MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, including one to a known malicious redirector, suggesting an attempt to drive traffic to malicious sites. The document body, though heavily obfuscated, contains references to a guitar duet PDF and URLs that appear to be part of an SEO link farm, indicating a likely SEO poisoning or phishing campaign. 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=blackbird+guitar+duet+pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0434/8755/9833/files/design_of_beams_and_columns.pdf
- https://cdn.shopify.com/s/files/1/0430/0279/0039/files/bufine.pdf
- https://cdn.shopify.com/s/files/1/0431/5083/5876/files/juvuwemedifok.pdf
- https://static.usrfiles.com/ugd/2d1648_0f9fc5e3a5f84ee098f6ea77a0216e4d.pdf
- https://static.usrfiles.com/ugd/f0e51d_4ba2851dbedc44b18c132d592474b427.pdf
- https://static.usrfiles.com/ugd/d78803_28c3a9aaf1894ac89d8ba54465b4b6a6.pdf
- https://static.usrfiles.com/ugd/df4650_f4dbdf6273f842a4846d0f6871864ecb.pdf
- https://static.usrfiles.com/ugd/b8c837_a0f184f9bf4349768a38ab38577e1672.pdf
- https://static.usrfiles.com/ugd/850f07_5698864ec3af4dcb9315236ec5cbd759.pdf
- https://static.usrfiles.com/ugd/a382ee_b2f7a362785841689aed43d43e5324b8.pdf
- https://static.usrfiles.com/ugd/b8c837_32fe25f75ec94347bb927212096f365a.pdf
- https://static.usrfiles.com/ugd/4dded2_a8a57774c8734339a2485969f4af4aa0.pdf
- https://static.usrfiles.com/ugd/f59309_72a4675405d245618bd5021541402bf4.pdf
- https://static.usrfiles.com/ugd/7d21c0_99593bbbc6ac448099fab678f5586c70.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000076ce.binace29296fced5f6fba5c8184f1329cd42c63b84bf50f8b03f85fc6c8fa7c3753 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76CE | 5400 bytes |
font_01_sfnt_off00008937.binddf1692d8bf111988a21cf03e1a65e9832fb2acc9480de8b6d6420b2d0616b0a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8937 | 14928 bytes |
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