MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that redirect to malicious infrastructure, specifically a URL designed to appear as a search result for a user manual. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM indicate that this PDF is part of a link farm designed to redirect users to malicious sites. 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.cc/wb?keyword=manual%20de%20usuario%20samsung%20j4%202018 In PDF document text
- http://files.sjosephpsychotherapy.com/uploads/1/3/1/3/131398221/7259308.pdfIn PDF document text
- http://files.uniquestationers.com/uploads/1/3/1/8/131856134/vexilupurajoja.pdfIn PDF document text
- http://files.gfwcsylvaniajuniors.org/uploads/1/3/2/8/132814050/a88e8e1fe3.pdfIn PDF document text
- http://laroti.havelsflowers.com/uploads/1/3/0/7/130774993/vurejevazuk-fusimosinitula-vosazejotiza.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.opentle.orgIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1509/3920/files/figijirodozavikenitonezas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8570/8968/files/48217450162.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6079/6318/files/72439773198.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/77636621448.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7318/4678/files/23698379828.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1712/6567/files/bogumabatalesote.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6636/8935/files/41487218929.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7201/1941/files/python_priority_queue.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2280/3366/files/voxesize.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/28650507632.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/0982/4152/files/xufuzobelekiluk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1899/3320/files/mijesolodavozemusubalem.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
- http://www.gnu.org/licenses/gpl.htmlIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005bae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5BAE | 5832 bytes |
SHA-256: 95fc1f2e67cab32f95a295a0a15749fc4104e0001f57fcd8208824ef0a3c75a4 |
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font_01_sfnt_off00006f7e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F7E | 6792 bytes |
SHA-256: 23bff5989b61df33442e41ad547222f4234294f54f0f189ce4a936f42214d3fe |
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font_02_sfnt_off000081a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x81A7 | 12332 bytes |
SHA-256: 690ada58ed9490b7c493c25e2b43e7e4ae8e85fc78910ccf6cd6b3a7b2424664 |
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