MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) that is associated with malicious activity. The document body, though obfuscated, contains the same redirector URL, suggesting a phishing or scam lure. The presence of many external PDF links indicates a link farm SEO tactic, likely to improve search engine ranking for malicious content.
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=broncopneumonia+infantil+pdf In PDF document text
- http://kemadave.owensdumpservices.com/uploads/1/3/1/3/131381464/9529020.pdfIn PDF document text
- http://files.lisadring.com/uploads/1/3/1/4/131406800/7e75986ec2eba.pdfIn PDF document text
- http://mutenaru.adamsternconductor.com/uploads/1/3/0/7/130776330/2816802.pdfIn PDF document text
- http://sifaxu.recycledcabinetsolutions.com/uploads/1/3/2/6/132680839/7183222.pdfIn PDF document text
- http://lejal.badlyscattered.com/uploads/1/3/1/4/131483281/doxunulo-wukemelorida-vonanuk.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/1/0429/1916/6105/files/79475807000.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6057/5899/files/merriam_webster_dictionary_of_synonyms_and_antonyms.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5554/6517/files/53423139606.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6176/2455/files/boone_and_crockett_score_sheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8180/1629/files/gofirofimotizamogizif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/7613/0718/files/gekoxojutuzigomoronodilab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2728/1558/files/carcassi_guitarra.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8279/2606/files/54871958886.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2693/1099/files/nhs_pension_opt_out_form.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7927/9527/files/the_thrill_of_the_chase_a_memoir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/3248/6823/files/accounting_cycle_steps_with_example.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9403/2040/files/46247422371.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6559/0438/files/jimilipiwavum.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_off00006415.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6415 | 5172 bytes |
SHA-256: 4038c9106308a156a639c6035d27d7101dccbbe9d2ca9d081931429af646c037 |
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font_01_sfnt_off0000758d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x758D | 10068 bytes |
SHA-256: 816074477e23ae300254ea91929a465608f7cc6ddce876dc18eb0c07d8ebfde9 |
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