MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many of which point to SEO-optimized PDF files hosted on static.usrfiles.com. One of these links, however, redirects to a known malicious URL (ttraff.link). This suggests a link farm designed to lure users to malicious content, potentially for phishing or malware distribution.
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.link/wix?keyword=square+root+calculator+in+radical+form
- https://static.usrfiles.com/ugd/b3bc21_8d288000119d46df9b717aebfa07b47a.pdf
- https://static.usrfiles.com/ugd/c2bf0a_701d4fca165d46529ea0b8b2154cd1d2.pdf
- https://static.usrfiles.com/ugd/6c98bc_f28bbe5283a64254923bc269012c9e89.pdf
- https://static.usrfiles.com/ugd/c1c462_87648fcfdc664748ba382d03850a8d58.pdf
- https://static.usrfiles.com/ugd/158fb9_c988fb501bc948a2b4e3f91d60421ac7.pdf
- https://static.usrfiles.com/ugd/787b0a_28321569f66a4c72accf913e39209cd0.pdf
- https://static.usrfiles.com/ugd/c3548c_7909e219b0784103a77d445998ab73db.pdf
- https://static.usrfiles.com/ugd/05301a_764730906a8d4bf29c334dabcd4f3e8b.pdf
- https://static.usrfiles.com/ugd/599f1c_28087596bb4a4f33bc0b684b03ea8285.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/52876055892.pdf
- https://cdn.shopify.com/s/files/1/0430/8592/2466/files/bitax.pdf
- https://cdn.shopify.com/s/files/1/0437/7001/9994/files/azamgarh_map.pdf
- https://cdn.shopify.com/s/files/1/0431/7206/9525/files/medela_flange_fitting_guide.pdf
- https://cdn.shopify.com/s/files/1/0433/1284/0862/files/a_woman_scorned_quote.pdf
- https://cdn.shopify.com/s/files/1/0428/0667/3574/files/6132408921.pdf
- https://cdn.shopify.com/s/files/1/0437/9561/1809/files/bricks_n_balls_game.pdf
- https://cdn.shopify.com/s/files/1/0432/0637/7632/files/betelufubikezuxe.pdf
- https://cdn.shopify.com/s/files/1/0432/1483/1780/files/jifuxojuxenabitus.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_off0000694d.bin0a8a6365c1d90db39467fb2070c42cd1ded2719d4db920750342ebe120415bab |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x694D | 5220 bytes |
font_01_sfnt_off00007af9.bin9be4559a66aeeca1c0222e989d388a8f9751f1c29744ab7065b0bd612acecfee |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7AF9 | 10388 bytes |
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