MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains multiple links to redirector infrastructure, specifically `https://ttraff.ru/pify?keyword=pdf+book+reader+download`, which is flagged as malicious. The document body and heuristics indicate a social engineering lure to install a browser extension or update, a common method for malware delivery or credential theft. The presence of numerous SEO-linked PDFs suggests an attempt to create a link farm for traffic redirection.
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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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=pdf+book+reader+download In PDF document text
- http://files.executivesuitesofcapecoral.com/uploads/1/3/1/3/131384098/9190152.pdfIn PDF document text
- http://files.davesartdimensions.com/uploads/1/3/1/6/131606348/vojetiborakupo.pdfIn PDF document text
- http://files.gilfordphysicaltherapy.com/uploads/1/3/1/6/131637177/memuju.pdfIn PDF document text
- http://files.prrms.com/uploads/1/3/0/9/130969489/9540295.pdfIn PDF document text
- http://www.fotolia.com''gt;Fotolia.coIn 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/1/0439/6823/3630/files/sasezuto.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5762/4726/files/traders_guide_johnstown.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2068/9306/files/subarachnoid_hemorrhage_guidelines.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4839/4142/files/89508414890.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3485/9927/files/41633808946.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5153/2963/files/xemiduvotowazikok.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5648/6807/files/bowen_mathematics_solution.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1488/8360/files/java_programming_tutorial_in_bangla.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7300/2902/files/erik_erikson_theory_development_stages.pdfIn PDF document text
- http://www.fotolia.comIn 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_off00006359.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6359 | 4680 bytes |
SHA-256: f7ba8cf4d0aca533096ce678bcb5325c516db9e7e778990134b397cf03333a43 |
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font_01_sfnt_off00007352.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7352 | 9956 bytes |
SHA-256: a6eb0d74f99d3984fe726f887736d4c54d16e759937d34883df7a53405bb10ec |
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font_02_sfnt_off00009567.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9567 | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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