MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple heuristics indicating malicious redirection and a link farm, specifically pointing to a redirector URL. The document body, though partially corrupted, contains text related to exam results and the malicious URL, suggesting a phishing or malware distribution lure. The ML classifier strongly flagged this PDF as malicious, reinforcing the assessment of a malicious redirector.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=uptet+revised+answer+key+2020+pdf In PDF document text
- http://files.bacmedicaltourism.com/uploads/1/3/2/6/132681587/xesezotatus.pdfIn PDF document text
- http://files.nejnamc.org/uploads/1/3/1/6/131607346/bujowadatasivo.pdfIn PDF document text
- http://files.cleelumroundup.com/uploads/1/3/1/3/131398234/ginafa-zisumi.pdfIn PDF document text
- http://files.oakwoodequestrianfl.com/uploads/1/3/1/3/131380343/3afe26741.pdfIn PDF document text
- http://files.ritchierealtors.com/uploads/1/3/1/4/131482975/gibovaxodanaje.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5276/0224/files/kigepolulizutijozerazam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4206/1986/files/xisivasupokubavadisa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9295/9642/files/91661304409.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4008/0025/files/latin_to_english.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/5676577217.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3609/0267/files/7413406670.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/6021/4425/files/inkscape_export_as_svg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/0980/8283/files/pewedivivepawe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6636/8935/files/12385714871.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1043/1896/files/27382253881.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7018/5879/files/kotovetegosejoraso.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006178.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6178 | 5588 bytes |
SHA-256: a3a297db47b7a7ae6e127d7edf34514caee14349eba34100a59d4ee6e2f395fd |
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font_01_sfnt_off000074ad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x74AD | 15340 bytes |
SHA-256: 17c6b634d1891a162d7d6b527b717a2248f6ef28c31b3b58a764366cf8b2955d |
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font_02_sfnt_off0000a40c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA40C | 6488 bytes |
SHA-256: 7572e8f7c47b31d3d2d05977b111753a840e98816793d1b3630908ffeacac53d |
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