MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.com) and then to various Shopify-hosted PDF files. This indicates a link farm or SEO poisoning technique designed to drive traffic to malicious infrastructure. The primary malicious URL identified is https://ttraff.com/pify?keyword=pdf+worksheet+on+factoring+polynomials, which likely serves as a gateway to further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF 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.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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=pdf+worksheet+on+factoring+polynomials In PDF document text
- http://files.sharingeducationlearningforlife.org/uploads/1/3/2/7/132712206/0265b60a.pdfIn PDF document text
- http://vuradasab.creeksidekennelsgsd.com/uploads/1/3/1/4/131437914/9d030598a4c.pdfIn PDF document text
- http://files.shaunagoodingreiki.com/uploads/1/3/0/8/130813931/sinisinevek.pdfIn PDF document text
- http://kaxezikuk.chrisschnabelart.com/uploads/1/3/1/3/131378776/28f449e975b6a.pdfIn PDF document text
- http://kefijuki.howardfriskphotography.com/uploads/1/3/0/9/130969060/fojerujisimarego.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/1/0433/3905/5253/files/30729056353.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5693/8658/files/media_query_for_desktop_tablet_and_mobile.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1678/8900/files/speed_queen_commercial_washer_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4356/8278/files/fujasugagajixuwok.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7863/9013/files/vikupisuzefoteximefis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8260/2910/files/dafiwekirajidukaposimujed.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0450/3266/9334/files/synonyms_words_in_english.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7107/7526/files/87687061080.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7375/7603/files/95958750115.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6688/4250/files/nivelowanukapowo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/13534048661.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.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005f8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F8A | 5828 bytes |
SHA-256: 2d6ec0d66a95bb768474f73b72e68cfb09d3102fe36af925fb6265db6ee7ce3f |
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font_01_sfnt_off0000734f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x734F | 10400 bytes |
SHA-256: ebab9a2ef8191ac4e4ae9804de86071fda5448a1805b0aa4e32bbe90fe0bd288 |
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