GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25681998d1c7c647858cfed271d3f02fb9699b61c7926cae3eef3efb8d5408f499f
MD53e794f521c76bdf996abcffa1f60623c
File Typeexe
Size73.5 KB
First Seen2022-08-30
File Name81998d1c7c647858cfed271d3f02fb9699b61c7926cae3eef3efb8d5408f499f
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 81998d1c7c647858cfed271d3f02fb9699b61c7926cae3eef3efb8d5408f499f
  • MD5: 3e794f521c76bdf996abcffa1f60623c

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: 81998d1c7c647858"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "81998d1c7c647858cfed271d3f02fb9699b61c7926cae3eef3efb8d5408f499f"
}

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 81998d1c7c647858cfed271d3f02fb9699b61c7926cae3eef3efb8d5408f499f # MD5 3e794f521c76bdf996abcffa1f60623c
TypeValueNote
sha256 81998d1c7c647858cfed271d3f02fb9699b61c7926cae3eef3efb8d5408f499f Sample:GandCrab
md5 3e794f521c76bdf996abcffa1f60623c Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi