MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains multiple embedded links, with one specifically identified as a malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms that the link https://ttraff.cc/pify?keyword=integrated+resistors+and+capacitors+in+vlsi+design+pdf leads to known malicious infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of external links, many hosted on cdn.shopify.com, suggesting a link farm designed to attract traffic. The document body, though heavily obfuscated, contains the same redirector URL and several benign-looking Shopify URLs.
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/pify?keyword=integrated+resistors+and+capacitors+in+vlsi+design+pdf In PDF document text
- http://rugulixa.nationsmidwifery.com/uploads/1/3/1/4/131407227/juxewat.pdfIn PDF document text
- http://files.ttgymnastics.com/uploads/1/3/2/7/132741334/3867813.pdfIn PDF document text
- http://files.onewireless.co.za/uploads/1/3/1/1/131163737/ec951ac8d54d.pdfIn PDF document text
- http://files.araigneearcaneservices.org/uploads/1/3/1/1/131164479/guxon.pdfIn PDF document text
- http://xubes.stlwineguy.com/uploads/1/3/1/4/131437792/xojufipebiv.pdfIn PDF document text
- http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0433/9610/4348/files/sebaxusapas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2763/5096/files/tajonilaboxufu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9280/3744/files/41101337748.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3899/7669/files/54222235266.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0408/2851/files/visedufita.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4337/2699/files/46807797210.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8870/6717/files/vovelaxedenamivejekirazif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1817/4107/files/basidiomycota_caracteristicas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1730/4226/files/nunopirewibofudep.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2329/2822/files/nuwebubifepi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2881/4741/files/zozaxatokatuxukexu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/1947/4856/files/kazuo_inamori_libros.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2204/7638/files/28198358580.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00008def.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8DEF | 1788 bytes |
SHA-256: 65e4ee343e60e75e677306a9ec97339d9078ee5382c4529978aa0bc8550f5df7 |
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font_01_sfnt_off00009677.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9677 | 5108 bytes |
SHA-256: e88d14c4cb7242f6258d0c9aa267821942517c40fd5f846e2355488aee72a531 |
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font_02_sfnt_off0000a7e2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA7E2 | 10240 bytes |
SHA-256: 80d160a9172cedd823d6313db304add9abd5bdd136290b70f90d2a940f51cdf6 |
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font_03_sfnt_off0000cade.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCADE | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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