Malicious PDF — malware analysis report

Static analysis result for SHA-256 dad129c7f419f280…

MALICIOUS

PDF

41.4 KB Created: 2020-08-18 19:18:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 322a9519f44cef51cd182890254e5ff7 SHA-1: 778494f6b2981cb6e6edb901df694521133d4d5d SHA-256: dad129c7f419f280d77177704b40e120771696d2c98ded2f6c167b846dbc48d2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK pointing to ttraff.com. The document body, though heavily obfuscated, contains text related to 'Habitos alimentarios en los ni os pdf' and the malicious URL, suggesting a lure. The PDF also exhibits characteristics of an SEO link farm, with many links pointing to Shopify domains, likely to manipulate search engine results.

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=habitos+alimentarios+en+los+ni%25C3%25B1os+pdf In PDF document text
    • http://files.teloshospitality.com/uploads/1/3/0/8/130874122/b0581bd9.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/1/0430/3552/5282/files/44279365290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3825/2954/files/xadapuxavomawitifoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5189/1358/files/bush_francis_catatonia_rating_scale_scoring.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4686/3005/files/jojarap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6482/8839/files/xemafonumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4235/5865/files/jidoniwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7161/8723/files/android_phone_with_barometer_sensor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8233/3856/files/96227703479.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1428/3686/files/2015_toyota_sienna_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9114/0512/files/tufafopezatukodokajibet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0300/9430/files/78068409119.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3997/2773/files/microsoft_excel_course.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1753/4629/files/76268773429.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 2

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_off00005fa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FA3 5500 bytes
SHA-256: 5ee7c29c376c9f7c9cc97069936b5e868896bb1cef3193e79024ff226642535b
font_01_sfnt_off000071eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71EB 11380 bytes
SHA-256: e4a7ba35be84ab41da8941e552f99391902b94e4fbd2b40f8d1e1c99860cb65d

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