MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1200 Hardware Add-in
T1059.001 PowerShell
The PDF document was flagged as malicious by a machine learning classifier and contains numerous embedded links. One critical heuristic identified a link to known malicious redirector infrastructure at `https://ttraff.ru/pify?keyword=attribution+theory+of+leadership+pdf`. The document body, though heavily obfuscated, also contains this URL and other links pointing to external PDF files hosted on various domains, suggesting a link farm or redirection strategy. The primary attack pattern involves luring users to click these links, which likely lead to malicious content or phishing pages.
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=attribution+theory+of+leadership+pdf In PDF document text
- http://files.unitydenton.org/uploads/1/3/0/8/130874250/danatinigamiza_toniraso_kekuxiziki.pdfIn PDF document text
- http://bomifa.sthelenaassociation-uk.org/uploads/1/3/1/6/131606552/e75715.pdfIn PDF document text
- http://files.paletteandpaper.com/uploads/1/3/2/8/132815753/33c02deff7f4b97.pdfIn PDF document text
- http://files.ohsweetbakery.com/uploads/1/3/1/0/131069789/4d506.pdfIn PDF document text
- http://files.ocbeerco.com/uploads/1/3/1/4/131406751/5541537.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/1/0433/7909/7758/files/48452461708.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/5287/4390/files/nozovowofediparorekim.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2819/3186/files/pajarinomaj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2841/3607/files/vegefaxoroj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4939/4080/files/fijifarugekaberex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/25346701784.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8947/7278/files/moboselibotosolite.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3893/3146/files/88916917418.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2503/1587/files/53796396173.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0649/2831/files/adobe_illustrator_cs5_tutorials.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5877/3662/files/zukixagemerubogu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7730/4481/files/acl_repair_rehab_protocol.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2890/6138/files/46874693526.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_off00006773.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6773 | 5360 bytes |
SHA-256: 6c16bf5e516785ce7373f8508fc04ece73ae4986847517083974df67bc2c964d |
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font_01_sfnt_off000079af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79AF | 10488 bytes |
SHA-256: db798321937f34d1103aaac6f347f7cec2ab085ec01e65b5d6a80eff31c4167f |
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