MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm or SEO poisoning attempt. ClamAV detected this as a phishing trojan, and ML classification strongly suggests maliciousness. The presence of multiple external URIs and compromised CMS upload links points to a malicious intent to redirect users or host malicious files.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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 http://vkts.se/userfiles/file/53887939188.pdf In PDF document text
- https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613a1df729d28---54464293190.pdfIn PDF document text
- http://msci.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/161388c6339ccc---zadave.pdfIn PDF document text
- https://eledigitalpr.it/allegati/file/valutugevesunamorisido.pdfIn PDF document text
- http://konberdbio.com/upload/files/46306861120.pdfIn PDF document text
- http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/2b78d118b504b2386e6f4fee042bb8a5/18064881322.pdfIn PDF document text
- http://walosports.cl/userfiles/file/3774963421.pdfIn PDF document text
- http://www.autoservis-hubatka.cz/admin/upload/ww/file/bamokif.pdfIn PDF document text
- https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/a8fbfd8959156c2765c12e74ca2c2fb2/dotuwetudofazosetugeju.pdfIn PDF document text
- http://www.egymast-segito.hu/uploaded/fck/file/wixezakegamovokavul.pdfIn PDF document text
- https://0924055971.com/uploads/files/202109160212024407.pdfIn PDF document text
- http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136919f4ea7c---2334149722.pdfIn PDF document text
- http://marienoellebermond.com/img/uploaded/file/93513034282.pdfIn PDF document text
- http://sgrappresentanze.eu/userfiles/files/nulinokenunerudisilota.pdfIn PDF document text
- https://www.phuketvillarentalandservices.com/ckfinder/userfiles/files/tipuxetepadazodojenoxase.pdfIn PDF document text
- http://sakurahoaanhdao.com/webroot/img/files/9177609200.pdfIn PDF document text
- http://atreve.eu/ubezpiecz/obrazy/file/88094947681.pdfIn PDF document text
- http://mebizstekla.ru/userfiles/file/wemuvotufaronewuxifude.pdfIn PDF document text
- http://christopherdallo.com/file/87262392830.pdfIn PDF document text
- https://dyaa.club/uploads/file/nuselifalafanum.pdfIn PDF document text
- http://baugeraeteverleih.de/benutzerdateien/82886409577.pdfIn PDF document text
- http://mtcnx.com/upload/fckimagesfile/48270136210.pdfIn PDF document text
- http://rilta.net/userfiles/files/1628349652.pdfIn PDF document text
- http://tidomusica.com/uploads/files/202109020148038214.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=features+of+prokaryotic+and+eukaryotic+cellsPDF 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_off0000c82a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC82A | 16916 bytes |
SHA-256: b7d41a1151db9e0f054886313abbc0077a936bf4d939faff8871c6a828ddee25 |
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font_01_sfnt_off0000f41b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF41B | 10896 bytes |
SHA-256: 47c49d8478598030be9582803de9e54ce39984bb6069dca61278ff1443876d12 |
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font_02_sfnt_off00010d77.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D77 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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