Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f3265ce59a02d25…

MALICIOUS

PDF

33.7 KB Created: 2021-06-19 09:27:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 59edafcbd0ff59a7132666491a82bd61 SHA-1: d68162ba1a52a78146117695083ea5fab17fff40 SHA-256: 9f3265ce59a02d2540ca739932edd89f1e43fe07def95dd3b95e22bc5448e199
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, including a primary redirector at http://netcdn.co/app/431946152/free-stuff-that-you-can-get-in-roblox-game-hack. These links are presented as lures for free game items, aligning with a phishing or scamming attack pattern. The ML classifier and specific PDF heuristics strongly indicate malicious intent, likely to redirect users to potentially harmful content or further stages of an attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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-stuff-that-you-can-get-in-roblox-game-hack In PDF document text
    • http://gts.edu.gh/library/repository/rbx-earn_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/can-you-get-robux-for-free-froom-roblox-hames_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-3533-android-hack_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-cheat-in-roblox-counter-blox_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/microsoft-rewards-robux_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-village-cost_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/daniel-neward-youtube-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-free-spin-trick_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/what-is-a-minecraft-client_GM479516143.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/hack-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-mobile-hack-tool-download_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/minecraft-launcher-free_GM479516143.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-avatar-maker-roblox_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/scary-larry-roblox_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-adopt-me-hacks-2021_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-free-spin-redeem-code_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002a84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A84 23052 bytes
SHA-256: 661170bd4c51db96e192d7fe20ff3bf905fe7350a1ec9a5f58a37eac2b50a674
font_01_sfnt_off00005e82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E82 19224 bytes
SHA-256: c881d6bafa891cf232894209e2e73676f49341cfc10051f7a70c1af08985c23a

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