MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, with one prominently pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text suggesting it is related to educational materials, likely a lure. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs supports a phishing or redirection attack pattern.
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/wix?keyword=exercices+sur+les+%25C3%25A9chelles+5%25C3%25A8me+pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/b8c837_d21579b3702248fe8052b3cb6aa524ed.pdf
- https://static.usrfiles.com/ugd/b8c837_a6b220cd9027416581aa06a027d7ee98.pdf
- https://static.usrfiles.com/ugd/b8c837_3e9074e7aae7466ab2967f2a62113d21.pdf
- https://static.usrfiles.com/ugd/b8c837_27a1d5dae6d6492e9c161aa61f94b069.pdf
- https://static.usrfiles.com/ugd/b8c837_82dd0b4838554551a9e9468b73b2aab4.pdf
- https://static.usrfiles.com/ugd/ac51ce_61939d57821b4802b2ca6bdf75f3cbbd.pdf
- https://static.usrfiles.com/ugd/724fb5_a44dfcd095ef4796b4c92cd272e83794.pdf
- https://static.usrfiles.com/ugd/dba42a_380319f60cd54ccaa13c66fa399c10fe.pdf
- https://static.usrfiles.com/ugd/cc14e4_7680a7e4865141bb89f9fe6d9d2d75eb.pdf
- https://static.usrfiles.com/ugd/a1fb72_48c65fe9e68b4bc0bbee8b8c714dd03c.pdf
- https://static.usrfiles.com/ugd/f1780b_cf5b49e01abd435eb27bf1bb0bab61a0.pdf
- https://cdn.shopify.com/s/files/1/0433/9499/0247/files/62349456292.pdf
- https://cdn.shopify.com/s/files/1/0429/4030/1478/files/pingpong_root_5._1._1.pdf
- https://cdn.shopify.com/s/files/1/0429/2775/1321/files/basic_block_diagram_of_communication_system.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_off00005251.bin935dffd20c9f5b615791b8a18284d158c5c12c131624955e7002d69bd890b97d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5251 | 5616 bytes |
font_01_sfnt_off000064c0.binbb1ddb214756c498a2b3b413360814aacc2212467389fa2140d0aa11deab8771 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x64C0 | 11708 bytes |
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