MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a malicious redirector link disguised as a research paper on human respiratory systems. This link, 'https://ttraff.com/pify?keyword=physiology+of+human+respiratory+system+pdf', is designed to lead users to harmful infrastructure. The document also features a large number of external PDF links, many hosted on Shopify, which is characteristic of SEO link farm abuse. The ML classifier strongly indicated maliciousness.
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=physiology+of+human+respiratory+system+pdf
- http://files.patrickhawkins.com.au/uploads/1/3/1/3/131381607/bamomenuxug.pdf
- http://files.jghsmarchingeagles.org/uploads/1/3/1/8/131872032/214254.pdf
- http://files.rachelschechtman.com/uploads/1/3/0/9/130969950/2610129.pdf
- http://witaturo.nepscholarshipfund.com/uploads/1/3/0/7/130775162/tupogudav.pdf
- http://files.projectwellbeing.net/uploads/1/3/0/7/130740141/4871470.pdf
- https://cdn.shopify.com/s/files/1/0437/9194/1781/files/white_rodgers_50a50_241_manual.pdf
- https://cdn.shopify.com/s/files/1/0433/8502/8758/files/70331330870.pdf
- https://cdn.shopify.com/s/files/1/0433/6661/3141/files/bukhari_shareef_arabic.pdf
- https://cdn.shopify.com/s/files/1/0434/6635/8934/files/wigopodowofunana.pdf
- https://cdn.shopify.com/s/files/1/0435/9972/4703/files/bijopesekazabibadireko.pdf
- https://cdn.shopify.com/s/files/1/0432/6454/0840/files/nobajazusa.pdf
- https://cdn.shopify.com/s/files/1/0435/5339/0743/files/ruxadil.pdf
- https://cdn.shopify.com/s/files/1/0435/8933/7256/files/urinary_system_functions.pdf
- https://cdn.shopify.com/s/files/1/0435/1610/0776/files/autocad_3d_plant.pdf
- https://cdn.shopify.com/s/files/1/0440/7453/3014/files/pawilozegixupenusurot.pdf
- https://cdn.shopify.com/s/files/1/0430/8697/1029/files/agenda_2020_para_descargar_gratis.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/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000686c.bin52146fe6ec326c0d51f7e4529b4b25864759b49e11f82ee0fcdbcf780c4a5e53 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x686C | 5556 bytes |
font_01_sfnt_off00007b2e.bin108645769d78eccf4d89b1589f497f18515b97ad473988a8eabb9d7676d3ad69 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B2E | 10212 bytes |
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