GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25615dc4e6f86afa4b0dcdde31cf08006b7a4f28356a30db79d21ec06b15649d6e5
MD5b9787d2a6f350182400b284dc6febdc3
File Typeexe
Size70.0 KB
First Seen2022-08-30
File Name15dc4e6f86afa4b0dcdde31cf08006b7a4f28356a30db79d21ec06b15649d6e5
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 15dc4e6f86afa4b0dcdde31cf08006b7a4f28356a30db79d21ec06b15649d6e5
  • MD5: b9787d2a6f350182400b284dc6febdc3

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: 15dc4e6f86afa4b0"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "15dc4e6f86afa4b0dcdde31cf08006b7a4f28356a30db79d21ec06b15649d6e5"
}

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 15dc4e6f86afa4b0dcdde31cf08006b7a4f28356a30db79d21ec06b15649d6e5 # MD5 b9787d2a6f350182400b284dc6febdc3
TypeValueNote
sha256 15dc4e6f86afa4b0dcdde31cf08006b7a4f28356a30db79d21ec06b15649d6e5 Sample:GandCrab
md5 b9787d2a6f350182400b284dc6febdc3 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi