Malicious PDF — malware analysis report

Static analysis result for SHA-256 86708916f8e47eb7…

MALICIOUS

PDF

42.9 KB Created: 2020-08-25 16:28:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2eddc10f41cd551c09e7f250ca5a4c24 SHA-1: 14c071e664418d15fa5478e5c5a9b4c95d598efc SHA-256: 86708916f8e47eb73007a4e0d8dded64566c6feeb86fc0af6d70dcee979f34b5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a link farm and a redirector URL designed to lure users into clicking on what appears to be legitimate content. The primary malicious link, https://ttraff.cc/pify?keyword=mitral+valve+prolapse+prophylaxis+guidelines, is identified as a known malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://ttraff.cc/pify?keyword=mitral+valve+prolapse+prophylaxis+guidelines In PDF document text
    • http://dezola.binghamswimschool.com/uploads/1/3/1/8/131871921/jepuwolivewi.pdfIn PDF document text
    • http://vaban.oconnorsmusic.net/uploads/1/3/0/9/130969042/6647861.pdfIn PDF document text
    • http://files.buybacktheblockvip.org/uploads/1/3/1/0/131069886/xobuje.pdfIn PDF document text
    • http://runupeza.womensclinicatlantaabortion.com/uploads/1/3/1/6/131636948/3988378.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0973/5845/files/pefarebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7869/4565/files/52606204095.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7245/2776/files/fetisife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7034/0772/files/xadekufukexufazupofajebes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5653/6479/files/wakanekofepixabozakinezi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6503/1321/files/9455355844.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3134/6856/files/benefits_of_entrepreneurship_education.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/7588/0348/files/leg_cellulitis_treatment_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5004/9446/files/all_of_statistics_solutions_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2361/3595/files/gimp_export_to_multiple_pages.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/2467/8813/files/86814606489.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_off000069d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69D2 5456 bytes
SHA-256: f4619f0afe6dd87d8021859c0c344cde61e8595a8e791ed9a5b307aeefee7f45
font_01_sfnt_off00007c69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C69 9888 bytes
SHA-256: bed8aa7e7faa1d4ded97ea96944e9dc9bd287fa33dda9d5119bfe1ae5b75838b

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