MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, with numerous embedded URLs pointing to compromised websites, likely to lure users into downloading further malicious content or submitting sensitive information. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, indicating a pattern of using disposable hosting for link distribution.
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 http://npas.ru/pic/file/bapoliwukugupenadapa.pdf In PDF document text
- http://studiorinaldibedin.eu/userfiles/files/miduwofomizebun.pdfIn PDF document text
- http://tafgambiatours.com/userfiles/file/bejud.pdfIn PDF document text
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/muucj48jj6ggeumvn3rfo8cl3a/rewizupenub.pdfIn PDF document text
- http://kompletucetnictvi.cz/files/file/99292616619.pdfIn PDF document text
- https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/d4b4c8809db419f1865d6792f5b80247/dujidokugopure.pdfIn PDF document text
- https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/ta4gq4lvji0jtqg88j4e1vlb68/robur.pdfIn PDF document text
- http://cbgnfinance.com/userfiles/file/77388395010.pdfIn PDF document text
- http://www.ambredore.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608dc31f4eb7c---20914575036.pdfIn PDF document text
- http://hitplus.eu/userfiles/file/fijekawanatufeza.pdfIn PDF document text
- http://dok-vo.ru/userfiles/file/witidi.pdfIn PDF document text
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/aheuo3ap97csdisuafjdtv8617/59051417786.pdfIn PDF document text
- http://m2mus.ca/clients/b/b1/b1ca46fdb12d68e762e4a8b3318caec0/File/sejavotopojosafojikubiwup.pdfIn PDF document text
- https://www.hasmow.com.au/application/third_party/ckfinder/userfiles/files/55923082433.pdfIn PDF document text
- http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608528ce6e08a---nimerozenadudav.pdfIn PDF document text
- http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/160f5acfae8ead---lavezakudakuf.pdfIn PDF document text
- http://kimyasaldubeller.com/upload/ckfinder/files/97961248139.pdfIn PDF document text
- https://eviinstall.com/userfiles/files/lewamokipazira.pdfIn PDF document text
- http://thekitchendesignstudio.org/uploads/files/zetizazefopinofeki.pdfIn PDF document text
- https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/9e2ef743a903bcbfe67b5eb04a59aa12/94680809896.pdfIn PDF document text
- http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073c37d57577---53175603057.pdfIn PDF document text
- http://easternhoteljeju.com/FileData/ckfinder/files/20210613_8432BFBCEED97AAD.pdfIn PDF document text
- http://hnatiukreunion.com/clients/b/b5/b5561851e3069b632e798ef7a1275556/File/josira.pdfIn PDF document text
- http://fusen-es.info/yamituki-n/uploads/files/xokotudolagulafiwad.pdfIn PDF document text
- https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/abh6hhume8gp5jeia7s4lnsrt3/tijuvi.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=medial+prefrontal+cortex+pdfPDF 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_off0000d830.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD830 | 10540 bytes |
SHA-256: b5a74fe7b2b3ec1e3a923ced01b0d4fc5604aa31e9b882b8a6e6a5231875c1ed |
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font_01_sfnt_off0000f04d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF04D | 17540 bytes |
SHA-256: b0cd77782db3c0fa65e9ee2daa9bf2f820736caf7309285a9d73ece5d1e553f5 |
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font_02_sfnt_off00011d41.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D41 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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