GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2564283fe50589c62f3e2d23599506c16c5adc14f8a471bcffe214a48dcc8d39d17
MD525b37cd87cdbf7cf4b18d63becc1c849
File Typeexe
Size70.0 KB
First Seen2022-08-30
File Name4283fe50589c62f3e2d23599506c16c5adc14f8a471bcffe214a48dcc8d39d17
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 4283fe50589c62f3e2d23599506c16c5adc14f8a471bcffe214a48dcc8d39d17
  • MD5: 25b37cd87cdbf7cf4b18d63becc1c849

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: 4283fe50589c62f3"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "4283fe50589c62f3e2d23599506c16c5adc14f8a471bcffe214a48dcc8d39d17"
}

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 4283fe50589c62f3e2d23599506c16c5adc14f8a471bcffe214a48dcc8d39d17 # MD5 25b37cd87cdbf7cf4b18d63becc1c849
TypeValueNote
sha256 4283fe50589c62f3e2d23599506c16c5adc14f8a471bcffe214a48dcc8d39d17 Sample:GandCrab
md5 25b37cd87cdbf7cf4b18d63becc1c849 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi