc2f1894b28fc09dd86318bdd71
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 88a3c439a9525bbee09c2ee1bb512c695f875dc2f1894b28fc09dd86318bdd71
  • MD5: 6dca2c54d7baba516d78bd7bb4e9a56e

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: 88a3c439a9525bbe"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "88a3c439a9525bbee09c2ee1bb512c695f875dc2f1894b28fc09dd86318bdd71"
}

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 88a3c439a9525bbee09c2ee1bb512c695f875dc2f1894b28fc09dd86318bdd71 # MD5 6dca2c54d7baba516d78bd7bb4e9a56e
TypeValueNote
sha256 88a3c439a9525bbee09c2ee1bb512c695f875dc2f1894b28fc09dd86318bdd71 Sample:GandCrab
md5 6dca2c54d7baba516d78bd7bb4e9a56e Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi