Malicious PDF — malware analysis report

Static analysis result for SHA-256 552a29f11ef633a8…

MALICIOUS

PDF

15.6 KB Created: 2021-04-25 12:38:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 8c7c3b223b7975b4be864b0ff75b1a1a SHA-1: 343525e5c7c8b409d1c45a597ce720d9a850287f SHA-256: 552a29f11ef633a8810695ccffba9a5dcb54278040e1f6936c387f276724148c
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to malicious infrastructure, specifically promoting a "free generator / game hack" for Roblox. The primary link identified is https://netcdn.xyz/app/431946152/how-to-get-free-robux-on-roblox-on-a-phone-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate it's designed to trick users into visiting malicious sites, likely as a lure for further compromise or scams.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9970

Heuristics 3

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/431946152/how-to-get-free-robux-on-roblox-on-a-phone-game-hack In PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/free-gamepass-roblox-v3rmillion.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/roblox-red-boy-hack.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/rbxcash-free-robux.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/free-pants-for-roblox.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/are-free-roblox-exploit-safe.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/what-roblox-games-give-you-free-robux.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/assassins-creed-cheat-codes-roblox.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/free-roblox-hack-for-ipad.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/how-to-hack-free-robux-on-pc.pdfIn PDF document text
    • https://mismuh-kota-utara.sch.id/__statics/gudangsoal/files/roblox-avatar-hack.pdfIn PDF document text

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