MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs pointing to various domains, many of which appear to be compromised or disposable hosting, suggesting a link farm or redirection scheme. The presence of external URI heuristics and the 'PDF_SEO_DISPOSABLE_LINK_FARM' rule indicate the document's primary function is to direct users to external, potentially malicious, content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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://ketchas.ru/uplcv?utm_term=use+intimation+in+a+sentence
- http://clinivetmadonnadirosa.eu/userfiles/files/80754234817.pdf
- http://rideabikenews.com/user_img/files/tonafinowivijejefeviz.pdf
- http://hydrem.ru/images/file/doxasipejos.pdf
- http://florylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/40797561766.pdf
- http://wirheiraten.de/images/file/53694125597.pdf
- https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ab856b3c25e---gijaxum.pdf
- https://carpanea.it/wp-content/plugins/super-forms/uploads/php/files/39c0000e3252e491d9ded91ff43453d4/juzutivof.pdf
- http://espacioschillout.es/images/admin/file/422081524.pdf
- https://kueapem.com/contents//files/xumoj.pdf
- http://agendatourvietnam.com/hinhanh/file/89905513712.pdf
- https://amerismithenterprises.com/wp-content/plugins/super-forms/uploads/php/files/aac9597e134e52837964a98d41609a82/laruzaxuleragodaw.pdf
- http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608839ffd90fc---wejovori.pdf
- http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160973ed374b63---pekupurifoledujemowesinon.pdf
- https://picinterior.com/ckfinder/userfiles/files/78277823024.pdf
- http://zonweringbelgie.com/ckfinder/userfiles/files/27378984183.pdf
- https://forex-robo.org/wp-content/plugins/super-forms/uploads/php/files/6fecd893039957910b9487706cfa8c02/7202864423.pdf
- http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b74976c2cf9---sejuwodatekofakinosul.pdf
- http://franzoesischebulldoggen.eu/userfiles/file/24015274715.pdf
- https://sitebyside.ru/wp-content/plugins/super-forms/uploads/php/files/e485a02f903172b7bbb05624e33c1b71/gedul.pdf
- https://accuratesearch.com/userfiles/file/gogemegilokilefuwubekob.pdf
- http://datavincity.com/uploads/ckfinder/files/65660988708.pdf
- http://alliusie.com/userfiles/file/50112959180.pdf
- http://hakkabrothers.com/userfiles/file///50417191946.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f130.bin74c965d8efee87dbbf3f890a8891db04c210a6851d94b2c5d33bfd6ac2423cab |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF130 | 17068 bytes |
font_01_sfnt_off00011d9d.bin0a68ecbd06dae7c4399def901665905ca79ccaab02513e1b72e765f2e32e544c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D9D | 10252 bytes |
font_02_sfnt_off000134ad.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x134AD | 16792 bytes |
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