MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links, with one specifically pointing to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the target URL and appears to be a lure for 'basic english words for daily use pdf'. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous external links suggests a link farm or SEO poisoning tactic to distribute malicious content.
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=basic+english+words+for+daily+use+pdf
- http://files.kostichart.com/uploads/1/3/2/7/132740594/776827.pdf
- http://files.k8willard.com/uploads/1/3/2/7/132740352/9247039.pdf
- http://files.ellabonitastores.com/uploads/1/3/1/4/131437222/nituvawalon.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/9736/6436/files/16683425646.pdf
- https://cdn.shopify.com/s/files/1/0439/5650/2686/files/cbse_result_2020_download.pdf
- https://cdn.shopify.com/s/files/1/0432/8947/7273/files/wugapinitokuj.pdf
- https://cdn.shopify.com/s/files/1/0431/3110/9540/files/17058085886.pdf
- https://cdn.shopify.com/s/files/1/0435/6535/1071/files/58951275320.pdf
- https://cdn.shopify.com/s/files/1/0430/3034/7938/files/99106142253.pdf
- https://cdn.shopify.com/s/files/1/0436/4858/1782/files/1505047845.pdf
- https://cdn.shopify.com/s/files/1/0428/2066/5510/files/jipuzezote.pdf
- https://cdn.shopify.com/s/files/1/0434/6763/6902/files/cissp_sample_questions.pdf
- https://cdn.shopify.com/s/files/1/0430/8415/2986/files/89553413745.pdf
- https://cdn.shopify.com/s/files/1/0431/0587/8167/files/zozobininatunegaxure.pdf
- https://cdn.shopify.com/s/files/1/0435/4254/4533/files/alcoro_completo.pdf
- https://cdn.shopify.com/s/files/1/0435/6833/2959/files/risetukesogufija.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_off000059a8.binf6805350e2501c400f09f19d0bf325156730a57a67dee0a95a367d83a0f0752e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x59A8 | 5660 bytes |
font_01_sfnt_off00006cfc.bin8efa1dfd93f32f747910a49999c2bea0e9a4442cb897717c6bb26b9b7468f813 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6CFC | 9944 bytes |
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