GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256cf54a8d77de9d13a8914511918235a4a0129424d71981c968d6b3b2d720e3a9f
MD5eb650f85ada01272f8f4d84110baf61e
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Namecf54a8d77de9d13a8914511918235a4a0129424d71981c968d6b3b2d720e3a9f
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: cf54a8d77de9d13a8914511918235a4a0129424d71981c968d6b3b2d720e3a9f
  • MD5: eb650f85ada01272f8f4d84110baf61e

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: cf54a8d77de9d13a"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "cf54a8d77de9d13a8914511918235a4a0129424d71981c968d6b3b2d720e3a9f"
}

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 cf54a8d77de9d13a8914511918235a4a0129424d71981c968d6b3b2d720e3a9f # MD5 eb650f85ada01272f8f4d84110baf61e
TypeValueNote
sha256 cf54a8d77de9d13a8914511918235a4a0129424d71981c968d6b3b2d720e3a9f Sample:GandCrab
md5 eb650f85ada01272f8f4d84110baf61e Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi