Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d132cdec2035fb2…

MALICIOUS

PDF

42.0 KB Created: 2021-05-13 04:46:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b326ee17f87c3411a342aeef53c4ca8d SHA-1: 7026c5a4d987bbcaebfdda17c15cccd12572824e SHA-256: 7d132cdec2035fb21d195a965ae9f529ec3859279a2f2c4699b0346abebd4cd6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites, including a known malicious redirector, disguised as generators for popular games. The heuristic PDF_GAME_HACK_REDIRECT_LURE specifically identifies this lure technique. The ML classifier also strongly flagged this PDF as malicious. The embedded links likely lead to further malicious content or malware downloads.

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/coin-master-daily-bonus-hack-game-hack In PDF document text
    • http://bestmaids.co.uk/images/free-robux-app_GM431946152.pdfIn PDF document text
    • http://bestmaids.co.uk/images/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • http://bestmaids.co.uk/images/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://bestmaids.co.uk/images/wurst-client_GM479516143.pdfIn PDF document text
    • http://bestmaids.co.uk/images/500-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://bestmaids.co.uk/images/free-hair-roblox_GM431946152.pdfIn PDF document text
    • http://bestmaids.co.uk/images/minecraft-windows-free_GM479516143.pdfIn PDF document text
    • http://bestmaids.co.uk/images/coin-master-free-spins-and-coins-app_GM406889139.pdfIn PDF document text
    • http://bestmaids.co.uk/images/free-coin-master-androd-cheats-2021_GM406889139.pdfIn PDF document text
    • http://bestmaids.co.uk/images/coin-master-hack-2021-apk_GM406889139.pdfIn PDF document text
    • http://bestmaids.co.uk/images/300-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://bestmaids.co.uk/images/minecraft-launcher-free_GM479516143.pdfIn PDF document text
    • http://bestmaids.co.uk/images/coin-master-hack-apk-2021-download_GM406889139.pdfIn PDF document text
    • http://bestmaids.co.uk/images/roblox-avatar-tester_GM431946152.pdfIn PDF document text
    • http://bestmaids.co.uk/images/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • http://bestmaids.co.uk/images/free-spins-and-coins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://bestmaids.co.uk/images/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://bestmaids.co.uk/images/coin-master-free-spins-whatsapp-link_GM406889139.pdfIn PDF document text
    • http://bestmaids.co.uk/images/coin-master-hack-online-pc_GM406889139.pdfIn PDF document text
    • http://bestmaids.co.uk/images/coin-master-free-coins_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
font_00_sfnt_off00004910.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4910 24780 bytes
SHA-256: 13d89eefe2b6f8e8188436d7fc0bc2810134bf7b3b41248ad3317370a52e6234
font_01_sfnt_off0000811f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x811F 18492 bytes
SHA-256: 77c8527bb80419ea1b310e076c81cc54c80853c09ee39a5068d6b6a3771ea58e

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