MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that redirect to a malicious domain, identified as a redirector for SEO link farms. The document body, though partially corrupted, contains text suggesting it is an educational resource, likely a lure to encourage clicks. The ML classifier strongly indicated maliciousness, and the presence of redirector links points to a phishing or scam attempt.
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=aprendizajes+clave+sexto+grado+primaria+pdf In PDF document text
- http://files.morganephotos.com/uploads/1/3/2/6/132681887/dc8ca12901.pdfIn PDF document text
- http://files.newbeginningsintuitive.com/uploads/1/3/1/6/131637114/5780893.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/1/0429/1559/4393/files/22475635768.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8244/0103/files/25311389110.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/9142282406.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9004/2268/files/46936307854.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8844/5604/files/very_hungry_caterpillar_printable_coloring_sheets.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4711/5157/files/58065362891.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6406/6201/files/manufacturing_systems_engineering_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7949/9940/files/52080455819.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7083/3319/files/piwunekixonarilasofem.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0721/2694/files/46704817457.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3434/5625/files/marketing_concept_example.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6578/3958/files/resignation_letters_for_nurses.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4180/0860/files/aikido_the_complete_basic_techniques_gozo_shioda.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
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000060c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x60C7 | 6744 bytes |
SHA-256: 0eac1552a6a0cc8d6d43e14f5c157d052ff2bf21460314f67a2c213e0a454e63 |
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font_01_sfnt_off000071ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x71AE | 5720 bytes |
SHA-256: 7d760910bf8f36ba7ad9ec5ba477363139877a8ac856870c296edf435a056729 |
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font_02_sfnt_off00008515.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8515 | 2268 bytes |
SHA-256: 2b17894289ef4ac549ca5ccbfe538e6ebde94701791c0542cba9a71f2d67f349 |
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font_03_sfnt_off00008f28.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8F28 | 11500 bytes |
SHA-256: 5fd2441b15c3f0f75b0797f4eb5f38665bea6705f7406a9f7115d62d79b7c5a4 |
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