GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25639a010b07ac23fa7362d8599dd21df800692b3d697406d51123951486f52b7f5
MD5468e779e339b737c8e475cbe1e82853d
File Typeexe
Size70.0 KB
First Seen2022-08-30
File Name39a010b07ac23fa7362d8599dd21df800692b3d697406d51123951486f52b7f5
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 39a010b07ac23fa7362d8599dd21df800692b3d697406d51123951486f52b7f5
  • MD5: 468e779e339b737c8e475cbe1e82853d

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: 39a010b07ac23fa7"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "39a010b07ac23fa7362d8599dd21df800692b3d697406d51123951486f52b7f5"
}

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 39a010b07ac23fa7362d8599dd21df800692b3d697406d51123951486f52b7f5 # MD5 468e779e339b737c8e475cbe1e82853d
TypeValueNote
sha256 39a010b07ac23fa7362d8599dd21df800692b3d697406d51123951486f52b7f5 Sample:GandCrab
md5 468e779e339b737c8e475cbe1e82853d Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi