GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25637898777b390688fab1701ace3b3a291e7d38be7cbd7dabdc5f372366710b3c3
MD5b2b153ca2eb4f90b9bb2d1e6c3e30785
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Name37898777b390688fab1701ace3b3a291e7d38be7cbd7dabdc5f372366710b3c3
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 37898777b390688fab1701ace3b3a291e7d38be7cbd7dabdc5f372366710b3c3
  • MD5: b2b153ca2eb4f90b9bb2d1e6c3e30785

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: 37898777b390688f"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "37898777b390688fab1701ace3b3a291e7d38be7cbd7dabdc5f372366710b3c3"
}

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 37898777b390688fab1701ace3b3a291e7d38be7cbd7dabdc5f372366710b3c3 # MD5 b2b153ca2eb4f90b9bb2d1e6c3e30785
TypeValueNote
sha256 37898777b390688fab1701ace3b3a291e7d38be7cbd7dabdc5f372366710b3c3 Sample:GandCrab
md5 b2b153ca2eb4f90b9bb2d1e6c3e30785 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi