MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links designed to appear as legitimate PDF downloads, but they redirect to a malicious domain. The heuristic PDF_SEO_LINK_FARM indicates a large number of these links, and PDF_MALICIOUS_REDIRECTOR_LINK specifically flags the redirector URL. The ML classifier also strongly indicated maliciousness. The embedded URL in the document body, 'https://ttraff.ru/pify?keyword=restrictive+cardiomyopathy+guidelines+pdf', is the primary indicator of this phishing attempt.
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=restrictive+cardiomyopathy+guidelines+pdf In PDF document text
- http://files.indianhockeyskills.com/uploads/1/3/0/8/130814717/7919cf.pdfIn PDF document text
- http://files.southorndollstylequeen.com/uploads/1/3/1/4/131438891/65f4b7e06db.pdfIn PDF document text
- http://files.plumbcogroup.com/uploads/1/3/0/7/130775027/memelotej.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/1/0433/6893/9672/files/19830778835.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4447/0945/files/kotiginikoronuranoduted.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3915/2535/files/39705810776.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8144/0168/files/vudolutodesisidifopajevil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6335/3244/files/16646069001.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1047/3633/files/fewefogapefatopi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1103/7591/files/newly_wed_question.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/favubedezemopazejive.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/3786/5637/files/56112061970.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7998/1470/files/life_orb_gungeon.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0944/1953/files/50351785973.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6423/6968/files/bobcat_610_parts_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5769/3347/files/bsmrstu_question_bank_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85286147205.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c19f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC19F | 5620 bytes |
SHA-256: 2cd3183968d00f5665a9599e92f8891fe53d25e0842a18d4f5227f9c5f347d16 |
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font_01_sfnt_off0000d4a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4A8 | 10208 bytes |
SHA-256: ae69340e03c61c935a6b9b91ee3024c35400f3e34fd534fc3cca02a1044b7373 |
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font_02_sfnt_off0000f7b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7B8 | 16148 bytes |
SHA-256: aabbb95e4258a1bccfe6759090a0a8b97a33e8154131110566ffb2eaa8fdb080 |
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font_03_sfnt_off00010cae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CAE | 4324 bytes |
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
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