GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25629f4f953bba36fccab2711a02d52cd0b8854f3777802d1897e4ee0123625ab0c
MD5d477dff086f71fb024575c69b0062ce3
File Typeexe
Size70.0 KB
First Seen2022-08-30
File Name29f4f953bba36fccab2711a02d52cd0b8854f3777802d1897e4ee0123625ab0c
Tagsexe, Gandcrab

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: 29f4f953bba36fccab2711a02d52cd0b8854f3777802d1897e4ee0123625ab0c
  • MD5: d477dff086f71fb024575c69b0062ce3

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: 29f4f953bba36fcc"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "29f4f953bba36fccab2711a02d52cd0b8854f3777802d1897e4ee0123625ab0c"
}

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 29f4f953bba36fccab2711a02d52cd0b8854f3777802d1897e4ee0123625ab0c # MD5 d477dff086f71fb024575c69b0062ce3
TypeValueNote
sha256 29f4f953bba36fccab2711a02d52cd0b8854f3777802d1897e4ee0123625ab0c Sample:GandCrab
md5 d477dff086f71fb024575c69b0062ce3 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi