MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many pointing to Shopify domains hosting other PDFs, and one critical link to a known malicious redirector. This indicates a link farm or SEO poisoning attack designed to drive traffic to malicious infrastructure. The ML classifier strongly supports the malicious nature of this PDF.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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=evangelios+apocrifos+de+la+biblia+pdf In PDF document text
- http://files.windwardtoeden.com/uploads/1/3/0/7/130740252/xotonozovagoxi_wewenitetesez_rawerifumibolu_zibowujebazerof.pdfIn PDF document text
- http://tivoz.riggsaroo.com/uploads/1/3/1/0/131070450/4178522.pdfIn PDF document text
- http://files.khrystaljcounseling.com/uploads/1/3/1/4/131406535/3894a5d101.pdfIn PDF document text
- http://tamakupef.thewhitefamilyreunionisaiahcarrie.com/uploads/1/3/0/7/130775432/jirogak.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6819/4978/files/36482847380.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0797/5335/files/xaromosunifegaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fakuwonilojovaxibudebu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2029/5064/files/belojagar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0608/2717/files/duguwejuf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/7232/9630/files/sesame_street_sesame_sings_karaoke.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0688/6051/files/24478710771.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2017/2957/files/shapeshift_time_remaining_expired.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3105/1931/files/80695595771.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6978/3720/files/kodixotosinabox.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/1247/8360/files/segomi.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000876d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x876D | 5480 bytes |
SHA-256: d6f9862272d403ad3efc27642ce1c6e92ebf29acbac9a37c41a829dd6308f506 |
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font_01_sfnt_off00009a25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9A25 | 11184 bytes |
SHA-256: ee48d78bac8c9db53aee07d9ead0b04645f09a0fa4776a3d1be5c6623c1a7c45 |
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