MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a heuristic firing indicating it links to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that triggered this heuristic. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute malicious content. The primary malicious URL identified is https://ttraff.com/pify?keyword=thyristor+principle+of+operation+pdf, which likely serves as a lure to a malicious payload.
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=thyristor+principle+of+operation+pdf In PDF document text
- http://files.authenticitycoachinglondon.com/uploads/1/3/0/9/130969054/1653698.pdfIn PDF document text
- http://zidajaxon.foschia.ca/uploads/1/3/1/3/131382078/vebuzixiwos.pdfIn PDF document text
- http://files.shoprlsg.com/uploads/1/3/1/4/131483009/duzilulogegen.pdfIn PDF document text
- http://files.jvjewelers.com/uploads/1/3/0/7/130740026/5200e3cc6.pdfIn PDF document text
- http://files.howesoundwoodcrafters.com/uploads/1/3/0/7/130739480/4895937.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9484/3298/files/seluvakafapazudewisodad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8899/3699/files/202705712.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/5152/1947/files/movugiboramufojafofala.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2153/9240/files/muriatic_acid_msds.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5153/9861/files/nirujozitawebikokijufix.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3786/7687/files/first_rank_raju_full_movie_movierulz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1907/4722/files/oxford_cardiology_handbook.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4233/2057/files/bharathiyar_songs_with_meanings_in_tamil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7766/4929/files/35344893228.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6903/7980/files/the_anglo_saxon_chronicle.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8946/1410/files/34069971827.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0449/1198/4795/files/business_goals_2_cambridge.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5768/4375/files/etiologi_keratosis_seboroik.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2010/7424/files/74253721393.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000062c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62C9 | 5296 bytes |
SHA-256: 92891e012fb4b3c32269e3f15e5621fde1d02842e3972f2fe18a1e5eb33a262a |
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font_01_sfnt_off000074c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x74C4 | 9852 bytes |
SHA-256: 2dd90ce7fcf751adc324728e5ab8b899f34ebeada51085541815b4634522a998 |
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