MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links, with one specifically pointing to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'staphylococcus aureus skin infection' and a URL that appears to be part of a link farm designed for SEO manipulation. The ML classifier strongly indicated maliciousness, supporting the conclusion that this PDF is intended to redirect users to harmful content.
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.ru/pify?keyword=staphylococcus+aureus+skin+infection+pdf
- http://files.tableviewlodge.co.za/uploads/1/3/0/9/130968981/fuvupuzajovur.pdf
- http://files.columbiahill.org/uploads/1/3/0/8/130813887/fobuwi.pdf
- http://files.sablecatalchemy.com/uploads/1/3/2/6/132682820/zejixaga_nerakerelutipe_polifep.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0437/4695/1319/files/computer_lab_technician_interview_questions_and_answers.pdf
- https://cdn.shopify.com/s/files/1/0432/2597/2904/files/riripufoxesemowakujam.pdf
- https://cdn.shopify.com/s/files/1/0432/1542/1599/files/bank_10th_bipartite_settlement.pdf
- https://cdn.shopify.com/s/files/1/0433/9751/3381/files/vezenakuwovirunibugapumik.pdf
- https://cdn.shopify.com/s/files/1/0430/7533/8389/files/xilewiwazeviviwisegex.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rewosegukedisupagur.pdf
- https://cdn.shopify.com/s/files/1/0430/7651/8049/files/71174687322.pdf
- https://cdn.shopify.com/s/files/1/0448/1833/3858/files/application_layer.pdf
- https://cdn.shopify.com/s/files/1/0436/8410/2297/files/b._v._ramana_higher_engineering_mathematics_mcgraw_hill_education.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00014f0e.bin174b945ee3de19aec0fbae1ee20575c4963904a924ee510091abecb8f5a134b6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14F0E | 5512 bytes |
font_01_sfnt_off000161c5.bine5c4821e2e202ce8a7a2d0ba8c50d7800ba3b287a4be5226f22a3c1fef4fdaeb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x161C5 | 13048 bytes |
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