MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, a technique often used to create link farms for SEO manipulation or to distribute malicious content. One of the extracted URLs, 'https://ttraff.ru/pify?keyword=epidemiologia+veterinaria+michael+thrusfield+pdf+download', is flagged as a malicious redirector. The ML classifier also 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.ru/pify?keyword=epidemiologia+veterinaria+michael+thrusfield+pdf+download
- http://files.utopiafilmfestival.org/uploads/1/3/1/4/131438453/4473963.pdf
- http://files.howesoundwoodcrafters.com/uploads/1/3/1/3/131398591/b36dc61ad5e5d.pdf
- http://porig.mitchellrudman.com/uploads/1/3/1/8/131856917/zoliji.pdf
- http://files.tuskegeebuildersacademy.org/uploads/1/3/0/7/130740232/soremizomefo-vumin-xokixoneku-pasib.pdf
- https://cdn.shopify.com/s/files/1/0434/7101/2006/files/koxofafoxi.pdf
- https://cdn.shopify.com/s/files/1/0431/5168/7848/files/tofemomaxilatolax.pdf
- https://cdn.shopify.com/s/files/1/0433/5170/3706/files/53494567927.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pazutorigixasozesilax.pdf
- https://cdn.shopify.com/s/files/1/0431/9353/2573/files/rrb_alp_cbt_2_answer_key_pdf.pdf
- https://cdn.shopify.com/s/files/1/0430/1612/6625/files/buruxamusafiwutefi.pdf
- https://cdn.shopify.com/s/files/1/0431/8186/7176/files/molikota.pdf
- https://cdn.shopify.com/s/files/1/0433/3993/9994/files/16195634943.pdf
- https://cdn.shopify.com/s/files/1/0427/5296/6812/files/69196515535.pdf
- https://cdn.shopify.com/s/files/1/0436/9963/4330/files/57701314309.pdf
- https://cdn.shopify.com/s/files/1/0428/5222/1091/files/55835363287.pdf
- https://cdn.shopify.com/s/files/1/0434/0459/1255/files/jalexejejajanetokuxolaka.pdf
- https://cdn.shopify.com/s/files/1/0427/6705/7063/files/86721860205.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_off000086cd.binc19a54e3dcc6866ad61b0cefa40de817d7d0c80cce742f989b1ef31ec4318c0a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x86CD | 5676 bytes |
font_01_sfnt_off00009a0e.bin7b450613fa3b7eb94302c3ae8835146226b7cbfb8524aa78a7df310f2015d9aa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9A0E | 10460 bytes |
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