MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document body, though obfuscated, also contains this redirector URL, suggesting an attempt to lure users to a malicious site under the guise of providing educational material. The ML classifier strongly indicates maliciousness, and the presence of a link farm heuristic further supports a malicious intent.
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/wb?keyword=trigonometry%20identities%20grade%2011%20pdf In PDF document text
- http://bagarifi.zenyasastudio.com/uploads/1/3/1/3/131379246/zivemukiwideka-vurubifuteb.pdfIn PDF document text
- http://files.youthultimateprogram.org/uploads/1/3/1/3/131381374/529872d4413270a.pdfIn PDF document text
- http://mamop.evelinemariasmith.com/uploads/1/3/2/7/132740285/70b7d70344f80c7.pdfIn PDF document text
- http://files.martin-watzinger.com/uploads/1/3/2/7/132740278/8825786.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/1/0428/9835/8432/files/34530012154.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0446/5518/1987/files/sample_motivation_letter_for_scholarship_application.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8792/1313/files/21903202953.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4392/1820/files/formato_de_certificado_medico_escolar_dif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5900/9943/files/barcode_examples.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4802/4741/files/english_test_for_grade_7_with_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5969/9109/files/491942095.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/1682/0648/files/12823462705.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9541/7237/files/wavapikesukoxanuwi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/3220/4696/files/farolibulezumizopop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0981/0343/files/64734213386.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1970/6269/files/tetivipukokafejovuxokej.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004b55.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4B55 | 5220 bytes |
SHA-256: 5d16b625554195438076d47e20dd534492284cda68a0a4547d8a2ff1e5e76980 |
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font_01_sfnt_off00005d06.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D06 | 9984 bytes |
SHA-256: eee4adcf18ed98ce349d4fb38b73fb9ecc6e48b9d3091bb91f58549d3e79593f |
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font_02_sfnt_off00007f08.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F08 | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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