MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains numerous embedded links, many of which point to SEO redirectors and potentially malicious content, disguised as a worksheet with answers. The ML classifier strongly indicated maliciousness, and the heuristics confirm the presence of a link farm and malicious redirectors. No scripts were extracted, but the document's structure and embedded URLs suggest an attempt to drive traffic to malicious sites.
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.cc/wb?keyword=slopes%20and%20equations%20of%20lines%20worksheet%20answers In PDF document text
- http://files.authorkimfox.com/uploads/1/3/1/3/131379612/kemunafejebos_furugamoros_vagububike_wivosoruda.pdfIn PDF document text
- http://files.hairgonerogue.com/uploads/1/3/0/9/130969211/cc02211d3f87c19.pdfIn PDF document text
- http://files.caribbeanshadeproducts.com/uploads/1/3/0/7/130739878/5227294.pdfIn PDF document text
- http://files.crjartwork.com/uploads/1/3/1/3/131379608/4104096.pdfIn PDF document text
- http://files.landlandland.com/uploads/1/3/1/4/131406269/kuloxegegunemosasil.pdfIn PDF document text
- http://files.correllfarm.com/uploads/1/3/0/7/130739658/zajizogixuxasez_gelososexotug_luzesubiwezinuv_pinixasiga.pdfIn PDF document text
- http://files.claire-crafts.com/uploads/1/3/2/7/132740747/2549610.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://zobotik.files.wordpress.com/2020/07/53967991678.pdfIn PDF document text
- https://fudamowoz.files.wordpress.com/2020/06/jelawezilamuv.pdfIn PDF document text
- https://zebutenot.files.wordpress.com/2020/06/jisirejowemudofin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5099/0753/files/598808668.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8184/2341/files/gumakujapowejoxet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2749/6087/files/sedilowopekisuzuwefitibu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50878135704.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2119/7724/files/jimazef.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5131/0488/files/30446503996.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0161/8330/files/60130471010.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2561/3475/files/tomebibepaluto.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kilezolesosobusafo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2393/2311/files/99254871137.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_off00007053.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7053 | 5396 bytes |
SHA-256: 8c7925dc3af53e8b98c7dd208780fa1f0324989df65611420b178978057e4e7b |
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font_01_sfnt_off000082a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x82A5 | 13944 bytes |
SHA-256: dd25f46f07fe8a307cdf5e991e639f457dba86c98e54e8d1d717e1ad7540d179 |
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