Malicious PDF — malware analysis report

Static analysis result for SHA-256 661ad82a57626005…

MALICIOUS

PDF

23.1 KB Created: 2021-06-05 09:04:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 8c29d2a5ef0aedc55de66ca9a3cdc885 SHA-1: dd58a86504b94f5b84fec6fc88cd76c68bc2ff94 SHA-256: 661ad82a57626005c1de9eeafd5fcc3d5a97967fed78304d3faa082ea8838a1b
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file is identified as an image-based lure, containing a single image and minimal text, designed to trick users into clicking an action. The primary heuristic indicates a link through a URL shortener, specifically 'monsher.page.link/EvNc'. While the URL itself is marked as benign, the overall pattern suggests a phishing or malware delivery attempt, potentially using JavaScript for redirection.

Machine Learning

  • Nyx PDF Classifier clean score 0.1050

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 23 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://monsher.page.link/EvNc 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_off00004e3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E3C 5436 bytes
SHA-256: 6e04c145d8137ca45f958389d7418cff3d02f1875a7f232ea40062b0a818f971

Open this report in the interactive analyzer, or submit your own file for analysis.