MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to a redirector service. The document body, though heavily obfuscated, contains a URL that appears to be part of a phishing lure related to educational worksheets. The ML classifier strongly indicates maliciousness, and the presence of a malicious redirector URL confirms a high likelihood of user redirection 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.cc/pify?keyword=adding+decimal+numbers+worksheet+year+6 In PDF document text
- http://fetudila.creatingscience.org/uploads/1/3/0/8/130874090/finudevivav.pdfIn PDF document text
- http://files.getretti.com/uploads/1/3/2/6/132683330/9a8771dd.pdfIn PDF document text
- http://files.fitnessintrigue.com/uploads/1/3/0/7/130776208/tinevamaj_jadovunusug_lulakulizawa_zuziziji.pdfIn PDF document text
- http://files.onbradstreetfarm.com/uploads/1/3/1/4/131406412/28598c2e7.pdfIn PDF document text
- http://tosed.oursouldoors.com/uploads/1/3/1/6/131607000/8065223.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/1/0429/6717/1223/files/28068496397.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9647/3749/files/bruner_theory.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0394/4858/files/sy_bsc_microbiology_syllabus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1206/2364/files/58553466195.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2272/0922/files/32694815045.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9602/2933/files/nowatibopowi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8255/5297/files/zejojudo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5490/4997/files/convert_kindle_books_to.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0451/1324/5848/files/importance_of_globalization_in_education.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9814/4932/files/callese_y_venda_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7954/1671/files/19964825179.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/7618/8315/files/72108567599.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7480/5148/files/watch_the_avengers_2012_1080p.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5637/3659/files/tovig.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_off00005134.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5134 | 5896 bytes |
SHA-256: 590ae831dc60818053a9b8335cf1fcb02059baab763f4a6c04d99dd8f9854461 |
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font_01_sfnt_off0000651c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x651C | 9620 bytes |
SHA-256: e3b2574a35f74db781485518988aac6eb51ce48d254e02b0ad25f728c6da65b6 |
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