MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as malicious by ClamAV and an ML classifier, with heuristics indicating embedded JavaScript and a link farm pointing to external PDF files. The link farm likely serves as a lure to download further malicious content or engage in phishing. The presence of embedded JavaScript suggests potential for exploitation or obfuscated malicious code execution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 7
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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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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://queure.ru/uplcv?utm_term=creole+conjure+rootwork PDF link annotation
- https://shinko-tw.com/UserFiles/file/49100492417.pdfIn PDF document text
- http://score1forspencer.com/clients/4/45/4587145e2679cb7673d0e21b436e5c25/File/xavebefaburazev.pdfIn PDF document text
- http://polesprogettazioni.com/userfiles/files/jepabutirowevanaguropin.pdfIn PDF document text
- https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/1815296950077c8002623634c7c9b4cf/41822088019.pdfIn PDF document text
- http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/161010803485f2---61220659723.pdfIn PDF document text
- https://holyfamilyhospitals.com/ckfinder/userfiles/files/bebijovuluvaza.pdfIn PDF document text
- https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/1608949387c495---71320636892.pdfIn PDF document text
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b374570f731---gudufanom.pdfIn PDF document text
- http://balie.overeembv-profielen.nl/upload/files/14664185369.pdfIn PDF document text
- http://zsmnowakowski.pl/userfiles/file/bufobepazemada.pdfIn PDF document text
- http://ricarda-allegra.de/userfiles/file/darutotisukosujezuj.pdfIn PDF document text
- https://www.adcgrain.com/wp-content/plugins/super-forms/uploads/php/files/8065398dab85d6e3e2637d1833c8123e/89700618625.pdfIn PDF document text
- http://www.herbertvanderbrugghen.nl/draft/92268526929.pdfIn PDF document text
- http://momsystem.ru/public/file/20015501569.pdfIn PDF document text
- http://plafondchauffant.fr//img/user/file/7150586946.pdfIn PDF document text
- https://ljlconst.com/admin/images/file/94457137932.pdfIn PDF document text
- https://makanbanyak.net/contents/files/14880884112.pdfIn PDF document text
- https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1606c761aa6a46---befifagumorusuk.pdfIn PDF document text
- https://ataru.site/js/ckfinder/userfiles/files/vivuzopivubimugilelu.pdfIn PDF document text
- http://paoladebenedetti.eu/userfiles/files/fefibirilukewitobatipo.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_off0000db5f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB5F | 17104 bytes |
SHA-256: e05068a827a485fc1f2b5e6b3345594643f056ba8a4cc8b8f3409e53d70a098a |
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font_01_sfnt_off000107cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107CF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011fe6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FE6 | 10240 bytes |
SHA-256: eaebf93f34e87b86767e1343cf7348983a6b5a4aa032beebd528b278e536ef62 |
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