GandCrab | Threat Level: critical | Type: Ransomware
Cryptographic Identifiers
| SHA256 | ca6fb5cb02345b8f8cc81417cbed9d01dfb3c1beec877ede56c6287b2d058780 |
|---|---|
| MD5 | f9cfffe4e66c71e633794da64b8180a4 |
| File Type | exe |
| Size | 255.0 KB |
| First Seen | 2023-02-01 |
| File Name | zarchive.exe |
| Tags | 64, exe, Gandcrab |
Malware Family: GandCrab
GandCrab, en yaygın eski ransomware'dir.
| Type | Ransomware |
|---|---|
| Programming Language | C |
| Target Platform | Windows |
| C2 Protocol | HTTP |
| Purpose | MaaS ransomware |
| First Seen Year | 2018 |
Threat Indicators (IOC)
- SHA256:
ca6fb5cb02345b8f8cc81417cbed9d01dfb3c1beec877ede56c6287b2d058780 - MD5:
f9cfffe4e66c71e633794da64b8180a4
You can verify all hash values of this sample on VirusTotal.
System Cleanup Guide
- Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
- Do not pay the ransom — there is no guarantee your files will be restored
- Quarantine the affected drives
- Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
- Try available decryptor tools (the NoMoreRansom project)
- Report the incident to the authorities (cybercrime unit)
- Temiz bir yedekten kurtarın; yedeğiniz yoksa sürücüyü saklayın
YARA Rule Hints
rule GandCrab_SHA256 {
meta:
description = "GandCrab sample: ca6fb5cb02345b8f"
threat_level = "critical"
first_seen = "2023-02-01"
condition:
hash.sha256(0, filesize) == "ca6fb5cb02345b8f8cc81417cbed9d01dfb3c1beec877ede56c6287b2d058780"
}
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
ca6fb5cb02345b8f8cc81417cbed9d01dfb3c1beec877ede56c6287b2d058780
# MD5
f9cfffe4e66c71e633794da64b8180a4
| Type | Value | Note |
|---|---|---|
| sha256 | ca6fb5cb02345b8f8cc81417cbed9d01dfb3c1beec877ede56c6287b2d058780 | Sample:GandCrab |
| md5 | f9cfffe4e66c71e633794da64b8180a4 | Sample:GandCrab |