MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a significant number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains text related to academic books and the malicious URL, suggesting a lure to trick users into visiting the redirector. The ML classifier also strongly indicated maliciousness.
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=developmental+biology+gilbert+12th+edition+pdf
- https://cdn.shopify.com/s/files/1/0433/7152/8344/files/collating_reports_definition.pdf
- https://cdn.shopify.com/s/files/1/0447/6986/9975/files/skyrim_ctd_fix.pdf
- https://cdn.shopify.com/s/files/1/0431/3199/4280/files/algebra_nation_practice_book_answer_key_section_2.pdf
- https://cdn.shopify.com/s/files/1/0434/8080/9622/files/48931605844.pdf
- https://static.usrfiles.com/ugd/93c935_ea956ea622e44abea714528f04043183.pdf
- https://static.usrfiles.com/ugd/b8c837_4a55b82ce3a84c6fac59833af00e8dda.pdf
- https://static.usrfiles.com/ugd/b8c837_91436a01911e49eab3aeec83c749f18e.pdf
- https://static.usrfiles.com/ugd/b8c837_da2133d936164a218f79a8d2f4a3d882.pdf
- https://static.usrfiles.com/ugd/97634b_d1f45168a58642a6837523978047c3c2.pdf
- https://cdn.shopify.com/s/files/1/0433/4954/1013/files/astrochemistry_book.pdf
- https://cdn.shopify.com/s/files/1/0434/1959/9004/files/cheppave_chirugali_audio_songs_coming.pdf
- https://cdn.shopify.com/s/files/1/0436/3704/7449/files/wujujasij.pdf
- https://cdn.shopify.com/s/files/1/0432/7201/1932/files/niwibibinogesimor.pdf
- https://static.usrfiles.com/ugd/e73fea_5cc1215547754d06ac50c9e4ca3df365.pdf
- https://static.usrfiles.com/ugd/b8c837_d349c48c4b87436dbe84a3b9d143293c.pdf
- https://static.usrfiles.com/ugd/b8c837_375c03069b3d4bc0bc11542149eb8ceb.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_off000056cf.binf48242629f107c1c8e4934f85a88038d4279578a925eddd8d382b7c239a181c2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x56CF | 5764 bytes |
font_01_sfnt_off00006a4d.bindbe09d364c1420efc71042afcd4edd20c77391fa61cd770c0b85f94753f16936 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A4D | 10100 bytes |
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