MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The heuristic PDF_SEO_LINK_FARM indicates a deliberate attempt to create a link farm, likely to distribute malware or engage in SEO poisoning. The ML_NYX_PDF_MALICIOUS score further supports the malicious nature of this PDF. The primary attack pattern involves luring users to malicious sites via these embedded links.
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=autocad+pdf+underlay+slow In PDF document text
- http://files.akiineventos.com/uploads/1/3/0/7/130739826/15317346c3c.pdfIn PDF document text
- http://files.kirstenmickelwait.com/uploads/1/3/2/6/132681851/xojataku.pdfIn PDF document text
- http://files.englandaccounting.com/uploads/1/3/0/7/130776370/fabafeti.pdfIn PDF document text
- http://files.thesciencelady.co.uk/uploads/1/3/2/6/132695467/89a8e58d58.pdfIn PDF document text
- http://resek.holygemstone.com/uploads/1/3/1/1/131163590/9198730.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/1/0429/7841/0655/files/sudagiduwuwotoz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1249/7303/files/as_3500._2.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2672/7580/files/94126626543.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1102/2756/files/muwanekizarebiwizureto.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4634/6658/files/bufosikupabakalirunapef.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4632/9750/files/uat_testing_plan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8788/8551/files/74578034768.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0670/5311/files/24853665293.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rejukimuvili.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2599/7722/files/legitujizumepiwopedonu.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000783e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x783E | 5332 bytes |
SHA-256: cf5e12d2113e49dccec3fb442075f7e1c94985a207f1f1f36c25b5412f4517f6 |
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font_01_sfnt_off00008a85.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A85 | 1800 bytes |
SHA-256: 51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0 |
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font_02_sfnt_off00009313.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9313 | 10656 bytes |
SHA-256: b2eb8037534d2b980eaccbbf18d2afc98113207dd74d8ac36b4e14b7c13e2128 |
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font_03_sfnt_off0000b7c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB7C1 | 16088 bytes |
SHA-256: b2ddecaff7e2361bf51021b35f9c014659943b600c4f466cb4656cea9e83b80e |
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