MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links designed to create an SEO link farm, with a primary redirector pointing to a malicious website. The document body, though heavily obfuscated, contains the same redirector URL, suggesting a phishing or scam attempt. The ML classifier also strongly indicated maliciousness.
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.com/wb?keyword=wet%20op%20de%20ondernemingsraad%20pdf In PDF document text
- http://files.vomorenburg.com/uploads/1/3/1/1/131164431/5580987.pdfIn PDF document text
- http://files.victoriacircus.com/uploads/1/3/1/3/131379406/1730083.pdfIn PDF document text
- http://vokiwege.scaffolddawgs.com/uploads/1/3/0/7/130739059/5f08b7a7.pdfIn PDF document text
- http://zudowi.buyportlandstores.com/uploads/1/3/1/4/131438025/jimakuk.pdfIn PDF document text
- http://nubexe.pattyschroeder.com/uploads/1/3/0/7/130775732/3231517.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/1/0429/5501/4298/files/muputamureg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0916/9815/files/vuliwi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3342/0199/files/7801030819.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6728/4383/files/barbara_cartland_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3191/0821/files/14184571691.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5692/2777/files/fuzedakijaruzukage.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0904/7708/files/dd-_214_blanket.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2601/4620/files/6339962295.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1342/0702/files/addition_and_subtraction_word_problems_worksheets_5th_grade.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4257/0402/files/sirir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0473/1300/files/href_lnks_displaying_as_plain_text_php.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9360/6048/files/eleventh_hour_cissp.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5735/6710/files/tomiseno.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5681/6540/files/the_danish_girl_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6759/6184/files/saxuri.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_off00006460.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6460 | 5344 bytes |
SHA-256: 7e6ada507389f2518eced3eb543d1a8df9e269c75d2b0380ee2121934a8add7a |
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font_01_sfnt_off00007681.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7681 | 10540 bytes |
SHA-256: 16e17d01bc4139528684676628adef7672e9ddbdc88c8cfa06f8792fe22adfda |
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