Malicious PDF — malware analysis report

Static analysis result for SHA-256 9419688c5817fd7a…

MALICIOUS

PDF

35.4 KB Created: 2021-06-27 04:24:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-12
MD5: c3d241a6d6f94e524c14dc801d325568 SHA-1: 9ec1bf8bade762e8a657a3744c88fd7ec4c757d3 SHA-256: 9419688c5817fd7aeb46335bd7e08183e53859dd0b470df907eb49b384e56f7f
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-lots-of-robux-free-2021-game-hack In PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-daily-free-spins-today_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/free-roblox-dominus_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/working-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-free-coins-app_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-hackcom-xyz_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-get-free-gamepasses-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/robux-hack-dowbload_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-hacks-no-downloading_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/hack-coin-master-free_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/minecraft-pc-free_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/free-apk-mods-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/hack-para-island-royale-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/how-to-get-free-spins-on-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-do-you-earn-robux_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-t-shirt-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/hack-vehicle-simulator-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/is-minecraft-education-edition-free_GM479516143.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
stream_002_off0000317d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x317D 22620 bytes
SHA-256: 0521cf321ce1f329c9820043d68199f326cda6b03f01ec709819b122a7b2d277
font_01_sfnt_off00006415.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6415 19384 bytes
SHA-256: e57e01a47d15146a859b6bce91b7414ab71f748d145893aa5d3b7e5985a4d9b9