MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a prominent link that redirects to a malicious URL, disguised as an answer key for a course. This link is identified as a known malicious redirector. The document body and embedded URLs suggest a social engineering lure to trick users into visiting the malicious site. 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/wix?keyword=core+connections+course+2+answer+key+chapter+6
- https://cdn.shopify.com/s/files/1/0448/0113/0645/files/xetitedusitogoson.pdf
- https://cdn.shopify.com/s/files/1/0431/6053/5196/files/xenalexovuxunuvedeb.pdf
- https://cdn.shopify.com/s/files/1/0428/2325/4179/files/daxufuwaxexobosizame.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/5552762143.pdf
- https://cdn.shopify.com/s/files/1/0428/6860/5095/files/abbyy_transformer_12._0_serial_number.pdf
- https://static.usrfiles.com/ugd/b8c837_9ed621cae4ff4374b95ba5c56f3b0acf.pdf
- https://static.usrfiles.com/ugd/b8c837_9085eb928c9c44b3b5174bc94bdc67f2.pdf
- https://static.usrfiles.com/ugd/b8c837_022ee43f2371415abf797dadcf72075d.pdf
- https://static.usrfiles.com/ugd/b8c837_382089968a264baaba5a155b3e37488c.pdf
- https://static.usrfiles.com/ugd/b8c837_22813a1d775f470e99dea0f87da2c60b.pdf
- https://static.usrfiles.com/ugd/b8c837_2416ac1a9c6341dfa49e44188597864c.pdf
- https://static.usrfiles.com/ugd/b8c837_10972bc023f3423fa877927d8c2d2a12.pdf
- https://static.usrfiles.com/ugd/b8c837_9c3e2f2a95d940db8ed555f50910c1d8.pdf
- https://static.usrfiles.com/ugd/b8c837_841a276aa1df44f2a5fb74083887c82a.pdf
- https://static.usrfiles.com/ugd/b8c837_97c468cfd3ee45e4b0c3034c15c84f8b.pdf
- https://static.usrfiles.com/ugd/b8c837_71bf347a23e549af87e1aa222d67113b.pdf
- https://static.usrfiles.com/ugd/b8c837_439cb3377941494f903a4dad124ae329.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_off000061b4.bin18e9bd577b0fafcd95fed1de5b1de9f3ee2249b84538d123c80d87b5133c1e07 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61B4 | 5440 bytes |
font_01_sfnt_off00007445.bind3686bb93427ad0303a4cd8d5e47d55a640e34c28811c010d95bdbfc6379f65a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7445 | 10848 bytes |
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