MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains embedded links that redirect to malicious infrastructure, specifically identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though obfuscated, contains a URL that appears to be a lure for educational content. The presence of numerous external PDF links suggests a link farm or SEO manipulation tactic. No scripts were extracted, but the primary malicious function is the redirection to a harmful URL.
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=pre+algebra+pdf+workbook
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0434/0380/4839/files/61019921027.pdf
- https://cdn.shopify.com/s/files/1/0428/5346/6271/files/roduvavi.pdf
- https://cdn.shopify.com/s/files/1/0435/7573/8527/files/thumb_machine_attendance_software_free.pdf
- https://static.usrfiles.com/ugd/8e1900_0ff72e2c4769460784633f88facb8a12.pdf
- https://static.usrfiles.com/ugd/b8c837_5da0f5f08b494a7cb7f3a9d0747fe9c2.pdf
- https://static.usrfiles.com/ugd/b8c837_440114f5513f4854b313b69758118795.pdf
- https://static.usrfiles.com/ugd/3b47cb_cad43cf67e3e4cbd98c9afa65bc03b4a.pdf
- https://static.usrfiles.com/ugd/b8c837_2c131cd4cbad45bc85f6eeee93fa6c88.pdf
- https://static.usrfiles.com/ugd/b8c837_51d76e8191ad4e54acb8116c35b0e87a.pdf
- https://static.usrfiles.com/ugd/b8c837_15861b91b164477fb0af47f3fd67a988.pdf
- https://static.usrfiles.com/ugd/b8c837_b8813a76683e41758b0793fc6c1a0021.pdf
- https://static.usrfiles.com/ugd/8ab72e_b39cfd4b380a4fbca7a75c5112eeb205.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_off00004722.bin132588786ff6ff83b0ae74e8589ee5c7d0aa76f14165d4cf39c70dcedc35708d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4722 | 5328 bytes |
font_01_sfnt_off00005963.bin618e73480a8cc52562c5642f4f7e33cb1831de64a8dc7866025d3ff365ce1a76 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5963 | 10276 bytes |
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