MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple external URIs, many of which point to compromised or disposable hosting. The heuristics indicate a link farm designed to redirect users, and ClamAV explicitly detected this as a phishing trojan. The embedded JavaScript likely facilitates the redirection or download of further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 7
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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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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://medvor.ru/uplcv?utm_term=how+to+fix+your+academic+writing+trouble+a+practical+guide+pdf PDF link annotation
- https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/31228f2c663d07ce68b179d38f3d96fb/5377726168.pdfIn PDF document text
- http://xn--80aafmoni2biho.xn--p1ai/admin/ckfinder/userfiles/files/vomejizopi.pdfIn PDF document text
- http://form4concrete.ru/pics/cont/file/37736584428.pdfIn PDF document text
- http://sattosushi.com/uploads/files/jakukamunubodeg.pdfIn PDF document text
- http://zatuchlina.cz/upload/file/tatit.pdfIn PDF document text
- https://novahealthclinic.ca/userfiles/file/dumeliromoxinexazop.pdfIn PDF document text
- http://litho-and-co.fr/ckeditor/upload/files/83209114282.pdfIn PDF document text
- http://thuephotocopytaihanoi.com/upload/files/3580670461.pdfIn PDF document text
- http://www.kickcommerce.com/userfiles/file/68640929062.pdfIn PDF document text
- https://rh-h1tapi-turbo.com/contents/files/gixuvogesuzalup.pdfIn PDF document text
- http://torby.kbo.pl/ckfinder/userfiles/files/pibatoredojuzenujot.pdfIn PDF document text
- http://chikatere.com/Upload/files/zuvadagivife.pdfIn PDF document text
- https://foodsafebox.com/ckfinder/userfiles/files/59959899575.pdfIn PDF document text
- http://zoldjogsi.hu/uploads/files/lelej.pdfIn PDF document text
- https://stomatoloska-ordinacija-rijeka.com/files/xotowebugurifinisefut.pdfIn PDF document text
- https://registracijakoncar.com/webroot/js/ckfinder/userfiles/files/wejabo.pdfIn PDF document text
- https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/1ff1428ff1dc0c45bf7af21d114416b5/wofinaxumazutuxe.pdfIn PDF document text
- http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/161420dd15ece7---nivalenifavetoziwikik.pdfIn PDF document text
- https://www.indee-r.fr/wp-content/plugins/super-forms/uploads/php/files/4d01befa773eeb986407ba3362e0f91e/9241525537.pdfIn PDF document text
- https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143ae7ba0fcc---65627542484.pdfIn PDF document text
- https://darshanam.com/ckfinder/userfiles/files/satapimojati.pdfIn PDF document text
- http://bjerkelunden.org/content/files/userfiles/file///sukawofavokemosorapumu.pdfIn PDF document text
- http://louisiana-arts.org.s150269.gridserver.com/siteuploads/editorimg/file/8662660243.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_off0000b329.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB329 | 11328 bytes |
SHA-256: ae5cdd440ba96a4307e2e70246e5e9e0550eac5ddc564f784cb3d1e947432833 |
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font_01_sfnt_off0000cd6c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD6C | 15552 bytes |
SHA-256: 01cc557d7a5eba33df2c7d6a4699b5d9ebd8e55c004f6ea5e35e48fdddd32a62 |
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font_02_sfnt_off0000f4f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4F0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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