Malicious PDF — malware analysis report

Static analysis result for SHA-256 d350085efc63d389…

MALICIOUS

PDF

44.5 KB Created: 2021-05-13 16:01:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7c7534f783799f9093c18e6a0ec83086 SHA-1: 5ad58803caa5bebe1b0a97266a91fd92f6ad493a SHA-256: d350085efc63d389da6dd5586c909a102f5b10a3b12851d784cabedb2d84cab3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically advertising free game currency or hacks. The ML classifier also flagged this PDF as malicious. The primary lure appears to be related to 'Robuxfree Con' and game hacks, directing users to the URL https://netcdn.xyz/app/431946152/robuxfree-con-game-hack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/robuxfree-con-game-hack In PDF document text
    • http://pro-graphite.com/images/coin-master-hack-tool-pc_GM406889139.pdfIn PDF document text
    • http://pro-graphite.com/images/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
    • http://pro-graphite.com/images/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://pro-graphite.com/images/john-doe-roblox-hacker_GM431946152.pdfIn PDF document text
    • http://pro-graphite.com/images/minecraft-xbox-one-code-free_GM479516143.pdfIn PDF document text
    • http://pro-graphite.com/images/free-minecraft-client_GM479516143.pdfIn PDF document text
    • http://pro-graphite.com/images/how-to-get-minecraft-for-free-on-chromebook_GM479516143.pdfIn PDF document text
    • http://pro-graphite.com/images/minecraft-com-free_GM479516143.pdfIn PDF document text
    • http://pro-graphite.com/images/coin-master-connection-lost-hack_GM406889139.pdfIn PDF document text
    • http://pro-graphite.com/images/free-minecraft-website_GM479516143.pdfIn PDF document text
    • http://pro-graphite.com/images/roblox-hack-com_GM431946152.pdfIn PDF document text
    • http://pro-graphite.com/images/coin-master-free-spins-2021-ios_GM406889139.pdfIn PDF document text
    • http://pro-graphite.com/images/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • http://pro-graphite.com/images/minecraft-for-free-apk_GM479516143.pdfIn PDF document text
    • http://pro-graphite.com/images/offers-for-robux_GM431946152.pdfIn PDF document text
    • http://pro-graphite.com/images/hack-coin-master-apk-ios_GM406889139.pdfIn PDF document text
    • http://pro-graphite.com/images/minecraft-ps4-code-free_GM479516143.pdfIn PDF document text
    • http://pro-graphite.com/images/how-can-i-get-free-coinsn-coin-master_GM406889139.pdfIn PDF document text
    • http://pro-graphite.com/images/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • http://pro-graphite.com/images/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000466c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x466C 25200 bytes
SHA-256: d75a07eb9dae5441bbf0ab122211f2a2425a5ce92dada8ef0c0a2f5916077b83
font_01_sfnt_off0000800a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x800A 5596 bytes
SHA-256: 9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5
font_02_sfnt_off00008cb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CB1 17852 bytes
SHA-256: 2abfd2a7a9970b37389a870ca2f729fd01b6f1f075e52c5d41a045b4308c3fdd

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