MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm or SEO manipulation tactic. One of the primary links directs to a known malicious redirector, indicating a phishing or malware distribution attempt. The ML classifier strongly flagged this PDF as malicious.
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.com/pify?keyword=new+cg+song+2018+free
- http://files.nb-resources.org/uploads/1/3/0/9/130969190/15da1e7c8aa3.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/3792/5269/files/bra_size_chart_with_pictures.pdf
- https://cdn.shopify.com/s/files/1/0432/6224/7067/files/gaxuted.pdf
- https://cdn.shopify.com/s/files/1/0434/0521/3847/files/pedanaxabisiwiliverom.pdf
- https://cdn.shopify.com/s/files/1/0429/7759/1449/files/hungerford_algebra.pdf
- https://cdn.shopify.com/s/files/1/0431/1118/6585/files/constructing_bar_graphs_worksheets.pdf
- https://cdn.shopify.com/s/files/1/0453/3682/1915/files/job_application_letter_for_accountant_post.pdf
- https://cdn.shopify.com/s/files/1/0435/9749/6488/files/cambridge_primary_english_stage_5_teacher_s_resource.pdf
- https://cdn.shopify.com/s/files/1/0431/6705/6028/files/13763417325.pdf
- https://cdn.shopify.com/s/files/1/0432/1991/0811/files/30994830018.pdf
- https://cdn.shopify.com/s/files/1/0437/0972/6888/files/zadimepixamepawirigu.pdf
- https://cdn.shopify.com/s/files/1/0434/7723/7920/files/jerib.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_off00004226.binfe0e711deb722b10023b6a6135438014479aefd586d346cd84058ce715147554 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4226 | 5388 bytes |
font_01_sfnt_off000054b6.bina86f2bd771329141171231617d35624a9e40f82dfb070839ba4cb903ad9b1b9b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x54B6 | 9636 bytes |
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