MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
This PDF document contains a mass of external links, with one prominent link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/wix?keyword=note+10+wallpaper', suggesting a lure related to 'note 10 wallpaper'. The presence of numerous links to static.usrfiles.com, many of which are classified as confirmed benign, likely serves to obscure the malicious redirector within a larger link farm. The ML classifier strongly indicated maliciousness.
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.cc/wix?keyword=note+10+wallpaper
- https://static.usrfiles.com/ugd/b5472a_5708970a18ff4855af95e5bf0cd1e081.pdf
- https://static.usrfiles.com/ugd/05301a_914b8eeebedc4c97a7eb45cbaac9e3c5.pdf
- https://static.usrfiles.com/ugd/de3d83_efaa247b7ab440328ebbd06d78c10c36.pdf
- https://static.usrfiles.com/ugd/b916f4_b301a75b7b4043c8a9a592e14b750bcd.pdf
- https://static.usrfiles.com/ugd/bf650e_19f8a17aaf5444649481a2dbb850d3a5.pdf
- https://static.usrfiles.com/ugd/b8c837_5ee0e4978d2f4d1aa929704d3dc48fbb.pdf
- https://static.usrfiles.com/ugd/b9801a_5731bb9f4cf445a688ea1e0cfd191a39.pdf
- https://static.usrfiles.com/ugd/01bc73_156b12b6462e4168b87f8af91257d8dc.pdf
- https://static.usrfiles.com/ugd/b8c837_411edc39752a410a853275659009416e.pdf
- https://cdn.shopify.com/s/files/1/0434/1750/1853/files/harmonized_tariff_schedule_2020.pdf
- https://cdn.shopify.com/s/files/1/0445/6284/1759/files/pestle_analysis_of_airline_industry.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006bea.binacd568a56e401ae7891b9420a44dd3fe8a9aab61e6fbb30848f76f78364fcfe1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6BEA | 4524 bytes |
font_01_sfnt_off00007b69.bin47a8f309cd8af63da32e62d896787b4bf8885e2f433f59ab2c089ce9229541c0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B69 | 10744 bytes |
font_02_sfnt_off0000a01b.bind1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA01B | 4324 bytes |
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