MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file contains numerous embedded links designed to create an SEO link farm, directing users through a redirector to potentially malicious content. The primary redirector URL is `https://ttraff.ru/pify?keyword=marriott+s+practical+electrocardiography+13th+edition+pdf+free+download`, which is flagged as malicious. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to disguise the malicious intent as a free book download. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.
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=marriott+s+practical+electrocardiography+13th+edition+pdf+free+download In PDF document text
- http://lovijito.stasisves.com/uploads/1/3/1/3/131379362/wuzez.pdfIn PDF document text
- http://files.mynewonline.store/uploads/1/3/0/8/130874322/tetavutizepefu-disogasufuz-bamafos.pdfIn PDF document text
- http://files.silverfoxxjournal.com/uploads/1/3/1/3/131383380/mujaruwefonegoru.pdfIn PDF document text
- http://files.unitywinterguard.org/uploads/1/3/1/3/131379113/2586560.pdfIn PDF document text
- http://files.barrackvillechurch.com/uploads/1/3/1/4/131407823/bokitosuvotim_zokeguxuraxi_tuximop_wajokutopuxolu.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/1/0441/2011/3304/files/el_suicida_alfonso_reyes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7547/7416/files/14630678734.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5759/4011/files/how_to_remove_dropbox_from_mac.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4356/8278/files/rafulefebolaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0444/0319/6070/files/blueprint_english_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kubogofire.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4836/0343/files/english_word_list_with_meaning_and_sentence.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8309/4434/files/kaplan_sat_physics.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6533/5190/files/najumubatojowowiri.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1537/2949/files/55289018360.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7785/1553/files/86311504335.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8549/6469/files/savaruwasizigobutitez.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4607/4525/files/lowes_clearfield_pa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5848/7715/files/fevegowavabuxumogomijave.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_off00005d07.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D07 | 5832 bytes |
SHA-256: e299fd308d2eaf087a5db948e86f9d8cf71f0ad14098f4d4d5c67b1d40d255c4 |
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font_01_sfnt_off00007101.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7101 | 16184 bytes |
SHA-256: e1d530069e49a773d3137e215d0e3aa1a45a6e63280ad17115e1adf18ab53e19 |
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