MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.me/wix?keyword=avastin+dosage+form'. This indicates the document's primary purpose is to redirect the user to a malicious site. The presence of a large number of external PDF links, many hosted on 'static.usrfiles.com', suggests a link farm or SEO poisoning tactic to improve search engine ranking for malicious content. The ML classifier also strongly flagged this PDF as malicious.
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=avastin+dosage+form
- https://static.usrfiles.com/ugd/113e89_7300269032e74134a2628eae2e4f24ad.pdf
- https://static.usrfiles.com/ugd/b8c837_8f15cece40b245d68ae428b28317248d.pdf
- https://static.usrfiles.com/ugd/b0cd75_319f39728bf34dfba6399962880b8f30.pdf
- https://static.usrfiles.com/ugd/b444d4_c7d80b9078e3480da8b57e4c9beeb7e6.pdf
- https://static.usrfiles.com/ugd/f967ac_1a9f03b16560413aa41c77654511eb3a.pdf
- https://static.usrfiles.com/ugd/b8c837_a98d07a1afca46ea9badc44f6f3226de.pdf
- https://static.usrfiles.com/ugd/55f640_dd05562fe99a4ab9a5078ca428c616cf.pdf
- https://static.usrfiles.com/ugd/b8c837_39e6caa1872b43a28dbce8683b806f40.pdf
- https://static.usrfiles.com/ugd/9219f8_94881bae38c64de8b9e127c88ced551d.pdf
- https://static.usrfiles.com/ugd/7e0eb0_073efdfb220c4983b33ee0228f995f6b.pdf
- https://static.usrfiles.com/ugd/b8c837_d4aac4e09dbb4fc398a346db2721d83f.pdf
- https://static.usrfiles.com/ugd/3c9ac1_20904074c4964a338e7d9c2f9ed5fb03.pdf
- https://static.usrfiles.com/ugd/b8c837_912569e4c4bb43e8b098a71aeca5d8d9.pdf
- https://static.usrfiles.com/ugd/8b97dd_1f5b4121ddb3433abbb02d3bd0c26d28.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_off000093cd.bin9696e41174c70867f34869c71889210ad32746552e52203c700715c18d068aa0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x93CD | 5244 bytes |
font_01_sfnt_off0000a59b.bin4c9071a89fc09f091e570bcdb6081e2c129e1abdadde9c2b62104022b995dd7a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA59B | 10360 bytes |
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