Malicious PDF — malware analysis report

Static analysis result for SHA-256 b76d95a0a4d4238d…

MALICIOUS

PDF

44.5 KB Created: 2021-05-11 07:37:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d1ca3d3b1fe4c4e011f5c2b00f1db7a9 SHA-1: bfb39df8c4709d3ccd3656aad1f4a731ed112d0f SHA-256: b76d95a0a4d4238d7dd11892a9309587dd6f0c72b8dc6ce1829a5f844a09b5d9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as game hacks or generators. The primary malicious URL identified is https://netcdn.xyz/app/431946152/free-draw-2-roblox-game-hack. The document body and embedded artifacts suggest a lure for users seeking in-game currency or cheats, leading them to potentially malicious sites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/431946152/free-draw-2-roblox-game-hack In PDF document text
    • https://luminouswisdom.org/images/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://luminouswisdom.org/images/get-me-free-robux_GM431946152.pdfIn PDF document text
    • https://luminouswisdom.org/images/how-to-get-free-coins-in-minecraft_GM479516143.pdfIn PDF document text
    • https://luminouswisdom.org/images/coin-master-free-spins-usa-2021_GM406889139.pdfIn PDF document text
    • https://luminouswisdom.org/images/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • https://luminouswisdom.org/images/get-free-robux-info_GM431946152.pdfIn PDF document text
    • https://luminouswisdom.org/images/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://luminouswisdom.org/images/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • https://luminouswisdom.org/images/free-spins-coin-master-without-survey_GM406889139.pdfIn PDF document text
    • https://luminouswisdom.org/images/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • https://luminouswisdom.org/images/coin-master-free-foxy-food_GM406889139.pdfIn PDF document text
    • https://luminouswisdom.org/images/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • https://luminouswisdom.org/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://luminouswisdom.org/images/hack-coin-master-apk-ios_GM406889139.pdfIn PDF document text
    • https://luminouswisdom.org/images/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://luminouswisdom.org/images/how-to-get-free-things-on-roblox_GM431946152.pdfIn PDF document text
    • https://luminouswisdom.org/images/earn-robux-online_GM431946152.pdfIn PDF document text
    • https://luminouswisdom.org/images/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://luminouswisdom.org/images/coin-master-app-hacks_GM406889139.pdfIn PDF document text
    • https://luminouswisdom.org/images/what-do-points-do-in-roblox_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_003_off00004bb5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BB5 28844 bytes
SHA-256: 36bca6a38587d57e6b7c4c95af772f9b65803bdf5c54308cdb0bac56d9eb69ae
font_01_sfnt_off00008ab7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AB7 18632 bytes
SHA-256: 1948321e46036ef7a86fce7363c42741d482fdecd1af70e946b235d8b00c49b1

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