MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a deceptive document body and multiple embedded URLs, including one identified as a malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates that the primary URL leads to known malicious infrastructure. The PDF_SEO_LINK_FARM heuristic suggests the document is part of a larger link farm designed to attract users searching for specific content, in this case, educational materials.
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=english+file+intermediate+third+edition+student%2527s+book+pdf+free+download
- https://cdn.shopify.com/s/files/1/0429/8860/1503/files/serupazapemonuxebum.pdf
- https://cdn.shopify.com/s/files/1/0430/1602/8309/files/1743899743.pdf
- https://cdn.shopify.com/s/files/1/0431/1059/6765/files/28404438984.pdf
- https://cdn.shopify.com/s/files/1/0436/2164/6498/files/audience_report_adwords.pdf
- https://cdn.shopify.com/s/files/1/0429/1490/6275/files/bider.pdf
- https://cdn.shopify.com/s/files/1/0433/5032/7454/files/62077706201.pdf
- https://cdn.shopify.com/s/files/1/0436/9865/1288/files/my_cdr_file_converter.pdf
- https://cdn.shopify.com/s/files/1/0431/1197/3026/files/16653765653.pdf
- https://static.usrfiles.com/ugd/b8c837_02fdf7ef2b034ecda35f0a51f9c8da88.pdf
- https://static.usrfiles.com/ugd/74c34a_934b408ffe7c4cad8955f1956327037e.pdf
- https://static.usrfiles.com/ugd/badafb_9dc36604d3cf4fe1836f8937811571ba.pdf
- https://static.usrfiles.com/ugd/b8c837_7a632ee9836d48e6bec1a7a2dcf40888.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_off00005ae0.binf1835e4584125c30768d7f5f7ef734c9e9d954787cbc7a8e21c96758bc2ae65e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5AE0 | 5744 bytes |
font_01_sfnt_off00006e47.bin99d136bf0e801dcaa7ab0a6bc47de894d3356fba8dafe4a55219c8e97152f1d4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E47 | 9876 bytes |
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