MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links designed to appear as legitimate downloads but redirect to a malicious domain, identified as a redirector. The ML classifier strongly indicated maliciousness, and the PDF structure suggests a link farm for SEO manipulation, likely to phish users. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.
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/wb?keyword=interrupts%20in%20embedded%20systems%20pdf In PDF document text
- http://files.pretzelathletics.com/uploads/1/3/0/7/130776341/d8979a7.pdfIn PDF document text
- http://files.artemleaders.com/uploads/1/3/0/8/130815437/56e41c74761eb59.pdfIn PDF document text
- http://files.masonscience8.com/uploads/1/3/2/7/132712530/vanupiva.pdfIn PDF document text
- http://files.hempourfuture.com/uploads/1/3/1/3/131398574/kitukotevudosuman.pdfIn PDF document text
- http://files.markmarinozzi.com/uploads/1/3/1/4/131454172/2f26df15e8.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4317/6091/files/5024360099.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3551/7337/files/46724904675.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4047/2214/files/wijitawolinasujo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3015/1330/files/91530525604.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7861/5189/files/vebakowibefos.pdfIn PDF document text
- https://jajedivetet.files.wordpress.com/2020/07/15534254629.pdfIn PDF document text
- https://kogezes.files.wordpress.com/2020/06/zulesupusokekasimizez.pdfIn PDF document text
- https://batateja.files.wordpress.com/2020/06/1570310605.pdfIn PDF document text
- https://roropebuj.files.wordpress.com/2020/06/daragafilegajorom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2359/6693/files/19491986521.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7729/6543/files/telokelovosi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6285/3794/files/24367164382.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4899/2930/files/83847838063.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/43778875991.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3529/5905/files/10406898395.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kefemomorevogik.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2763/5096/files/29472661952.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007ac2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7AC2 | 4896 bytes |
SHA-256: fd45fd5d5b656fb92dbfa4758342ce92f9fe9ab76aa877d7d1f82934e6aa5f69 |
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font_01_sfnt_off00008b41.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8B41 | 15080 bytes |
SHA-256: 653ca6dc1ab56e7c6bec9eb143ac219f670a65b765d02aaab4b6a94dcc5a4ae2 |
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