GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256a84be4c85f1ad2d4e314c5fbe73df05b95391ed24ef8ad3f9f78d6813fa6b325
MD5d1387b14d9fcb5e063ba08240205e627
File Typeexe
Size73.5 KB
First Seen2022-08-30
File Namea84be4c85f1ad2d4e314c5fbe73df05b95391ed24ef8ad3f9f78d6813fa6b325
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: a84be4c85f1ad2d4e314c5fbe73df05b95391ed24ef8ad3f9f78d6813fa6b325
  • MD5: d1387b14d9fcb5e063ba08240205e627

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: a84be4c85f1ad2d4"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "a84be4c85f1ad2d4e314c5fbe73df05b95391ed24ef8ad3f9f78d6813fa6b325"
}

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 a84be4c85f1ad2d4e314c5fbe73df05b95391ed24ef8ad3f9f78d6813fa6b325 # MD5 d1387b14d9fcb5e063ba08240205e627
TypeValueNote
sha256 a84be4c85f1ad2d4e314c5fbe73df05b95391ed24ef8ad3f9f78d6813fa6b325 Sample:GandCrab
md5 d1387b14d9fcb5e063ba08240205e627 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi