MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'Autodesk revit structure tutorials pdf' and the malicious URL, suggesting a lure. The presence of numerous embedded URLs, many pointing to Shopify, indicates a link farm strategy, likely to obscure the primary malicious destination. The ML classifier strongly supports the malicious verdict.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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=autodesk+revit+structure+tutorials+pdf
- http://files.realty33nj.com/uploads/1/3/0/7/130775116/18d5fc8e8dbe8d9.pdf
- http://files.motherlodemontessori.org/uploads/1/3/1/4/131438274/rufebatoxinuseroj.pdf
- http://mavejirar.capstoneonline.com/uploads/1/3/1/6/131607240/0b770f08bf443fd.pdf
- https://cdn.shopify.com/s/files/1/0431/8350/5570/files/gnr_one_in_a_million_lyrics.pdf
- https://cdn.shopify.com/s/files/1/0433/3237/0584/files/bufoloregutawuvexova.pdf
- https://cdn.shopify.com/s/files/1/0431/7980/2782/files/cmt_router_bits.pdf
- https://cdn.shopify.com/s/files/1/0436/3033/0016/files/34938355483.pdf
- https://cdn.shopify.com/s/files/1/0440/0391/7974/files/advanced_english_dictionary_and_thesaurus.pdf
- https://cdn.shopify.com/s/files/1/0429/5337/5897/files/16676570482.pdf
- https://cdn.shopify.com/s/files/1/0429/1090/8572/files/tifapapanakigetogixefo.pdf
- https://cdn.shopify.com/s/files/1/0433/7631/2471/files/sukudaresuxenibajakulije.pdf
- https://cdn.shopify.com/s/files/1/0437/7870/3511/files/45740692928.pdf
- https://cdn.shopify.com/s/files/1/0437/5855/1189/files/bmw_warning_lights.pdf
- https://cdn.shopify.com/s/files/1/0439/9579/1518/files/effects_of_youth_unemployment.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000076fb.bin41b4247d3daa79d1d9026a62a7fd68cb6755c4df6540a3cafb4b4a9df89fba43 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76FB | 5264 bytes |
font_01_sfnt_off000088fb.bina3c878f9cbabbbd7b585e32607bec6ad51b17b2586e43c094aac1c5237c2faac |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x88FB | 10456 bytes |
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