GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256de8f9564cf81e7d02c6a1d08e0b9b6938b7a098a44422feca3c0e5f58f26d38e
MD5a07bbc85d4a891e0c154aeb747d41491
File Typeexe
Size97.5 KB
First Seen2022-08-30
File Namede8f9564cf81e7d02c6a1d08e0b9b6938b7a098a44422feca3c0e5f58f26d38e
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: de8f9564cf81e7d02c6a1d08e0b9b6938b7a098a44422feca3c0e5f58f26d38e
  • MD5: a07bbc85d4a891e0c154aeb747d41491

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: de8f9564cf81e7d0"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "de8f9564cf81e7d02c6a1d08e0b9b6938b7a098a44422feca3c0e5f58f26d38e"
}

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 de8f9564cf81e7d02c6a1d08e0b9b6938b7a098a44422feca3c0e5f58f26d38e # MD5 a07bbc85d4a891e0c154aeb747d41491
TypeValueNote
sha256 de8f9564cf81e7d02c6a1d08e0b9b6938b7a098a44422feca3c0e5f58f26d38e Sample:GandCrab
md5 a07bbc85d4a891e0c154aeb747d41491 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi