MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains multiple embedded links, with one specifically identified as a malicious redirector. The document body text, though partially garbled, includes the target URL, suggesting a lure to a site offering a calculus textbook. The heuristic firings confirm the presence of a malicious redirector and a link farm, indicating an attempt to drive traffic to potentially harmful content. No scripts were extracted from this sample.
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/pify?keyword=calculus+analytic+geometry+larson+pdf In PDF document text
- http://verorula.pula-fishing.com/uploads/1/3/2/6/132682646/nitazigeb_zaxonavuz_pidiridatarufob.pdfIn PDF document text
- http://files.joseluisperezjim.com/uploads/1/3/1/3/131383553/gejuxab.pdfIn PDF document text
- http://files.dmahc.com/uploads/1/3/0/7/130739633/3847829.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0437/8191/4781/files/carnival_sunshine_deck_plans.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4570/7162/files/rapixabozeguvekapinorefut.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8250/5637/files/monthly_student_attendance_sheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/2423/5170/files/delijezopasawadixuvo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0577/1927/files/gipujoregidazi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1264/3223/files/acrobat_editor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3237/0590/files/volume_of_prisms_and_cylinders_worksheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/5543/0309/files/cash_flow_statement_solved_problems_with_adjustments.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5454/6590/files/13398540469.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0923/5353/files/xesufexibejunuzupuk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3239/6447/files/vusanasupomugatelufo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5165/5061/files/water_pollution_introduction_project.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9076/3175/files/46178685181.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/63912397784.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004ebf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4EBF | 7548 bytes |
SHA-256: aa3e21aa6aa32a78d8a79b6f079f2f3b4959896a923a4266363fe27378701828 |
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font_01_sfnt_off000067bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x67BC | 5484 bytes |
SHA-256: 2a9c99c7ba131c27a2584c1e7fe4c6cf1a905cfcf7f7acd36eca3b8d54d2a740 |
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font_02_sfnt_off00007a50.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A50 | 10012 bytes |
SHA-256: 989dbbaaebb6af74f0432beba9881ac53ad39b63a13fcf5274ee5feae2bfc1c8 |
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font_03_sfnt_off00009c4b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9C4B | 4324 bytes |
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
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