GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256b721e121d0657302f7e8d790d107e512f5f726ae6a827cdc960d3a838825906a
MD51705bd6b4c7a2fa4a046c5a7b2a0a8f6
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Nameb721e121d0657302f7e8d790d107e512f5f726ae6a827cdc960d3a838825906a
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: b721e121d0657302f7e8d790d107e512f5f726ae6a827cdc960d3a838825906a
  • MD5: 1705bd6b4c7a2fa4a046c5a7b2a0a8f6

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: b721e121d0657302"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "b721e121d0657302f7e8d790d107e512f5f726ae6a827cdc960d3a838825906a"
}

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 b721e121d0657302f7e8d790d107e512f5f726ae6a827cdc960d3a838825906a # MD5 1705bd6b4c7a2fa4a046c5a7b2a0a8f6
TypeValueNote
sha256 b721e121d0657302f7e8d790d107e512f5f726ae6a827cdc960d3a838825906a Sample:GandCrab
md5 1705bd6b4c7a2fa4a046c5a7b2a0a8f6 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi