GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256efa64e9fb576fe5eecbf40430358c214dc75232ff3d5c1152f21c78bdc30718b
MD52cb592bd11df1ecfc0c181200819cfcc
File Typeexe
Size73.5 KB
First Seen2022-08-30
File Nameefa64e9fb576fe5eecbf40430358c214dc75232ff3d5c1152f21c78bdc30718b
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: efa64e9fb576fe5eecbf40430358c214dc75232ff3d5c1152f21c78bdc30718b
  • MD5: 2cb592bd11df1ecfc0c181200819cfcc

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: efa64e9fb576fe5e"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "efa64e9fb576fe5eecbf40430358c214dc75232ff3d5c1152f21c78bdc30718b"
}

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 efa64e9fb576fe5eecbf40430358c214dc75232ff3d5c1152f21c78bdc30718b # MD5 2cb592bd11df1ecfc0c181200819cfcc
TypeValueNote
sha256 efa64e9fb576fe5eecbf40430358c214dc75232ff3d5c1152f21c78bdc30718b Sample:GandCrab
md5 2cb592bd11df1ecfc0c181200819cfcc Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi