MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and a link farm pointing to multiple external PDF files, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded JavaScript likely facilitates the redirection to these malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/84c2b2bd24a2efb6c0b2a4f3ec7f7a84/tetonoripikuxarijobusuv.pdf In PDF document text
- https://consultingexpert.eu/fckeditor/userfiles/file/17301040662.pdfIn PDF document text
- http://hsaltsj.com/uploads/files/30527553002.pdfIn PDF document text
- http://thaisomboonautopart.com/userfiles/files/xojulerak.pdfIn PDF document text
- https://hotellemaritime.com/hotel/upload/files/38880656566.pdfIn PDF document text
- http://hasanmasat.com/ckfinder/userfiles/files/mesaxomepurudenogek.pdfIn PDF document text
- http://rootbeadmill.com/upload_fck/file/2021-9-2/20210902051359170397.pdfIn PDF document text
- https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/s6im4u0gikhs3jric01tj5gfto/defetotif.pdfIn PDF document text
- http://huarui-bio.com/upload/files/45109433212.pdfIn PDF document text
- http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/16131f22a6b85f---95816575450.pdfIn PDF document text
- http://stromzeleny.cz/file/5365587728.pdfIn PDF document text
- http://huzatfokozo.hu/editor_up/97923684617.pdfIn PDF document text
- http://nujhimachal.in/img/uploads/files/sijopalunujawet.pdfIn PDF document text
- https://ijtm.in/userfiles/file/98321925331.pdfIn PDF document text
- https://ddshower.com/ckfinder/userfiles/files/nifozerefogugu.pdfIn PDF document text
- http://www.park-seversk.ru/other/js/ckfinder/userfiles/files/vajot.pdfIn PDF document text
- http://hstairan.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/85556363066.pdfIn PDF document text
- http://bertoniamministrazione.it/bertoni/public/file/15997622932.pdfIn PDF document text
- http://netcentricnj.com/ckfinder/userfiles/files/mevowen.pdfIn PDF document text
- https://ita.kru.ac.th/ckfinder/userfiles/files/24843637823.pdfIn PDF document text
- https://pensiuneaselina.ro/userfiles/file/87660191523.pdfIn PDF document text
- http://vagtteam.com/userfiles/Files/zolovoziravow.pdfIn PDF document text
- http://phonphangschool.com/upload/files/48888693358.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=google+gallery+androidPDF 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_off0000e621.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE621 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fe38.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE38 | 10308 bytes |
SHA-256: 1a99b20c3c4637e52e4ed63839f475e18cdd859d7f875a989350177fbac11637 |
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font_02_sfnt_off00011550.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11550 | 17728 bytes |
SHA-256: 318b633d1122687ccd4dd7979f5c60645388dd6a03e040fd90bdc5c0d2593c06 |
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