MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.com, which is designed to lure users to malicious content. The document body, though heavily obfuscated, contains the same URL. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, likely for SEO manipulation or to host further malicious content. The ML classifier strongly indicated maliciousness.
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=probability+measure+theory+pdf In PDF document text
- http://junulibi.madislandlibrary.org/uploads/1/3/1/8/131871921/6741851.pdfIn PDF document text
- http://files.averagejoesraam.com/uploads/1/3/0/7/130739062/1387123.pdfIn PDF document text
- http://files.inkandoakdesignco.com/uploads/1/3/0/8/130814120/644b8e229a.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/1/0431/5031/1579/files/tolunefitinudulodewi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8833/9354/files/23100459489.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3977/6159/files/71303912795.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7012/8277/files/22325971810.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7920/4006/files/acromegalia_tratamiento.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23535065851.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8323/5489/files/39072894653.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5630/7107/files/dipole_antenna_theory.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5111/3887/files/gitumikogopab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1445/3410/files/85984840983.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2588/2518/files/51447992266.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0981/0343/files/voganusifositefer.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1829/6228/files/vaxupepo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/4424/7451/files/presto_electric_griddle_manual.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00008629.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8629 | 5524 bytes |
SHA-256: f5d49e17bdf9a21142e9e5ad0b7a5311c895e05165f51a1929d934b7bc9fd312 |
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font_01_sfnt_off000098c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x98C8 | 11384 bytes |
SHA-256: 50e1f394dce0f46c4edb5ed47f4d6aa4e78c1c519fec8b4b0358470f7d92877b |
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font_02_sfnt_off0000bf35.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF35 | 16788 bytes |
SHA-256: 67ccb6955cdb2549793dd7fea65475ce5bc4470101d340280bca2017740d1b99 |
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