MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, many pointing to Shopify domains, but one critical link leads to a known malicious redirector at 'ttraff.ru'. This redirector is likely used to obscure the final malicious destination, which is presented to the user as a welding electrodes catalogue. The ML classifier strongly supports the malicious nature of this PDF.
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=ador+fontech+welding+electrodes+catalogue+pdf In PDF document text
- http://files.kennethlam-photography.com/uploads/1/3/0/8/130814682/9151999.pdfIn PDF document text
- http://files.raquelmeraki.com/uploads/1/3/2/7/132740860/3354846.pdfIn PDF document text
- http://files.raintreeandsea.com/uploads/1/3/0/7/130739099/dinezovabufapigin.pdfIn PDF document text
- http://files.markdifranco.ca/uploads/1/3/0/7/130739892/e92e5d382.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/1/0440/9013/0584/files/multivariate_analysis_of_variance_manova.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/0410/6651/files/79228377238.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7007/0687/files/94583588549.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6254/9910/files/jibek.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0342/8515/files/gurojedanivetogititib.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8059/8172/files/mac_recovery_server_could_not_be_contacted.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7141/5196/files/21965393139.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8017/9109/files/partial_differential_equations_and_boundary_value_problems_with_applications.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7678/0192/files/riguv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/3000/1302/files/90591466814.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/24863128440.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2790/6206/files/biwosuzazibuvawumup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9744/6816/files/78930247525.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_off0000497e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x497E | 5380 bytes |
SHA-256: ca7a03134ed35913d3be370b27309bbce0d40b3e7a1cc543998ca1cc27d73a39 |
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font_01_sfnt_off00005bda.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5BDA | 10224 bytes |
SHA-256: b11782cd863fd30a1988aaa0305be1bed9f9a561360fe2127f58d0fd46ce4c97 |
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font_02_sfnt_off00007ec8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7EC8 | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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