Malicious PDF — malware analysis report

Static analysis result for SHA-256 242a84fa36cdaeaa…

MALICIOUS

PDF

21.3 KB Created: 2021-05-28 10:42:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 41d4cfe8fccf4b3085738b5fd438fbd1 SHA-1: 14711ddd6536e9338c422101e1143d72f792a9dd SHA-256: 242a84fa36cdaeaa6c30294a67a419a057a65cd99b9215dfcb961178fa618772
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file is identified as an image-only lure, a common tactic for phishing or malware delivery. It contains a clickable link disguised as an image, directing users to 'https://volde.page.link/HvGy'. While the URL itself is marked as benign, the overall structure and heuristic firings strongly suggest a malicious intent, likely to lead the user to a malicious site or download a payload.

Machine Learning

  • Nyx PDF Classifier clean score 0.1235

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/HvGy In PDF document text
    • http://www.microsoft.com/typography/ctfontshttp://www.fonts.comMicrosoftIn PDF document text
    • http://www.microsoft.com/typography/fonts/default.aspxIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003af1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3AF1 9692 bytes
SHA-256: 73a0de34100bd73bddf0ae2cdd58caadc571782f9d2e37f596bc005977cd1630

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