Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b65d79fc0650824…

MALICIOUS

PDF

15.7 KB Created: 2021-06-10 21:48:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8466b31d2c44334b6312412653f74010 SHA-1: 2b8dd4b245c04f80decd1d7d7f7161b4e1d1be79 SHA-256: 6b65d79fc06508246d952a6760da39da7acd798d39c829fc73116ee3294a0fba
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links designed to lure users with promises of free game currency or hacks, such as 'free Robux'. These links redirect to malicious infrastructure, specifically identified as a redirector. The document body and embedded URLs strongly suggest a phishing or scam attempt, likely to lead users to a site that may host further malware or attempt credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9962

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.tw/app/431946152/how-to-get-free-robux-from-bloxmarket-game-hack In PDF document text
    • https://www.shin.ge/images/coin-master-hack-version-2021-download_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/roblox-high-school-money-hack_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/roblox-free-online-game_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/free-robux-promotinal-codes_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/roblox-adopt-me-hack-all-items_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/coin-master-cards_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/hack-roblox-knife-simulator_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/free-costume-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/twitter-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/coin-master-fIn PDF document text

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