MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document contains numerous links to compromised websites, many of which appear to be part of a link farm designed to improve search engine rankings. The document's content, presented as 'Asisa madrid cuadro medico pdf', suggests a lure for users searching for medical information, likely to redirect them to phishing sites or download further malware. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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 https://pistant.ru/uplcv?utm_term=asisa+madrid+cuadro+medico+pdf
- http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608800f2f2e54---kixal.pdf
- https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/a26da2bea3e8d905b727c79ad4d7b5d3/bamavavarujuwedejeg.pdf
- http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/rbrdqlh3of5dlkgavrukhpbg06/ribibetofaxoxo.pdf
- http://airholic.com/UpFiles/WebEditorFiles/file/tuzitiwina.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607f104d0e55b---14337422001.pdf
- https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/1607818ebba43b---bajolotulofalebafu.pdf
- https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609104401a12b---7045926363.pdf
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ffe8cc57a0---fikupifejekukap.pdf
- https://actor-conseil.com/files/file/kejovudugukidefosutesu.pdf
- https://www.charroninc.com/wp-content/plugins/super-forms/uploads/php/files/fa5c2ebde98ad190cf5ae62d27301f78/29803616449.pdf
- https://www.makathastaliklari.net/wp-content/plugins/formcraft/file-upload/server/content/files/160850de40c914---wozuwenukoxedukewimuguf.pdf
- http://bamt.be/wp-content/plugins/formcraft/file-upload/server/content/files/1608f438c79c1d---58834099539.pdf
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160736e7150993---31437961078.pdf
- http://orgue-chantepie.info/FCKeditor/upload/file/pofovomifutetal.pdf
- https://www.litesourcenc.com/wp-content/plugins/super-forms/uploads/php/files/483eaa39b26e8fd27640bd4dcb7daab8/17718183648.pdf
- http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093dd1e0d241---jejisivogodimuvogal.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cfa7.bin2d9019ae239cfbad81edaa4980b845c4424029928f1d3eb68299981cb79aeb8a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCFA7 | 4952 bytes |
font_01_sfnt_off0000e071.bin4829f45215ba53faa3578e1748f5a0cf8fce81c8ebd4d4947a4e6e88a0678067 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE071 | 11580 bytes |
font_02_sfnt_off00010602.bin4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10602 | 4324 bytes |
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