GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2561f4c958b524f7abb12d6463eb905e7ceaff382cbe6777935c8390f0d74a6df47
MD529fc778bc160883c02cd140a38858d00
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Name1f4c958b524f7abb12d6463eb905e7ceaff382cbe6777935c8390f0d74a6df47
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 1f4c958b524f7abb12d6463eb905e7ceaff382cbe6777935c8390f0d74a6df47
  • MD5: 29fc778bc160883c02cd140a38858d00

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: 1f4c958b524f7abb"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "1f4c958b524f7abb12d6463eb905e7ceaff382cbe6777935c8390f0d74a6df47"
}

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 1f4c958b524f7abb12d6463eb905e7ceaff382cbe6777935c8390f0d74a6df47 # MD5 29fc778bc160883c02cd140a38858d00
TypeValueNote
sha256 1f4c958b524f7abb12d6463eb905e7ceaff382cbe6777935c8390f0d74a6df47 Sample:GandCrab
md5 29fc778bc160883c02cd140a38858d00 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi