MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link to a known malicious redirector, ttraff.ru, which is disguised as a resource for 'compare and contrast transition words'. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and the ML classifier strongly indicate malicious intent. The document body, though heavily obfuscated, contains the malicious URL and other PDF links, suggesting a link farm 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.ru/wix?keyword=compare+and+contrast+transition+words+pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/b8c837_6b480f452f2348129ee35258f6be9910.pdf
- https://static.usrfiles.com/ugd/b8c837_8e52b85748f1468db76280c43edec44d.pdf
- https://static.usrfiles.com/ugd/ea5d7b_071b9a69dff64b78a690b2cfefba160c.pdf
- https://static.usrfiles.com/ugd/b8c837_a7318f5f86d74ce6b90b071dcefc3fb6.pdf
- https://static.usrfiles.com/ugd/39cb9d_94656317b3d64a1b819b8e860ebdc46b.pdf
- https://cdn.shopify.com/s/files/1/0429/5789/7882/files/ark_kill_command.pdf
- https://cdn.shopify.com/s/files/1/0433/3197/7370/files/xejadapu.pdf
- https://cdn.shopify.com/s/files/1/0430/4830/4797/files/sakararifuzusafumupof.pdf
- https://static.usrfiles.com/ugd/e32576_a42a950c934f48dcaed136ac5ffbc12a.pdf
- https://static.usrfiles.com/ugd/ea2f88_2794c9cfda8e47589a6821b91d0b7067.pdf
- https://static.usrfiles.com/ugd/9dda13_1403dc0677ad42d98bd853ef1bdd5b5e.pdf
- https://static.usrfiles.com/ugd/57c819_00afbe3590fa475d8799e8993079aaca.pdf
- https://static.usrfiles.com/ugd/822ecd_5a86d5b651bf4f8eb5a823f917fb63b2.pdf
- https://cdn.shopify.com/s/files/1/0431/5856/9115/files/28409709700.pdf
- https://cdn.shopify.com/s/files/1/0438/9172/0347/files/conceptual_physical_science_5th_edition.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_off00006990.binb45c057d5c38a35ea4648cc14bd751c31b7209643ab0c4f9f7b2113ce2d8890b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6990 | 5268 bytes |
font_01_sfnt_off00007b6c.bin244376932c23a7f4cd3ae4348d6c67f5370e8530875db843fe5eb47abb0b1403 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B6C | 10076 bytes |
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