MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a prominent link to a known malicious redirector, 'https://ttraff.cc/wix?keyword=music+theory+for+computer+musicians', disguised within content that appears to be educational material. This suggests a phishing or social engineering attack aimed at directing users to malicious infrastructure. The presence of numerous other PDF links, many hosted on Shopify, further indicates a link farm or content-luring strategy.
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=music+theory+for+computer+musicians
- https://static.usrfiles.com/ugd/b8c837_b56ac838de1e45c4aa4b3ce74cbf2cae.pdf
- https://static.usrfiles.com/ugd/5bb01c_c81eca78699547dea776525015daa82e.pdf
- https://static.usrfiles.com/ugd/b8c837_3e6028287d0e476e80f2e59dde7dd58e.pdf
- https://cdn.shopify.com/s/files/1/0431/8930/5501/files/a2_b1_english_test_with_answers.pdf
- https://cdn.shopify.com/s/files/1/0428/7925/4694/files/nejuvitepo.pdf
- https://cdn.shopify.com/s/files/1/0436/9691/4600/files/42417705357.pdf
- https://cdn.shopify.com/s/files/1/0438/2484/0861/files/xunuwaxizexeb.pdf
- https://cdn.shopify.com/s/files/1/0440/7033/8725/files/miputawixobegevexebosob.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/21883700101.pdf
- https://cdn.shopify.com/s/files/1/0435/1361/0392/files/zetotalefejanonevenixad.pdf
- https://cdn.shopify.com/s/files/1/0433/5108/1118/files/anlaute_bilder.pdf
- https://cdn.shopify.com/s/files/1/0431/8127/7342/files/formato_de_tandas_de_dinero.pdf
- https://cdn.shopify.com/s/files/1/0434/7081/5397/files/28422173957.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_off000064a8.bin65ff3c902dbaa1709d2f39b45ac80ef3063a8e783bb1e1c4b9cf76c61e68cbda |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x64A8 | 5328 bytes |
font_01_sfnt_off000076b4.bin2c851fa40f43ef3fbc064ad029bdf42ca47fabbbe5f68a1c740a760569f8ff4f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76B4 | 10224 bytes |
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