MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, includes the same URL and references a piano sheet, suggesting a lure to disguise malicious intent. The ML classifier also strongly indicated maliciousness, supporting the conclusion that this file is part of a link farm designed to distribute malware or conduct phishing.
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=flying+without+wings+piano+sheet
- http://sebibata.northcobbphotoclub.com/uploads/1/3/2/6/132696056/wuxunipeto.pdf
- http://files.artpourparties.com/uploads/1/3/1/3/131384113/mekoxok.pdf
- http://nukufo.olddutchflavor.com/uploads/1/3/1/3/131381428/fugenubazexe.pdf
- http://files.billsnydersfire.com/uploads/1/3/2/6/132695492/tarefekotemamagowiv.pdf
- http://files.redbloomyoga.com/uploads/1/3/2/3/132303219/tudojubusibolus.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0434/0023/3112/files/kekaxobudipunimipoxi.pdf
- https://cdn.shopify.com/s/files/1/0438/6127/8885/files/blob._io_mod_apk.pdf
- https://cdn.shopify.com/s/files/1/0430/5590/6970/files/mibivofosemijipawetolozov.pdf
- https://cdn.shopify.com/s/files/1/0440/6640/6550/files/91131483872.pdf
- https://cdn.shopify.com/s/files/1/0437/3191/0821/files/44499744250.pdf
- https://cdn.shopify.com/s/files/1/0432/2554/6912/files/buwibevolakebutuliba.pdf
- https://cdn.shopify.com/s/files/1/0431/5820/8672/files/alexis_texas_massage.pdf
- https://cdn.shopify.com/s/files/1/0434/5564/3813/files/gegaxudanifox.pdf
- https://cdn.shopify.com/s/files/1/0433/7077/4679/files/canadian_economic_history.pdf
- https://cdn.shopify.com/s/files/1/0434/4188/1254/files/caballo_de_troya_4_jj_benitez.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004377.bin85d41b8b6550fdea2aef34db5392f69efa6652b3d64a51b010662cea3fae88c7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4377 | 5136 bytes |
font_01_sfnt_off00005508.bin342eec4db740336be600ba8c313f099e4e40789300ba7009f36899444e95206c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5508 | 9908 bytes |
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