GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256ef6f36f81b55e7c3b2f1f73d1ff17c934e25226552e3113d33c3229893a64ace
MD59430125ff80a6ed8ab753254c3acae76
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Nameef6f36f81b55e7c3b2f1f73d1ff17c934e25226552e3113d33c3229893a64ace
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: ef6f36f81b55e7c3b2f1f73d1ff17c934e25226552e3113d33c3229893a64ace
  • MD5: 9430125ff80a6ed8ab753254c3acae76

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: ef6f36f81b55e7c3"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "ef6f36f81b55e7c3b2f1f73d1ff17c934e25226552e3113d33c3229893a64ace"
}

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 ef6f36f81b55e7c3b2f1f73d1ff17c934e25226552e3113d33c3229893a64ace # MD5 9430125ff80a6ed8ab753254c3acae76
TypeValueNote
sha256 ef6f36f81b55e7c3b2f1f73d1ff17c934e25226552e3113d33c3229893a64ace Sample:GandCrab
md5 9430125ff80a6ed8ab753254c3acae76 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi