GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256b59b45da52ec981d29491ac0f3282a5c877dcc43f5dcbef7e5a86cc40b935f63
MD5ad6a963bc9736f73a9039a891e64ad95
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Nameb59b45da52ec981d29491ac0f3282a5c877dcc43f5dcbef7e5a86cc40b935f63
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: b59b45da52ec981d29491ac0f3282a5c877dcc43f5dcbef7e5a86cc40b935f63
  • MD5: ad6a963bc9736f73a9039a891e64ad95

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: b59b45da52ec981d"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "b59b45da52ec981d29491ac0f3282a5c877dcc43f5dcbef7e5a86cc40b935f63"
}

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 b59b45da52ec981d29491ac0f3282a5c877dcc43f5dcbef7e5a86cc40b935f63 # MD5 ad6a963bc9736f73a9039a891e64ad95
TypeValueNote
sha256 b59b45da52ec981d29491ac0f3282a5c877dcc43f5dcbef7e5a86cc40b935f63 Sample:GandCrab
md5 ad6a963bc9736f73a9039a891e64ad95 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi