MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple embedded links, with one specifically identified as a malicious redirector. This redirector is part of a link farm designed to lure users into downloading further malicious content, likely for SEO-based phishing. The ML classifier also strongly indicated maliciousness.
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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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/wb?keyword=pathophysiology%20of%20protein%20energy%20malnutrition%20pdf In PDF document text
- http://files.globalisationandcities.com/uploads/1/3/1/6/131607174/jilaxafufusekiw.pdfIn PDF document text
- http://nidujor.buildwa.org/uploads/1/3/1/6/131606349/gemuji_jisegawarefapet.pdfIn PDF document text
- http://files.erauacafellas.org/uploads/1/3/1/4/131409309/6972752.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/1/0435/6079/6318/files/66728399050.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8430/0959/files/53131620136.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8950/2110/files/vegan_carb_cycling_meal_plan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5199/7592/files/free_church_bulletin_templates.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2634/1278/files/vuvidivelamis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6301/7629/files/xasewolimomenuziso.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7397/8011/files/nifasopubemipepul.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/1701/7256/files/wagubijurulixuk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0450/0904/3606/files/command_line_arguments_in_java.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5903/3752/files/bepikegagaxov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7720/6178/files/broiler_chicken_production_business_plan.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f49b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF49B | 5556 bytes |
SHA-256: 7f594a98de348997a79d67420a6c0a39e6c3caf2ac1983973f321e26aeea9133 |
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font_01_sfnt_off0001075b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1075B | 15968 bytes |
SHA-256: d4da27e71ca91f3016c420200f07392a5f161156168df6c405746525f3b0d00a |
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font_02_sfnt_off000138c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x138C3 | 16136 bytes |
SHA-256: 8d0ca5441952925faa6f68d28470995fcd5e3edd800b1977fac83179433ae1db |
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