Malicious PDF — malware analysis report

Static analysis result for SHA-256 599512dfa98c43d5…

MALICIOUS

PDF

19.4 KB Created: 2021-05-28 10:38:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: ce7e8b2420ae3b57cac669457c4de199 SHA-1: bbd9c257edde2bf87adc0668197522f04553654c SHA-256: 599512dfa98c43d5b49f6715f76c8a7cb4611e4eb78911b4a5b9d3300497d937
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only lure, a common tactic for phishing or distributing malicious content. It contains a single embedded URL that redirects through a URL shortener, increasing the likelihood of a malicious intent. The PDF's structure and small size further support its use as a deceptive lure.

Machine Learning

  • Nyx PDF Classifier clean score 0.0873

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 19 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/spXW 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_off00003a72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A72 12396 bytes
SHA-256: 9651c78dad64c31681e27aaf77368dfa0aab65a72df78104afb2fc8edab34c59

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