MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 Malicious Link
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=behold+a+pale+horse+audiobook'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf and includes the phrase 'Behold a pale horse audiobook', likely a lure to entice clicks on the malicious redirector.
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=behold+a+pale+horse+audiobook In PDF document text
- http://files.thegoodloaf.co.uk/uploads/1/3/1/3/131380942/zerinobilidini-zikizagikulol-dubiwaluwi.pdfIn PDF document text
- http://files.cramerpottery.com/uploads/1/3/1/3/131398374/tapelodowanop-vodeziter-fawibarazowisuz.pdfIn PDF document text
- http://files.reseeworks.com/uploads/1/3/0/8/130813841/d5723.pdfIn PDF document text
- http://files.bluegrassstream.com/uploads/1/3/0/7/130775373/pekobu_kanuwupi_vuzazuso.pdfIn PDF document text
- http://files.alhasoob.co.uk/uploads/1/3/2/6/132696015/2388652.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/1/0431/6643/3429/files/52836411744.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5945/3860/files/natefu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1607/4902/files/84789091505.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8851/9080/files/jojowisine.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1646/1211/files/41421539580.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9801/3850/files/waxofusegeg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2248/2582/files/kukirelafazijemiw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1125/2132/files/rivavedurawetosevutorum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1126/0062/files/fivexakeneg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4500/3169/files/giruteg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2702/9400/files/newakulex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8649/5396/files/51529121456.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9993/9235/files/25017509226.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_off000061ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61BA | 4996 bytes |
SHA-256: cfee00baa6bbca292af740a567192334044f4818930ae5a73321966d902d7797 |
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font_01_sfnt_off000072b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72B3 | 9800 bytes |
SHA-256: 4e51cc6110556b19a52749f93dc274544ea46d50dea8a28c4526c95e7ced218b |
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