MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, with numerous URLs pointing to compromised CMS upload directories. These links likely serve as lures for phishing attacks or to distribute further malware payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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=the+river+and+the+source+guide+book+pdf
- https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/4426e20e5ee513b91e94fe76db8fdefd/duxaremilunu.pdf
- http://amirafouad.com/uploaded_files/file/63324999684.pdf
- https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/33802d8e57c44654510771320eae7ea5/nidaxivixelovo.pdf
- http://www.sensible-seeds-premium.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dd9798e5f9---96328815282.pdf
- https://www.harasportcenter.com/wp-content/plugins/super-forms/uploads/php/files/m2g2b895k44ge1kqpr9837dagr/47128150184.pdf
- http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b2dc36d9088---99603468551.pdf
- https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/91e46a668c4624c67f8ecea2fe5267bd/kibexiwumukivizari.pdf
- https://clifestyle.net/uploades/userfiles/file/81655837379.pdf
- http://whsclass1968.com/clients/f/f8/f849445bb2fb8f42e7c863050dc1ba38/File/49538140139.pdf
- https://sofupingame.com/calisma2/files/uploads/534764269.pdf
- http://stlukesmn.org/clients/17773/File/pirevosejajage.pdf
- http://agnieszkapawlik.com/userfiles/file/52395030995.pdf
- https://namratalakhotia.com/userfiles/files/bumexigav.pdf
- http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce700046dd---vegig.pdf
- https://freedomhypnosisnyc.com/wp-content/plugins/super-forms/uploads/php/files/19c7a409b88c081b9b68990d2db4efc9/53882571400.pdf
- https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/5gqjgqbms003lbt5eolbta4ofb/85743990138.pdf
- https://monuments-msk.ru/wp-content/plugins/super-forms/uploads/php/files/0fc8184df71fa328ab13d804b552158e/47928972103.pdf
- http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606df437b4f75---rujuxosi.pdf
- http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/160a626aebf375---logalibogoxapodata.pdf
- https://ddshower.com/ckfinder/userfiles/files/35687837928.pdf
- http://webursitet.org/Files/file/77005958516.pdf
- http://kaupa.cz/userfiles/file/39084907188.pdf
- http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/160723e4d9032c---ganazomepaxudunelinuziz.pdf
- http://parkwaywest1974.com/clients/861606/File/93972496328.pdf
- 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://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000eed3.bin42e5b7acea14651ff266104230cb297c885f9089397607bd2c321a678d6a5b48 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEED3 | 11212 bytes |
font_01_sfnt_off000108aa.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108AA | 16792 bytes |
font_02_sfnt_off000120bc.bin722b79ddb6718a2a59c771adb99cb98577074461450fc3098ae37a99707e9109 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120BC | 16844 bytes |
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