Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e25e52d213c40b3…

MALICIOUS

PDF

40.6 KB Created: 2021-05-13 02:30:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a16fdb571cbff8c5881f22d478ee39aa SHA-1: e9dcc6736d9f130b79d56a6e9559070aa6d127d4 SHA-256: 8e25e52d213c40b3b73bc902f4ca06351720bebcf95c78e024ccf1b88931ca01
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and infrastructure, disguised as game hacks and generators. The ML classifier also flagged this PDF as malicious. The embedded links likely lead to further malicious content or malware downloads, indicating a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/406889139/cheat-codes-for-coin-master-game-hack In PDF document text
    • http://arpinoturismo.it/images/how-to-get-minecraft-pe-for-free-ios_GM479516143.pdfIn PDF document text
    • http://arpinoturismo.it/images/how-to-make-my-own-coin-master-cards-hack_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/coin-master-daily_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/coin-master-online_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/cheats-for-coin-master_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/coin-master-free-coins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/free-robux-working_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/how-to-earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/roblox-games-free_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/minecraft-logo-maker-free_GM479516143.pdfIn PDF document text
    • http://arpinoturismo.it/images/coin-master-free-spins-link-haktuts_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/coin-master-freebies_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/moon-active_GM406889139.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_003_off000045c2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x45C2 24292 bytes
SHA-256: c9b7c383af89ce370a3c14190b23579d48785cf6ab06e04ee353b20d59873033
font_01_sfnt_off00007d01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D01 18052 bytes
SHA-256: c83c2968f9adc9e8284b9f918c7c7a0f7d3bbc65ccd05c6284fac2f5c017bb12

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