GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256d77e059f88b88e9117144c70451eacbec892101f93d13a513b18dc5b82c3bac6
MD579252e6e7cd2cb7d23054b161f973483
File Typeexe
Size87.2 KB
First Seen2022-08-30
File Named77e059f88b88e9117144c70451eacbec892101f93d13a513b18dc5b82c3bac6
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: d77e059f88b88e9117144c70451eacbec892101f93d13a513b18dc5b82c3bac6
  • MD5: 79252e6e7cd2cb7d23054b161f973483

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: d77e059f88b88e91"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "d77e059f88b88e9117144c70451eacbec892101f93d13a513b18dc5b82c3bac6"
}

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 d77e059f88b88e9117144c70451eacbec892101f93d13a513b18dc5b82c3bac6 # MD5 79252e6e7cd2cb7d23054b161f973483
TypeValueNote
sha256 d77e059f88b88e9117144c70451eacbec892101f93d13a513b18dc5b82c3bac6 Sample:GandCrab
md5 79252e6e7cd2cb7d23054b161f973483 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi