MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to external resources, including a known malicious redirector. The document body is obfuscated but contains references to 'jazz guitar beginner book pdf' and a malicious URL, suggesting a lure for users to download potentially harmful content. The ML classifier also strongly indicated maliciousness.
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.cc/pify?keyword=jazz+guitar+beginner+book+pdf
- http://files.southwestturfsupply.com/uploads/1/3/2/6/132681783/caa0ce26da57.pdf
- http://files.nationalchildrensdayuk.com/uploads/1/3/1/3/131382841/8016114.pdf
- http://files.nestampede.com/uploads/1/3/1/6/131606486/b11d7e7833efe65.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0429/5639/0551/files/59417712916.pdf
- https://cdn.shopify.com/s/files/1/0437/5235/8042/files/rererivudirobadomose.pdf
- https://cdn.shopify.com/s/files/1/0430/5456/3477/files/piwufajoropafokerakud.pdf
- https://cdn.shopify.com/s/files/1/0439/2484/8795/files/9687515175.pdf
- https://cdn.shopify.com/s/files/1/0433/4498/6280/files/11009411356.pdf
- https://cdn.shopify.com/s/files/1/0447/8458/2813/files/livros_de_magia_cabalistica.pdf
- https://cdn.shopify.com/s/files/1/0432/2597/2904/files/purexa.pdf
- https://cdn.shopify.com/s/files/1/0437/2407/9254/files/99140077781.pdf
- https://cdn.shopify.com/s/files/1/0429/1202/2691/files/taxurinukonen.pdf
- https://cdn.shopify.com/s/files/1/0435/9726/7112/files/19231125880.pdf
- https://cdn.shopify.com/s/files/1/0439/3166/4552/files/vapuvome.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_off0000658b.bin225a818775c4846574d47f54501848eec2fe54f527312e8042a38bd394338106 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x658B | 5240 bytes |
font_01_sfnt_off0000777d.bin162f51c34afac1353743d4a521c784264e42f1acdda1d96b1c4e651d1d8ea5d3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x777D | 10752 bytes |
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