MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which are hosted on disposable domains or compromised CMS uploads, indicating a link farm designed for phishing or malware distribution. The ClamAV detection and ML classifier strongly suggest malicious intent, likely to deliver a secondary payload or redirect users to a phishing site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://chcial.ru/uplcv?utm_term=vogel%27s+qualitative+inorganic+analysis+7th+edition+pdf+download PDF link annotation
- http://hanart21.com/files/userfiles/file/72427655767.pdfIn PDF document text
- http://marymo.ru/uploads/files/nageseveroxopewepinibof.pdfIn PDF document text
- https://thehideawayresortpattaya.com/userfiles/files/4688048656.pdfIn PDF document text
- https://marikakozmetika.hu/editor_up/samapogosavugagibibikape.pdfIn PDF document text
- http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098bb25d5606---85169398976.pdfIn PDF document text
- http://hanasushimenifee.com/uploads/files/3592573708.pdfIn PDF document text
- http://drironcat.com/images/file/fifizopiwopedobuku.pdfIn PDF document text
- http://asbu.net/uploads/FCK_files/file/numebupuzoj.pdfIn PDF document text
- http://propack-th.com/image/upload/File/nusuf.pdfIn PDF document text
- https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609622670cc0e---wunevized.pdfIn PDF document text
- http://frigotechreina.com/userfiles/files/8715655479.pdfIn PDF document text
- http://dirpub.org/editor/ckfinder/userfiles/files/wabovutinagevawis.pdfIn PDF document text
- https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/8913a20e06d5d99c0bc5febb85ae617b/najifunisajisojupokamu.pdfIn PDF document text
- http://bradzo-ep.com/uploads/files/nukipiwu.pdfIn PDF document text
- https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/b47783f99dc5bb9785c996cac04679fd/20923558276.pdfIn PDF document text
- http://blow-w124.com/js/upload/files/tunitukexokenufowiguzanud.pdfIn PDF document text
- https://www.couleurs-et-jardin.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160c869cf0b508---fufefugapirimivosazix.pdfIn PDF document text
- https://mangonebike.com/uploads/file/tejedazaxigor.pdfIn PDF document text
- https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/75137439718ab3598c6244902726b1fa/xakimiligij.pdfIn PDF document text
- https://korzayithalat.com/spot/admin/fckeditor/userfiles/file/tubovukegelexotajivakuza.pdfIn PDF document text
- http://liveisagenix.com/ckfinder/userfiles/files/xapukebaradu.pdfIn PDF document text
- http://hosungtour.net/FileData/ckfinder/files/20210715_F7D6EADF8F2420AE.pdfIn PDF document text
- 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_off0000ec00.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC00 | 11464 bytes |
SHA-256: 98322c95ab147b5401a653a2665ef11d42a167ec60cfee6207dc9c88bcb0171f |
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font_01_sfnt_off000106bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106BF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011ed1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11ED1 | 18996 bytes |
SHA-256: 07a721b77fb14416b6cd80d2614115943aff26680840dc67be50047e16e8f718 |
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