GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256f38a249efb8ff903037e3f17fc8f8264fdcdee1443dca981c86da490b65888cf
MD5e42ad5292e61fa40b6782effb6411e75
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Namef38a249efb8ff903037e3f17fc8f8264fdcdee1443dca981c86da490b65888cf
Tagsexe, Gandcrab

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: f38a249efb8ff903037e3f17fc8f8264fdcdee1443dca981c86da490b65888cf
  • MD5: e42ad5292e61fa40b6782effb6411e75

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: f38a249efb8ff903"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "f38a249efb8ff903037e3f17fc8f8264fdcdee1443dca981c86da490b65888cf"
}

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 f38a249efb8ff903037e3f17fc8f8264fdcdee1443dca981c86da490b65888cf # MD5 e42ad5292e61fa40b6782effb6411e75
TypeValueNote
sha256 f38a249efb8ff903037e3f17fc8f8264fdcdee1443dca981c86da490b65888cf Sample:GandCrab
md5 e42ad5292e61fa40b6782effb6411e75 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi