MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/wb?keyword=purulent%20pericarditis%20pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or 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/wb?keyword=purulent%20pericarditis%20pdf In PDF document text
- http://files.pendrelracing.com/uploads/1/3/0/7/130775171/vinubowiwotuxitati.pdfIn PDF document text
- http://paxaro.24hrtowingriverside.com/uploads/1/3/1/0/131069934/8067438.pdfIn PDF document text
- http://files.teamhmac.com/uploads/1/3/2/3/132303320/5939541.pdfIn PDF document text
- http://files.boernebrandshop.com/uploads/1/3/1/4/131454521/8552911.pdfIn PDF document text
- http://files.mitalentzcompany.com/uploads/1/3/2/6/132681891/607ac08985f70f.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/1/0431/2504/7463/files/xagonisa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3662/2498/files/18404622864.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0996/4192/files/35212560258.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3329/6028/files/can_kindle_read_books.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8019/7031/files/bjt_configurations.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8849/4236/files/befujomoxaki.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4976/2459/files/sikikopipa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/8078/3774/files/virtualbox_windows_98.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7398/4919/files/adobe_viewer_for_chromebook.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4513/5260/files/convert_to_word_adobe_illustrator.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5721/6678/files/rumoxifupo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5546/4104/files/sony_erricsson_w580i.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7471/4790/files/wii_point_generator_no_surveys.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/7710/5832/files/vuxanibam.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_off000071d2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x71D2 | 5152 bytes |
SHA-256: 3aa1163b512419cd6a241374d4fa899d2439c1f48e48481a25cfc2ffa30142b1 |
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font_01_sfnt_off0000835b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x835B | 10348 bytes |
SHA-256: 4b4d1310648f667c49c57495cedf480b0ab04b751bd85ccb3c46dbf0d07d436a |
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