MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics as containing a link farm pointing to compromised CMS uploads and disposable hosting. The ML classifier and ClamAV also identified it as malicious, specifically as a phishing trojan. The embedded URLs suggest an attempt to redirect users to potentially malicious content, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 6
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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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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://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160c1bdd9ccd46---54564288527.pdf In PDF document text
- http://appartenvue.net/appart/upload/images/fokolomexewogujeranoj.pdfIn PDF document text
- https://expresstestingatl.com/wp-content/plugins/super-forms/uploads/php/files/757107e3b7a124d91b05b6c9deab6cf9/vetatofizikugikuv.pdfIn PDF document text
- http://clinicaveterinariacene.com/userfiles/files/81636618240.pdfIn PDF document text
- http://nuraski.pl/wsg/userfiles/84773658833.pdfIn PDF document text
- http://dogable.de/userfiles/file/sajukepul.pdfIn PDF document text
- https://bienenaktuell.com/sites/bienenaktuell.com/files/file/dofewubabowixubek.pdfIn PDF document text
- http://chinajessie.com/seadata/data/uploads/img/file/162245447983.pdfIn PDF document text
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/35c0fb32bbc321774e31ca0a30499d53/66115223704.pdfIn PDF document text
- http://domeinbeverdonk.be/assets/files/file/vozosupepogamenupow.pdfIn PDF document text
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ace2df7328b---zonabanepapenigox.pdfIn PDF document text
- http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082909c221ab---77336585507.pdfIn PDF document text
- http://soupworld.de/upload/file/23950650825.pdfIn PDF document text
- https://flardochform.se/userfiles/file/puxeranerirovubesatimuf.pdfIn PDF document text
- http://juniorsmagazine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a8f173132a---jekufitavakemukola.pdfIn PDF document text
- http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16076bebe449c4---55751748056.pdfIn PDF document text
- https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8d99d9db8a---66408579980.pdfIn PDF document text
- https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/e872fef2d4c040ca9ebba650cb9882d0/lizajodewifumaxuk.pdfIn PDF document text
- https://vili-al.com/uploads/wysiwyg/files/42480079057.pdfIn PDF document text
- https://www.propertyfilevault.com/wp-content/plugins/super-forms/uploads/php/files/eb34555b13edb4eb88f53af499beb54c/16234587516.pdfIn PDF document text
- http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a5e8d54b74---33167248787.pdfIn PDF document text
- https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/738c71bf9b39f554e016aed9449e015e/xamumutiwerubevonux.pdfIn PDF document text
- https://efficimm.fr/userfiles/files/boraxuxigepalidivekar.pdfIn PDF document text
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/160784fdac1b9f---62881829886.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=how+to+combine+pdf+files+that+are+password+protectedPDF 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_off0000e6a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6A7 | 17904 bytes |
SHA-256: da70987e585c81c6df3aa99cce8c8ea601054cdef986df682b1ec35a8cef1ded |
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font_01_sfnt_off00011586.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11586 | 11104 bytes |
SHA-256: bd230a12138704d61a74968e6b0d5ce093a203dde7c7c5b6f8d410d20350c0b2 |
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font_02_sfnt_off00012ef8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12EF8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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