MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to a redirector URL that is known to host malicious content. The document body, though heavily obfuscated, contains the same redirector URL and appears to be a lure for educational materials. The ML classifier strongly indicated maliciousness, and the presence of a malicious redirector link confirms the intent to lead users to harmful 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=identifying%20verbs%20worksheet%20high%20school In PDF document text
- http://gaxag.nycmoneymavens.com/uploads/1/3/0/7/130775085/557267b99bd.pdfIn PDF document text
- http://zerokafu.jacksonbrownentertainment.com/uploads/1/3/1/4/131408970/zawodi.pdfIn PDF document text
- http://gisosos.aimusa.info/uploads/1/3/0/8/130874493/watikinav.pdfIn PDF document text
- http://nekepu.koolauloacalendar.org/uploads/1/3/1/8/131871921/tifenupid.pdfIn PDF document text
- http://files.thorntongreg.com/uploads/1/3/0/9/130969498/daxasevakimolo.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/1/0435/4765/6343/files/8810080318.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8920/6174/files/36330526728.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7612/4821/files/pdf_encyclopedia_of_modern_bodybuilding.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9773/5843/files/66928637294.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/geligup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7741/0720/files/64654481810.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7321/6412/files/awg_to_mm_chart.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6274/7548/files/gelonumimotojeveg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7005/4805/files/genki_2nd_edition_workbook_answer_key.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9557/2126/files/95306867772.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6341/0845/files/76961069358.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1506/1153/files/lawutozu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/5726/5305/files/34075996925.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9941/3925/files/areas_of_artificial_intelligence.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zaxolaxowixinetubosi.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_off00007c30.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C30 | 5468 bytes |
SHA-256: db53d89e5ebff6449a41cdf7dabec438c6c7e17dc8dfab9ae0ac37209d2f167c |
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font_01_sfnt_off00008ee2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8EE2 | 10044 bytes |
SHA-256: 5c37ccd16aaba8523ef290391136e1fcd966879a9c6206160b97e1fa4cd568cd |
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