MALICIOUS
152
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, pointing to 'https://ttraff.club/wix?keyword=combiner+plusieurs+fichiers+pdf+en+1'. This URL is presented within the document body, disguised as a utility for combining PDF files. The document also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to 'static.usrfiles.com'. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of malicious intent.
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=combiner+plusieurs+fichiers+pdf+en+1
- https://static.usrfiles.com/ugd/837d34_7250b1584c6047bdac5cd1620ad17268.pdf
- https://static.usrfiles.com/ugd/906e9f_debeb10df2e74092ad9b5b28da1f5c5c.pdf
- https://static.usrfiles.com/ugd/b8c837_e9e377371a5b4457b6a196d957fd3a1a.pdf
- https://static.usrfiles.com/ugd/02af14_b37cba5d80214b339b9c00c01fde29d8.pdf
- https://cdn.shopify.com/s/files/1/0430/0954/0257/files/braves_schedule_2020_pdf.pdf
- https://cdn.shopify.com/s/files/1/0430/8870/7738/files/50054471592.pdf
- https://cdn.shopify.com/s/files/1/0439/9228/5342/files/finding_area_irregular_shapes_worksheet.pdf
- https://cdn.shopify.com/s/files/1/0430/0088/9507/files/wanugupobew.pdf
- https://cdn.shopify.com/s/files/1/0435/1148/0472/files/account_notebook.pdf
- https://cdn.shopify.com/s/files/1/0433/9249/9877/files/36520641025.pdf
- https://static.usrfiles.com/ugd/d1d005_b175f75560074057a6b088274508b16e.pdf
- https://static.usrfiles.com/ugd/b8c837_216199422f274026a51ee88479231818.pdf
- https://static.usrfiles.com/ugd/04c368_5d272c5795f7496dae48911ce774011e.pdf
- https://static.usrfiles.com/ugd/b8c837_a64beb263fe24892973674583cd30c27.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_off00006c5d.bin46ca8eec387a482cabed4ebaab4c9334984f1b4d65cdfd45137d44b1d251e2b9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C5D | 5284 bytes |
font_01_sfnt_off00007e20.binb3860265ff195bad29b1e568d1711c3933bca904695b552a9eb71543b2bf434e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7E20 | 11908 bytes |
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