MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics indicate the PDF contains a link farm pointing to compromised WordPress uploads and disposable hosting, suggesting a phishing or malware distribution scheme. The embedded URLs likely serve as lures to external malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9922
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://queure.ru/uplcv?utm_term=literatura+humanista+pdf PDF link annotation
- https://ovistar-dz.com/ckfinder/userfiles/files/gevonugeveledozibotem.pdfIn PDF document text
- https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16075567a32dcf---24119796010.pdfIn PDF document text
- https://manajrgvaaradhi.com/cms-uploads/files/58398122260.pdfIn PDF document text
- https://hunghiephuylog.com/upload/files/rezimagukuvurobededapovu.pdfIn PDF document text
- http://ekolojikweb.net/upld/userfiles/file/3984727222.pdfIn PDF document text
- http://christschoolblr.in/userfiles/file/pebufipojewonejedim.pdfIn PDF document text
- https://congchung7.com/upload/file/76741720296.pdfIn PDF document text
- http://churchtextile.com/userfiles/file/xalixaxadofejukudad.pdfIn PDF document text
- https://nsck-cykelmotion.dk/userfiles/file/xebugutanorelanokar.pdfIn PDF document text
- http://thesnowmanicecream.com/ckfinder/userfiles/files/jepizinujunijopo.pdfIn PDF document text
- http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/160940541371c4---fopubojezola.pdfIn PDF document text
- http://burfel.ru/upfiles/files/53649807150.pdfIn PDF document text
- http://laclonghotel.vn/upload/files/44299015621.pdfIn PDF document text
- https://insinkerator.us/images/uploaded/file/tafavuled.pdfIn PDF document text
- http://heyumpnd.com/userfiles/file///xulelixuzuvitudesotexi.pdfIn PDF document text
- http://bogieclassof67.com/clients/71235/File/84579874123.pdfIn PDF document text
- http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b6221c8b3cb---kerop.pdfIn PDF document text
- https://isabellepieman.com/userfiles/file/36373135602.pdfIn PDF document text
- http://vietkinggroup.com/uploads/userfiles/file/71986122347.pdfIn PDF document text
- http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611a8afe8d22d---17268581640.pdfIn PDF document text
- https://juegosinflablesarizona.com/files/55122975851.pdfIn PDF document text
- http://shopsuathientu.com/uploads/userfiles/file/zunejij.pdfIn PDF document text
- http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1607df1ff42fef---4346727777.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_off0001bf1f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1BF1F | 22908 bytes |
SHA-256: 72354e23e5a4ab96a276c90252865fa8e75c905f2d29acbff0a82e1725a536ee |
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font_01_sfnt_off0001f902.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1F902 | 10656 bytes |
SHA-256: 0ae2d0926e502b90ead608d2422a5021325c695964ffceeec5ebcad48268c51a |
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font_02_sfnt_off00021136.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x21136 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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