MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though heavily obfuscated, contains text suggesting a lure related to sheet music, and the embedded links lead to a large number of PDFs, indicating a link farm for SEO-based phishing. The ML classifier strongly supports the malicious verdict.
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.com/pify?keyword=a+certain+romance+bass+sheet+music In PDF document text
- http://files.marksoftime.com/uploads/1/3/0/7/130739169/60d9c3ac326.pdfIn PDF document text
- http://files.drlaurienavinllc.com/uploads/1/3/1/4/131453255/bfb8a4ae.pdfIn PDF document text
- http://files.circleschools.org/uploads/1/3/0/8/130874522/a229d6639.pdfIn PDF document text
- http://files.kulanuicounseling.com/uploads/1/3/0/9/130969003/4699073.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0433/8014/6343/files/lilolimowigekaro.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2191/0687/files/vejigugifizuturiterox.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0451/0887/files/zivalafusew.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5630/0186/files/wajepexutadesikakesuwex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87277754858.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1644/4315/files/1987_corvette_owners_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4396/2532/files/74755616444.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7658/2552/files/47238554722.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5104/8357/files/radosol.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9316/4199/files/290365087.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8564/3419/files/42900775490.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lomapatigusobotatijizu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7162/5621/files/ambaji_aarti_free_download_in_gujarati_free_download.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006c49.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C49 | 5020 bytes |
SHA-256: 5318f9aff5b118d4999a559741e01e8dce588f623b2c6de212ea1570b6705480 |
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font_01_sfnt_off00007d19.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D19 | 15272 bytes |
SHA-256: b8d96281ffc1ba83d71d704414fd7f95b39bc20e56eb25b873980b4de5febfcb |
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font_02_sfnt_off0000acd2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xACD2 | 16204 bytes |
SHA-256: a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd |
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font_03_sfnt_off0000c1ff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC1FF | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
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