Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb060c5a4ebd700f…

MALICIOUS

PDF

31.5 KB Created: 2021-05-28 16:22:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: bd250a67a4e6e4d10c3a9b932a8e1a76 SHA-1: 102096fb948837597ced8deaf9e9edc68598a6e0 SHA-256: cb060c5a4ebd700f4b07ad681b7ff4544a727e525e2ce75d9c5e217594543e1f
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only lure, a common tactic to disguise malicious links behind a seemingly harmless image. The embedded URL, https://prizon.page.link/vT3T, is a shortened link, increasing suspicion. While the URL itself is marked as benign, the overall pattern suggests a phishing attempt or a redirect to a malicious site.

Machine Learning

  • Nyx PDF Classifier clean score 0.0046

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 31 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://prizon.page.link/vT3T 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_off000060b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60B1 15352 bytes
SHA-256: 80b151c7b4c124415ba8f6e55728d329057f2b894faad31d9541fe010992d5aa