MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, including one to a known malicious redirector, disguised as an educational worksheet. The ML classifier strongly indicated maliciousness, and the PDF structure suggests it's part of a link farm designed to drive traffic to malicious sites. While no scripts were directly extracted, the presence of embedded URLs and the heuristic firings point to a phishing or redirection scheme.
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=naming+parts+of+a+circle+worksheet
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/599f1c_4220f43adba84e609acc1f0fe8b00a3b.pdf
- https://static.usrfiles.com/ugd/5be868_04d15150c29345e8bf0620f85407140d.pdf
- https://static.usrfiles.com/ugd/7d1dc9_a81c397609e940f99c70b0a14faf7798.pdf
- https://cdn.shopify.com/s/files/1/0430/4207/8877/files/80591500886.pdf
- https://cdn.shopify.com/s/files/1/0434/7795/8816/files/76822107674.pdf
- https://cdn.shopify.com/s/files/1/0432/5644/7136/files/10962596655.pdf
- https://static.usrfiles.com/ugd/cb5dea_0871c73382e84ee59377989e342af736.pdf
- https://static.usrfiles.com/ugd/a64c8c_e0c715410faa4f959f31e4dcaa3326e6.pdf
- https://static.usrfiles.com/ugd/2c8d66_d6fa26a2f17d41ccbc41bcbaffc7c14d.pdf
- https://static.usrfiles.com/ugd/0c41e7_f991421ea0e044f2936f4f2b94551d2f.pdf
- https://static.usrfiles.com/ugd/b8c837_8b8174a0f62d4c7d876a8ac847d94138.pdf
- https://static.usrfiles.com/ugd/57c819_e9d11b0c1c9a4c37a858d3e52d1ead65.pdf
- https://static.usrfiles.com/ugd/b8c837_361361c48d774611bbb67d4743eaf568.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_off0000635e.bin30fbe9c3679c125c8c44142b637804fca1973cd64d4415932ece4d62f35799fe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x635E | 5556 bytes |
font_01_sfnt_off0000762a.bin2a1a7916a8a89fae4db07f50538780e7d8bed9231fc92d2b98132350a415670b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x762A | 10364 bytes |
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