MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, with the primary heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, appears to be related to health information, likely serving as a lure. The ML classifier strongly indicates maliciousness, supporting the attack pattern of redirecting users to malicious sites.
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=reliable+and+unreliable+sources+of+health+information
- http://files.anthonylaurienti.com/uploads/1/3/1/1/131163492/repusomadufapu.pdf
- http://files.vancouvervolleyballleague.com/uploads/1/3/0/7/130739472/6944019.pdf
- http://files.littlefeatherfoundation.com/uploads/1/3/1/4/131407918/xanijeselipepaveli.pdf
- http://files.trailsidecountrystore.com/uploads/1/3/1/3/131383973/d6074dd10d8c88e.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0429/0763/1782/files/73669189541.pdf
- https://cdn.shopify.com/s/files/1/0431/0269/9681/files/xixepabujuxokugupevuvexaz.pdf
- https://cdn.shopify.com/s/files/1/0431/8186/7176/files/64243265518.pdf
- https://cdn.shopify.com/s/files/1/0430/7386/3842/files/fedisakunut.pdf
- https://cdn.shopify.com/s/files/1/0431/2619/4336/files/25410997099.pdf
- https://cdn.shopify.com/s/files/1/0433/9246/7109/files/38626266298.pdf
- https://cdn.shopify.com/s/files/1/0429/3178/1791/files/jibekuzitamo.pdf
- https://cdn.shopify.com/s/files/1/0430/8870/7738/files/veponazemepodetomajub.pdf
- https://cdn.shopify.com/s/files/1/0431/5955/2155/files/36593604046.pdf
- https://cdn.shopify.com/s/files/1/0432/1076/8546/files/11725565071.pdf
- https://cdn.shopify.com/s/files/1/0428/2885/7503/files/36724396325.pdf
- https://cdn.shopify.com/s/files/1/0427/8065/5775/files/vekunerubusa.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_off000081bb.bin13ce56def648cb9b587b0a49a2439b7502fd12cad8200d897b180ba6d5629c2c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x81BB | 5288 bytes |
font_01_sfnt_off00009381.bin62d3fcd17679836bb1a126a6db15b9f45b1b909350bcd631e1ba9943eee1fedf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9381 | 10564 bytes |
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