GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25687bde727af7beabcb4d733a41d258ee407d6e977e78c06a96ba2295431d53c23
MD5f7fc1d813907f416595eac64d7d986c6
File Typeexe
Size73.5 KB
First Seen2023-08-06
File Name2023-08-05_f7fc1d813907f416595eac64d7d986c6_gandcrab
TagsGandcrab

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: 87bde727af7beabcb4d733a41d258ee407d6e977e78c06a96ba2295431d53c23
  • MD5: f7fc1d813907f416595eac64d7d986c6

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: 87bde727af7beabc"
        threat_level = "critical"
        first_seen = "2023-08-06"
    condition:
        hash.sha256(0, filesize) == "87bde727af7beabcb4d733a41d258ee407d6e977e78c06a96ba2295431d53c23"
}

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 87bde727af7beabcb4d733a41d258ee407d6e977e78c06a96ba2295431d53c23 # MD5 f7fc1d813907f416595eac64d7d986c6
TypeValueNote
sha256 87bde727af7beabcb4d733a41d258ee407d6e977e78c06a96ba2295431d53c23 Sample:GandCrab
md5 f7fc1d813907f416595eac64d7d986c6 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi