MALICIOUS
120
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains, suggesting a link farm or SEO poisoning attempt. One critical heuristic firing indicates a direct link to a known malicious redirector: https://ttraff.cc/pify?keyword=cauchy+schwarz+inequality+proof+pdf. This redirector is likely used to obscure the final malicious destination. The document body, though heavily obfuscated, contains references to the redirector URL and other Shopify-hosted PDF links, reinforcing the malicious redirection pattern.
Heuristics 3
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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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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=cauchy+schwarz+inequality+proof+pdf
- http://files.aapae.org/uploads/1/3/1/4/131406275/9754189.pdf
- http://files.ww1trenchwatch.com/uploads/1/3/1/8/131872087/d9267.pdf
- http://files.parkyoga-utrecht.nl/uploads/1/3/0/7/130774993/keximu_wupukulevuxon_kizalikojesirax_xuzivoloxato.pdf
- http://files.kingdomofchristrealities.org/uploads/1/3/1/4/131455621/rurefesuvawizi_widarudu_radofutawodob.pdf
- http://files.cardinal-woodcraft.com/uploads/1/3/1/4/131453894/seduwirija.pdf
- https://cdn.shopify.com/s/files/1/0435/1574/0312/files/12135689211.pdf
- https://cdn.shopify.com/s/files/1/0436/9979/8166/files/nogixagenudi.pdf
- https://cdn.shopify.com/s/files/1/0433/6844/8152/files/75046147422.pdf
- https://cdn.shopify.com/s/files/1/0430/8549/6482/files/56617372284.pdf
- https://cdn.shopify.com/s/files/1/0437/9269/5456/files/dipuneratenawuzebenu.pdf
- https://cdn.shopify.com/s/files/1/0435/5175/2344/files/21022117689.pdf
- https://cdn.shopify.com/s/files/1/0431/3510/7233/files/diwos.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27039997465.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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000adff.bina8bb295adce06666852798224f8c17cf63d4c16f7697ae4b42c723da0a07d689 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xADFF | 3028 bytes |
font_01_sfnt_off0000b8db.bin4e17a4356e670118486d0bebacff3417ba6c7daa16e6b7f33d99066262d17eef |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB8DB | 5520 bytes |
font_02_sfnt_off0000cbb0.bin6d9044e88a600f55c2b8799f62b522751254ce0b91e35f70fc2ebfe1dc71f479 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCBB0 | 2172 bytes |
font_03_sfnt_off0000d511.bind8dca42094ff4eb243d1640fe719d4b116e2552964ae4553fe1c27c9bedb87ad |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD511 | 16652 bytes |
font_04_sfnt_off000109ac.binb75e40fa53a5b042f6c10f942a090146fb758cfb122fcda5ddb50b26f8869040 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109AC | 16500 bytes |
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