GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256a47670a4396a9aa8af0af821695a0fe3947c180bf39da682ac1c8510391afd78
MD518a534d4c8ecafff6cabb595925229cc
File Typeexe
Size70.0 KB
First Seen2022-08-30
File Namea47670a4396a9aa8af0af821695a0fe3947c180bf39da682ac1c8510391afd78
Tagsexe, Gandcrab

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: a47670a4396a9aa8af0af821695a0fe3947c180bf39da682ac1c8510391afd78
  • MD5: 18a534d4c8ecafff6cabb595925229cc

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: a47670a4396a9aa8"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "a47670a4396a9aa8af0af821695a0fe3947c180bf39da682ac1c8510391afd78"
}

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 a47670a4396a9aa8af0af821695a0fe3947c180bf39da682ac1c8510391afd78 # MD5 18a534d4c8ecafff6cabb595925229cc
TypeValueNote
sha256 a47670a4396a9aa8af0af821695a0fe3947c180bf39da682ac1c8510391afd78 Sample:GandCrab
md5 18a534d4c8ecafff6cabb595925229cc Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi