Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ea8391dd564dcd1…

MALICIOUS

PDF

24.3 KB Created: 2021-05-16 10:06:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2b034ba98ca7fd61971b6135556e5f9c SHA-1: b1a770d81853cd0126f4caed4579549b064d5409 SHA-256: 3ea8391dd564dcd110a2237695782d45dae7c0f815a3704642fa990608663086
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that are identified as malicious redirectors, specifically targeting users with lures related to game hacks and free in-game currency. The primary URL, https://netcdn.xyz/app/406889139/daily-free-spins-and-coins-coin-master-game-hack, is flagged as a redirector. The document body and PDF facts confirm the presence of numerous embedded URLs pointing to potentially malicious infrastructure, suggesting a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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/406889139/daily-free-spins-and-coins-coin-master-game-hack In PDF document text
    • http://armportal.co.uk/images/earn-points-for-robux_GM431946152.pdfIn PDF document text
    • http://armportal.co.uk/images/free-headless-head-roblox_GM431946152.pdfIn PDF document text
    • http://armportal.co.uk/images/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://armportal.co.uk/images/free-roblox-boy-hair_GM431946152.pdfIn PDF document text
    • http://armportal.co.uk/images/coin-master-codes_GM406889139.pdfIn PDF document text
    • http://armportal.co.uk/images/coin-master-hack-version-2021_GM406889139.pdfIn PDF document text
    • http://armportal.co.uk/images/roblox-com-hack_GM431946152.pdfIn PDF document text
    • http://armportal.co.uk/images/coin-master-free-coins-and-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://armportal.co.uk/images/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://armportal.co.uk/images/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://armportal.co.uk/images/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://armportal.co.uk/images/coin-master-club-hack_GM406889139.pdfIn PDF document text
    • http://armportal.co.uk/images/robux-get-com_GM431946152.pdfIn PDF document text
    • http://armportal.co.uk/images/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://armportal.co.uk/images/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://armportal.co.uk/images/free-minecraft-capes-no-mods_GM479516143.pdfIn PDF document text
    • http://armportal.co.uk/images/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
    • http://armportal.co.uk/images/roblox-character-free_GM431946152.pdfIn PDF document text
    • http://armportal.co.uk/images/free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://armportal.co.uk/images/hack-coin-master-apk-mod_GM406889139.pdfIn PDF document text