MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for delivering malicious content. It also contains numerous external URIs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
Heuristics 7
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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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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://marta-galan.com/files/varios/file/88756429830.pdf In PDF document text
- https://www.idahomedia.com/wp-content/plugins/super-forms/uploads/php/files/1285d46e7b9d445ec3b693ddb5049e01/86574693161.pdfIn PDF document text
- http://1137.jp/app/webroot/js/ckfinder/userfiles/files/14746284178.pdfIn PDF document text
- http://gianniarnaudo.com/userfiles/files/kifizunogagukesa.pdfIn PDF document text
- https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/ca5aa369fa0f383a2c53610f8fd669ff/25135910653.pdfIn PDF document text
- http://constantemail.com/userfiles/file/162320621061636011161.pdfIn PDF document text
- http://gewald.ru/content/Files/10239243835.pdfIn PDF document text
- http://drjoecarver.com/clients/49355/File/rilebomezili.pdfIn PDF document text
- https://plentis.eu/ckfinder/userfiles/files/febadodatopilumodunuxor.pdfIn PDF document text
- http://art-lan.ru/uploads/assets/file/likeruxebetopabazok.pdfIn PDF document text
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160ad675fb996a---bepakupilofokezuza.pdfIn PDF document text
- http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160edc388d31fc---lujofonin.pdfIn PDF document text
- https://ludifrance.fr/userfiles/file/74890342403.pdfIn PDF document text
- http://robalton.es/Albums/images/file///3696519225.pdfIn PDF document text
- https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/603e455138967b6100d958797b36f653/37273276189.pdfIn PDF document text
- https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160d31b6ac2198---31596743803.pdfIn PDF document text
- https://muzeumkonstancina.pl/attachments/file/2315313398.pdfIn PDF document text
- https://feriaesotericadeatocha.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2e941df1aa---jugulamelenuwekuwamiz.pdfIn PDF document text
- http://kramnyca.info/img/upload/editor/file/19342913069.pdfIn PDF document text
- https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/1e320mv2hra31koste69sqie6p/bojitudesak.pdfIn PDF document text
- http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a9a5f34e077---lozosafafi.pdfIn PDF document text
- http://geose.ru/userfiles/file/kofasafebujozoberafixo.pdfIn PDF document text
- http://csim.jp/ckeditor/uploads/files/52928939517.pdfIn PDF document text
- http://elmiraclassiccountry.com/wp-content/plugins/super-forms/uploads/php/files/49d8e346a39ec8bf256ba9ae24460440/7891100263.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=what+is+a+hotepPDF 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_off0000e45a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE45A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fc71.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC71 | 10092 bytes |
SHA-256: 131b329913d3d75890c684b1259a36210fa61f47807a55a74a0f4c488946cfd1 |
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font_02_sfnt_off00011323.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11323 | 18744 bytes |
SHA-256: e75016d912cc5eddeb15e03ed6610f2560e3e32ff215a433c8c3592f55ca17fb |
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