MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link disguised as a piano music sheet, which redirects to a malicious domain. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this redirection to a known malicious site. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, suggesting a spam or phishing campaign. 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/wb?keyword=piano%20music%20sheet%20for%20beginners%20pdf In PDF document text
- http://kamat.orlove.co/uploads/1/3/1/6/131636725/pagusisaratokarizab.pdfIn PDF document text
- http://files.goorooglass.com/uploads/1/3/1/6/131636625/misepopowoj-bikivajetoguw-sinix-tifiwudepima.pdfIn PDF document text
- http://jugureni.sukhikitchen.com/uploads/1/3/2/8/132815028/1be40f.pdfIn PDF document text
- http://files.globalexplorertravel.com/uploads/1/3/2/8/132815123/ee99a84d3c1d3.pdfIn PDF document text
- http://files.dcmengineer.com/uploads/1/3/1/3/131380845/11faae8b.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/1/0438/6763/5867/files/34672868579.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3699/9842/files/sorutijodiwoxu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0451/0390/6969/files/72658140843.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5036/0232/files/macys_day_parade_lyric.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1856/6306/files/zovikenuzonobuv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6705/7063/files/tomobizitebedibo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8958/3514/files/jenadugegazuxurilevudo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7712/4764/files/tujegokivudimak.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2925/0719/files/tuvawoditibomuxedawomebux.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5198/3772/files/94644968537.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8043/3302/files/71897399780.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3531/1775/files/xanofudelab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4306/9845/files/pdf_file_unlock.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4104/6171/files/gezasixof.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dd4b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD4B | 5676 bytes |
SHA-256: 58bcfafb5248511bc9471b401d240f74fabfa979fe1cdefd9bcf8fb6fd8f14e7 |
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font_01_sfnt_off0000f05c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF05C | 11000 bytes |
SHA-256: 1cef5f1c55a21af47dbb89245e293f8393e43c6cac831fe9b913780d9205c3ee |
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