MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure, specifically 'ttraff.club'. Additionally, it contains a large number of embedded links to external PDF files, many hosted on Shopify, which is indicative of a link farm or SEO manipulation tactic. The ML classifier also strongly indicated maliciousness. The primary malicious IOC is the redirector URL.
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.club/wix?keyword=addison-+wesley+chemistry+fourth+edition+pdf
- http://kevan.infocomtech4dev.org/uploads/1/3/1/4/131438577/moxufonovuka-xisexazewaru.pdf
- http://pozirod.winkwinkbeautybar.com/uploads/1/3/1/3/131379730/najolaxixixebax.pdf
- https://cdn.shopify.com/s/files/1/0429/1392/3228/files/nagipiseno.pdf
- https://cdn.shopify.com/s/files/1/0431/1806/7876/files/47888768081.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30549310566.pdf
- https://cdn.shopify.com/s/files/1/0437/0602/4101/files/bash_command_cheat_sheet.pdf
- https://cdn.shopify.com/s/files/1/0459/9267/3437/files/vikolulipuvijidula.pdf
- https://cdn.shopify.com/s/files/1/0431/5476/8021/files/ripiso.pdf
- https://cdn.shopify.com/s/files/1/0440/9645/4808/files/fur_elise_sheet_music_imslp.pdf
- https://static.usrfiles.com/ugd/7d1dc9_b970daaa30854081a577b9518029a2c8.pdf
- https://static.usrfiles.com/ugd/704566_e6377932b48d485499fd137d8eccbf5d.pdf
- https://static.usrfiles.com/ugd/a0d21a_e7ffb6d213ac4e19818cea0bbca43a1c.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_off0000418c.bin4b342a7c902e8773a4596948d0602ca62c0478c809a4491d6a5bf6092bbe90c4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x418C | 5400 bytes |
font_01_sfnt_off000053e5.bind546f17e817d2b9e3557c346c0e6e0d70f4d1a329a669f59c1195076b7175063 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x53E5 | 9588 bytes |
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