MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. The link leads to 'ttraff.com', a known malicious redirector. Additionally, the PDF exhibits characteristics of a link farm, embedding numerous external links, many of which point to Shopify-hosted PDFs. The ML classifier strongly flagged this PDF as malicious. The primary attack vector appears to be social engineering, luring the user to click a link under the guise of accessing a worksheet answer key.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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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=practice+worksheet+graphing+quadratic+functions+answer+key In PDF document text
- http://ginojajot.brittanyspanielclub.com/uploads/1/3/1/4/131406665/guzonori-wajezajera.pdfIn PDF document text
- http://xitewokux.edgeofthewilderness.org/uploads/1/3/0/7/130739349/vuwatajomuwuvod_pebukunepawaxu_sowotibexo.pdfIn PDF document text
- http://files.tandhathletics.com/uploads/1/3/0/7/130775427/8474639.pdfIn PDF document text
- http://tesinu.environmentalproteomics.org/uploads/1/3/1/3/131398157/8816321.pdfIn PDF document text
- http://files.iconbiketours.com/uploads/1/3/1/4/131482886/6922958.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/1/0437/6900/4190/files/acc_guidelines_for_heart_failure.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7179/8436/files/fivipelosu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3551/7337/files/53022037312.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9587/6003/files/lufunenuxifozamopifuwa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7857/4490/files/vepupesawoxanu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1908/2651/files/public_stun_servers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4666/4349/files/calculus_ron_larson.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2888/1313/files/general_organic_and_biochemistry_7th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1822/1730/files/maguvisasuputupakakuvijak.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3140/3413/files/19492349589.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7727/0692/files/as_time_goes_by_piano.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4929/5770/files/sifiw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23281911610.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_off00005ffc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5FFC | 5768 bytes |
SHA-256: 438161b364965bc92cea8705e98e82c9286aedb90b73d9c75c98bfc8bcf585ca |
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font_01_sfnt_off000073a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73A6 | 9884 bytes |
SHA-256: 62074e32a6feaad9e5a478e38a001af23a89f6dd34705fbc41a1b5d2cd33a211 |
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