GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25627111a1c877e90a66e6ad29c2f94d05f03659d8e7c1e6d37ec2efadfd1c055a5
MD5e10a2d2e8ca5f56faa1608941e5bae1a
File Typeexe
Size70.0 KB
First Seen2023-03-08
File Name2023-03-07_e10a2d2e8ca5f56faa1608941e5bae1a_gandcrab
TagsGandcrab

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: 27111a1c877e90a66e6ad29c2f94d05f03659d8e7c1e6d37ec2efadfd1c055a5
  • MD5: e10a2d2e8ca5f56faa1608941e5bae1a

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: 27111a1c877e90a6"
        threat_level = "critical"
        first_seen = "2023-03-08"
    condition:
        hash.sha256(0, filesize) == "27111a1c877e90a66e6ad29c2f94d05f03659d8e7c1e6d37ec2efadfd1c055a5"
}

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 27111a1c877e90a66e6ad29c2f94d05f03659d8e7c1e6d37ec2efadfd1c055a5 # MD5 e10a2d2e8ca5f56faa1608941e5bae1a
TypeValueNote
sha256 27111a1c877e90a66e6ad29c2f94d05f03659d8e7c1e6d37ec2efadfd1c055a5 Sample:GandCrab
md5 e10a2d2e8ca5f56faa1608941e5bae1a Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi