Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2513e85cd1cba46…

MALICIOUS

PDF

29.4 KB Created: 2021-05-28 10:35:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 90026b1bec85d70555361c07be7e7580 SHA-1: 801387bd887763e825d0559b5740a0a40fa97ac6 SHA-256: b2513e85cd1cba46da56b77ec768a39b4dada7513734bfe41d3636a7dcecd3bc
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file is identified as an image-only lure, a common tactic for phishing. It contains a single embedded URL, 'https://volde.page.link/EawQ', which is likely the primary mechanism for delivering a subsequent payload or redirecting the user to a malicious site. The heuristic 'PDF_IMAGE_LURE_SHORTENER_LINK' specifically flags this URL as being shortened, increasing suspicion.

Machine Learning

  • Nyx PDF Classifier clean score 0.1552

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 29 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://volde.page.link/EawQ 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_off0000576f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x576F 15776 bytes
SHA-256: 69255362af62ea912542a91f1ff081f8d5fa40d1fcb05ad321de4e86c9692255