MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that lead to a redirector URL, disguised as an academic worksheet. The ML classifier strongly indicated maliciousness, and the presence of numerous external links suggests a link farm or phishing attempt. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.
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/wb?keyword=ionic%20bonding%20lewis%20dot%20structure%20worksheet In PDF document text
- http://wukinuran.simplydirecthealth.org/uploads/1/3/0/7/130776394/xawabin.pdfIn PDF document text
- http://xuwigo.zackannfitness.com/uploads/1/3/1/4/131482993/9388812.pdfIn PDF document text
- http://files.ovsassociation.com/uploads/1/3/2/6/132695536/dc078.pdfIn PDF document text
- http://files.lostbanditmedia.com/uploads/1/3/2/7/132740480/1087086.pdfIn PDF document text
- http://files.rebeccafalcasantos.com/uploads/1/3/1/3/131398332/674229.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/1/0434/3644/1767/files/10432063933.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/40369191557.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6370/4729/files/61794101735.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1614/2491/files/acer_aspire_5733_drivers_windows_7.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9114/8444/files/xadijok.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/7416/2581/files/word_analogy_questions_and_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3873/4496/files/66265223330.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7285/5957/files/git_discard_all_local_changes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2580/0087/files/widebo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2762/0249/files/jisetijuku.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9452/2518/files/fijofimeza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/9484/1246/files/reporter_news_ethiopian.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5097/5910/files/36538809990.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3640/8982/files/solicited_vs_unsolicited.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_off000046aa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x46AA | 5224 bytes |
SHA-256: f8fa57a30ad3d17b304a86ba73f89fdb9079df2531fe145735b76648cbb8d208 |
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font_01_sfnt_off0000587b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x587B | 9036 bytes |
SHA-256: b78ea6192f1e0da9f68d3ee72d89c5ca8c49b252bbf70e744de9560332f13309 |
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