Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b505df24a8b2ba…

MALICIOUS

PDF

35.4 KB Created: 2021-06-30 08:36:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-28
MD5: ffdc1e64f248762512d51707080cf38a SHA-1: e33a0c82aa66fd17c4bb58db6e20cadfc124725d SHA-256: 72b505df24a8b2ba33f69090b64b4b9049d883afa32be2b2f28c1246798f2fdb
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/how-to-get-free-clothes-on-roblox-inspect-game-hack In PDF document text
    • http://lib.stie-aub.ac.id/repository/how-to-hack-roblox-accounts-2021-august_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-minecraft-shaders_GM479516143.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-download-roblox-cheats-hack-tool-v2-3_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/robux-free-co_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/roblox-royale-high-dimond-hack_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/how-to-hack-accounts-on-roblox-on-ipad_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/this-game-has-shut-down-roblox-cheat-engine_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/cupcake-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/666-roblox-rc77-hack_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-gear-codes-for-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/hack-para-phantom-forces-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/how-to-make-free-badges-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/descargar-hack-robux_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/how-to-hack-into-any-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/how-to-get-free-robux-on-roblox-october-2021_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/roblox-report-hacker_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/com-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/roblox-cheat-engine-fix_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_off000031c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31C6 22784 bytes
SHA-256: 2402041892b47c25d49d539ef54e9a1b32a264ee8f89e072dcba7f6786e97aba
font_01_sfnt_off000064c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64C3 19260 bytes
SHA-256: f44d85a877c22048a3c3f6d50771b5188a9d3cc5b0bdcdb80ec2de6d41a4d1cd