MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a link to a known malicious redirector, disguised with a search query for 'twenty one pilots piano sheet music easy'. This suggests a social engineering tactic to trick users into clicking the link. The PDF also hosts a link farm pointing to various PDF files, likely for SEO poisoning or to obscure the malicious redirector. The ML classifier strongly flagged this PDF as malicious.
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=twenty+one+pilots+piano+sheet+music+easy
- https://musescore
- https://static.usrfiles.com/ugd/46429b_5ee029c5bbcc472894f5e66d4e301716.pdf
- https://static.usrfiles.com/ugd/47b1e8_7cbb1d6eb58449c0a984342024d22274.pdf
- https://static.usrfiles.com/ugd/b8c837_c3cc08bbea914980af47646a1456721e.pdf
- https://static.usrfiles.com/ugd/b8c837_607e5fb06bcc44f8b07ec7d86fae0efb.pdf
- https://static.usrfiles.com/ugd/b8c837_fe4d156699cb4103ae10e8fb5e5bc39a.pdf
- https://static.usrfiles.com/ugd/2074c9_991a6f574e2646a29b76ed7dc701f694.pdf
- https://static.usrfiles.com/ugd/1f2646_bc6faf7e419f4c068ddf67138f0cdc0c.pdf
- https://static.usrfiles.com/ugd/c3548c_4ad6426372f649afa1d57f9e6c7e53f9.pdf
- https://static.usrfiles.com/ugd/d51d36_e66fa0618d974ac1a58f574c1ef71f4a.pdf
- https://static.usrfiles.com/ugd/aef5b7_21cd421fd1f0406c9b41771e67b6de31.pdf
- https://cdn.shopify.com/s/files/1/0429/6019/1641/files/jijuj.pdf
- https://cdn.shopify.com/s/files/1/0435/4516/5975/files/mtg_arena_launcher_not_working.pdf
- https://cdn.shopify.com/s/files/1/0440/1673/0277/files/komagew.pdf
- https://cdn.shopify.com/s/files/1/0435/5093/3155/files/google_resume.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_off0000748b.bin9eb66007b4b17da00eeeeae2c5b2b641c03fc349d0840cf813536eca35e899c0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x748B | 5220 bytes |
font_01_sfnt_off00008640.bin8971e42856647f49a0e2094e98251d68da9eed409e81d976c4ed0d7be36ffe3e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8640 | 16628 bytes |
font_02_sfnt_off0000baf8.bin46d9b83afd797048ab251ddfc9ca9a6db44f3280724c231f6a80a061bcc6fc12 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBAF8 | 16120 bytes |
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