MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically targeting searches for 'musescore flute sheet music'. The ML classifier strongly indicated maliciousness, and the PDF structure suggests a link-based redirection attack. The embedded URLs are part of a link farm, with one URL pointing to a known malicious redirector.
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/pify?keyword=musescore+flute+sheet+music
- http://files.skinlosophy.shop/uploads/1/3/1/0/131070849/25cad8cfc.pdf
- http://sibip.spoontogether.com/uploads/1/3/1/8/131856772/3910992.pdf
- http://files.tranceformerstraining.co.uk/uploads/1/3/1/3/131379828/e2b187ac89.pdf
- http://xututokof.theguppygulch.com/uploads/1/3/2/7/132740978/pugejizosovewibolo.pdf
- http://files.yashbangera.com/uploads/1/3/0/7/130738625/83486b04a35.pdf
- https://cdn.shopify.com/s/files/1/0440/0313/1542/files/modular_belt_conveyor.pdf
- https://cdn.shopify.com/s/files/1/0439/8533/8526/files/carmina_burana_percussion_score.pdf
- https://cdn.shopify.com/s/files/1/0437/8607/6309/files/68778754303.pdf
- https://cdn.shopify.com/s/files/1/0440/0722/7542/files/70999825950.pdf
- https://cdn.shopify.com/s/files/1/0435/3507/3440/files/wurofux.pdf
- https://cdn.shopify.com/s/files/1/0434/0894/9409/files/exercicios_botanica_projeto_medicina.pdf
- https://cdn.shopify.com/s/files/1/0430/1789/6089/files/82723381249.pdf
- https://cdn.shopify.com/s/files/1/0433/5091/7269/files/96129988327.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000055ec.bin1d39baf6ad0994b4e6b3c4468f5514e14a3003216bebd177265e3afd79907467 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x55EC | 11824 bytes |
font_01_sfnt_off00007c5b.binb66effb6a4c04eb2eaa7a1fdc006464e98e674c995b81b24e90a58b179faafc6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C5B | 4692 bytes |
font_02_sfnt_off00008c54.bin9787990fb163dc2dfba3c999fdfacc72052796a09e5f0d4841d379b2f8ced6f8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8C54 | 16036 bytes |
font_03_sfnt_off0000be36.bina542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBE36 | 4324 bytes |
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