MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains numerous links designed to redirect users to malicious infrastructure, masquerading as a legitimate document download. The primary redirector URL is ttraff.ru, which is flagged as malicious. The ML classifier strongly indicates maliciousness, and the PDF structure suggests it's part of a link farm for SEO-based phishing.
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=clsi+guidelines+for+antimicrobial+susceptibility+testing+2018+pdf In PDF document text
- http://files.darlingtonlecture.org.uk/uploads/1/3/1/4/131453213/pamarefizo.pdfIn PDF document text
- http://files.buildprinting.com/uploads/1/3/2/7/132712234/zezaj-nusesisuji.pdfIn PDF document text
- http://files.midnightriderbrts.org/uploads/1/3/1/4/131453494/fononetif-gokuf-wizoleja.pdfIn PDF document text
- http://files.pcdaa.ca/uploads/1/3/1/0/131071082/7147832.pdfIn PDF document text
- http://files.alessandrofanucchi.com/uploads/1/3/1/3/131379815/1523b69873b9d.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/1/0433/9925/0072/files/57186547486.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5688/2086/files/roredipapumufigoken.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2800/4507/files/ruxagajowek.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1742/1479/files/novovarikak.pdfIn PDF document text
- https://safuvukilidu.files.wordpress.com/2020/07/xulelomasizemalopujasema.pdfIn PDF document text
- https://zuxefeja.files.wordpress.com/2020/06/xejoxav.pdfIn PDF document text
- https://fufofedubi.files.wordpress.com/2020/07/27120911144.pdfIn PDF document text
- https://rogezomul.files.wordpress.com/2020/06/jujibujafakafakefop.pdfIn PDF document text
- https://zivudubu.files.wordpress.com/2020/06/84022799061.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8364/5599/files/kikisagataxedik.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1322/6139/files/41045265103.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/40169505762.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54101174921.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8315/9969/files/24272195111.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4902/5690/files/lelupokir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8799/4792/files/94308917667.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9563/7659/files/7295213080.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0464/9884/files/96630820581.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000084be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x84BE | 6140 bytes |
SHA-256: 69598dc65c4eafa7ab69283a76196e23f8e4c98cc0db02e9fbaf230982796074 |
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font_01_sfnt_off00009994.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9994 | 12444 bytes |
SHA-256: 7a2601f4238bb1b9dab982dc1d8fb9a9047229c776ee47f6bed1cf3310827cc9 |
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