MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, with at least one pointing to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the malicious URL and references to other PDF files, suggesting a link farm or SEO spam campaign designed to drive traffic to malicious infrastructure.
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=reading+comprehension+passage+7th+gr
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/314c35_d5b549413189478e9546da92680f4cf4.pdf
- https://static.usrfiles.com/ugd/b8c837_96ef957819994517b88d579f13cb03cc.pdf
- https://static.usrfiles.com/ugd/b8c837_b0da1d4032d04b75bf8ad127122a9d82.pdf
- https://static.usrfiles.com/ugd/a4e402_80c59829f1834e4b9f64ca0316a743c7.pdf
- https://static.usrfiles.com/ugd/b972d5_458693891a2b49a6aef8ff9ff95c082b.pdf
- https://static.usrfiles.com/ugd/9e41f0_69113173249445e5b97519c50adec891.pdf
- https://static.usrfiles.com/ugd/9c43ec_a1d8355364024092beffa94d62a46fea.pdf
- https://cdn.shopify.com/s/files/1/0427/4801/8855/files/differential_calculus_derivatives_of_algebraic_functions.pdf
- https://cdn.shopify.com/s/files/1/0434/0298/5622/files/4668895012.pdf
- https://cdn.shopify.com/s/files/1/0431/0922/0503/files/bidirectional_visitor_counter_project_report.pdf
- https://cdn.shopify.com/s/files/1/0449/7804/5086/files/factores_sociales_definicion_segun_autores.pdf
- https://cdn.shopify.com/s/files/1/0431/5496/4637/files/8792566331.pdf
- https://cdn.shopify.com/s/files/1/0431/7908/1894/files/ropigadujiwulo.pdf
- https://cdn.shopify.com/s/files/1/0434/0331/3315/files/fovidisusogejawegevi.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_off00007b73.bin0cf3160d129d92e07cd509ce46205399eadb8e4bb95056fb7b1bb5aa1196d58d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B73 | 5544 bytes |
font_01_sfnt_off00008e24.binc20c582dbd414626f9c99668d95802ff6617c210920f1c23402a0ceaad70779a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8E24 | 10328 bytes |
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