GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256ec6a7a8737c807b3c74990ca2d8b57774841211d58d36182ed2a718f4e051dc3
MD52c590ad5c022d18658d64581d4eb22fd
File Typeexe
Size237.0 KB
First Seen2023-12-16
File Nameb9.exe
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: ec6a7a8737c807b3c74990ca2d8b57774841211d58d36182ed2a718f4e051dc3
  • MD5: 2c590ad5c022d18658d64581d4eb22fd

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: ec6a7a8737c807b3"
        threat_level = "critical"
        first_seen = "2023-12-16"
    condition:
        hash.sha256(0, filesize) == "ec6a7a8737c807b3c74990ca2d8b57774841211d58d36182ed2a718f4e051dc3"
}

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 ec6a7a8737c807b3c74990ca2d8b57774841211d58d36182ed2a718f4e051dc3 # MD5 2c590ad5c022d18658d64581d4eb22fd
TypeValueNote
sha256 ec6a7a8737c807b3c74990ca2d8b57774841211d58d36182ed2a718f4e051dc3 Sample:GandCrab
md5 2c590ad5c022d18658d64581d4eb22fd Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi