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 a known malicious redirector infrastructure at 'ttraff.cc'. The document body, though heavily obfuscated, suggests a lure related to a 'free PDF download'. The presence of many external PDF links indicates a link farm strategy, likely to improve search engine ranking for malicious content or to distribute further payloads.
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=aula+internacional+1+nueva+edicion+libro+del+profesor+pdf+gratis
- http://files.snohomishvalleyicerink.com/uploads/1/3/1/4/131454090/1893275.pdf
- http://files.tomitago.com/uploads/1/3/1/3/131398091/82a07153.pdf
- http://files.bayorchestra.com/uploads/1/3/1/0/131070212/wibakajezijo-jidovezeg.pdf
- http://files.lisamaki.blog/uploads/1/3/0/7/130776518/955749.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/7917/2257/files/81212779175.pdf
- https://cdn.shopify.com/s/files/1/0430/6799/8362/files/temavisivomikabasibo.pdf
- https://cdn.shopify.com/s/files/1/0436/1574/8253/files/nakepawuvisawavopozarupux.pdf
- https://cdn.shopify.com/s/files/1/0433/2178/6521/files/wavajodo.pdf
- https://cdn.shopify.com/s/files/1/0434/2808/5912/files/kifuropoduwib.pdf
- https://cdn.shopify.com/s/files/1/0435/7187/1912/files/74951974101.pdf
- https://cdn.shopify.com/s/files/1/0431/6495/8879/files/lupudifogovugudigejaper.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xomuburisuxenogiduta.pdf
- https://cdn.shopify.com/s/files/1/0430/1560/2337/files/5606956265.pdf
- https://cdn.shopify.com/s/files/1/0434/3431/1845/files/91799205644.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_off00005a9f.bin450700abc4121ac9d908c293b99a6ad9f76932fde37eb90147711069211541e4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A9F | 5444 bytes |
font_01_sfnt_off00006d33.bin5e154ed37a38ade4d58e7e6362b6818f931ececfcbaae967e35bb0b82b11cc0c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D33 | 10440 bytes |
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