MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded URLs, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'Dr Henry A Wise High School staff' and a malicious URL. The ML classifier strongly flagged this PDF as malicious, suggesting it's designed to redirect users to harmful 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.com/123?keyword=dr+henry+a+wise+high+school+staff In PDF document text
- https://cdn-cms.f-static.net/uploads/4370542/normal_5f9862f2649f2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366402/normal_5f897fd0ceb1b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369189/normal_5f8db4af71e22.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/1/0501/8756/7265/files/cheech_and_chong_animated_movie_free_online.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e68e6128-36ec-4cc3-a9e3-45afa8b887bf/15129944231.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/58c1a0f4-f573-441d-9b12-88e8a9b989fd/lufenizokederujijipuzibir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0268/8611/1429/files/xcom_enemy_unknown_android_amazon.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0497/7410/0634/files/25394872610.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3086c68d-2444-4f08-9f7f-baaa4c3eecae/because_of_romek_movie.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8797/8913/files/apk_nesine_iddaa_program.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0486/5726/8886/files/31148231454.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_off00006ac1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6AC1 | 5336 bytes |
SHA-256: 3504be3c9c31e052cc845363baf485c1332685c75f1dd51d9842c2c449b5e6cd |
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font_01_sfnt_off00007d06.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D06 | 10780 bytes |
SHA-256: 0db517d9d243f8a0086fb7e72749097a6114b27d80606589551433821306246a |
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