MALICIOUS
234
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, many of which point to a link farm hosted on Shopify. One critical heuristic indicates that the PDF links to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL that is also flagged by the critical heuristic, suggesting a lure to a malicious site.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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=behen+hogi+teri+song++pk In PDF document text
- http://xuled.comprehensivewellnesssolutions.com/uploads/1/3/1/4/131413418/rovivatipazi-botugisuda-pijuput-lipajojudowu.pdfIn PDF document text
- http://files.jenniferocook.com/uploads/1/3/1/3/131398406/4742100.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/1/0441/4432/8856/files/gabawazulanitevosixi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/5985/3977/files/fewazimonuritediti.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2843/8427/files/virefozasibedike.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5199/9637/files/mepodufotifowuxenube.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0155/1771/files/73986985256.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6713/0534/files/78359919632.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6297/6921/files/blank_coordinate_plane.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4017/7317/files/46740314715.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3127/3370/files/military_college_jhelum_past_papers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8678/2369/files/87281784975.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007f4c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F4C | 4740 bytes |
SHA-256: 97643cb5a438b31a0a4ee0c34583e206df6d200fb8bef06e9d63330fb2e6eca4 |
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font_01_sfnt_off00008f61.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8F61 | 14428 bytes |
SHA-256: dc69f32c72f69b08589f060da716839958c32bea708403845cfa25ea867d8f98 |
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font_02_sfnt_off0000bcb8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBCB8 | 16204 bytes |
SHA-256: a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd |
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font_03_sfnt_off0000d1e5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1E5 | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
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