MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links, with one specifically pointing to a known malicious redirector at 'https://ttraff.ru/pify?keyword=amazing+grace+canadian+brass+trumpet+pdf'. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this. Additionally, the PDF exhibits characteristics of an SEO link farm, with numerous links to external PDFs, including 'https://cdn.shopify.com/s/files/1/0434/1016/1829/files/34640595824.pdf'. The ML classifier strongly indicates maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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=amazing+grace+canadian+brass+trumpet+pdf In PDF document text
- http://files.crunchychristianmama.com/uploads/1/3/1/1/131164358/xowusixizoka_lasugojixukedad_difasezojit_jipavubo.pdfIn PDF document text
- http://roxezo.completecritter.com/uploads/1/3/1/3/131379730/pevatoxer.pdfIn PDF document text
- http://vebeku.fountainoflifeministrieshavelock.org/uploads/1/3/1/8/131871699/juxakiterakewo_mizebilob.pdfIn PDF document text
- http://nakewaf.rahbuilding.co.uk/uploads/1/3/0/7/130740178/wavadigo.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/1/0434/1016/1829/files/34640595824.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/0925/9158/files/agritourism_in_the_philippines.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6382/0959/files/wedebowuna.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/7281/3211/files/carbohydrate_metabolic_disorders.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0874/3834/files/discord_how_to_quote.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1104/7575/files/nutaxumejewozuvisiledero.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6990/5825/files/input_validation_python.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xozujegemuzudileruzodedus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1624/1831/files/xvive_u2_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9262/1978/files/wka_rule_book.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_off000070f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x70F4 | 5620 bytes |
SHA-256: 0ed62d48c0045b7f4a73146432533c973f7287a24e10017c9d8abaf6df1f97b5 |
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font_01_sfnt_off000083ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x83EC | 14276 bytes |
SHA-256: 18266e4b20b046f0d2a2f635eba5e48457f1d451fadc32597a91cff37a077ab3 |
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