MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that point to a redirector service, which in turn leads to a large number of other PDF files hosted on Shopify. This behavior is indicative of a link farm, likely used for SEO manipulation or to distribute malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.
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/pify?keyword=ac+to+dc+converter+nptel+pdf
- http://files.cbsamuels.com/uploads/1/3/1/4/131438240/jufupowamisezatagos.pdf
- http://files.gso-printing.com/uploads/1/3/2/6/132682528/segeweginuwor_digizunegakav_tisogolesuli.pdf
- http://files.fortheloveofapet.com/uploads/1/3/0/7/130739835/b62c20561.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0434/3244/4056/files/joxapigebolenesifid.pdf
- https://cdn.shopify.com/s/files/1/0436/1984/4258/files/subupunumazevafaruvedozot.pdf
- https://cdn.shopify.com/s/files/1/0433/8227/6250/files/jigajozusukobigajoxusom.pdf
- https://cdn.shopify.com/s/files/1/0430/8569/3079/files/56811248495.pdf
- https://cdn.shopify.com/s/files/1/0431/4424/9499/files/70066187193.pdf
- https://cdn.shopify.com/s/files/1/0432/3409/9362/files/danegadu.pdf
- https://cdn.shopify.com/s/files/1/0428/7230/7875/files/58578354858.pdf
- https://cdn.shopify.com/s/files/1/0435/4077/5064/files/63595861785.pdf
- https://cdn.shopify.com/s/files/1/0440/3567/0166/files/zerajuledimisirejisinug.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_off000055dd.bin18399ccb42fa2837dc180d1a8c34d340d8fb6806693ed927718a4d2e55605261 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x55DD | 4552 bytes |
font_01_sfnt_off00006558.bin3193b279f5f80c13d16eaef3e55d50768ff0e3b65dc1b8815cfedb9eba2e2128 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6558 | 9576 bytes |
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