MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document contains numerous embedded links, masquerading as educational material, that point to a link farm and a malicious redirector. The primary malicious URL identified is https://ttraff.ru/wb?keyword=segundo%20condicional%20ingles%20ejercicios%20pdf, which is flagged as a redirector. The ML classifier also strongly indicated maliciousness. The document's structure and content suggest a phishing or SEO spam campaign designed to drive traffic to malicious infrastructure.
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.ru/wb?keyword=segundo%20condicional%20ingles%20ejercicios%20pdf In PDF document text
- http://files.demirandaguitar.com/uploads/1/3/1/8/131871690/fokodibavuf_zogovisum.pdfIn PDF document text
- http://files.raananahikers.com/uploads/1/3/0/7/130775025/fixem_gifasuv_lodarojexe_bofagikapinasex.pdfIn PDF document text
- http://files.westmontmusicacademy.com/uploads/1/3/2/6/132683484/2c9b5e.pdfIn PDF document text
- http://files.lisaramseyphotography.com/uploads/1/3/0/7/130739658/7732559.pdfIn PDF document text
- http://files.bronnerlab.com/uploads/1/3/1/8/131857818/edba9b339e2.pdfIn PDF document text
- http://files.sacredmusicfestival.org.uk/uploads/1/3/0/9/130969298/relizameveva.pdfIn PDF document text
- http://files.mpindt.com/uploads/1/3/2/6/132683147/1616115.pdfIn PDF document text
- http://files.ubtsshreveport.org/uploads/1/3/1/3/131383305/jopipetibi_rikixup_fimiparakux.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://xaluwab.files.wordpress.com/2020/06/kileleritiduvezadok.pdfIn PDF document text
- https://xevadev.files.wordpress.com/2020/06/66075979261.pdfIn PDF document text
- https://dinipexus.files.wordpress.com/2020/06/34988534413.pdfIn PDF document text
- https://vipapemekus.files.wordpress.com/2020/07/81049850611.pdfIn PDF document text
- https://ribodijexob.files.wordpress.com/2020/07/judusowaga.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/12729031526.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mowelikuzamutaj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72593533024.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pelezegagujagemubejapo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wefudebavisizaku.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mofofuledezenededur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kilezibuvi.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000060a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x60A7 | 5304 bytes |
SHA-256: ccd862f0677c5bba575b4b80afdd75fae56af9d37213f4bbab5e884e649706d6 |
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font_01_sfnt_off000072b5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72B5 | 11264 bytes |
SHA-256: 7ac4c0c3411f82d4f0419d0ccf4dfc08e054aa9fec0fc49972c8644a3a784662 |
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font_02_sfnt_off00009776.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9776 | 16240 bytes |
SHA-256: 0674acd334b5d9d24fca46324cf24cdceda2da50095ae44f67deaeca14b27464 |
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