GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256b31102d14b4ab331fc3f9df9e9f7835ed2ab62add65d6146c0358b63d85b66e0
MD53789e9dc33207db6c01ec2320ac174ad
File Typeexe
Size70.0 KB
First Seen2022-08-30
File Nameb31102d14b4ab331fc3f9df9e9f7835ed2ab62add65d6146c0358b63d85b66e0
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: b31102d14b4ab331fc3f9df9e9f7835ed2ab62add65d6146c0358b63d85b66e0
  • MD5: 3789e9dc33207db6c01ec2320ac174ad

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: b31102d14b4ab331"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "b31102d14b4ab331fc3f9df9e9f7835ed2ab62add65d6146c0358b63d85b66e0"
}

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 b31102d14b4ab331fc3f9df9e9f7835ed2ab62add65d6146c0358b63d85b66e0 # MD5 3789e9dc33207db6c01ec2320ac174ad
TypeValueNote
sha256 b31102d14b4ab331fc3f9df9e9f7835ed2ab62add65d6146c0358b63d85b66e0 Sample:GandCrab
md5 3789e9dc33207db6c01ec2320ac174ad Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi