Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a447602409d1df8…

MALICIOUS

PDF

43.1 KB Created: 2020-08-11 18:55:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9eeb1f213e8c4e658879ba45751a4111 SHA-1: c098823ba0b919a80fce5000125c5d3b9622e0de SHA-256: 5a447602409d1df8639af949406d94dee0d1a0770eeddd714eb8ffc61da20ff2
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, masquerading as a document titled 'The oxford handbook of functional data analysis pdf'. The primary link redirects through 'ttraff.com', a known malicious redirector, likely leading to a phishing or malware download site. The ML classifier strongly indicated maliciousness, and the presence of multiple SEO-optimized PDF links further supports a malicious intent to drive traffic to potentially harmful content.

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=the+oxford+handbook+of+functional+data+analysis+pdf In PDF document text
    • http://files.belindabucknell.com/uploads/1/3/1/3/131378975/tiborejotaxis.pdfIn PDF document text
    • http://files.cookiesthenmilk.com/uploads/1/3/0/7/130776757/f9d1d9583f.pdfIn PDF document text
    • http://files.zetastatedkg.org/uploads/1/3/1/0/131069832/fifazajonenekade.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/1/0435/1285/6731/files/57323911191.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5471/0427/files/wafuwagedemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kosetomamevisired.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9237/6741/files/business_plan_sample_kenya.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6560/6301/files/aspiration_pneumonia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1185/0918/files/79669998034.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8943/6580/files/rosodej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6152/7206/files/exercicios_tabela_periodica_com_gabarito.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5458/0390/files/social_anxiety_assessment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0258/4480/files/modern_calligraphy_fonts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3260/8921/files/goborobetuwena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8371/9071/files/effects_of_childhood_obesity.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1872/2216/files/36060840032.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5799/5160/files/58397411318.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 4

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_off0000684d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x684D 5564 bytes
SHA-256: c2696e49cfb1294e668d208538f335d4a799a3fd76e2f12f41a1a252320055ee
font_01_sfnt_off00007b40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B40 10552 bytes
SHA-256: e02842b4284f0a87694a35cac9c702c6a6b6df98e90600b5aa8d3ba3bd13348c

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