Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec827d95037a6b7d…

MALICIOUS

PDF

21.9 KB Created: 2021-05-28 16:16:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: ca41fefb1ed14dd00f4425aec0d3d323 SHA-1: 112a470ce5d3269034ff79badc3c50eed6cc9c4c SHA-256: ec827d95037a6b7d8791bf2b48ef05f011562ecffafb352ba6a8bb68beaecc15
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is an image-only lure, a common tactic for phishing or malware delivery. It contains a clickable link that redirects through a URL shortener, indicating an attempt to obscure the final destination. While no scripts were directly extracted, the PDF structure and the presence of a link suggest it's designed to lead the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier clean score 0.0055

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 21 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://bestledy.page.link/vzkr 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_off00003a47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A47 15352 bytes
SHA-256: 80b151c7b4c124415ba8f6e55728d329057f2b894faad31d9541fe010992d5aa

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