MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a significant number of embedded links, many pointing to Shopify domains hosting PDF files, suggesting a link farm or SEO manipulation tactic. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely the primary malicious component. The ML classifier strongly supports the malicious nature of this PDF.
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=palabras+agudas+esdrujulas+y+graves+pdf In PDF document text
- http://ripida.myturfdom.net/uploads/1/3/0/8/130874359/189018.pdfIn PDF document text
- http://files.amymcmahonbooks.com/uploads/1/3/1/3/131379384/4806603.pdfIn PDF document text
- http://files.tealiciously.co.uk/uploads/1/3/0/9/130969352/vivoj.pdfIn PDF document text
- http://files.titanwrestlinginstitute.com/uploads/1/3/1/4/131437418/direrad.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/1/0429/9125/5713/files/blitzer_intermediate_algebra_6th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3873/5512/files/42007807341.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0821/1619/files/86308039712.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0342/9535/files/9745525399.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8506/9478/files/fusionner_doc_creator.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0144/6554/files/14271518994.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7901/6349/files/financial_accounting_libby_7th_edition_solutions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1537/1932/files/ffxiv_shadowbringers_ost.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3349/3658/files/pukazes.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
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn 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_off00006da6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6DA6 | 6440 bytes |
SHA-256: 3d4760ca295192c89086870ebbac49c5a5945404ea6ab57fca452cf2db5f569a |
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font_01_sfnt_off00007d9a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D9A | 5588 bytes |
SHA-256: 6f8eaf108fbf323ab423a4da7a3358f4de3d6f4b2438991c499f26740f8ecb50 |
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font_02_sfnt_off000090b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x90B4 | 11464 bytes |
SHA-256: 51074fba73eb1f6771db0de548cdee6a6dbc018c93e18a50883d1a320be705bf |
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font_03_sfnt_off0000b62d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB62D | 16064 bytes |
SHA-256: 1398bbf2dfd9cae4409d1d8ab67a79f495e147aa07cce54436be1c2862721d78 |
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