Malware Insights
The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains references to URLs, including http://escorti-milano.com/uploads/1/3/0/6/130604445/130604445.html#trabajo+final+conformado+de+materiales+upiicsa, suggesting a lure to external content. The primary attack pattern appears to be a link farm designed to manipulate search engine results or direct users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
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://escorti-milano.com/uploads/1/3/0/6/130604445/130604445.html#trabajo+final+conformado+de+materiales+upiicsa PDF link annotation
- http://buildonyourlandllc.net/uploads/1/3/0/8/130813658/8436085.pdfIn PDF document text
- http://wagner2003.com/uploads/1/3/0/5/130539678/7051059.pdfIn PDF document text
- http://iraqueer.org/uploads/1/3/0/3/130313035/waxaxozo_xijelaxuloxama_wifuruvalozev_daxoxuxusesif.pdfIn PDF document text
- http://tattoovictoriatexas.com/uploads/1/3/0/4/130489240/tezunizoze_nibineterobe_zetibenokejuxor_dujokimifib.pdfIn PDF document text
- http://www.planetstompers.org/uploads/1/3/0/6/130639643/fe40e0fad.pdfIn PDF document text
- http://mommyslittlewonders.com/uploads/1/3/0/6/130604069/2950288.pdfIn PDF document text
- http://dsn-122.com/uploads/1/3/0/7/130776649/joxugemadevukowurigi.pdfIn PDF document text
- http://eshadeshpande.com/uploads/1/3/0/6/130621918/9346136.pdfIn PDF document text
- http://www.drtrentonjohns.com/uploads/1/3/0/6/130621790/eb62efc1.pdfIn PDF document text
- http://www.mmacrashcourse.com/uploads/1/3/0/8/130874612/katagitaseze.pdfIn PDF document text
- http://molliemoptoppers.com/uploads/1/3/0/4/130476143/bikeboguwur_rotodoredow.pdfIn PDF document text
- http://brightleafadv.com/uploads/1/3/0/3/130379061/vurefafu.pdfIn PDF document text
- http://www.juneoros.com/uploads/1/3/0/5/130538869/lawiwifunuwi-ruturibejovemud-nasad.pdfIn PDF document text
- http://tp4seniors.ca/uploads/1/3/0/6/130621552/kejigeboxirefa_nixetagojomak_kafejoguwaxij_vozemi.pdfIn PDF document text
- http://www.mackprobuilding.com/uploads/1/3/1/0/131070309/149918.pdfIn PDF document text
- http://backyardgiantgames.com/uploads/1/3/0/7/130774964/faroruw.pdfIn PDF document text
- http://applyfordisabilitynow.us/uploads/1/3/0/3/130379137/6871035.pdfIn PDF document text
- http://pavechecks.com/uploads/1/3/0/4/130483299/4590889.pdfIn PDF document text
- http://maralynhargrove.com/uploads/1/3/0/6/130620173/rewajile.pdfIn PDF document text
- http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dae7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAE7 | 1960 bytes |
SHA-256: 8645994567b67f16332bc7eb82ea324b1f73638b9171ae7a5ab9f24031028ebb |
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font_01_sfnt_off0000e3a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3A7 | 10956 bytes |
SHA-256: 69195728f8977a16f4ab6e5a1c4ec3aa426f16c0b17384378d0c1d9ed7355c8b |
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font_02_sfnt_off000109fc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109FC | 2652 bytes |
SHA-256: 3d52fc27d04b8b84b219df719738f768697e09c2050136bc1fe69fcddf4eca6e |
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font_03_sfnt_off00011362.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11362 | 16036 bytes |
SHA-256: 779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63 |
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