MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm or SEO poisoning attempt. One critical heuristic identified a link to known malicious redirector infrastructure, specifically 'https://ttraff.cc/pify?keyword=cambridge+ielts+listening+test+3+with+answers'. The document body, though heavily obfuscated, contains this same URL, indicating a likely attempt to redirect users to malicious content under the guise of educational material.
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.cc/pify?keyword=cambridge+ielts+listening+test+3+with+answers
- http://files.sanabriaphotography.com/uploads/1/3/0/8/130813859/jutasujumiru_zibox.pdf
- http://files.warrenplainsbaptist.org/uploads/1/3/0/7/130776739/nusapajoguli.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0437/2873/2314/files/tuzopuvefuka.pdf
- https://cdn.shopify.com/s/files/1/0429/0120/9251/files/zorobuwewudizaduzevebon.pdf
- https://cdn.shopify.com/s/files/1/0434/3929/2577/files/migirejanibi.pdf
- https://cdn.shopify.com/s/files/1/0431/5414/5444/files/97077455747.pdf
- https://cdn.shopify.com/s/files/1/0437/6156/5850/files/76189793095.pdf
- https://cdn.shopify.com/s/files/1/0432/1358/6596/files/66065699423.pdf
- https://cdn.shopify.com/s/files/1/0428/9468/8419/files/solve_quadratic_equation_worksheet.pdf
- https://cdn.shopify.com/s/files/1/0451/2251/9205/files/panduan_belajar_bahasa_mandarin.pdf
- https://cdn.shopify.com/s/files/1/0429/7896/7703/files/59117669243.pdf
- https://cdn.shopify.com/s/files/1/0431/2861/9168/files/dupoterugenojor.pdf
- https://cdn.shopify.com/s/files/1/0431/6571/2535/files/cracked_mac_apps.pdf
- https://cdn.shopify.com/s/files/1/0431/0489/5143/files/82854393796.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005c16.binaf43cb3f13933f832ecf7296afa1bf5e6b3faa0a10f3bbbe94ca9bc11a321dee |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C16 | 5540 bytes |
font_01_sfnt_off00006ece.bine77306e4736cc8500f56220b2910b792c0a2ecd91716af774282d0556035fa19 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6ECE | 14616 bytes |
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