MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs that point to a variety of websites, including those hosted on compromised WordPress installations and disposable domains. This behavior is characteristic of a link farm designed to distribute malicious content or phish for user credentials. The ML classifier and ClamAV detection strongly indicate malicious intent.
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://inwebjor.ru/uplcv?utm_term=chapter+4+research+methodology PDF link annotation
- http://krzysztofmalec.pl/gfx/fck/file/damefatadamepilebopezibod.pdfIn PDF document text
- https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/161340a61a46b4---peponawimevesufokim.pdfIn PDF document text
- http://stopguepes72.fr/userfiles/file/54973600156.pdfIn PDF document text
- http://www.ih-consultant.com/ckfinder/userfiles/files/37621779556.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135afa24a155---40662102268.pdfIn PDF document text
- http://kor-ra.ru/UserFiles/file/57152837080.pdfIn PDF document text
- http://mayepnuocmia.vn/data/ckfinder/files/46102601040.pdfIn PDF document text
- http://camonetinternational.com/files/file/23593136321.pdfIn PDF document text
- http://ornito-silesia.eu/userfiles/file/xupijimawinataxil.pdfIn PDF document text
- https://fereshtegan.net/basefile/fereshtegannet/files/tujifofepeminivizobif.pdfIn PDF document text
- http://wellnesszeewolde.nl/site/data/ws/files/66153991762.pdfIn PDF document text
- https://xuanhongkhang.com/upload/files/sigurewutiguv.pdfIn PDF document text
- http://netdepphunu.vn/images/userfiles/file/58633591676.pdfIn PDF document text
- http://alpha-th.com/userfiles/file/kifisejiguvopalopiboleko.pdfIn PDF document text
- https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16138482597df5---48778996124.pdfIn PDF document text
- http://antichigelsi.it/userfiles/files/pugakevikemoditub.pdfIn PDF document text
- https://lawina-radom.pl/files/file/85212422676.pdfIn PDF document text
- http://spy-military-labs.com/userfiles/file/firixapekejavajigojev.pdfIn PDF document text
- http://club-integra.ru/userfiles/file/30720582114.pdfIn PDF document text
- http://scouttautomotive.com/editor_uploads/system/files/92949866032.pdfIn PDF document text
- http://files.ibiza-ferien.de/file/getatef.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_off0000ac4f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAC4F | 15156 bytes |
SHA-256: 55f722a1f6dc6e937885f94487c5478da64e5dff00d86aaa6d5e926680387863 |
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font_01_sfnt_off0000d237.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD237 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ea4e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA4E | 10988 bytes |
SHA-256: be8dccb521ac7001a377740ec98e66aeed0314541dbfe03da6ddcea8656d25c2 |
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