MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document contains embedded links that redirect to a malicious URL, likely as part of a phishing or SEO spam campaign. The document body, though heavily obfuscated, contains text suggesting it is a 'study guide' lure. The presence of numerous external links, many pointing to Shopify-hosted PDFs, indicates a link farm designed to manipulate search engine results and drive traffic to malicious redirectors like `ttraff.com`. No scripts were extracted from this sample.
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.com/pify?keyword=electrons+in+atoms+chapter+5+study+guide In PDF document text
- http://gofowi.ndcsw.org/uploads/1/3/0/7/130776873/7778961.pdfIn PDF document text
- http://files.rightdevelopmentfoundation.com/uploads/1/3/1/3/131379553/990693.pdfIn PDF document text
- http://navew.taiwanhotelnews.com/uploads/1/3/0/8/130813714/pumenixuwifo.pdfIn PDF document text
- http://files.recycledcabinetsolutions.com/uploads/1/3/0/7/130776077/luguzulelotof-jezoxedozikag.pdfIn PDF document text
- http://files.hinghamwomensclub.org/uploads/1/3/1/4/131454521/kewadinod.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/1/0429/9443/4207/files/34569388188.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8350/5570/files/17460412312.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6438/5951/files/60037525944.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4594/4481/files/bim_360_docs.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6750/6849/files/kumulavevul.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3159/3113/files/graduate_school_tu_delft_course_attendance_form.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9181/2767/files/11570153034.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/0086/2619/files/2206994813.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9101/6347/files/solving_linear_equation_worksheet.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_off0000792a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x792A | 1596 bytes |
SHA-256: 1da0b9999ef76ba268392b20ebc0eee7c2d0ba655bcc37d0311ab5d74e186c4f |
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font_01_sfnt_off00008128.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8128 | 5552 bytes |
SHA-256: c4a36549c35ed968974aa328d911e3db1b03bf9d120f0399995a0b999f3e9505 |
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font_02_sfnt_off000093d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x93D8 | 10440 bytes |
SHA-256: b686c81166f1b7a4054d20212cb4791380f3db07b0c7e41aa30e6d8b69070845 |
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font_03_sfnt_off0000b740.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB740 | 4324 bytes |
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
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