Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d584f64fe21d0af…

MALICIOUS

PDF

45.0 KB Created: 2021-05-15 00:39:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e531bd1a1f28f55292d381c85e78e550 SHA-1: fa5e0a9349e77294d43b40ab443e98f9c82af6d1 SHA-256: 1d584f64fe21d0af79a8c3a51004dda9978d151bfd4c984faec766c3077d7edf
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure users into clicking on them by promising free game generators or hacks. These links redirect to known malicious infrastructure, indicating a phishing or scam attempt. The document body and embedded URLs strongly suggest a social engineering tactic to drive traffic to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/free-spins-coin-master-app-game-hack In PDF document text
    • http://butkimloai.com/images/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://butkimloai.com/images/tiktok-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://butkimloai.com/images/daily-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/coin-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/static-moonactive-net-link_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/how-to-hack-coin-master-game_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/coin-master-attack-hack_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/easy-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/freerubux_GM431946152.pdfIn PDF document text
    • http://butkimloai.com/images/how-to-get-more-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/roblox-games-with-free-vip-servers_GM431946152.pdfIn PDF document text
    • http://butkimloai.com/images/haktuts-2021-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/free-robux-gen_GM431946152.pdfIn PDF document text
    • http://butkimloai.com/images/how-to-get-free-cards-sets-for-coin-master_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/coin-master-hack-apk-facebook-login_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • http://butkimloai.com/images/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • http://butkimloai.com/images/games-like-coin-master_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/coin-master-free-spins-hack-download_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000047c5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47C5 25900 bytes
SHA-256: 255e0867701727e6c8e6cef5391573a96996066f92e9739fc3cd3095bb66c001
font_01_sfnt_off00008353.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8353 3400 bytes
SHA-256: 4b3e0f36ad1e0c7e3ea5c178fd2b4f097d1e01575fc6a4101a8b520db34dfe07
font_02_sfnt_off00008e7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E7C 17884 bytes
SHA-256: ed1ea3c4e7635b9f65a5e0b6798c92341d7c1feababf17669f4466b6be8364ea

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