MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded URLs, many of which are hosted on compromised websites or disposable domains, suggesting a link farm designed for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or distributing a secondary payload. No scripts were extracted, but the PDF structure and URL patterns are indicative of a malicious lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://synerhu.ru/uplcv?utm_term=powerdirector+latest+version+apk PDF link annotation
- http://unionasset.net/file_upload/spaw_upload/file/20210907213330.pdfIn PDF document text
- http://f-okinawa.com/img/tmp/file/rovutonetasigalijowuw.pdfIn PDF document text
- http://brothersaluminium.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/161347d48b55fd---24798781005.pdfIn PDF document text
- https://www.domaine-de-la-ferme.fr/ckfinder/userfiles/files/basenakasanojodixutadub.pdfIn PDF document text
- https://salonrewards.ca/images/file/galaxuniladimawofujazudoj.pdfIn PDF document text
- http://architettoseneca.com/userfiles/files/44697485201.pdfIn PDF document text
- https://feldmann.pl/userfiles/file/47467771765.pdfIn PDF document text
- http://vonschickenconcord.com/uploads/files/18361068357.pdfIn PDF document text
- http://balone.net/_upload/file///84785419722.pdfIn PDF document text
- http://www.ks-klinika.ru/ckfinder/userfiles/files/5550278954.pdfIn PDF document text
- https://almuhja.ps/ckfinder/userfiles/files/supebejitisititozov.pdfIn PDF document text
- https://pankajplast.com/ckfinder/userfiles/files/43615660566.pdfIn PDF document text
- https://masihpt2.com/contents/files/35268166312.pdfIn PDF document text
- http://alvitraders.com/files/bajivax.pdfIn PDF document text
- http://vnos.vn/app/webroot/uploads/files/nesexibupamobunutokowobo.pdfIn PDF document text
- https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/84cd371942b80a19620cccf1cb0ed36d/20055094993.pdfIn PDF document text
- http://leeharringtonhomes.com/userfiles/file/batewepozizewadilaxogivuz.pdfIn PDF document text
- https://ctcitsupport.com/media/files/68314010430.pdfIn PDF document text
- http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141e54fd79c7---filupa.pdfIn PDF document text
- http://123podkrovie.sk/editor_uploads/files/gakonudijepa.pdfIn PDF document text
- https://gastriklandsbf.se/UserFiles/files/ronise.pdfIn PDF document text
- http://ingegneriarossi.it/userfiles/files/sevakoboxujamixukemegise.pdfIn PDF document text
- https://binarbaidequipment.com/public_html/userfiles/file/53162938472.pdfIn PDF document text
- http://likuidart.com/files/ckeditor/files/gorakenuzejavomo.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_off0000cbca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCBCA | 17408 bytes |
SHA-256: 7ac03c85986599ecd97b9652309882c418853f9e24bf91ff63ecd4d6d0d68ea7 |
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font_01_sfnt_off0000f8b1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8B1 | 10752 bytes |
SHA-256: fc421625d7056881dd43fa268275ef3a65bff75d57eb0c489df6820a02b7f2bc |
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font_02_sfnt_off000111a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111A1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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