MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link to a redirector service, which in turn points to a large number of PDF files hosted on Shopify and other domains. This suggests a link farm or SEO manipulation tactic to drive traffic to potentially malicious content. The ML classifier also strongly indicated maliciousness, and the presence of embedded links points to a spearphishing attachment attempt.
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/pify?keyword=sherris+medical+microbiology+pdf+free+download
- http://files.simple69.ca/uploads/1/3/1/4/131437680/xopakiwi_zolumapojinojod.pdf
- http://jexenat.dorothyphillips.net/uploads/1/3/1/4/131482995/tasawife-pikaso.pdf
- http://tatakafu.gulfislands.ca/uploads/1/3/1/4/131438572/jizesufe-mubuzimela-zibilinunoxob-bedinir.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0435/6525/2771/files/76679836503.pdf
- https://cdn.shopify.com/s/files/1/0430/8893/7120/files/ruxamofe.pdf
- https://cdn.shopify.com/s/files/1/0436/0408/2851/files/nigupuvu.pdf
- https://cdn.shopify.com/s/files/1/0429/5000/0791/files/manubawaruvisusugupez.pdf
- https://cdn.shopify.com/s/files/1/0430/2848/0157/files/jexuwix.pdf
- https://cdn.shopify.com/s/files/1/0434/3404/9703/files/gusozetoroxuf.pdf
- https://cdn.shopify.com/s/files/1/0428/9875/1641/files/82678975120.pdf
- https://cdn.shopify.com/s/files/1/0432/2672/6568/files/cadena_de_valor_virtual.pdf
- https://cdn.shopify.com/s/files/1/0433/0097/8853/files/pdf_to_word_document_converter_free_online.pdf
- https://cdn.shopify.com/s/files/1/0430/8343/2096/files/mumeduju.pdf
- https://cdn.shopify.com/s/files/1/0431/1298/8821/files/vanarigidovukoxudaj.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_off0000494e.bin3ffdb40f07d24c9c7d011697a64de75a7e2d0243c9f5aafcec734583987cd4fd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x494E | 6008 bytes |
font_01_sfnt_off00005d9f.binecfa17beafb51202b46eb15bed7613c86e3c30ffa6139ec36f112c0cf1daee9a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D9F | 9344 bytes |
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