Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3963fdd7c7b6be…

MALICIOUS

PDF

46.2 KB Created: 2021-06-09 02:23:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-19
MD5: 5e95099882e32a0035d8ce85a4ce913c SHA-1: a1a9995e2c050026a592db09d72aee03e8dde56d SHA-256: 4e3963fdd7c7b6be00641e334f45d6eb3dd3171e537626c2c642dc47348bdb22
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/how-to-get-free-robux-promotion-link-game-hack In PDF document text
    • http://pspmrsmbpulau.com/opac/repository/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/free-links-coin-master_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/how-to-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/free-minecraft-account-generator_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/coin-master-hack-no-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/httpswwwurcouponsdealcom202103coinmasterfreespinandcoinlinkshtml_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/www-free-robux-com_GM431946152.pdfIn PDF document text
    • https://pspmrsmbpulau.com/opac/repository/free-roblox-games-yow-can-make_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/robux-now_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/free-roebucks_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/minecraft-mod-menu-apk_GM479516143.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/free-robux-com-real_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_004_off0000530f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x530F 26084 bytes
SHA-256: 8bb6a41adbec065407ea47dd14cf1ab293411dd8a1e66969c967715a5f258760
font_01_sfnt_off0000901c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x901C 18984 bytes
SHA-256: 8ad452d4a498e3f973cec12a70a7261e89ed4da8e59376b305a7fd0fc18fd93e

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