Malicious PDF — malware analysis report

Static analysis result for SHA-256 78eee65f936c6175…

MALICIOUS

PDF

42.9 KB Created: 2021-05-11 00:31:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0e211c9b646561e976a0065749971fb4 SHA-1: a94f6b624eb4ed0543a315b33e04cbc629e28310 SHA-256: 78eee65f936c6175075d63492ade8a4121f2fbba11df615a993c7b2ab56a264e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded links that redirect to malicious infrastructure, specifically promoting 'free Robux' and 'game hack' lures. The primary malicious URL identified is https://netcdn.xyz/app/431946152/is-there-any-way-to-get-free-robux-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a phishing or social engineering attack designed to lead users to potentially harmful content or further 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/431946152/is-there-any-way-to-get-free-robux-game-hack In PDF document text
    • http://sebastiaanshoeve.nl/images/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://sebastiaanshoeve.nl/images/coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://sebastiaanshoeve.nl/images/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://sebastiaanshoeve.nl/images/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://sebastiaanshoeve.nl/images/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • http://sebastiaanshoeve.nl/images/how-to-get-creative-mode-in-minecraft-server-hack_GM479516143.pdfIn PDF document text
    • http://sebastiaanshoeve.nl/images/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text
    • http://sebastiaanshoeve.nl/images/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://sebastiaanshoeve.nl/images/coin-master-hack-2021-no-survey_GM406889139.pdfIn PDF document text
    • http://sebastiaanshoeve.nl/images/level-coin_GM406889139.pdfIn PDF document text
    • http://sebastiaanshoeve.nl/images/minecraft-pe-hack-client-2021_GM479516143.pdfIn PDF document text
    • http://sebastiaanshoeve.nl/images/how-to-hack-coins-in-archery-master-3d_GM406889139.pdfIn PDF document text
    • http://sebastiaanshoeve.nl/images/how-do-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://sebastiaanshoeve.nl/images/coin-master-free-spins-link-2021-app_GM406889139.pdfIn PDF document text
    • http://sebastiaanshoeve.nl/images/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://sebastiaanshoeve.nl/images/coin-master-free-download-for-pc_GM406889139.pdfIn PDF document text
    • http://sebastiaanshoeve.nl/images/free-printable-roblox-images_GM431946152.pdfIn PDF document text
    • http://sebastiaanshoeve.nl/images/free-roblox-generator_GM431946152.pdfIn PDF document text
    • http://sebastiaanshoeve.nl/images/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://sebastiaanshoeve.nl/images/free-minecraft-codes_GM479516143.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_off0000493e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x493E 25416 bytes
SHA-256: 519e2348eed3d18a5616ab648227a6ae26ad60d86518a44090c0c7605ac46576
font_01_sfnt_off0000838e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x838E 18892 bytes
SHA-256: d4b621edf5ac5f073c5a65dd804db4f1f2ad13c123c1b5ace541ce5f5c284f58

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