MALICIOUS
150
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text suggesting it is related to sheet music, which is likely a lure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the presence of a link to known malicious infrastructure, and PDF_SEO_LINK_FARM indicates a large number of external links, typical of SEO poisoning or link farm abuse. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
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.ru/pify?keyword=i%2527+m+still+standing+free+sheet+music
- https://static.usrfiles.com/ugd/cf79db_6afa508e4d9b4189afb0be133b70e7b2.pdf
- https://static.usrfiles.com/ugd/b65acf_2b36f426a4d640808a4ea9b507e31161.pdf
- https://static.usrfiles.com/ugd/de3d83_4040c32f60ae47bdb59824980b72d817.pdf
- https://static.usrfiles.com/ugd/b8c837_0abbcbbff42644c4a10cc8ae1872525a.pdf
- https://static.usrfiles.com/ugd/eed56f_f7a7dbab8f4a4ff8a2e5c1470994aa21.pdf
- https://cdn.shopify.com/s/files/1/0433/9128/7452/files/44606375894.pdf
- https://cdn.shopify.com/s/files/1/0432/2227/0114/files/baixar_curso_de_violo_para_iniciantes_em.pdf
- https://cdn.shopify.com/s/files/1/0431/3566/4284/files/lovely_billie_eilish_clarinet_sheet_music.pdf
- https://static.usrfiles.com/ugd/409ca8_29ef67482fc24829a49301a669ca76a4.pdf
- https://static.usrfiles.com/ugd/b65acf_3f42964d6a71408f928ef0bc80fd18f7.pdf
- https://static.usrfiles.com/ugd/f6a907_c3f6a71d713f44eaab9404fe6ef6e953.pdf
- https://static.usrfiles.com/ugd/b8c837_8f4a2c07e0b840fabca3136754149fbb.pdf
- https://cdn.shopify.com/s/files/1/0432/6726/0576/files/mirro_pressure_cooker.pdf
- https://cdn.shopify.com/s/files/1/0434/8795/3062/files/chordates_mcqs_with_answers.pdf
- https://cdn.shopify.com/s/files/1/0429/6451/7023/files/apparel_manufacturing_book.pdf
- https://cdn.shopify.com/s/files/1/0432/8488/9758/files/wozadesefeki.pdf
- https://cdn.shopify.com/s/files/1/0434/8067/8564/files/divex.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_off0000636b.bin0606e434836624a3ded076814a6d7a62f4419ae83f869a10cc1cb2758b4da980 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x636B | 5404 bytes |
font_01_sfnt_off000075a7.bina190fb0f5dfa997838ed794196ef72ed05208039f6efd8b70f80dbf088893e0f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75A7 | 9988 bytes |
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