MALICIOUS
194
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 to external PDF documents, a technique often used for SEO poisoning to manipulate search engine results. One of the initial links redirects to a known malicious domain, indicating a malicious intent to lure users to harmful content. 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/wb?keyword=pdf%20alcoholismo%20y%20drogadiccion In PDF document text
- http://files.coacadeca.org/uploads/1/3/1/3/131383720/7712470.pdfIn PDF document text
- http://files.mrsquam.com/uploads/1/3/0/7/130775987/4777150.pdfIn PDF document text
- http://files.acrossthecreekorganics.ca/uploads/1/3/1/8/131857421/f46fd9d0446a.pdfIn PDF document text
- http://files.gnowangerupcrc.net/uploads/1/3/0/8/130874224/b5faffbfe87491a.pdfIn PDF document text
- http://files.drlizamorton.com/uploads/1/3/0/7/130739459/4508821.pdfIn PDF document text
- http://files.theriver474.com/uploads/1/3/0/9/130968995/lirudupasurino.pdfIn PDF document text
- http://files.synergyfxtotalfitness.com/uploads/1/3/1/4/131453024/0f17c.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://xekavesa.files.wordpress.com/2020/07/19650988777.pdfIn PDF document text
- https://fuxopudox126630495.files.wordpress.com/2020/06/soxamotese.pdfIn PDF document text
- https://bozidaza.files.wordpress.com/2020/06/wozovufufizodubokof.pdfIn PDF document text
- https://korimatubu750764612.files.wordpress.com/2020/07/zemedozakozek.pdfIn PDF document text
- https://milinubed.files.wordpress.com/2020/07/96669559810.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7612/4821/files/13116786750.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3269/9295/files/8089257882.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57790570823.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4320/9895/files/nujoja.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4652/6376/files/furowefumonerivevitide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9736/7452/files/98159493295.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8373/3915/files/26212554893.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_off000082cc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x82CC | 5128 bytes |
SHA-256: 7041c34086fbf971564f007611585a8a9a725b3345b36e8fd5d0af7de0d67f46 |
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font_01_sfnt_off00009404.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9404 | 10048 bytes |
SHA-256: 37e6f5ce917e1f08ea03aab9d7fa5190339c97dadd9e5b524e361cf15a02bad5 |
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