Malicious PDF — malware analysis report

Static analysis result for SHA-256 79324e361d7f478a…

MALICIOUS

PDF

16.0 KB Created: 2021-06-29 09:18:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6a07d9cfd2e115376bbf32e31e083200 SHA-1: ba04b0e8ff124d7a18eade17ca36286fdce30c55 SHA-256: 79324e361d7f478ad76a7f94a7b190c0c1eccd26775c5799b9543aa891fc8365
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising 'free generator' or 'game hack' content to lure victims. The ML classifier also strongly indicated maliciousness. While no scripts were extracted, the embedded links and the nature of the lures suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

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 http://netcdn.co/app/431946152/free-robux-and-tix-tickets-game-hack In PDF document text
    • http://gornjastubica.hr/files/coin-blogspot_GM406889139.pdfIn PDF document text
    • https://www.gornjastubica.hr/files/cheat-code-for-roblox-theme-park_GM431946152.pdfIn PDF document text
    • http://gornjastubica.hr/files/descargar-hack-robux-gratis_GM431946152.pdfIn PDF document text
    • http://gornjastubica.hr/files/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.gornjastubica.hr/files/how-many-levels-are-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.gornjastubica.hr/files/robux-free-com_GM431946152.pdfIn PDF document text
    • http://gornjastubica.hr/files/gift-cards-for-free-roblox_GM431946152.pdfIn PDF document text
    • http://gornjastubica.hr/files/minecraft-education-free_GM479516143.pdfIn PDF document text
    • http://gornjastubica.hr/files/easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://gornjastubica.hr/files/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.gornjastubica.hr/files/coin-master-time-hack_GM406889139.pdfIn PDF document text
    • http://gornjastubica.hr/files/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • http://gornjastubica.hr/files/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
    • http://gornjastubica.hr/files/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://gornjastubica.hr/files/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • https://www.gornjastubica.hr/files/free-robux-2021-july_GM431946152.pdfIn PDF document text
    • http://gornjastubica.hr/files/roblox-robux-robux-robux-free_GM431946152.pdfIn PDF document text
    • http://gornjastubica.hr/files/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://www.gornjastubica.hr/files/coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://gornjastubica.hr/files/cheat-buddy-roblox-esp_GM431946152.pdfIn PDF document text