Malicious PDF — malware analysis report

Static analysis result for SHA-256 aefb636964798f0b…

MALICIOUS

PDF

15.6 KB Created: 2021-06-25 07:14:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: beb1b97061289404eeec9231d3d5e7c3 SHA-1: 8085351acc7a0c6b9912afaf9eec658dcb158886 SHA-256: aefb636964798f0b4a1f9c803094dc0d9d1f807eabf5433d3afd4e18129d704d
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that are flagged as malicious redirectors, specifically targeting users interested in game hacks and generators for popular games like Roblox. The embedded URLs likely lead to phishing or malware distribution sites. No scripts were extracted from this sample, but the heuristic firings strongly indicate a social engineering attack aimed at tricking users into visiting malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9912

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/www-roblox-hack-me-game-hack In PDF document text
    • https://opac.heritagejkt.org/repository/free-roblox-pin-codes_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/free-robux-computer-generator_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/free-redeem-robux-codes_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/roblox-cheat-gamepass_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/roblox-anthem-its-free_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/hacks-for-roblox-prison-life_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/roblox-hax_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/coin-master-free-spins-cheat-codes_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/114-4-hacks_GM479516143.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/coin-master-daily-gifts_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/roblox-dungeon-quest-hack-script_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/coin-master-hack-version-2021-free-download_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/roblox-free-items_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text