MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links that redirect to a malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body text, though heavily obfuscated, contains keywords related to software downloads, suggesting a lure to trick users into clicking the malicious link. The ML_NYX_PDF_MALICIOUS heuristic further supports the malicious nature of the file. The primary IOC is the redirector URL used in the lure.
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=net+framework+3.+5++windows+7+x32
- https://static.usrfiles.com/ugd/b8c837_2fd0a6254a624316afc839a0cfb07ffb.pdf
- https://static.usrfiles.com/ugd/f65518_906605c54b1c4781967992a7ccae6364.pdf
- https://static.usrfiles.com/ugd/b8c837_39b8b4365f7e4d7295fc93e10f219f40.pdf
- https://static.usrfiles.com/ugd/5ad03d_3a88c95e2f1d47ca89272dd8dedfa971.pdf
- https://cdn.shopify.com/s/files/1/0434/1478/2103/files/95051446833.pdf
- https://cdn.shopify.com/s/files/1/0437/7578/7157/files/gikerofivaf.pdf
- https://cdn.shopify.com/s/files/1/0434/4122/5880/files/91683647616.pdf
- https://cdn.shopify.com/s/files/1/0432/7643/5621/files/aquaterra_hot_tub_manual.pdf
- https://cdn.shopify.com/s/files/1/0463/2435/1131/files/solving_quadratic_equations_by_graphing_worksheet_kuta.pdf
- https://cdn.shopify.com/s/files/1/0427/9818/6663/files/38189140109.pdf
- https://cdn.shopify.com/s/files/1/0434/7750/0057/files/88561832049.pdf
- https://cdn.shopify.com/s/files/1/0430/3467/3301/files/matelikisebunanekalog.pdf
- https://cdn.shopify.com/s/files/1/0432/1830/5179/files/gefupikaj.pdf
- https://cdn.shopify.com/s/files/1/0437/6107/4337/files/pafef.pdf
- https://cdn.shopify.com/s/files/1/0433/1218/5499/files/27495291253.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_off00004b8e.bin220f5c417de88133a63c892a3a971d51d13172accb62a7ada284edaadd51a66f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4B8E | 5748 bytes |
font_01_sfnt_off00005f40.bin26b2e149918d67a853c8d38738181281269e446ccdd82049fca4fb003a03940b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F40 | 9732 bytes |
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