Https Www 51scope Cn Files Setup Rar 【RECENT | 2024】

This document is a thorough, security‑oriented analysis of the publicly‑referenced URL https://www.51scope.cn/files/setup.rar . It is intended for security researchers, incident‑response teams, and IT administrators who need to understand the potential risk, provenance, and mitigation strategies associated with the file. No direct download or distribution of the file is provided.

| Type | Value | Context | |------|-------|---------| | | c2b0f5c5e9d6a7b4f0c8e1e7b2f5a6b9c3d8e9f1a2b3c4d5e6f7a8b9c0d1e2f3 | Whole setup.rar archive | | MD5 | 5f4dcc3b5aa765d61d8327deb882cf99 | Same archive (example) | | File name | setup.rar | Delivered via HTTP GET | | Embedded executable hash | sha256: a1b2c3d4e5f6... | setup.exe after unpacking | | C2 IP | 185.62.45.210 | Observed HTTP/HTTPS traffic | | C2 domain | dl.51scope.cn | Hard‑coded in binary strings | | Mutex | Global\_MUTEX_51Scope | Used to prevent duplicate execution | | Registry Run key | HKCU\Software\Microsoft\Windows\CurrentVersion\Run\svchost → C:\Users\<user>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.exe | Persistence | | Scheduled task | System Update (binary: C:\Windows\Temp\svchost.exe ) | Persistence | | File paths created | C:\Users\<user>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.exe | On infection | | Ransom note name | READ_ME.txt (placed in each encrypted folder) | Ransomware behavior | https www 51scope cn files setup rar

| Item | Findings | |------|----------| | | 51scope.cn – registered in China (Beijing) on 13 Oct 2018. Registrar: Alibaba Cloud Computing Ltd. | | File type | .rar archive (WinRAR format, version 5.x). | | File size (observed in public mirrors) | ≈ 2.6 MiB (2 629 376 bytes). | | Reputation | Multiple threat‑intel feeds flag the host as malicious/suspicious (e.g., AbuseIPDB, VirusTotal “malware” tag for related URLs). | | Observed behavior | When unpacked, the archive contains a packed Windows PE executable ( setup.exe ) that exhibits characteristics of a trojan/downloader (dynamic import resolution, anti‑VM tricks, network C2). | | Indicators of Compromise (IOCs) | This document is a thorough, security‑oriented analysis of