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 disposable hosting or compromised CMS uploads, indicative of a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware delivery. The presence of multiple external URIs and a link farm structure points towards a spearphishing attachment delivery method.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 https://daulte.ch/ckfinder/userfiles/files/mejivigemasu.pdf In PDF document text
- http://cmtdental.com/upload/ckimg/files/2298751021.pdfIn PDF document text
- http://fthyhs.com/resource/docContentImg/file/2021-09-16/9914cdee03f8479b03abb62750ab66a2.pdfIn PDF document text
- http://neilreardon.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/88805366282.pdfIn PDF document text
- https://birotex.rs/images/files/xukosax.pdfIn PDF document text
- https://isabellepieman.com/userfiles/file/buwiwupedafiwetomoxusip.pdfIn PDF document text
- http://ski-experience-japan.com/images/blog/file/vuwonapatutetuweximuwew.pdfIn PDF document text
- https://anpheatingandac.com/nbloom/fckuploads/file/86795815371.pdfIn PDF document text
- http://drironcat.com/images/file/67613102760.pdfIn PDF document text
- http://bagandpack.ru/wp-content/plugins/super-forms/uploads/php/files/c621d772e54e80ef0fb81f9ce6579ab4/supefasad.pdfIn PDF document text
- https://xn----8sbcehyodmtf1czh.xn--p1ai/userfiles/file/27209878340.pdfIn PDF document text
- https://uhcp.com/editor_upload/file/97565678641.pdfIn PDF document text
- http://doudou.tw/userfiles/files/fojavokavej.pdfIn PDF document text
- https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/30fd97539c773557f6aaffde563feb6d/76076032190.pdfIn PDF document text
- http://abimobiliare.pl/pliki/File/kosavobejo.pdfIn PDF document text
- http://studiozammuner.eu/userfiles/files/46098235545.pdfIn PDF document text
- http://matchonusa.com/uploads/files/20226758913.pdfIn PDF document text
- https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c6c6a45018---20277619919.pdfIn PDF document text
- http://rovitek.com/userfiles/file/mokunijedosaxazijorupoxuj.pdfIn PDF document text
- https://greenways.at/userfiles/file/67183665616.pdfIn PDF document text
- https://dolupin.com/calisma2/files/uploads/3453161646.pdfIn PDF document text
- http://taihegas.com/filespath/files/20210921051137.pdfIn PDF document text
- http://bkdesign.ee/userfiles/file/tofuxitilikozagodoponeze.pdfIn PDF document text
- http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b6d00bc005---6007103038.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=ulysse+speedometer+apkPDF 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_off0000b504.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB504 | 10568 bytes |
SHA-256: 91ece955d0c70b91acafdca74dbe471f1a32fe5e975f825feff6b19aa0995f6a |
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font_01_sfnt_off0000cd2d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD2D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e53f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE53F | 15212 bytes |
SHA-256: 53de53fbd83d51484fd48cbda8b24290cdd4336b55e3962e3776d96ee75d897f |
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