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 URL (https://ttraff.ru/123?keyword=classification+of+animals+worksheet+grade+4). This redirector is likely used to obscure the final malicious destination and distribute malware. The presence of a link farm and the ML classifier's high confidence score indicate malicious intent, likely to trick users into downloading further malicious content.
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/123?keyword=classification+of+animals+worksheet+grade+4 In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/9fe78fec-f5dc-4b33-8aa9-42855fe536f2/waxuvomuduxidukap.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a0401a5b-7ac8-4b0f-9b39-62e264c47f5c/42186991434.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fd72ac3c-022f-441a-8286-c3bd5a9ef2d6/48504179422.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/60f9d91c-26f4-4f58-b2fd-15a423d2dd17/80226970855.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0481/7679/1703/files/71245442409.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2454/0071/files/kiwamewawoxes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2825/6680/files/fotofojaxilaro.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0502/7296/0708/files/2020_john_deere_gator_825i_owners_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0493/1357/9174/files/xodomomupa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0499/4865/5784/files/android_source_code_security_review.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0484/8844/8162/files/26316367773.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0496/6006/7997/files/sintaxe_e_semntica_do_portugus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0503/8650/1806/files/tca_handbook_for_ceramic_tile_installation.pdfIn PDF document text
- https://s3.amazonaws.com/woberiz/38446503908.pdfIn PDF document text
- https://s3.amazonaws.com/felasorarabipis/16844798843.pdfIn PDF document text
- https://s3.amazonaws.com/henghuili-files/rugakol.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0484/2451/7800/files/att_answering_machine.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0497/8786/3201/files/jay_turser_guitars_price.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0504/2585/6198/files/95775919405.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0502/9462/0333/files/australian_tourist_visa_application_form.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_off00006e79.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E79 | 5584 bytes |
SHA-256: afd5c9a7791555581d27b0e9dc98ecaf1a6c3bd3b0305ce51a567f6fc93036f6 |
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font_01_sfnt_off00008162.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8162 | 10704 bytes |
SHA-256: f3d64f2469d86c284d809ad18fff0d42c99ebe78ddf00e2c74e6a35bb3159a36 |
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