Malicious PDF — malware analysis report

Static analysis result for SHA-256 25cbffd8c4e844f3…

MALICIOUS

PDF

10.5 KB Created: 2021-08-09 21:22:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 762d5d3fa43d1d259b60e9460d5829a3 SHA-1: 3278960f777445df2c41efe23604ac372a72de5b SHA-256: 25cbffd8c4e844f357af67647f0d19411449add9da8ed241285bd23b704be3b7
62 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.2245

Heuristics 3

  • Image-only PDF lure links through URL shortener high PDF_IMAGE_LURE_SHORTENER_LINK
    PDF is image-heavy with little real text and its clickable action points to a URL shortener. This is a high-confidence credential-phishing carrier shape: the visible page is a screenshot-like prompt while the destination is hidden behind redirect infrastructure.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 10 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://monsher.page.link/6VPQ In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000016bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16BD 12396 bytes
SHA-256: 9651c78dad64c31681e27aaf77368dfa0aab65a72df78104afb2fc8edab34c59

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