Malicious PDF — malware analysis report

Static analysis result for SHA-256 478c5bfb0d1c7a8d…

MALICIOUS

PDF

37.4 KB Created: 2021-05-25 08:02:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-20
MD5: 0334d3e6858cbe153250906645558df9 SHA-1: 3b3588ce37e7029a6f295434709345b7aa2ec8fe SHA-256: 478c5bfb0d1c7a8d3f57682414c9e223fe81a3de0b297e0db509d460b1268fbe
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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 https://netcdn.xyz/app/479516143/how-to-get-a-free-minecraft-server-game-hack In PDF document text
    • https://www.elma-mts.ppmtipakansinayan.ponpes.id/__statics/gudangsoal/files/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
    • https://www.elma-mts.ppmtipakansinayan.ponpes.id/__statics/gudangsoal/files/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • https://www.elma-mts.ppmtipakansinayan.ponpes.id/__statics/gudangsoal/files/get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://www.elma-mts.ppmtipakansinayan.ponpes.id/__statics/gudangsoal/files/buy-robux-free_GM431946152.pdfIn PDF document text
    • https://www.elma-mts.ppmtipakansinayan.ponpes.id/__statics/gudangsoal/files/how-to-get-free-robux-without-human-verification_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
stream_002_off0000389f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x389F 25476 bytes
SHA-256: 735d1aa61a57d12fa592b268c7da8de486db8199ca3b348b7e4fc25d70d2a978
font_01_sfnt_off00007201.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7201 17988 bytes
SHA-256: 888c9dccd83fb0c13f9447925305c3d56d9429efcbe621f5ab8e9b5d24de1b14

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