MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF document was flagged as malicious by an ML classifier and contains numerous embedded links. One of these links, https://ttraff.ru/pify?keyword=emotional+development+in+preschoolers+pdf, points to known malicious redirector infrastructure. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. The presence of a large number of external PDF links indicates a link farm strategy, likely to improve search engine ranking for malicious content or to distribute further payloads.
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=emotional+development+in+preschoolers+pdf In PDF document text
- http://files.convictedmerch.com/uploads/1/3/0/8/130813644/rimapudizudi.pdfIn PDF document text
- http://files.nancymontoyareports.com/uploads/1/3/1/4/131454620/jivewuvu.pdfIn PDF document text
- http://files.meaganhesham.ca/uploads/1/3/0/9/130969218/4591974.pdfIn PDF document text
- http://files.allseasonscreenrooms.com/uploads/1/3/2/8/132815318/daxitomojo-fekupizo.pdfIn PDF document text
- http://files.tarabooth.com/uploads/1/3/2/8/132815791/zefawova.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/1/0430/3673/7699/files/41337977819.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mofofuledezenededur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1675/7153/files/wefalogugi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5288/3352/files/poxabuwewogifejujiwez.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5291/5098/files/xorujotivizuzulinosus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/9008/7829/files/accounting_tools_for_business_decision_making.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2693/2124/files/94387180359.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/74832969368.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9722/6402/files/11004951140.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9354/1535/files/siditinonivi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8273/5006/files/calligraphy_brush_photoshop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8783/8886/files/dedezu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2328/6940/files/vesuxawipewiside.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_off0000684d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x684D | 5412 bytes |
SHA-256: df398723af4c3ea81114f3a7cceef078185a9f61d8278faef4472997e21ece60 |
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font_01_sfnt_off00007a90.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A90 | 10360 bytes |
SHA-256: cfaf341b6e8c2330877aaf7b5d19b8485f58061b30f4d0ebe17f54361ef890d4 |
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