Malicious PDF — malware analysis report

Static analysis result for SHA-256 730d2347f45c0ccc…

MALICIOUS

PDF

38.6 KB Created: 2021-05-21 23:22:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1de6ba37dedbe98ed43b708edabe5b20 SHA-1: 7b93760aefeb21507eff885e89aaae4b8347c8a7 SHA-256: 730d2347f45c0cccbd14cc71dbaf366c64fe95c336d3f9376c54a2734214689a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising 'free generators' and 'game hacks' for popular games. The primary malicious URL identified is https://netcdn.xyz/app/431946152/robux-com-free-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate it's designed to lead the user to potentially harmful content, likely as a lure for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9476

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/robux-com-free-game-hack In PDF document text
    • https://www.gejovenlo.nl/images/coin-master-hack-reddit_GM406889139.pdfIn PDF document text
    • https://www.gejovenlo.nl/images/coin-master-daily-free-spins-link-today-blog_GM406889139.pdfIn PDF document text
    • https://www.gejovenlo.nl/images/free-roblox-account-generator_GM431946152.pdfIn PDF document text
    • https://www.gejovenlo.nl/images/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://www.gejovenlo.nl/images/free-draw-2-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_002_off00003672.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3672 28024 bytes
SHA-256: ccaeb701b9c44497e2a537bb9102134824e333c2b6326254707606014279a43d
font_01_sfnt_off000075f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75F2 18276 bytes
SHA-256: 15a0db03ecad41b32ad15729058012b5ee1d917146ec7af3e780186d41394abc

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