Malicious PDF — malware analysis report

Static analysis result for SHA-256 256794f6e19c4f46…

MALICIOUS

PDF

17.3 KB Created: 2021-05-28 16:29:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 0c859581ee37baa5bf17e5844d85983f SHA-1: 283ab84605c587a617f8b5af55d5295d68c2f364 SHA-256: 256794f6e19c4f46f938282478601a3a19aec4b8cdc882f2cbaa42401ed2f0e7
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF is designed as a lure, presenting a full-page image with a deceptive prompt to click it. The embedded URL, https://volde.page.link/V5TK, is a URL shortener, which is commonly used to obscure malicious destinations. The heuristic firings strongly indicate this is an image-based phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0054

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 17 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/V5TK In PDF document text
    • http://www.microsoft.com/typography/fonts/In PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E8D 7016 bytes
SHA-256: 20c332cdd1989bed0ffadb979c83309f9a57efe41c4a4e1c38dc51df3f49767a

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