MALICIOUS
152
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, which is also present in the document body. This link, 'https://ttraff.link/wix?keyword=i%2527+m+a+believer+monkees+sheet+music', is presented in the context of sheet music, suggesting a social engineering lure. The document also exhibits characteristics of a PDF link farm, with numerous embedded links, many pointing to Shopify domains, though one specific redirector is flagged as malicious. The ML classifier strongly supports the malicious verdict.
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.link/wix?keyword=i%2527+m+a+believer+monkees+sheet+music
- https://cdn.shopify.com/s/files/1/0436/8669/0969/files/71259572980.pdf
- https://cdn.shopify.com/s/files/1/0436/9815/9769/files/kudaronolebafujulezugopa.pdf
- https://cdn.shopify.com/s/files/1/0440/2266/1278/files/28201906572.pdf
- https://cdn.shopify.com/s/files/1/0432/2004/1886/files/advanced_vlookup_excel_2020.pdf
- https://cdn.shopify.com/s/files/1/0430/5934/7618/files/cold_air_intake_performance_gain.pdf
- https://static.usrfiles.com/ugd/576447_3ac308df74fd49c584785e855e0408f7.pdf
- https://static.usrfiles.com/ugd/a382ee_5c311c2a45624a25a682f61862af7562.pdf
- https://static.usrfiles.com/ugd/d6b5da_87816f35441b4edd9ab542621a95772b.pdf
- https://static.usrfiles.com/ugd/5fd5c1_feb69056b7db4cad9549eda2d7024172.pdf
- https://cdn.shopify.com/s/files/1/0428/5900/4070/files/planning_budgeting_forecasting.pdf
- https://cdn.shopify.com/s/files/1/0429/2132/8807/files/marcelo_quiroga_santa_cruz_los_deshabitados.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004989.binda167bf22aa7bd6e84693f8f7d13a8cde88745e76925916f3d5c08e0377aa993 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4989 | 5272 bytes |
font_01_sfnt_off00005b57.bin7fe611e9dc84cdd9e6998c129dba0f0132e27da8f8b236cd6ea0cb8aa0b07641 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5B57 | 10696 bytes |
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