MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One critical heuristic firing indicates that the PDF links to known malicious redirector infrastructure via the URL https://ttraff.com/pify?keyword=membrane+potential+physiology+pdf. This suggests the document is designed to redirect users to malicious sites under the guise of providing informational content.
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=membrane+potential+physiology+pdf In PDF document text
- http://files.simply-creations.com/uploads/1/3/1/3/131381607/fudidilakuvekepewug.pdfIn PDF document text
- http://puwugu.atonewellness.com/uploads/1/3/1/6/131636612/572269.pdfIn PDF document text
- http://buximu.josezayasdirector.com/uploads/1/3/2/6/132695569/5927961.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/1/0428/9835/8432/files/nitopufekuriwuk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7407/6315/files/mitchell_labor_time_guide_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/4995/7029/files/pijikawudojij.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/94323725826.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9454/0439/files/angiogenesis_in_wound_healing.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/9579/1518/files/82634919786.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8531/4715/files/the_magicians_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/9284441163.pdf?v=1594212706In PDF document text
- https://cdn.shopify.com/s/files/1/0433/0350/1989/files/52633260021.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9559/5938/files/xonotowuzipefasejeralax.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2017/3983/files/nojokijividizipo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0311/7721/files/edit_content_in_word_online.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/7450/1273/files/napupowekiwadexukub.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_off00006306.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6306 | 5492 bytes |
SHA-256: 567f9ecca405ce681a5b863a23b167aaad4eaf50e90ac287a2a8c14d5d0d332f |
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font_01_sfnt_off00007582.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7582 | 15776 bytes |
SHA-256: bf638ea857efcb2516727f366f61f251529ff2b00d3ec89f175df377aac21056 |
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font_02_sfnt_off0000a634.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA634 | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
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