GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2561e56efa7243a1d6456e47a8736751a3e338c837a1f1e27da3ca804544df41fba
MD53031071c4a4b9c780bcc794fecf5c62b
File Typeexe
Size16384.0 KB
First Seen2023-05-09
File Name2023-05-08_3031071c4a4b9c780bcc794fecf5c62b_gandcrab
TagsGandcrab

Malware Family: GandCrab

GandCrab, en yaygın eski ransomware'dir.

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

Threat Indicators (IOC)

  • SHA256: 1e56efa7243a1d6456e47a8736751a3e338c837a1f1e27da3ca804544df41fba
  • MD5: 3031071c4a4b9c780bcc794fecf5c62b

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: 1e56efa7243a1d64"
        threat_level = "critical"
        first_seen = "2023-05-09"
    condition:
        hash.sha256(0, filesize) == "1e56efa7243a1d6456e47a8736751a3e338c837a1f1e27da3ca804544df41fba"
}

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 1e56efa7243a1d6456e47a8736751a3e338c837a1f1e27da3ca804544df41fba # MD5 3031071c4a4b9c780bcc794fecf5c62b
TypeValueNote
sha256 1e56efa7243a1d6456e47a8736751a3e338c837a1f1e27da3ca804544df41fba Sample:GandCrab
md5 3031071c4a4b9c780bcc794fecf5c62b Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi