Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c484cce3dfcf833…

MALICIOUS

PDF

21.8 KB Created: 2021-05-28 10:35:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: cd57980ee9d2204a297a8e688ba18346 SHA-1: 232261b764c37c777bd263c1205d3d22753bf3f5 SHA-256: 0c484cce3dfcf83313ad28a151f250d7debec3f40b6cde5a9b32e6857e6ca8a7
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only lure, designed to trick users into clicking on a disguised button. The embedded shortened URL, 'https://volde.page.link/o7L9', is the primary indicator of malicious intent, despite its benign reputation in this specific analysis. The document's structure and the presence of a click-outward action strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.1241

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://volde.page.link/o7L9 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_off00003ae3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3AE3 15352 bytes
SHA-256: 568a53de0f2e7dec117e8e7df3e42ddb964b5e92b06f1495abdb595a72072413

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