MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body text, though partially corrupted, includes a URL that appears to be the primary lure. The ML classifier strongly indicates maliciousness, and the presence of a link farm suggests an attempt to distribute malicious content or engage in SEO abuse.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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=applied+functional+analysis+pdf
- http://files.stu-acpa.com/uploads/1/3/1/4/131406535/1966712.pdf
- http://files.ravenclimbing.com/uploads/1/3/1/3/131398197/c4cb545fd2.pdf
- http://files.norfolkcellolessons.co.uk/uploads/1/3/1/4/131437832/783334.pdf
- https://cdn.shopify.com/s/files/1/0428/4035/9068/files/batamar.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89120948070.pdf
- https://cdn.shopify.com/s/files/1/0437/6949/5710/files/17726605705.pdf
- https://cdn.shopify.com/s/files/1/0430/4686/2997/files/62866953193.pdf
- https://cdn.shopify.com/s/files/1/0434/2883/9586/files/digital_marketing_ebooks_free_download.pdf
- https://cdn.shopify.com/s/files/1/0434/0213/3667/files/linexexunamanuzelenisabev.pdf
- https://cdn.shopify.com/s/files/1/0429/0550/1852/files/desenesipagagusupater.pdf
- https://cdn.shopify.com/s/files/1/0437/8342/2109/files/beatles_here_comes_the_sun_piano.pdf
- https://cdn.shopify.com/s/files/1/0439/5863/2606/files/sokepesowinijajixewizu.pdf
- https://cdn.shopify.com/s/files/1/0438/6390/0315/files/76100031328.pdf
- https://cdn.shopify.com/s/files/1/0433/9564/5589/files/devadawujogujofejax.pdf
- https://cdn.shopify.com/s/files/1/0444/2321/7318/files/pdf_accessibility_checker_software.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- https://cdn.shopify.com/s/files/1/0439/5863/2606/files/sokepesowinijajixewizu.pd
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006421.bin2d9bf5fb19c19901b0c9266118a9aaa2402b3817331e315b97827b6530973f99 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6421 | 5144 bytes |
font_01_sfnt_off000075cb.bincae74e76c531ef27206ad16ebbcfa47261bd02f17e3336ea97c7f90f13700c65 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75CB | 10120 bytes |
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