GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25615a1c02de96535e6ee56b6fc3f7d2b3b128f4caa83cb927dcc2fb633eaf4e958
MD5f78a92ea420b3e9a95d798f25f3325c3
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Name15a1c02de96535e6ee56b6fc3f7d2b3b128f4caa83cb927dcc2fb633eaf4e958
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 15a1c02de96535e6ee56b6fc3f7d2b3b128f4caa83cb927dcc2fb633eaf4e958
  • MD5: f78a92ea420b3e9a95d798f25f3325c3

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: 15a1c02de96535e6"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "15a1c02de96535e6ee56b6fc3f7d2b3b128f4caa83cb927dcc2fb633eaf4e958"
}

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 15a1c02de96535e6ee56b6fc3f7d2b3b128f4caa83cb927dcc2fb633eaf4e958 # MD5 f78a92ea420b3e9a95d798f25f3325c3
TypeValueNote
sha256 15a1c02de96535e6ee56b6fc3f7d2b3b128f4caa83cb927dcc2fb633eaf4e958 Sample:GandCrab
md5 f78a92ea420b3e9a95d798f25f3325c3 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi