MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'Chopin piano nocturne pdf', suggesting a lure. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy, likely to improve SEO for malicious content. The ML classifier also strongly flagged this PDF as malicious.
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/wb?keyword=chopin%20piano%20nocturne%20pdf In PDF document text
- http://files.midwifemaddy.com/uploads/1/3/1/3/131380612/2f8bdde3.pdfIn PDF document text
- http://files.williamsburgrec.com/uploads/1/3/2/6/132682745/tagogumolizim_fofuzipupi.pdfIn PDF document text
- http://files.northwesthorsesupplement.com/uploads/1/3/1/3/131379680/baveso-sobozizoburonig.pdfIn PDF document text
- http://files.walkingstick.org/uploads/1/3/1/3/131381640/ea5acf.pdfIn PDF document text
- http://files.cnpstudiotour.ca/uploads/1/3/1/4/131409761/pegofuguzojapavotul.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/1/0430/9434/3829/files/49448503160.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4475/5866/files/sitonaro.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4355/2416/files/kamaposemulegup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1682/2692/files/zabop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1243/1776/files/66513292259.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5891/2662/files/lizupilojexivavo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/14981909947.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7409/2196/files/nuzipa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0944/0935/files/96625791836.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8099/1388/files/niwefe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5064/7202/files/8086331280.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9926/8003/files/legewimidupi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9971/6770/files/guveremosabupozotegifap.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_off0000701f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x701F | 4940 bytes |
SHA-256: 34e79c9d1b97790bb7caeb40a6de79eafa85252cc0c6a521281e1faed906e031 |
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font_01_sfnt_off000080de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x80DE | 10260 bytes |
SHA-256: 42e4376e29301d09d926ebecb84092fa1c921d541b565d06b903a95bd5a4291c |
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font_02_sfnt_off0000a42c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA42C | 16120 bytes |
SHA-256: 67892196bf5908ec3e282366dec55eadd47d8d0e50ed27c9edd305c7b85f0b0b |
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