MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that redirect to a known malicious domain, identified as a redirector for SEO link farms. The document body, though obfuscated, contains text related to 'singular and plural nouns worksheet answers' and a URL pointing to the malicious redirector, suggesting a phishing or scam lure. The ML classifier strongly indicates 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.ru/pify?keyword=singular+and+plural+nouns+worksheet+answers In PDF document text
- http://files.ovationentertainmentgroup.com/uploads/1/3/1/4/131408117/d61f0f40c.pdfIn PDF document text
- http://files.parkcitybrewery.shop/uploads/1/3/0/8/130814245/2fe8725a.pdfIn PDF document text
- http://files.thomaslabandz.com/uploads/1/3/2/6/132695714/7c31ef8e7445c24.pdfIn PDF document text
- http://files.slolivingdesigns.com/uploads/1/3/0/9/130969148/wozimetu-berilapaluxano.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/1/0438/1537/0912/files/43906131756.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6522/1015/files/mevukevamot.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/9899/4856/files/nafisixurojo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1011/3188/files/bonnie_and_clyde_biography.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1700/2405/files/ladubufugadelu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5346/6271/files/perugisozosogigopam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9573/6988/files/worn_out_faces.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9912/0033/files/xerudegopazuj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5864/2595/files/foo_fighter_torrents.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sotuxinonuwirumedubisaz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0453/4665/2315/files/como_fazer_uma_assinatura_digital.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2885/6477/files/nepas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9945/5642/files/64169822630.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8145/0147/files/19339807448.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cd78.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD78 | 2828 bytes |
SHA-256: 85b692c1c636aed9ab1240d2a7361179fdd6c0849396a06064984f922e967b4f |
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font_01_sfnt_off0000d772.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD772 | 5480 bytes |
SHA-256: 0532a0b6f1a0aeaca0c192cc16bdff4b5f3c020579f8c46c079322417218f654 |
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font_02_sfnt_off0000ea1d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA1D | 9932 bytes |
SHA-256: c37cb833704057f913f4e1e3807080054a5da3d30865bbbc4780a01ad324d550 |
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