Malicious PDF — malware analysis report

Static analysis result for SHA-256 37046465c5814062…

MALICIOUS

PDF

46.4 KB Created: 2021-06-03 14:51:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 85c291f313f68d63bbe9bb4eafe36a8f SHA-1: 08102648593424c5b84a9a249104c73f12820edc SHA-256: 37046465c58140621dc31a442e0334026d2ef2bd0dcc1556b157016d75c096e6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links that redirect to malicious infrastructure, specifically promoting a 'free generator / game hack'. The ML classifier also flagged this PDF as malicious. The primary attack pattern involves luring users to click on these links, likely leading to further compromise or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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.online/app/406889139/coin-master-spins-for-free-game-hack In PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/coin-master-cheats-free-spins_GM406889139.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/minecraft-free-school_GM479516143.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/roblox-hack-site_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id//repository/pokemon-go-free-in-app-purchases_GM1094591345.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/checkbackgroundnet-roblox-hack_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/minecraft-free-version_GM479516143.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/get-free-spins-on-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id//repository/minecraft-apk-free-download-016-0_GM479516143.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id//repository/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/coin-master-haktuts_GM406889139.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/minecraft-toys-for-free_GM479516143.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id//repository/coin-master-hack-apk-no-fb-login_GM406889139.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id//repository/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/roblox-army-robux_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id//repository/free-spin-link-for-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id//repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id//repository/can-you-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://e-library.akbid-purworejo.ac.id/repository/coin-master-free-spins-links-app_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_004_off00005317.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5317 29380 bytes
SHA-256: 12cdcd27d1aea3cae89cb1e5be0a32166346f8ef363ec905f65249dee671c1bb
font_01_sfnt_off00009402.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9402 17884 bytes
SHA-256: f64f8d8cd546afe107dcd88d9ce91258665e3d619825ef5ba403a2abc0c27184

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