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 redirectors and SEO link farms, indicating a malicious intent to drive traffic to potentially harmful sites. The document body, though heavily obfuscated, contains URLs that are also present in the heuristics, suggesting a phishing or malware distribution lure. The ML classifier strongly flagged this PDF as malicious.
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.club/wix?keyword=graphing+piecewise+functions+worksheet+algebra+2 In PDF document text
- http://files.tayahanson.com/uploads/1/3/1/1/131163953/nuvokufube_wixikenag.pdfIn PDF document text
- http://vemaxabim.parohia-kassel.de/uploads/1/3/1/4/131438397/kuwimawolusutuv_zenagevok_zubolofujofu.pdfIn PDF document text
- http://jewaruk.readingtolearnsouthafrica.com/uploads/1/3/1/4/131437092/gukumefisatu-dorir.pdfIn PDF document text
- http://zusazok.ausysaddles.com/uploads/1/3/0/9/130969018/tepezugosasituduri.pdfIn PDF document text
- http://files.doncasterchoralsociety.org/uploads/1/3/1/8/131871414/03d3f7.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/1/0432/2151/6449/files/polexevazile.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7300/2902/files/bladder_training_with_foley.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5391/6053/files/32474786477.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/8150/4670/files/92363423934.pdfIn PDF document text
- https://dbcec4de-b883-46d7-ad9f-b0a62847ccae.filesusr.com/ugd/b1dabf_c26c4fc701174466aed53064dafeb428.pdf?index=trueIn PDF document text
- https://c7b431ce-8cfe-4e8f-8f3a-0e75883650ca.filesusr.com/ugd/efb3f0_4e13fef8fbd74d6c93279531c5119d84.pdf?index=trueIn PDF document text
- https://ee87493f-4587-4948-80d9-06c8183028da.filesusr.com/ugd/8e66a5_3175097a0ac8472b8cf672bad9269d82.pdf?index=trueIn PDF document text
- https://eff84653-f901-4192-bbec-e374a24c91f9.filesusr.com/ugd/724bd4_abb9e80310dd4cf18e2417bff566eae9.pdf?index=trueIn PDF document text
- https://39427c11-bd3d-4eed-ae9c-92fec0b6fa91.filesusr.com/ugd/43d2fc_0fd8264decfa49fb98294db2c23822eb.pdf?index=trueIn PDF document text
- https://0f97e63a-4e48-41ea-a02a-e3f2e0c84285.filesusr.com/ugd/a6e5e9_1f1fc9e12ccc44adaffedeb2e6baa387.pdf?index=trueIn PDF document text
- https://d51b215f-117b-4824-bc2c-e00e697574f2.filesusr.com/ugd/21b4a7_dd5edaf102df4e7ba1b365def784aad2.pdf?index=trueIn PDF document text
- https://e91b8e3a-fb82-4db3-9739-40094bad59b7.filesusr.com/ugd/04e6f9_69eb7d911cfd466eb48e7a195abdf764.pdf?index=trueIn PDF document text
- https://b8b1b886-1d7a-43a1-8aa3-c9430574bb52.filesusr.com/ugd/0c8cc8_4169dc403be944b2a0062e88b4a9adeb.pdf?index=trueIn 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_off00006453.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6453 | 5736 bytes |
SHA-256: 5260d13c3e1c4926e15d635abd18263fed35c6df0bb04aaded88babe0ef38c0d |
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font_01_sfnt_off000077f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x77F4 | 10312 bytes |
SHA-256: 2f8a2f76a092b82cc62aa8941a9dd8ab27d249a85b2208ac62ba3d07ce600dd0 |
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