MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'jazz standards piano sheet music pdf' and the malicious URL, suggesting a lure. The presence of multiple unknown URLs hosted on file-sharing domains further supports the malicious intent. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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.cc/pify?keyword=jazz+standards+piano+sheet+music+pdf In PDF document text
- http://files.connectorofpeople.com/uploads/1/3/0/9/130969054/sigenadigazovabip.pdfIn PDF document text
- http://files.cardenhomebuilders.com/uploads/1/3/2/6/132695575/rupexupo.pdfIn PDF document text
- http://files.manisha-sharma.com/uploads/1/3/1/4/131482954/8631d.pdfIn PDF document text
- http://files.thebrooklynbarberacademy.com/uploads/1/3/1/3/131398362/4a55f85be9edc.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5161/3334/files/36277889273.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6463/1195/files/58449443666.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9672/7957/files/wijitipigirumasopudegafu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3630/3782/files/62318344474.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9309/0714/files/21501391261.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5800/4117/files/75419458964.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0423/0805/files/bewasesok.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1104/7575/files/zewivamudokitem.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1243/8685/files/36545687829.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4841/8973/files/votozozefowikakazo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7437/8138/files/fusozimida.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4016/2470/files/siwigaverim.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8584/6933/files/99369697619.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000079a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79A3 | 5404 bytes |
SHA-256: 3194b3e77a0d00ac89e768042b196292835b3952d7a4094c7c310363a50f4a90 |
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font_01_sfnt_off00008be6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8BE6 | 10428 bytes |
SHA-256: 654df1e4293b35cd0b12eb04a03f3108ed807d80db28c3f4b53941be4fea5378 |
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font_02_sfnt_off0000afbd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAFBD | 16100 bytes |
SHA-256: 84650fe671c70ac66f3af0994468c9b9feb42d01905b0f030d5781e095ef8e52 |
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