GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256a41c5e93c8d40361fb834bdd7b671ce0a68082be242482fdac07c42983c02fb3
MD575f215c1f086c47ee45392bd188909d0
File Typeexe
Size121.5 KB
First Seen2022-08-30
File Namea41c5e93c8d40361fb834bdd7b671ce0a68082be242482fdac07c42983c02fb3
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: a41c5e93c8d40361fb834bdd7b671ce0a68082be242482fdac07c42983c02fb3
  • MD5: 75f215c1f086c47ee45392bd188909d0

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: a41c5e93c8d40361"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "a41c5e93c8d40361fb834bdd7b671ce0a68082be242482fdac07c42983c02fb3"
}

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 a41c5e93c8d40361fb834bdd7b671ce0a68082be242482fdac07c42983c02fb3 # MD5 75f215c1f086c47ee45392bd188909d0
TypeValueNote
sha256 a41c5e93c8d40361fb834bdd7b671ce0a68082be242482fdac07c42983c02fb3 Sample:GandCrab
md5 75f215c1f086c47ee45392bd188909d0 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi