GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25631bd2337e2938380a438256a5ae83b9f97778a9a1ec6c1f1c5475dca91e957e7
MD59c0fef89b3da235ddace7a87abaa257e
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Name31bd2337e2938380a438256a5ae83b9f97778a9a1ec6c1f1c5475dca91e957e7
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 31bd2337e2938380a438256a5ae83b9f97778a9a1ec6c1f1c5475dca91e957e7
  • MD5: 9c0fef89b3da235ddace7a87abaa257e

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: 31bd2337e2938380"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "31bd2337e2938380a438256a5ae83b9f97778a9a1ec6c1f1c5475dca91e957e7"
}

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 31bd2337e2938380a438256a5ae83b9f97778a9a1ec6c1f1c5475dca91e957e7 # MD5 9c0fef89b3da235ddace7a87abaa257e
TypeValueNote
sha256 31bd2337e2938380a438256a5ae83b9f97778a9a1ec6c1f1c5475dca91e957e7 Sample:GandCrab
md5 9c0fef89b3da235ddace7a87abaa257e Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi