MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, many of which point to redirectors and potentially malicious infrastructure, suggesting a phishing or malware distribution attempt. The presence of a link farm and a redirector URL indicates an effort to obscure the final destination and potentially trick users into downloading further payloads. The ML classifier strongly flagged this PDF as malicious.
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.cc/pify?keyword=indoor+air+quality+guidelines+and+standards+malaysia In PDF document text
- http://files.sustainablemaize.com/uploads/1/3/0/9/130969428/vadosun_lomazezenu_bewufanoba_pofuxamotofe.pdfIn PDF document text
- http://vavomig.westspringfieldbouncehouserentals.com/uploads/1/3/0/7/130738693/xibis-pamukutu-jufad.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0434/4463/3750/files/sewing_machine_repair_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5964/9429/files/67223456036.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1207/7206/files/58355630148.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2068/1377/files/automatic_control_systems.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0454/6845/0968/files/vaxowonuvoxal.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6866/1660/files/75300519193.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/8098/8325/files/mri_anatomy_knee.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2885/7503/files/50243214571.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7252/0352/files/american_heart_association_guidelines.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1568/3744/files/7716362592.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_off00005577.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5577 | 5192 bytes |
SHA-256: 255289c3a23914ac879cd182987da7661c597c8d27a6469bb778efedcb8fc01b |
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font_01_sfnt_off00006703.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6703 | 9940 bytes |
SHA-256: 6982d710d4aa2e74e4ac35e5cd41cfbc62ea349fdc00feb73f1e361d5578934f |
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font_02_sfnt_off000088c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x88C8 | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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