MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple heuristics indicating malicious redirector links and an SEO link farm. The embedded URL points to a redirector that likely leads to a phishing or malware download page. The ML classifier strongly supports the malicious nature of this PDF.
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://traffking.ru/123?keyword=word+within+the+word+list+19+pdf In PDF document text
- https://ziwavolenexajid.weebly.com/uploads/1/3/4/5/134503628/455956.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387031/normal_5f9ea8e575354.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366033/normal_5f8e12658bb7d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374860/normal_5f8c40b1e6a0e.pdfIn PDF document text
- https://s3.amazonaws.com/bevarolimesale/51757835072.pdfIn PDF document text
- https://s3.amazonaws.com/luresimosip/mla_song_citation_in_text.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4413842/normal_5fa086eae640b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4373502/normal_5f8a49607bdbe.pdfIn PDF document text
- https://s3.amazonaws.com/tifuwuw/british_english_received_pronunciation.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4460461/normal_5fa3848f4b19f.pdfIn PDF document text
- https://biwomewiwuxe.weebly.com/uploads/1/3/4/1/134131409/lazetipu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000871f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x871F | 5232 bytes |
SHA-256: 5b081938b86c11dd4330cafae8227be087562e1959c17e28206006bda6c07a51 |
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font_01_sfnt_off00009904.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9904 | 10628 bytes |
SHA-256: 858854718ed40a7d35f5c4b5149c1885caa610edc8a8466d5ee1000576e5ff3a |
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