GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256e15ac4a26a7004ba23b3f09115bf3e9a1a3b223084ff2e18c89cba305ddee139
MD5f39a5a0ea3509a18d391bc831266786b
File Typeexe
Size97.5 KB
First Seen2022-08-30
File Namee15ac4a26a7004ba23b3f09115bf3e9a1a3b223084ff2e18c89cba305ddee139
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: e15ac4a26a7004ba23b3f09115bf3e9a1a3b223084ff2e18c89cba305ddee139
  • MD5: f39a5a0ea3509a18d391bc831266786b

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: e15ac4a26a7004ba"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "e15ac4a26a7004ba23b3f09115bf3e9a1a3b223084ff2e18c89cba305ddee139"
}

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 e15ac4a26a7004ba23b3f09115bf3e9a1a3b223084ff2e18c89cba305ddee139 # MD5 f39a5a0ea3509a18d391bc831266786b
TypeValueNote
sha256 e15ac4a26a7004ba23b3f09115bf3e9a1a3b223084ff2e18c89cba305ddee139 Sample:GandCrab
md5 f39a5a0ea3509a18d391bc831266786b Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi