Malicious PDF — malware analysis report

Static analysis result for SHA-256 97d7c7778fa812f1…

MALICIOUS

PDF

18.5 KB Created: 2021-06-05 09:05:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 3ddf8059b90a71180d5e9f535b3d6341 SHA-1: 6b6f22dac3d1bf1af448e2c328de004caa3acd45 SHA-256: 97d7c7778fa812f1636d62740a11804f21c7825da690a5f9e02b5da7c0890ad7
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is an image-only lure, typical of phishing attempts, designed to trick users into clicking a link. The embedded URL 'https://fret.page.link/uorx' is a URL shortener, which is commonly used to obscure the final destination, often a malicious site. The heuristics indicate this is a high-priority finding.

Machine Learning

  • Nyx PDF Classifier clean score 0.0670

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 18 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://fret.page.link/uorx 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_off000036d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36D3 12396 bytes
SHA-256: 9651c78dad64c31681e27aaf77368dfa0aab65a72df78104afb2fc8edab34c59

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