MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1200 Hardware Add-in
T1059.001 PowerShell
The PDF contains numerous embedded links, a common tactic for SEO link farms and redirector abuse. One such link, https://ttraff.com/wb?keyword=valence%20electrons%20worksheet%20answers%20instructional%20fair, points to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains references to the redirector URL and other Shopify-hosted PDFs, suggesting a lure to external 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.com/wb?keyword=valence%20electrons%20worksheet%20answers%20instructional%20fair
- http://files.legalandcommercial.com/uploads/1/3/1/1/131164358/86f8c4b15c2d.pdf
- http://files.lightonplaza.com/uploads/1/3/0/8/130814769/3236107f1a.pdf
- http://files.elitegolfcartrentals.com/uploads/1/3/1/4/131438759/796446.pdf
- https://cdn.shopify.com/s/files/1/0432/1394/7041/files/statistical_methods_by_n._g._das_free_download.pdf
- https://cdn.shopify.com/s/files/1/0430/1075/2663/files/zanemuk.pdf
- https://cdn.shopify.com/s/files/1/0433/9056/6556/files/ofice_home_and_student_2007.pdf
- https://cdn.shopify.com/s/files/1/0432/5795/4464/files/ankilostomiasis_adalah.pdf
- https://cdn.shopify.com/s/files/1/0431/6997/2392/files/alexis_de_tocqueville_biography.pdf
- https://cdn.shopify.com/s/files/1/0445/9918/1476/files/bible_niv_download_free.pdf
- https://cdn.shopify.com/s/files/1/0433/0268/2789/files/sajefe.pdf
- https://cdn.shopify.com/s/files/1/0434/0655/7341/files/wotas.pdf
- https://cdn.shopify.com/s/files/1/0429/6101/0842/files/4631319118.pdf
- https://cdn.shopify.com/s/files/1/0440/3052/5590/files/fojifotaw.pdf
- https://cdn.shopify.com/s/files/1/0447/8219/0749/files/file_police_report_online_san_francisco_ca.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_off0000ac39.bin326b9b6454b2e537e344ba8247e87a408fbae8d70c67be3c4812cba0bd1ab87a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAC39 | 5088 bytes |
font_01_sfnt_off0000bd9a.bin30088ddd19451f635e774985e51eeb11e3b1da3287a5d0027c4a1bf0a2ba76bd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD9A | 14300 bytes |
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