MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many hosted on Shopify, likely to obscure the malicious redirector. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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/pify?keyword=bearing+types+and+sizes+chart+pdf In PDF document text
- http://files.bigkidcollector.com/uploads/1/3/1/6/131637853/1678706.pdfIn PDF document text
- http://sumiwax.ashdownsafetytraining.com/uploads/1/3/0/7/130739664/2290191.pdfIn PDF document text
- http://files.hmclaughlinkolb.com/uploads/1/3/1/4/131453268/de632a02d69b.pdfIn PDF document text
- http://files.srisaiinfotechsolutions.com/uploads/1/3/0/8/130813536/9154222.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0435/3330/3976/files/jaduwibeb.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8316/0995/files/jodusixamapowozuwoxetipo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9043/5495/files/pesozedavasixajezavase.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1442/2677/files/gebawuragunefisun.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5918/2745/files/the_ultimate_guide_to_divination.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7645/9422/files/werag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9531/7927/files/access_consciousness_bars_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85583151980.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58014629257.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7550/2234/files/wokubomawovabaji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7360/0678/files/75250173632.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6761/3087/files/construction_and_working_of_cfl_lamp.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000069b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x69B8 | 5264 bytes |
SHA-256: 4ea38d2891d58373f3f09873f1d3d47f25330dceee59d2c2c64d9660013c4df6 |
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font_01_sfnt_off00007ba7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7BA7 | 10396 bytes |
SHA-256: 18f5305daf5ff5849c94a12074bbe5b956d097833d300865b8820e0a34a2c8e3 |
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font_02_sfnt_off00009f30.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9F30 | 4324 bytes |
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
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