MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
This PDF document is classified as malicious due to its extensive use of embedded links. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates that at least one link points to known malicious redirector infrastructure, specifically 'https://ttraff.me/wix?keyword=chordate+zoology+pdf+free'. Furthermore, the PDF_SEO_LINK_FARM heuristic reveals a large collection of external PDF links, suggesting a coordinated effort to distribute malicious content or engage in SEO manipulation for malicious purposes. The ML_NYX_PDF_MALICIOUS model also strongly supports the malicious classification.
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.me/wix?keyword=chordate+zoology+pdf+free
- https://static.usrfiles.com/ugd/b47706_86bfbcb012b047c8be9b56bdc4d0713a.pdf
- https://static.usrfiles.com/ugd/b8c837_8d6882410fd848d0a33e1b415cfd021a.pdf
- https://static.usrfiles.com/ugd/ce0e6d_f73386db870545829e5ed99a58908c41.pdf
- https://static.usrfiles.com/ugd/86319b_10674f90dbe74cc58f27be89066af616.pdf
- https://static.usrfiles.com/ugd/b8c837_65823cc4e8fc42bdb755d0bc994de157.pdf
- https://cdn.shopify.com/s/files/1/0441/0540/0472/files/chemistry_a_molecular_approach_3rd_edition_download.pdf
- https://cdn.shopify.com/s/files/1/0434/3876/8294/files/cat_sound_audio.pdf
- https://cdn.shopify.com/s/files/1/0432/6536/0034/files/16687455421.pdf
- https://cdn.shopify.com/s/files/1/0440/1122/5246/files/positive_personality_adjectives_list.pdf
- https://cdn.shopify.com/s/files/1/0430/5806/9655/files/fagofovotabofare.pdf
- https://static.usrfiles.com/ugd/221f3a_95baa71004aa4adcba77ef5ad01946bc.pdf
- https://static.usrfiles.com/ugd/3a38e0_cf8695666c93406b82de8993b86c6b64.pdf
- https://static.usrfiles.com/ugd/5438e3_b77eb8ea75b04ebcb6d1a78b258fa87c.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_off000048f6.binc5b610caf2d6e985ba6106b82043c85c157ed99eb93d873cf6afb45234890842 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x48F6 | 5180 bytes |
font_01_sfnt_off00005a9e.binb92d77a2d9678c7c1609daad05c754c0c9163943a721e9fc0f7f83416f104304 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A9E | 9964 bytes |
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