MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO poisoning. One critical heuristic identified a direct link to a known malicious redirector, ttraff.com, which is used to obscure the final destination. The document body contains text related to sheet music and a call-to-action phrase, reinforcing the lure.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=very+easy+piano+christmas+sheet+music+free In PDF document text
- http://files.smyrnafoundation.com/uploads/1/3/1/1/131163613/ac256f1.pdfIn PDF document text
- http://files.accessyourhearing.com/uploads/1/3/1/8/131857284/c183d1b940ce600.pdfIn PDF document text
- http://feduva.amhuff.com/uploads/1/3/0/9/130969916/tezalo.pdfIn PDF document text
- http://norododom.rdpresets.com/uploads/1/3/1/4/131407406/xekenod_gasab.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/1/0427/4031/8375/files/dunijazoxakuzibodexafu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9538/3446/files/89859250373.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8526/7097/files/transplante_de_celulas_tronco_hematopoeticas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2702/1480/files/51970219901.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8056/4392/files/holy_bible_kjv_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9266/3702/files/3893534999.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2001/0140/files/one_piece_streaming_english_subbed.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6063/3504/files/8598099714.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5095/0041/files/nuvorujubuvisitiru.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0744/1053/files/vewovixurezokexuwuw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9813/5966/files/77735118949.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2045/1997/files/wesofe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9316/4199/files/5788593743.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_off000048ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x48CA | 5288 bytes |
SHA-256: 428e2753fa8bf19aef8c8c429e468bf388d8e5e52a783ff825c55512b8fcec9c |
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font_01_sfnt_off00005aa8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5AA8 | 9204 bytes |
SHA-256: 081794dd5a01d5ad57d06aff977592e61bfacc3887210671831c953c538b723d |
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