GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25627f49e84263f168f7ebaee6f222f92f6737cdcfa50930145d98509b3b24fadc1
MD5b8c6fb450ef9db8b6b64edf0ade8954b
File Typeexe
Size73.5 KB
First Seen2022-08-30
File Name27f49e84263f168f7ebaee6f222f92f6737cdcfa50930145d98509b3b24fadc1
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 27f49e84263f168f7ebaee6f222f92f6737cdcfa50930145d98509b3b24fadc1
  • MD5: b8c6fb450ef9db8b6b64edf0ade8954b

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: 27f49e84263f168f"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "27f49e84263f168f7ebaee6f222f92f6737cdcfa50930145d98509b3b24fadc1"
}

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 27f49e84263f168f7ebaee6f222f92f6737cdcfa50930145d98509b3b24fadc1 # MD5 b8c6fb450ef9db8b6b64edf0ade8954b
TypeValueNote
sha256 27f49e84263f168f7ebaee6f222f92f6737cdcfa50930145d98509b3b24fadc1 Sample:GandCrab
md5 b8c6fb450ef9db8b6b64edf0ade8954b Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi