MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. The document body, though partially corrupted, contains the URL https://ttraff.me/wix?keyword=cambridge+key+english+test+1+with+answers, which is also listed as a malicious redirector. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, suggesting a broad distribution or SEO poisoning tactic.
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=cambridge+key+english+test+1+with+answers
- https://static.usrfiles.com/ugd/b8c837_71205bbc53eb4b099c60c9424b31e795.pdf
- https://static.usrfiles.com/ugd/bfbc46_5f8b638ab5d845329bd1afb09d1642bd.pdf
- https://static.usrfiles.com/ugd/90c678_fa4f1c2937fe47d5b40d4757d4b3d1ba.pdf
- https://static.usrfiles.com/ugd/b8c837_a6b1f197b51947cfb8d0d19ce9cda23c.pdf
- https://static.usrfiles.com/ugd/158fb9_cb5ad3048ffd42c69f2cd383ee878323.pdf
- https://static.usrfiles.com/ugd/b8c837_d70c5c6f37024ce0901cfea14c0efcb7.pdf
- https://static.usrfiles.com/ugd/299074_d83daa4e0daf4a8084c09a442d45d2ca.pdf
- https://static.usrfiles.com/ugd/764aaa_ff52813501cc4c6a928e66f3ffafc615.pdf
- https://cdn.shopify.com/s/files/1/0430/9165/6855/files/bsnl_tele_phone_directory.pdf
- https://cdn.shopify.com/s/files/1/0438/0337/7826/files/mastering_biology_chapter_2.pdf
- https://cdn.shopify.com/s/files/1/0433/6697/3589/files/44966324374.pdf
- https://cdn.shopify.com/s/files/1/0434/5551/2738/files/nuvasikivilupakurisosipa.pdf
- https://cdn.shopify.com/s/files/1/0431/3733/5464/files/39972189364.pdf
- https://cdn.shopify.com/s/files/1/0431/1033/4620/files/10226978935.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_off000053eb.bin5a5e1abc2f4ebe130fe324f7b8cd635a5be84fe92bbcbfae36569622c1eb2ac9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x53EB | 5596 bytes |
font_01_sfnt_off000066d6.bind20f07961882d1653290513dea918d6d3f224784bee424bcd031424e447b58bf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66D6 | 10080 bytes |
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