Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf7502efbb31c403…

MALICIOUS

PDF

48.2 KB Created: 2020-08-03 16:48:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6cd6d39493832f9cc27671e1b0e441dc SHA-1: a387cfaf73349d5c24456b56937d62c70e9069df SHA-256: bf7502efbb31c403b773eccef4dc9ecd44e73db26718390643d8fe43d81f7b0e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=po%25C3%25A9tica+arist%25C3%25B3teles+pdf'. This indicates an attempt to redirect the user to a malicious site. The document body, though heavily obfuscated, contains this URL and numerous other links to PDF files hosted on Shopify, suggesting a link farm or SEO poisoning tactic to distribute malicious content. The primary attack pattern is a lure to a malicious redirector.

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.com/pify?keyword=po%25C3%25A9tica+arist%25C3%25B3teles+pdf In PDF document text
    • http://files.projectxlacrosse.com/uploads/1/3/0/7/130739059/bexelosamogusijuv.pdfIn PDF document text
    • http://files.adascrafts.com/uploads/1/3/0/7/130775520/9480893.pdfIn PDF document text
    • http://files.thewheelhousegrill.com/uploads/1/3/1/8/131856392/zobazo.pdfIn PDF document text
    • http://files.kdyllon.com/uploads/1/3/1/8/131856815/3455629.pdfIn PDF document text
    • http://files.houseofblackart.com/uploads/1/3/1/3/131383743/1357375.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/1/0431/5712/7336/files/4643845611.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3364/7525/files/4178266920.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7918/8118/files/zoduxibow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9986/4734/files/sepokejuwofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89352644259.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2256/5032/files/pebesilesa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6772/6232/files/banefegapawamakige.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9899/5877/files/sanuvowudisik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3754/8959/files/ruwowemajupibinesuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/8138/8452/files/subnautica_how_to_recharge_battery.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4832/1692/files/liwerimisotunaremiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2935/6959/files/toefl_practice_test_sample_pdf.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007a3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A3E 5428 bytes
SHA-256: db329d3c12d7a092cb12d53fd9c1d0cd354f50271e8c92dd17cae43ebaa581ae
font_01_sfnt_off00008c35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C35 11608 bytes
SHA-256: 0d2e3bd06c73a00faade5db070b6e6f0e7bc533c9c2085257a8b791ed7c70c11

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