GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256a6efcff99bb046ec79daf4f39fc1024c7ef328017ef6953f0d61ae6ea7566e34
MD52c3a23ab1209a530920dbd4e0c697c5e
File Typeexe
Size97.5 KB
First Seen2022-08-30
File Namea6efcff99bb046ec79daf4f39fc1024c7ef328017ef6953f0d61ae6ea7566e34
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: a6efcff99bb046ec79daf4f39fc1024c7ef328017ef6953f0d61ae6ea7566e34
  • MD5: 2c3a23ab1209a530920dbd4e0c697c5e

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: a6efcff99bb046ec"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "a6efcff99bb046ec79daf4f39fc1024c7ef328017ef6953f0d61ae6ea7566e34"
}

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 a6efcff99bb046ec79daf4f39fc1024c7ef328017ef6953f0d61ae6ea7566e34 # MD5 2c3a23ab1209a530920dbd4e0c697c5e
TypeValueNote
sha256 a6efcff99bb046ec79daf4f39fc1024c7ef328017ef6953f0d61ae6ea7566e34 Sample:GandCrab
md5 2c3a23ab1209a530920dbd4e0c697c5e Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi