GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256b791b97ddfaad96b1d97a827ca7267bb391834f1f7a184b67b2502b849a71076
MD552d7e2e1e29fbbda2d135383c39fb707
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Nameb791b97ddfaad96b1d97a827ca7267bb391834f1f7a184b67b2502b849a71076
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: b791b97ddfaad96b1d97a827ca7267bb391834f1f7a184b67b2502b849a71076
  • MD5: 52d7e2e1e29fbbda2d135383c39fb707

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: b791b97ddfaad96b"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "b791b97ddfaad96b1d97a827ca7267bb391834f1f7a184b67b2502b849a71076"
}

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 b791b97ddfaad96b1d97a827ca7267bb391834f1f7a184b67b2502b849a71076 # MD5 52d7e2e1e29fbbda2d135383c39fb707
TypeValueNote
sha256 b791b97ddfaad96b1d97a827ca7267bb391834f1f7a184b67b2502b849a71076 Sample:GandCrab
md5 52d7e2e1e29fbbda2d135383c39fb707 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi