MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file 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 'easy disney piano sheet music' and the malicious URL, suggesting a lure for users seeking free content. The presence of multiple external PDF links, many pointing to Shopify, indicates a link farm strategy to improve search engine ranking and distribute the malicious payload. The ML classifier strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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/wix?keyword=easy+disney+piano+sheet+music
- https://cdn.shopify.com/s/files/1/0439/5086/6590/files/45140349245.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jobevemavesofidubuxiwi.pdf
- https://cdn.shopify.com/s/files/1/0428/9455/7350/files/47595396856.pdf
- https://cdn.shopify.com/s/files/1/0433/5396/4712/files/rocas_sedimentarias_quimicas_pdf.pdf
- https://cdn.shopify.com/s/files/1/0437/5838/7349/files/83403162755.pdf
- https://static.usrfiles.com/ugd/b8c837_b6749ae73bce4fd8b2c312012ea23b8c.pdf
- https://static.usrfiles.com/ugd/bfbc46_6c1279a265a3494293599a27b065b405.pdf
- https://static.usrfiles.com/ugd/b8c837_8ffb51f4d6df4c81883c0a56039f58f7.pdf
- https://static.usrfiles.com/ugd/c1108c_26ddc8ca5de34184be56bb8e2247381f.pdf
- https://cdn.shopify.com/s/files/1/0429/6992/3740/files/gesaxelibij.pdf
- https://cdn.shopify.com/s/files/1/0438/4771/2928/files/madden_nfl_19_ultimate_team_guide.pdf
- https://cdn.shopify.com/s/files/1/0435/3068/2519/files/majarogavogevebez.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007865.bin8dba3ecca4f5885ba430ee9683a5e9ca9f7df4d24738792cb81f3c7ec1a618a4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7865 | 5244 bytes |
font_01_sfnt_off00008a19.bin18b5ada5af750e7a66f162e2409131b6006a0f61ff3c5dd4d7037577fcea26a6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A19 | 14920 bytes |
font_02_sfnt_off0000b9b7.bin1d4ebd634e9a4b1afc3ba2e660f7abdbad7ecfb3c20c2fb0daf688bec4f9a1d5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB9B7 | 16232 bytes |
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