GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256967ed89294b03aacb33787fd4fcce1c98c88cf361777320c2437d31039bd98f2
MD5ef40bf31c8c01ee92f7bf1241972dad2
File Typeexe
Size70.0 KB
First Seen2022-08-30
File Name967ed89294b03aacb33787fd4fcce1c98c88cf361777320c2437d31039bd98f2
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: 967ed89294b03aacb33787fd4fcce1c98c88cf361777320c2437d31039bd98f2
  • MD5: ef40bf31c8c01ee92f7bf1241972dad2

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: 967ed89294b03aac"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "967ed89294b03aacb33787fd4fcce1c98c88cf361777320c2437d31039bd98f2"
}

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 967ed89294b03aacb33787fd4fcce1c98c88cf361777320c2437d31039bd98f2 # MD5 ef40bf31c8c01ee92f7bf1241972dad2
TypeValueNote
sha256 967ed89294b03aacb33787fd4fcce1c98c88cf361777320c2437d31039bd98f2 Sample:GandCrab
md5 ef40bf31c8c01ee92f7bf1241972dad2 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi