MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, including one pointing to known malicious redirector infrastructure. The document body, though heavily obfuscated, appears to be a lure related to educational exercises, aiming to trick users into clicking the malicious link. The ML classifier strongly indicates malicious intent.
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/wix?keyword=ejercicios+de+operaciones+combinadas+secundaria
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/b8c837_ad64b139ef814e4697fa16b5cca6eaac.pdf
- https://static.usrfiles.com/ugd/b8c837_cee14021b15d486f9ed32e7362f66a60.pdf
- https://static.usrfiles.com/ugd/b8c837_d33253fdaf18415091ede50dcd5b0372.pdf
- https://static.usrfiles.com/ugd/b8c837_8c369762975a41ddad84b8131cc23851.pdf
- https://static.usrfiles.com/ugd/b8c837_2a5aa4b91117444d966558782b815cbe.pdf
- https://cdn.shopify.com/s/files/1/0434/5469/3529/files/drag_queen_new_orleans.pdf
- https://cdn.shopify.com/s/files/1/0428/0667/3574/files/pixel_gun_hack_no_survey.pdf
- https://cdn.shopify.com/s/files/1/0433/1533/1227/files/17502299734.pdf
- https://cdn.shopify.com/s/files/1/0440/9013/0584/files/evolucion_del_cerebro_humano_a_traves_del_tiempo.pdf
- https://static.usrfiles.com/ugd/b8c837_dd2eee70ff68435f8f69e24793e08da0.pdf
- https://static.usrfiles.com/ugd/b8c837_50fb5fd106654119a8fcc2913c9d35d5.pdf
- https://static.usrfiles.com/ugd/b8c837_be72e937c562439a986832a6616e0d42.pdf
- https://static.usrfiles.com/ugd/b8c837_46e0c58e1bab46e691f51630ab7c73a6.pdf
- https://static.usrfiles.com/ugd/b8c837_6741f90b353c4d09a2050c093fafc4bf.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_off0000631e.bin37b2f7498686f0a42fa1d3a3f1a11d0057e70cf4532dfd0fab74f16469f5d0b2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x631E | 5360 bytes |
font_01_sfnt_off00007533.bin42c538c33ba8b0f8efd21376aa40706adf271dd535c94bca898269ca2df29e15 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7533 | 14428 bytes |
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