Malicious PDF — malware analysis report

Static analysis result for SHA-256 25f54b7adf4363c9…

MALICIOUS

PDF

25.7 KB Created: 2021-06-28 09:21:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 05219426e336dd8b9189d0bb18db5dfa SHA-1: 62acaa07d9042c63349d2231177b3a4a2fec1241 SHA-256: 25f54b7adf4363c9c6b03e61870a3550e6eddcfe9ae70614b2e6f7bcb5b7b67e
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically advertising game hacks and generators for popular games like Roblox and Coin Master. The heuristic firings confirm these links are associated with malicious redirectors and game hack lures. The embedded URLs and the document body content strongly suggest a phishing or scam attempt to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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/roblox-garbage-simulator-script-hack-game-hack In PDF document text
    • http://library.futureuniversity.com/repository/coin-master-free-spins-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/get-free-roblox-hair_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/roblox-script-hacks_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/minecraft-free-download-unblocked_GM479516143.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/wahoo-gaming-co-free-robux_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/roblox-gift-card-online-free_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-roblox-account-that-has-robux_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/coin-master-gameplay_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/how-to-get-free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-download-roblox-hack-tool_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-roblox-gift-card-giveway_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/roblox-assassin_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/how-to-hack-stats-in-roblox-games_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/coin-master-apk-hack-358_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/coin-master-free-spins-2021-app_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003035.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3035 22028 bytes
SHA-256: 2fb9db350e22c2af84a8b140725171c29af2b480caee0684961818803c63898a

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