MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The document body, though heavily obfuscated, suggests a lure related to an economics course. The presence of numerous external PDF links, many hosted on Shopify, further supports a link farm or redirection strategy. No scripts were extracted, but the primary malicious behavior is the redirection via the embedded link.
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=curso+de+econom%25C3%25ADa+de+la+empresa.+introducci%25C3%25B3n+2020+pdf
- http://files.atohmit.org/uploads/1/3/1/6/131636728/toxerij_dipotunobiwo_jobuxedewisilu.pdf
- http://files.houseremodelingsolutions.com/uploads/1/3/0/7/130776590/4743540.pdf
- http://files.macdonaldcounselling.com/uploads/1/3/1/6/131636890/dededixubi.pdf
- http://files.rotarysanjuanbautista.com/uploads/1/3/2/6/132680922/146664.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/2936/4885/files/vewobisapowodur.pdf
- https://cdn.shopify.com/s/files/1/0430/2969/2577/files/zuramaxuradimotawasuvil.pdf
- https://cdn.shopify.com/s/files/1/0431/1734/6965/files/pesag.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42539854631.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mafimovudowejiner.pdf
- https://cdn.shopify.com/s/files/1/0431/8032/7070/files/20296967370.pdf
- https://cdn.shopify.com/s/files/1/0432/4740/3168/files/sovonatunesib.pdf
- https://cdn.shopify.com/s/files/1/0428/8207/2732/files/xogukufijewidega.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zixetirubopejama.pdf
- https://cdn.shopify.com/s/files/1/0432/0028/2783/files/30604522213.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_off00007977.bin80557a69bc1fbf58a8413b575689bc066fd50361167359911b01b37f296b1a02 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7977 | 5700 bytes |
font_01_sfnt_off00008c80.binbfe6a5f21e02914735320f7a54d27e8d6f0e082195829f93c75da0b1d70cc05c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8C80 | 11120 bytes |
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