MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link redirects to a known malicious infrastructure at 'ttraff.cc'. This suggests a link farm or SEO poisoning technique used to distribute malicious content. The ML classifier also strongly indicated maliciousness. The primary attack vector appears to be social engineering via a lure for a PDF download, leading to a 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.cc/pify?keyword=catholicism+for+dummies+pdf In PDF document text
- http://files.grayboxprojects.com/uploads/1/3/0/9/130969817/memevubukaboleteluza.pdfIn PDF document text
- http://files.crosstekco.com/uploads/1/3/1/3/131378838/6156966.pdfIn PDF document text
- http://files.katemcelroy.com/uploads/1/3/1/8/131871568/3252074.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/1/0432/5667/6510/files/xisarul.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7809/0901/files/hp_laserjet_3050_driver.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0664/7717/files/jajodopatedugapuzabozis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1174/2628/files/lusidiseg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4041/5644/files/jegokuxeki.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6698/2561/files/melakusoni.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0638/5573/files/45974247971.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4138/0762/files/91821377759.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3146/1016/files/57350745643.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5165/5076/files/wojanejoso.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6264/7189/files/80868748617.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6695/7722/files/rekoviwijaxekopisebafus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8392/2585/files/lepibenajafawuze.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3279/6574/files/blogspot_books.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_off00006906.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6906 | 5196 bytes |
SHA-256: 572c374e69c6c05740b9c50d3a013b954d76e590677a3fd02ee924e4f457e832 |
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font_01_sfnt_off00007ab1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7AB1 | 10388 bytes |
SHA-256: 570a31f1833dd204aba70d38c563ba385ae3d1e74b5ea6b222e0a13e5f8203a0 |
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font_02_sfnt_off00009e1f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9E1F | 4324 bytes |
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
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