MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a deceptive lure for free piano sheet music, which upon inspection, redirects to a known malicious link. The document is structured as a link farm, with numerous embedded URLs pointing to various PDF files, likely to manipulate search engine results or distribute further malicious content. 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.link/wix?keyword=free+beginners+piano+sheet+music+printable
- https://cdn.shopify.com/s/files/1/0435/3831/7464/files/ligipavo.pdf
- https://cdn.shopify.com/s/files/1/0440/9622/5432/files/kwikset_913_manual.pdf
- https://cdn.shopify.com/s/files/1/0430/9948/8410/files/58624413319.pdf
- https://cdn.shopify.com/s/files/1/0431/7901/6360/files/political_ontology_colin_hay.pdf
- https://static.usrfiles.com/ugd/9b7d8a_6e83baf98b8c4d628aa2a22a610d1f0a.pdf
- https://static.usrfiles.com/ugd/784815_75dffe49924640dba4a1de495390d5e2.pdf
- https://static.usrfiles.com/ugd/b8c837_43deaa3efff0478aaac26c00240fc6a9.pdf
- https://static.usrfiles.com/ugd/b8c837_30af63356c804a899a100402006bec80.pdf
- https://static.usrfiles.com/ugd/b8c837_e6d1a1a281cd4e11a0b0ea853dca1c83.pdf
- https://static.usrfiles.com/ugd/4826f5_43555cc8711e4cfaa6cfff5cbdcc35e9.pdf
- https://static.usrfiles.com/ugd/b8c837_f0f6d74d10bc47bdb90ccbb503061549.pdf
- https://static.usrfiles.com/ugd/1fbf8b_a5571a50f47445d6ac38fc8645ce8f74.pdf
- https://static.usrfiles.com/ugd/2e4eb4_e5a51b835a8c46aeb3925c7bf02e7b5f.pdf
- https://static.usrfiles.com/ugd/99965f_afdb5642a12942c5bf373f47cfa82d61.pdf
- https://static.usrfiles.com/ugd/b8c837_8ed5dcf84bea4e1887ed27bc043eac2f.pdf
- https://static.usrfiles.com/ugd/b8c837_4a7dd56da96f4205b19c9cb2774b8e37.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_off00006fb9.bin7921c88e15ecc428422eab60ebe9489fe0501fd8b829b4c8ee2d2cf2aaab6c9f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6FB9 | 5444 bytes |
font_01_sfnt_off00008213.bin453d7f85f202d2e829dc839e47f1a70b4e85808164db3f26d5680b9ea8111b8f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8213 | 10620 bytes |
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