MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link that redirects to known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to 'isotopes and making atoms worksheet answer key' and the malicious URL itself, suggesting a lure. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, many pointing to Shopify domains, which is a common tactic for distributing malicious PDFs. The ML_NYX_PDF_MALICIOUS heuristic further supports the malicious classification.
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/wix?keyword=isotopes+and+making+atoms+worksheet+answer+key
- https://static.usrfiles.com/ugd/b8c837_596eac91c3754e41a552bd17dde78c53.pdf
- https://static.usrfiles.com/ugd/a31856_7f1a3bd2b2984c4b8b57cce056291ba5.pdf
- https://static.usrfiles.com/ugd/a838c0_d606b707e4724a09a89651bfe63db400.pdf
- https://static.usrfiles.com/ugd/105a8c_03c41cd6b4474bc98964a7c5eacb01a5.pdf
- https://cdn.shopify.com/s/files/1/0439/2471/7723/files/nusidivokelulafetefuz.pdf
- https://cdn.shopify.com/s/files/1/0432/7807/4020/files/83893220386.pdf
- https://cdn.shopify.com/s/files/1/0430/4296/3613/files/41436704466.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/70339383958.pdf
- https://cdn.shopify.com/s/files/1/0429/2499/8819/files/natakuxamejusulovadidomuz.pdf
- https://cdn.shopify.com/s/files/1/0428/1031/0822/files/7116799219.pdf
- https://cdn.shopify.com/s/files/1/0429/8863/4263/files/xakan.pdf
- https://cdn.shopify.com/s/files/1/0427/4978/8327/files/pefenopasuzu.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nimapudusakodinufuzexive.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_off0000b269.bin65bfe3addd402b202895dc92bf091d57256aed2245d03a0da18b9066cf9c2e6e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB269 | 5536 bytes |
font_01_sfnt_off0000c52f.bin21fbe7a0bc6fc81c1b1f371f65dc015eb4a808346e623f5550beb1178c56658b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC52F | 10264 bytes |
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