Malware Insights
The PDF file contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm or SEO poisoning tactic. One critical heuristic identified a link to a known malicious redirector infrastructure at 'ttraff.ru', which is disguised with a search query for 'latest android version 2019 phone'. This indicates a social engineering attempt to trick users into visiting a malicious site. No scripts were extracted, and the document body is heavily obfuscated, but the presence of the malicious redirector URL is the primary indicator of 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=latest+android+version+2019+phone
- http://mosogin.victoriaminks.com/uploads/1/3/0/7/130776445/siluzupezomaxole.pdf
- https://cdn.shopify.com/s/files/1/0428/5811/9334/files/598976964.pdf
- https://cdn.shopify.com/s/files/1/0434/1936/9639/files/apert_syndrome_review.pdf
- https://cdn.shopify.com/s/files/1/0428/4933/7507/files/tevafosovukotana.pdf
- https://cdn.shopify.com/s/files/1/0428/2993/8855/files/kivogabiranop.pdf
- https://cdn.shopify.com/s/files/1/0428/2905/4118/files/starbound_full_game_free.pdf
- https://cdn.shopify.com/s/files/1/0433/9191/0038/files/cardiopatias_congnitas_pediatria.pdf
- https://cdn.shopify.com/s/files/1/0439/9444/8030/files/mifugagewawebabifaxujano.pdf
- https://cdn.shopify.com/s/files/1/0429/3014/3395/files/74184372618.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vuwotowomezi.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_off000060b7.binf6f367b4e0282b626369d700a2f012db226b64a12fe1cd91de67a431523335e9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x60B7 | 5496 bytes |
font_01_sfnt_off00007366.bin8329e00fdd4f3376cba99c49d9d44df470d756cbe7f6f50b260863e0491ec8ec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7366 | 10800 bytes |
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