MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
This PDF document contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of a link farm or SEO spam campaign. One critical heuristic identified a link to a known malicious redirector at `https://ttraff.com/wix?keyword=a+first+course+in+finite+elements+by`. The document body, though heavily obfuscated, contains similar text, suggesting the primary purpose is to drive traffic to malicious infrastructure.
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/wix?keyword=a+first+course+in+finite+elements+by
- https://cdn.shopify.com/s/files/1/0432/7014/4166/files/9395356799.pdf
- https://cdn.shopify.com/s/files/1/0431/1698/6534/files/sample_graphic_organizer_templates.pdf
- https://cdn.shopify.com/s/files/1/0429/8607/8369/files/97927689252.pdf
- https://cdn.shopify.com/s/files/1/0430/8343/2096/files/60823114120.pdf
- https://static.usrfiles.com/ugd/b8c837_1ca6408e5f9d43868a6ad8bf9fe80e52.pdf
- https://cdn.shopify.com/s/files/1/0436/7794/1913/files/14867177532.pdf
- https://cdn.shopify.com/s/files/1/0434/2104/0789/files/analytical_chemistry_of_foods_james_1995.pdf
- https://cdn.shopify.com/s/files/1/0434/5295/6838/files/bodufabudunezu.pdf
- https://cdn.shopify.com/s/files/1/0428/2672/7580/files/noun_suffixes_exercises_with_answers.pdf
- https://static.usrfiles.com/ugd/67f5f7_3783a7c99633412090ed23ff9aa395d9.pdf
- https://static.usrfiles.com/ugd/b8c837_45bbcf50317944e9922dec9d260c78bc.pdf
- https://static.usrfiles.com/ugd/b8c837_92c89f0ed4484e788e34c4f08e9f3aa5.pdf
- https://static.usrfiles.com/ugd/b8c837_19eb905ce2e84e5c9984de8a8255a2fc.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_off00006327.bind011f9049ce293e2f0937a6b24c6204be94b0fbab5f0b7b47f4e73000acc662e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6327 | 5048 bytes |
font_01_sfnt_off0000743c.bin867308bea7aff615ddc56c367992569bee5259ff0c3b8bfc4ad5fe0a3fe03dcd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x743C | 10052 bytes |
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