MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains a large number of external links, many of which point to unknown PDF files hosted on compromised websites. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates this is a link farm, and the 'ML_NYX_PDF_MALICIOUS' and 'CLAMAV_DETECTION' firings confirm its malicious nature. The presence of external URIs suggests an attempt to redirect the user to potentially malicious content or for SEO manipulation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/16140bb4fe9a2a---jivuzesozatuxofevuse.pdf In PDF document text
- https://vanvoorst.info/uploaded/file/71217967420.pdfIn PDF document text
- http://mrybalko.ru/files/36152938676.pdfIn PDF document text
- http://abwrosedale.com/uploads/files/72282187527.pdfIn PDF document text
- https://papersacksfactory.ae/images/bulk_images/files/tikazofarazikunaparive.pdfIn PDF document text
- http://sicompk.com/survey/userfiles/files/garerebomumafatosadis.pdfIn PDF document text
- http://kipia-nn.ru/userfiles/file/43875583285.pdfIn PDF document text
- http://studiolorenzoni.eu/userfiles/files/74351372615.pdfIn PDF document text
- http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1614d30a19aacb---kerulipenovuwizo.pdfIn PDF document text
- http://schodylux.pl/userfiles/file/morosafute.pdfIn PDF document text
- http://le383.com/uploads/files/zupitilifurarenadazek.pdfIn PDF document text
- http://hostingureitings.lv/uploads/userfiles/files/neromakofonifusenaroliw.pdfIn PDF document text
- https://feltshoe.com/userfiles/file/doxalexubofarisadaruvasej.pdfIn PDF document text
- http://saaretravel.ee/images/file/kovinokeraluwedep.pdfIn PDF document text
- https://dgssu.com/upfolder/e/files/20210916024811.pdfIn PDF document text
- https://hitourkorea.com/FileData/ckfinder/files/20210901_1D5287B609396460.pdfIn PDF document text
- http://hotel-la-licorne.fr/userfiles/file/29058740025.pdfIn PDF document text
- https://weeb.nu/userfiles/file/wevegogur.pdfIn PDF document text
- https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16163774ee9005---bizekag.pdfIn PDF document text
- https://sledovani2.gpshlidac.cz/www/userfiles/files/xivadiburemijufafomo.pdfIn PDF document text
- http://bangtutrang.com/upload/files/41735352750.pdfIn PDF document text
- http://music-souq.com/uploads/file/28055224098.pdfIn PDF document text
- http://pawsandtiaras.com/ckfinder/userfiles/files/8217830503.pdfIn PDF document text
- http://salondebellezaanamariaromero.es/ckfinder/userfiles/files/gotowiwokoduruwil.pdfIn PDF document text
- http://sangjeom.com/userfiles/file///surakaxabudufonuja.pdfIn PDF document text
- http://king-tableware.com/uploads/files/202109160416261840.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=boom+meaning+in+tamilPDF 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_off0000f18a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF18A | 10236 bytes |
SHA-256: 6d9771d95876a87245d2d330ebbbafe7f18365cd7d54f4f81877f0f25f44c3be |
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font_01_sfnt_off00010882.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10882 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012094.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12094 | 20356 bytes |
SHA-256: 8403db9b9697ee42c112187980a130fe4f8ac870c15271c8a125d1ef4d1e7cf0 |
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