MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. The ML classifier strongly indicates maliciousness. The document appears to be a SEO spam PDF designed to lure users to a malicious site via the embedded link, disguised as a document about catecholamines. The presence of numerous Shopify links, while many are benign, suggests a link farm tactic.
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.link/wix?keyword=catecolaminas+adrenalina+y+noradrenalina+pdf
- https://cdn.shopify.com/s/files/1/0440/8688/6552/files/31153984245.pdf
- https://cdn.shopify.com/s/files/1/0434/3745/7575/files/dufime.pdf
- https://cdn.shopify.com/s/files/1/0430/4571/6129/files/wosaluwixakejug.pdf
- https://cdn.shopify.com/s/files/1/0431/6309/1112/files/ganawodelamodebo.pdf
- https://cdn.shopify.com/s/files/1/0461/9688/3614/files/diagnostico_de_enfermagem_nanda_para_anemia_falciforme.pdf
- https://cdn.shopify.com/s/files/1/0430/2585/8723/files/vigozareso.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12086745869.pdf
- https://cdn.shopify.com/s/files/1/0435/0846/5828/files/85936576750.pdf
- https://cdn.shopify.com/s/files/1/0433/2113/1161/files/toloxan.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nujogopuju.pdf
- https://static.usrfiles.com/ugd/9dda13_40ec93f3c573499095b6b5fa840e2b74.pdf
- https://static.usrfiles.com/ugd/1813b3_3e7e650b5b78406bb24a14d4f45c446d.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_off00008bb6.binca06eb71db6d152f87f37a801b1ed582a5b7b28418eaa7c7aa37c22a77bb31d7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8BB6 | 5308 bytes |
font_01_sfnt_off00009db2.bin02411a9098198505a2f5201ae3f1e1ce9ff10ff0ac5b47ac1e17e490c13d6a58 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9DB2 | 10768 bytes |
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