MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file exhibits characteristics of a link farm, embedding a significant number of external links, with a critical heuristic firing for PDF_SEO_LINK_FARM. One of these links, 'https://ttraff.ru/pify?keyword=psychoterapia+psychodynamiczna+zaburze%25C5%2584+osobowo%25C5%259Bci+pdf', is flagged as a malicious redirector. This suggests the document's primary purpose is to drive traffic to potentially harmful destinations, likely for SEO manipulation or to host 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=psychoterapia+psychodynamiczna+zaburze%25C5%2584+osobowo%25C5%259Bci+pdf In PDF document text
- http://files.hopeforhappy.com/uploads/1/3/1/3/131398093/logolu.pdfIn PDF document text
- http://files.sfhenson.com/uploads/1/3/1/6/131607110/xisitepale-bewazi.pdfIn PDF document text
- http://files.blowingsmokebbq.com/uploads/1/3/1/3/131384025/rudimatemeko.pdfIn PDF document text
- http://files.madonnaforinspiration.com/uploads/1/3/2/3/132303134/856400.pdfIn PDF document text
- http://files.lenreed.com/uploads/1/3/1/4/131453902/kijegidalitet_nakurovat_vimulij_fitisefetuzak.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/1/0431/5712/7336/files/dorobovorom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1721/5905/files/vuwapubafowopudupeb.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6045/3791/files/53956064869.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1537/1932/files/67807226772.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9078/7996/files/91683579989.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3861/3415/files/bapetilowopuru.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0100/4707/files/desadiwudofokuv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3095/3627/files/49552894564.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2433/4496/files/27297100203.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/77330784460.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7841/0655/files/zuvogofaputevixigebugeg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7211/9199/files/fasefofevavepugaso.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8495/5300/files/82404191195.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_off00008b1c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8B1C | 5960 bytes |
SHA-256: 62783ff352706dddc1796876e5583a777445e5906f63336010079e2738319e6c |
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font_01_sfnt_off00009e80.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9E80 | 11896 bytes |
SHA-256: 84348fd98bffd9da22710c354bb31a42b470836fe1017e15123a42eafa23692a |
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