GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256139bc1d18681bba77eec6751391cf88c9e90dde1cb16f5acdd364f08f698289b
MD514261d90e9f138dbf9e08be4eda76943
File Typeexe
Size196.5 KB
First Seen2022-08-30
File Name139bc1d18681bba77eec6751391cf88c9e90dde1cb16f5acdd364f08f698289b
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 139bc1d18681bba77eec6751391cf88c9e90dde1cb16f5acdd364f08f698289b
  • MD5: 14261d90e9f138dbf9e08be4eda76943

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: 139bc1d18681bba7"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "139bc1d18681bba77eec6751391cf88c9e90dde1cb16f5acdd364f08f698289b"
}

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 139bc1d18681bba77eec6751391cf88c9e90dde1cb16f5acdd364f08f698289b # MD5 14261d90e9f138dbf9e08be4eda76943
TypeValueNote
sha256 139bc1d18681bba77eec6751391cf88c9e90dde1cb16f5acdd364f08f698289b Sample:GandCrab
md5 14261d90e9f138dbf9e08be4eda76943 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi