MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains embedded JavaScript and numerous external URIs, many of which point to disposable hosting or compromised CMS upload storage, suggesting a link farm designed to redirect users. The presence of PDF_JS heuristics indicates the JavaScript is likely used to facilitate the redirection or exploit vulnerabilities.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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 http://vitacanes.com/uploads/files/47309187767.pdf In PDF document text
- http://e-menu.hu/editor_up/lufiladumup.pdfIn PDF document text
- http://www.contal-farmer.com/uploads/files/lubapuzorapuza.pdfIn PDF document text
- https://aukshanya.promosing.com/alpha/ckfinder/userfiles/files/40869571552.pdfIn PDF document text
- http://sibinetweek.ru/userfiles/file/87556687032.pdfIn PDF document text
- http://juditphotography.com/picture/userfiles/file/19226769297.pdfIn PDF document text
- http://cokhihoaiduc.com/uploads/files/kefurorinusuteburune.pdfIn PDF document text
- http://yas-center.ru/userfiles/file/sezelam.pdfIn PDF document text
- http://talk200.com/admin/admin/uploadfiles/file/38334998130.pdfIn PDF document text
- https://colegiumaniucarei.ro/ckfinder/userfiles/files/laxuvawovogurelifupovopit.pdfIn PDF document text
- http://chandigarhdatarecovery.com/files/file/nejir.pdfIn PDF document text
- https://ochronaskory.pl/pliki_user/File/bawoparibanilaf.pdfIn PDF document text
- https://cytairtool.com/test/userfiles/file/20210910_8d377.pdfIn PDF document text
- https://newsale.linyn.mobi/upload/ckeditor/pages/files/dinulon.pdfIn PDF document text
- http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/161453dea8eae6---gozanisakumapajuxanes.pdfIn PDF document text
- http://albarossa.jp/js/upload/files/wonimovotagexomizir.pdfIn PDF document text
- https://hotelangela.hu/userfiles/file/vurufefepujekej.pdfIn PDF document text
- https://marblobath.com/app/webroot/img/files/zegabonuvofokeduzojuzoto.pdfIn PDF document text
- http://drentmedischadvies.nl/uploads/files/79877218541.pdfIn PDF document text
- http://qishuochem.com/siicea/userfiles/file/82554627797.pdfIn PDF document text
- http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161438eb1d4320---javezikugebumutiw.pdfIn PDF document text
- https://ltssinternational.com/res/wysiwyg/file/vudogufogelenikov.pdfIn PDF document text
- https://ngenadmin2.nextgenphotosolutions-beta.com/app/webroot/files/file/rixiwu.pdfIn PDF document text
- http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615d0bb984df6---zuxulefumaxukaliwinosu.pdfIn PDF document text
- http://robwalker.net/fckupload/file/bosofogitaruxegu.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=swollen+foot+from+wasp+stingPDF link annotation
- 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_off0000c1d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC1D5 | 16680 bytes |
SHA-256: 6f03e99e2e7435353717160a3350c969621e6e9ee86650472443784b8a7de263 |
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font_01_sfnt_off0000ec8f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC8F | 10860 bytes |
SHA-256: be971f2c33dfd83b803bc3b8b71dcd823c959a6267e483ed98218a5718baf98c |
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font_02_sfnt_off000105b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105B4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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