MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.ru/wix?keyword=beginner+piano+sheet+music+for+adult', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'beginner piano sheet music for adult' and the malicious URL, suggesting a lure to entice users to click the malicious link. The ML classifier also 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.ru/wix?keyword=beginner+piano+sheet+music+for+adult
- https://cdn.shopify.com/s/files/1/0430/3260/8921/files/11314232550.pdf
- https://cdn.shopify.com/s/files/1/0436/2820/0096/files/xelapapawod.pdf
- https://cdn.shopify.com/s/files/1/0437/2781/4810/files/77964507834.pdf
- https://cdn.shopify.com/s/files/1/0430/5348/2138/files/88231566761.pdf
- https://static.usrfiles.com/ugd/b8c837_aa6bf0803f6d4259b4f05063ca9a7296.pdf
- https://static.usrfiles.com/ugd/b8c837_0d2c6123146c4d618dc198f64f0fa3c5.pdf
- https://static.usrfiles.com/ugd/b8c837_45efedfe25864268ad47df863318a9b9.pdf
- https://static.usrfiles.com/ugd/b8c837_149928f1bd4a4ddb87ba87799a200367.pdf
- https://static.usrfiles.com/ugd/b8c837_6da63428f93e4d8aa7d384ada091b80b.pdf
- https://static.usrfiles.com/ugd/b8c837_91e4cd5f6e8c49ab92b060318affabda.pdf
- https://static.usrfiles.com/ugd/b8c837_40d955db258743aca8a77424d677199c.pdf
- https://static.usrfiles.com/ugd/b8c837_c612aa6c3eb24ee98c48caaadba5c8bb.pdf
- https://static.usrfiles.com/ugd/b8c837_99ba59804ab64eb4abdcbe0392892358.pdf
- https://static.usrfiles.com/ugd/b8c837_78becd815b094071a59ceb8afbc0b874.pdf
- https://static.usrfiles.com/ugd/b8c837_23c7d0aeac2b4d37ba680e36ea7ee7b9.pdf
- https://static.usrfiles.com/ugd/b8c837_63709972f7bb491fa0b25fc2089647cc.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_off0000627d.bin599a47c8b045aee7222f3056f9e63f13a8b185798534ffe71e3e2e0a72670610 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x627D | 5616 bytes |
font_01_sfnt_off00007567.bina5b8005d456f89d1ebc69ab1b8730fd868a1d606fc4eda21fb67d675c5278648 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7567 | 10060 bytes |
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