Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8e333d2c9fc44ac…

MALICIOUS

PDF

32.0 KB Created: 2021-07-22 07:32:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ba9abcdc2b703c0d9208af3242b13c77 SHA-1: 26ae62f46f43bff542d043911286175c2bebe8f6 SHA-256: e8e333d2c9fc44ac097dd0ef706a7b75bb18f06ca482b3cc2da40a39385c244f
70 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link that redirects to known malicious infrastructure, disguised as a 'Robloxmatch.com Free Robux' generator. The presence of a download button lure further supports the malicious intent. The document body and embedded artifacts do not provide further insight into the payload, but the primary function appears to be redirecting users to a malicious site.

Machine Learning

  • Nyx PDF Classifier clean score 0.0622

Heuristics 3

  • 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 http://netcdn.tw/app/431946152/robloxmatch.com-free-robux-game-hack In 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
font_00_sfnt_off00002575.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2575 23152 bytes
SHA-256: b1b8473134cfc4deaf7154381355f819ce9441998214347b700e50a6daef387b
font_01_sfnt_off00005982.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5982 19100 bytes
SHA-256: 320d93f3b8ec418dafe56a0ab761e37d2656ce3fae295c57a773b93fd475c835

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