Malicious PDF — malware analysis report

Static analysis result for SHA-256 4afe3d6d5ed870ce…

MALICIOUS

PDF

33.9 KB Created: 2021-07-05 03:04:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-06
MD5: 623d73935bb0c74efe7df045d4f81429 SHA-1: 54feb8d7ad08b56a686e118e6a4fee0b1cf1801d SHA-256: 4afe3d6d5ed870cea051c68e2e0c6a753df321138583c4d206b527baed2afa4c
160 Risk Score

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.tw/app/431946152/how-to-get-free-robux-easy-no-download-game-hack In PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/how-to-earn-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/how-to-get-free-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/coin-master-cheat-free_GM406889139.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/free-minecraft-com_GM479516143.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/how-to-get-clockwork-glasses-on-roblox-free_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/free-spin-link-coin-master-app_GM406889139.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/block-hunt-hack-roblox-pastebin_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/aaroboy-10-hacker-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/ultimate-random-night-how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/free-robux-codes_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/robux-with-no-email-no-hacks-no-buyings_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/hack-para-roblox-red-boy_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/free-redeem-code-on-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/free-robux-no-surveys-or-human-verify_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/roblox-welcome-to-bloxburg-for-free_GM431946152.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_off00002bb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BB5 22544 bytes
SHA-256: fe5d28715a388c7db73a1bb9c1cac6d0a3a0d698937fa87f48a78129ae42f02f
font_01_sfnt_off00005e20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E20 19580 bytes
SHA-256: cec9a933bfe218ed72e75e78f410bfe5e0ee423effe7607af1f96a02e11767e9

Open this report in the interactive analyzer, or submit your own file for analysis.