GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25642397fcd80b9266b2239623d18e62b914262eed679a5dab57cc36c73c7285771
MD5a04256a5899cc1daecf1b8dab66e1d10
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Name42397fcd80b9266b2239623d18e62b914262eed679a5dab57cc36c73c7285771
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 42397fcd80b9266b2239623d18e62b914262eed679a5dab57cc36c73c7285771
  • MD5: a04256a5899cc1daecf1b8dab66e1d10

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: 42397fcd80b9266b"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "42397fcd80b9266b2239623d18e62b914262eed679a5dab57cc36c73c7285771"
}

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 42397fcd80b9266b2239623d18e62b914262eed679a5dab57cc36c73c7285771 # MD5 a04256a5899cc1daecf1b8dab66e1d10
TypeValueNote
sha256 42397fcd80b9266b2239623d18e62b914262eed679a5dab57cc36c73c7285771 Sample:GandCrab
md5 a04256a5899cc1daecf1b8dab66e1d10 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi