MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many of which point to other PDF files hosted on different domains. This behavior is indicative of a link farm or SEO poisoning attack, designed to drive traffic to malicious or low-reputation sites. While no scripts were explicitly extracted, the PDF structure and the ML classifier strongly suggest malicious intent, likely related to distributing further payloads or engaging in click fraud. The presence of embedded URLs and the PDF_SEO_LINK_FARM heuristic confirm the malicious nature of the document.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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External URI info PDF_URIPDF contains an external URL action
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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 http://unicoiwinetrail.com/uploads/1/3/0/6/130620475/130620475.html#enlace+covalente+definicion+medica
- http://get-out-canada.com/uploads/1/3/0/8/130874012/radimidona.pdf
- http://qtsatelier.com/uploads/1/3/0/6/130639978/pakuzun.pdf
- http://valleystorageandbins.com/uploads/1/3/0/2/130287221/2588047.pdf
- http://digital-aun.com/uploads/1/3/0/3/130379431/7886b4a6546f.pdf
- http://diyouth.org/uploads/1/3/0/5/130551142/limivabafuxes.pdf
- http://outdoorseconds.co.za/uploads/1/3/0/7/130776032/82d16c8b9241.pdf
- http://cfquinnhall.com/uploads/1/3/0/2/130288326/feniwikesim.pdf
- http://myhaydenisland.org/uploads/1/3/0/7/130739069/ruwos.pdf
- http://benwatfordphoto.com/uploads/1/3/0/6/130605355/pexasuz.pdf
- http://www.theseconddeadlysin.com/uploads/1/3/0/7/130740189/3778065.pdf
- http://schoolnutritionmenu.com/uploads/1/3/0/8/130814280/pajopopevufur-juvuwinako-davulunufufar.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- 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/
- https://fedoraproject.org/wiki/Licensing/LiberationFontLicense
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00008135.binca0846f1396af49044ac8e694cfec0cf7fd35654b01bb76aa0a1ef9c95f77d7a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8135 | 9552 bytes |
font_01_sfnt_off0000a324.bin766110d052f759a6119da585a121fee87f7a7a56b0ee10d99c906a536f2cabe0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA324 | 2796 bytes |
font_02_sfnt_off0000ad0e.bin779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD0E | 16036 bytes |
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