MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and multiple external URIs, many of which point to compromised CMS upload directories. The heuristics indicate a link farm designed to redirect users to malicious PDF files, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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://cissud.it/uploads/ck_editor/files/21698132053.pdf In PDF document text
- http://midiabyz.com/wp-content/plugins/super-forms/uploads/php/files/f593f661688a252ca16a7181b377decb/ditowerix.pdfIn PDF document text
- http://abacusnancy.com/userfiles/file/jopovenimakepigonubavog.pdfIn PDF document text
- https://www.heracles-hotel.eu/wp-content/plugins/super-forms/uploads/php/files/31jlpi0ed1lv6urkod19141mb0/73137209406.pdfIn PDF document text
- http://gwardiajuvenia.pl/zdjecia/fck/file/wukometafamito.pdfIn PDF document text
- https://terlickodds.cz/www/www/fckphotos/file/xadiruf.pdfIn PDF document text
- https://sofupingame.com/calisma2/files/uploads/26989426857.pdfIn PDF document text
- http://lindendirect.com/tempimg/file/febikoxonuwagimo.pdfIn PDF document text
- http://treeoflifetolfu.com/clients/0/07/07f122ebb3396bb3f917f2e62af81596/File/sewigotibaleva.pdfIn PDF document text
- https://pui-vital.ro/msg_media/file/27023673406.pdfIn PDF document text
- https://q-web.ro/wp-content/plugins/super-forms/uploads/php/files/95iik0k2gcor95m8agmlami3ca/81871573606.pdfIn PDF document text
- http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c5560b389bb---nebiz.pdfIn PDF document text
- http://eldmsh1.ru/js/ckfinder/userfiles/files/19137132614.pdfIn PDF document text
- https://manuscripthandler.com/userfiles/file/fifulugovadepirutenu.pdfIn PDF document text
- https://weblative.com/wp-content/plugins/super-forms/uploads/php/files/7cq41rv365e005mdlj79tkdefo/nexuzuwelo.pdfIn PDF document text
- http://mognational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160717ae88ca60---13081633267.pdfIn PDF document text
- http://cutskytools.com/d/files/23885043171.pdfIn PDF document text
- http://chineseclothingonline.net/File/zowexivatubexupupuf.pdfIn PDF document text
- http://youzedu.com/ckimages/files/20210823185928822515.pdfIn PDF document text
- https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16073ae26b63a1---35374936396.pdfIn PDF document text
- http://engineersclasses4competition.com/files/others/gosesu.pdfIn PDF document text
- https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f6e09c8e3f2---48511119533.pdfIn PDF document text
- http://stoewebdesign.no/userfiles/file/videsalaken.pdfIn PDF document text
- http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/161da20716c8d4b0f7f4c495b4aa0f57/69901881109.pdfIn PDF document text
- https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608f3cb7b4c23---78016785879.pdfIn PDF document text
- http://abw10thstreetne.com/uploads/files/fiwewego.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=knowing+your+value+pdf+free+downloadPDF 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_off0000cc09.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC09 | 17900 bytes |
SHA-256: 1f505fe9b9749e9e203b14a0d3caf9252d152f2919f4a7d5e529f3a01985b755 |
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font_01_sfnt_off0000fa15.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA15 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001122c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1122C | 10764 bytes |
SHA-256: 74a259178eecbf32567a6b49ba65241d1778f5037d70e263b6ebb43f4b9daf5e |
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