MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.ru'. This suggests a phishing or malware distribution attempt, using a seemingly educational topic ('Saxon math 1st grade workbook') as a lure. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that the embedded links are intended to lead the user to harmful 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.ru/wix?keyword=saxon+math+1st+grade+workbook
- https://cdn.shopify.com/s/files/1/0435/2881/4760/files/serif_phot_plus.pdf
- https://cdn.shopify.com/s/files/1/0434/6196/8025/files/kernel_task_high_cpu.pdf
- https://cdn.shopify.com/s/files/1/0435/4487/1080/files/letuxifir.pdf
- https://cdn.shopify.com/s/files/1/0454/2916/2152/files/masomaz.pdf
- https://cdn.shopify.com/s/files/1/0456/4448/0679/files/tojuzutazugav.pdf
- https://cdn.shopify.com/s/files/1/0430/9365/5716/files/bibtex_examplelatex.pdf
- https://cdn.shopify.com/s/files/1/0431/2884/8538/files/65810522513.pdf
- https://cdn.shopify.com/s/files/1/0430/0029/9683/files/mozilla_firefox_50._1.pdf
- https://cdn.shopify.com/s/files/1/0431/0820/4706/files/fadezidepixameleka.pdf
- https://cdn.shopify.com/s/files/1/0437/1732/9064/files/stevie_ray_vaughan_autopsy.pdf
- https://cdn.shopify.com/s/files/1/0433/5101/5577/files/39702323223.pdf
- https://cdn.shopify.com/s/files/1/0440/2846/1206/files/chaucerian_verse_form.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/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000811d.bindb80ce5bcbcacc4b46eea19839255f0cf82385ab08f1efefa0294b041bce282c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x811D | 5728 bytes |
font_01_sfnt_off0000947a.bin711ec6becf4428ec860063948f4f44cd9aeda183faa7b4ea661dc2c1e5d046ce |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x947A | 10580 bytes |
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