MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, including one pointing to a known malicious redirector, suggesting a phishing or scam attempt. The document body, though heavily obfuscated, contains the primary redirector URL and appears to be a lure for users interested in language differences. The ML classifier strongly indicates maliciousness, and the presence of multiple external links supports a link-farming or redirection attack pattern.
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.com/pify?keyword=british+words+vs+american+words+pdf In PDF document text
- http://files.tangosverige.com/uploads/1/3/1/8/131857717/2fd9243bb3780.pdfIn PDF document text
- http://files.endoftenancyservice.com/uploads/1/3/1/3/131398097/namakiramije.pdfIn PDF document text
- http://files.i3study.org/uploads/1/3/0/7/130775607/xusumawexilo.pdfIn PDF document text
- http://files.millennial-media.net/uploads/1/3/2/7/132740275/5505793.pdfIn PDF document text
- http://batexozap.moeglitzxglam.com/uploads/1/3/1/3/131383483/7894892.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/1/0437/0441/8455/files/t25_total_body_circuit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9775/9643/files/179082928.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/5778/9593/files/arma_2_launcher.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7731/1391/files/raramuzinixodesu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1092/4437/files/fuwov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0450/9850/0259/files/que_es_epigenetica.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2597/2904/files/58249848562.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9394/1671/files/31218351278.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7372/3800/files/29156982937.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0446/1376/3235/files/advanced_english_grammar_a_linguistic_approach_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6803/8049/files/bagaz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8140/8420/files/sofiranukexik.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6697/3589/files/88209689694.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4896/7061/files/antigona_furiosa_descargar_gratis.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_off00006943.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6943 | 5564 bytes |
SHA-256: 72f7dfd0671c0072f263a0717bd8c387540887668bae9aae36b9cf9197aa373f |
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font_01_sfnt_off00007c28.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C28 | 10060 bytes |
SHA-256: d40b447b96726a7da244fd3e2ea7fb7b840a895c8dc6d61fd6c7260fc8828604 |
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