MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains embedded links, with one specifically pointing to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'jingle bells piano music sheet pdf', suggesting a lure to disguise the malicious intent. The presence of a large number of external PDF links, many hosted on Shopify, further indicates a link farm or SEO poisoning tactic to attract victims. 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.com/pify?keyword=jingle+bells+piano+music+sheet+pdf
- https://cdn.shopify.com/s/files/1/0437/4436/2647/files/infosys_reading_comprehension_questions_and_answers.pdf
- https://cdn.shopify.com/s/files/1/0435/1908/2651/files/apc_back_ups_pro_1000_manual.pdf
- https://cdn.shopify.com/s/files/1/0433/9538/3461/files/61256706387.pdf
- https://cdn.shopify.com/s/files/1/0434/6914/4230/files/gajunelapekamimowozara.pdf
- https://cdn.shopify.com/s/files/1/0429/2821/0086/files/36649005827.pdf
- https://cdn.shopify.com/s/files/1/0433/0432/1177/files/94323830603.pdf
- https://cdn.shopify.com/s/files/1/0437/0956/3045/files/us_passport_application_form.pdf
- https://cdn.shopify.com/s/files/1/0431/3235/4727/files/tutorial_of_java.pdf
- https://cdn.shopify.com/s/files/1/0439/3952/8872/files/south_african_constitution_of_1961.pdf
- https://cdn.shopify.com/s/files/1/0433/4754/2175/files/62926101502.pdf
- https://static.usrfiles.com/ugd/9c0842_8ca892ae7993460a94d96e7d99466561.pdf
- https://static.usrfiles.com/ugd/b8c837_56c778c42d384d11aaec11678f32ac8f.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_off00007632.bin3d7392c3cbca62e7768dfdade906ad55a8337180520b910bfc4c4e5d66a84e78 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7632 | 5600 bytes |
font_01_sfnt_off00008912.bin36d8fc463e94c3cd583f6ab8f005de2b78f1341806b9750da27a5128bdba9473 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8912 | 15108 bytes |
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