MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links that point to a known malicious redirector infrastructure, specifically ttraff.com. The document body, though heavily obfuscated, contains text related to 'neural networks and deep learning a textbook pdf', suggesting a lure to trick users into clicking the malicious link. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous external PDF links further supports a malicious intent, likely to drive traffic to malicious sites.
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/pify?keyword=neural+networks+and+deep+learning+a+textbook+pdf In PDF document text
- http://files.sarahrosepeterson.net/uploads/1/3/1/4/131438439/tiwoxekofoze.pdfIn PDF document text
- http://files.princealbert.cjsclimbandplay.com/uploads/1/3/2/6/132682171/gometelinagibizo.pdfIn PDF document text
- http://files.helsbellshandmade.com/uploads/1/3/1/3/131384777/4515839.pdfIn PDF document text
- http://files.calebmelchior.com/uploads/1/3/0/8/130874304/3fd43be46.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0434/1553/5774/files/3603091925.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0219/1269/files/microsoft_office_portable.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1479/7981/files/wumanimulumetak.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9091/2159/files/7190372043.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/7750/4925/files/bajrangi_bhaijaan_full_movie.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9707/9460/files/14591890944.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4324/9576/files/agathosma_betulina.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8330/0005/files/wemek.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5564/4823/files/91806486492.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8553/6161/files/diare_pada_bayi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1239/9010/files/67876924518.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1495/4908/files/79944416219.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/7579/5099/files/gozaxotafi.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007a0f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A0F | 5424 bytes |
SHA-256: af7915c767c197176b687c8ea5876960b399da1c3262a79c2d83fb079e1b44aa |
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font_01_sfnt_off00008ca9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8CA9 | 10416 bytes |
SHA-256: 6a40a44ddfa7aafd5bbdcff3f69540540bab238e9d9ec914120190db15e12bbe |
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font_02_sfnt_off0000b033.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB033 | 4324 bytes |
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
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