Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b15f6234c10cca…

MALICIOUS

PDF

65.1 KB Created: 2020-11-25 09:33:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-28
MD5: 3c38519c552ec0ff442dd3caa952063a SHA-1: 8bacbb5ce4649d3578486ef86c01639c46fdf725 SHA-256: 72b15f6234c10ccab589146be9c9ad63b42e99591eb4febd6c558f0c044ccae6
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://cctraff.ru/123?utm_term=personal+finance+final+test+answers In PDF document text
    • https://voduzivet.weebly.com/uploads/1/3/1/6/131607522/jazujapejib.pdfIn PDF document text
    • https://lagukekejase.weebly.com/uploads/1/3/0/8/130815031/8631945.pdfIn PDF document text
    • https://vunisanelebori.weebly.com/uploads/1/3/3/9/133999195/7587996.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/muxegeza/sedexujuva.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5cb133ab-91de-4bb4-a049-ddba4ab155b0/craigslist_lubbock_texas_pets.pdfIn PDF document text
    • https://s3.amazonaws.com/dixaleko/gaddi_tu_manga_de_mp3.pdfIn PDF document text
    • https://s3.amazonaws.com/pujirageg/33977227068.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85e637cc-60e2-4e9c-8fd6-4d34a25b186b/80086870956.pdfIn PDF document text
    • https://s3.amazonaws.com/fodose/mediheal_collagen_sheet_mask.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0833d086-0436-4fa5-912b-eae376ab7d58/xovasikagotoda.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c159.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC159 4968 bytes
SHA-256: 5a3ade99b884c6f79315380eab6ec1541924656bd1080f4aaddf705d8372250e
font_01_sfnt_off0000d262.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD262 11132 bytes
SHA-256: cee8571e9c32c4dc82b83cd420ee813047398ca252f52b212992f89f08e874aa