Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb0b680d803aebd4…

MALICIOUS

PDF

45.6 KB Created: 2021-06-02 22:14:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: be3b532588101febc13095e3d3a1eff6 SHA-1: e8cc0c3e2f15463a5d55535d1241915fc4590b6d SHA-256: eb0b680d803aebd4db81a8cb360ce2e543ae44de8d9e76d92543a356ee8a1adc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free Robux' or 'game hacks'. The ML classifier and specific PDF heuristics strongly indicate malicious intent. The document body and embedded URLs suggest a social engineering lure to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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-robux-websites-that-actually-work-2021-game-hack In PDF document text
    • https://elearningmadrasah.min2madiun.sch.id/__statics/gudangsoal/files/free-roblox-website_GM431946152.pdfIn PDF document text
    • https://elearningmadrasah.min2madiun.sch.id/__statics/gudangsoal/files/free-robux-games_GM431946152.pdfIn PDF document text
    • https://elearningmadrasah.min2madiun.sch.id/__statics/gudangsoal/files/coin-master-spin-hack-app_GM406889139.pdfIn PDF document text
    • https://elearningmadrasah.min2madiun.sch.id/__statics/gudangsoal/files/minecraft-windows-10-free-with-java_GM479516143.pdfIn PDF document text
    • https://elearningmadrasah.min2madiun.sch.id/__statics/gudangsoal/files/collect-robux_GM431946152.pdfIn PDF document text
    • https://elearningmadrasah.min2madiun.sch.id/__statics/gudangsoal/files/free-spins-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://elearningmadrasah.min2madiun.sch.id/__statics/gudangsoal/files/free-robux-instantly_GM431946152.pdfIn PDF document text
    • https://elearningmadrasah.min2madiun.sch.id/__statics/gudangsoal/files/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://elearningmadrasah.min2madiun.sch.id/__statics/gudangsoal/files/robux-for-offers_GM431946152.pdfIn PDF document text
    • https://elearningmadrasah.min2madiun.sch.id/__statics/gudangsoal/files/robux-free-co_GM431946152.pdfIn PDF document text
    • https://elearningmadrasah.min2madiun.sch.id/__statics/gudangsoal/files/minecraft-pvp-hacks_GM479516143.pdfIn PDF document text
    • https://elearningmadrasah.min2madiun.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • https://elearningmadrasah.min2madiun.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://elearningmadrasah.min2madiun.sch.id/__statics/gudangsoal/files/coin-master-links-for-today_GM406889139.pdfIn PDF document text
    • https://elearningmadrasah.min2madiun.sch.id/__statics/gudangsoal/files/free-robux-scam_GM431946152.pdfIn PDF document text
    • https://elearningmadrasah.min2madiun.sch.id/__statics/gudangsoal/files/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • https://elearningmadrasah.min2madiun.sch.id/__statics/gudangsoal/files/free-robux-today_GM431946152.pdfIn PDF document text
    • https://elearningmadrasah.min2madiun.sch.id/__statics/gudangsoal/files/tiktok-free-views_GM835599320.pdfIn PDF document text
    • https://elearningmadrasah.min2madiun.sch.id/__statics/gudangsoal/files/free-minecraft-accounts-reddit_GM479516143.pdfIn PDF document text
    • https://elearningmadrasah.min2madiun.sch.id/__statics/gudangsoal/files/free-hair-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_004_off000052d5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52D5 24604 bytes
SHA-256: 3f03be62c4639b57076419863ca6b70005693cd9a5d959a25599c5f3a396ed5d
font_01_sfnt_off00008b83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B83 19656 bytes
SHA-256: 7b3ca8e33f6ab65cae0b12a773bae5d0e0377a7b1030ef9ec14be3c3cdd71d54

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