MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a significant number of external URIs, many of which are hosted on compromised CMS upload storage. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a deliberate attempt to create a link farm, likely to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly suggest malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://oniceh.ru/uplcv?utm_term=giuoco+piano+book+pdf PDF link annotation
- https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1613ac79923d88---givejagiteja.pdfIn PDF document text
- http://strojsteel.cz/webpagebuilder/ckfinder/userfiles/files/gobonof.pdfIn PDF document text
- http://casaperugia.fr/userfiles/file/76782730209.pdfIn PDF document text
- http://fapannimario.it/userfiles/files/43027498260.pdfIn PDF document text
- https://eurochen.com/UpFiles/WebEditorFiles/file/zufimobalemovowakedota.pdfIn PDF document text
- http://cleanking.net/userData/board/file/rubunevoduxinegav.pdfIn PDF document text
- https://duhocblueocean.vn/ckfinder/userfiles/files/72191490096.pdfIn PDF document text
- http://standartbio.com/fckfiles/file/labivodarowakuliwiduvoge.pdfIn PDF document text
- http://panhongbo.com/ckfinder/userfiles/site_eachfun_com/files/befakigo.pdfIn PDF document text
- http://emeraldcovepartners.com/_data/images/file/47181423999.pdfIn PDF document text
- http://interfacetravels.com/app/webroot/js/ckfinder/userfiles/files/20130619261.pdfIn PDF document text
- http://rungrawin-itt.com/userfiles/files/jurufuketewinobesog.pdfIn PDF document text
- https://nawaasha.org/userfiles/file/96966640981.pdfIn PDF document text
- https://beautyyaurient.com/editor_upload/file/luwavafasojevovuzowov.pdfIn PDF document text
- http://classicalgardenstatues.com/uplds/file/86001676110.pdfIn PDF document text
- https://detskeihriska.eu/ckfinder/userfiles/files/bagexuboruvebonop.pdfIn PDF document text
- https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/7b39ddc9e01b8eb8893afcdb0c4a9db6/zuwikonevumod.pdfIn PDF document text
- http://czerwoneiczarne.pl/files/file/41577659909.pdfIn PDF document text
- http://harryreichert.de/uploaded_pics/News/file/55965682462.pdfIn PDF document text
- http://vrtaspol.cz/klienti/devel/sneznerolby.cz/ckfinder/userfiles/files/98410601240.pdfIn PDF document text
- https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/d9edceac999ddcc9498d6bffb183082d/lurunidamonezaje.pdfIn 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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000df40.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF40 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f757.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF757 | 10440 bytes |
SHA-256: d59ae5aa7a00ea4a778e46de1ca80ea8cf217aef88a00083eb7b55c6ca09ad49 |
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font_02_sfnt_off00010ee0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EE0 | 17572 bytes |
SHA-256: 0df4bab68c355ef8a4e676b78465d60392810f8b94c1b082f772db6e62661227 |
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