MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a malicious redirector link pointing to 'ttraff.com', which is flagged as malicious. The document body and embedded links suggest a lure to download a 'free biology textbook', but the primary link leads to a known malicious redirector. The PDF also contains a large number of external links, many hosted on cdn.shopify.com, indicating a link farm for SEO manipulation. No scripts were extracted, but the presence of malicious redirectors and the SEO link farm pattern strongly suggest a phishing or malware distribution attempt.
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=grade+10+biology+textbook+pdf+free In PDF document text
- http://files.handbendi.com/uploads/1/3/1/4/131437680/togufinuz.pdfIn PDF document text
- http://files.baanphitaktaweep.com/uploads/1/3/1/4/131437157/xetasu.pdfIn PDF document text
- http://files.chemtutorsg.com/uploads/1/3/1/3/131398507/wosokagar.pdfIn PDF document text
- http://vidip.itslikemusictomymouth.com/uploads/1/3/0/7/130739678/xalabozip-pudenupufadewe-juvodinalaxud.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/1/0433/3810/5000/files/max_ap_canopy.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1725/4558/files/13821748055.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1947/6896/files/70538836579.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2471/9773/files/brockenhurst_walks.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8571/6886/files/lesuzisinejaruvetuw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/3078/8758/files/29803268767.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rinajimakonewob.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/7439/4014/files/natoxunosimukix.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5919/9650/files/xesumadilefezigipe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4365/8650/files/pobexafok.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8974/0441/files/61934105213.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0070/9791/files/zodiwaxufozusedakononuw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8481/5259/files/midugizajifug.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_off00006a48.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A48 | 5628 bytes |
SHA-256: 820016643adc063ca56d36bb376ace3524275c9605fe6ba0db3d684943f73240 |
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font_01_sfnt_off00007d8f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D8F | 9916 bytes |
SHA-256: 1357c96a4a5716832bf35750b631999ab25d11f12ffbca9ee91a7abe69f7efc0 |
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