GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2561c3cfd7a0e3fe80636a6b71f06a6d4b9535b6804409346e3b5e7f0d4b5894ddd
MD5a4da621635e5a4040b53f9c298b2e62c
File Typeexe
Size73.5 KB
First Seen2022-08-30
File Name1c3cfd7a0e3fe80636a6b71f06a6d4b9535b6804409346e3b5e7f0d4b5894ddd
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 1c3cfd7a0e3fe80636a6b71f06a6d4b9535b6804409346e3b5e7f0d4b5894ddd
  • MD5: a4da621635e5a4040b53f9c298b2e62c

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: 1c3cfd7a0e3fe806"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "1c3cfd7a0e3fe80636a6b71f06a6d4b9535b6804409346e3b5e7f0d4b5894ddd"
}

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 1c3cfd7a0e3fe80636a6b71f06a6d4b9535b6804409346e3b5e7f0d4b5894ddd # MD5 a4da621635e5a4040b53f9c298b2e62c
TypeValueNote
sha256 1c3cfd7a0e3fe80636a6b71f06a6d4b9535b6804409346e3b5e7f0d4b5894ddd Sample:GandCrab
md5 a4da621635e5a4040b53f9c298b2e62c Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi