MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The sample contains embedded JavaScript, a common technique for executing malicious code within PDFs. It also features numerous links pointing to potentially compromised WordPress upload directories and other disposable hosting, indicating a link farm designed to distribute malicious content or redirect users to phishing sites. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9986
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 http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16083378730199---50127546139.pdf In PDF document text
- http://kamkmori.cz/ckfinder/userfiles/files/mafapukesakeg.pdfIn PDF document text
- http://uspeh-kursk.ru/ckfinder/userfiles/files/29025645062.pdfIn PDF document text
- http://faithleader.org/js/ckfinder/userfiles/files/sudajisoz.pdfIn PDF document text
- https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/160717820e02a1---mixepelokuso.pdfIn PDF document text
- http://eszixv.hu/ckfinder/userfiles/files/92778328525.pdfIn PDF document text
- https://aduanaldelvalle.com/userfiles/file/folifusujoka.pdfIn PDF document text
- https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084a122b9a7e---96766301896.pdfIn PDF document text
- http://3gr-group.com/ci/userfiles/files/51298186911.pdfIn PDF document text
- https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c5235211867---58152507404.pdfIn PDF document text
- https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/a4rqinb1gpjnk5uma61n0jvd9m/98996727869.pdfIn PDF document text
- https://www.ogblfrontaliers.fr/wp-content/plugins/super-forms/uploads/php/files/rnurpfc12d7p4h3pdfvh4marjq/zuwoweriluj.pdfIn PDF document text
- https://voyageaventurenepal.com/upload/files/dapurefe.pdfIn PDF document text
- https://cytairtool.com/test/userfiles/file/20210709_9ca52.pdfIn PDF document text
- https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608471a8141b0---55456097206.pdfIn PDF document text
- http://edilgroupdigiovanni.it/userfiles/files/40848821488.pdfIn PDF document text
- http://aiskreunion.com/clients/b/b4/b417c2091670ce0b0d78f4b231aea02c/File/15912806805.pdfIn PDF document text
- http://combatkuntao.com/ckeditor/ckfinder/userfiles/files/9562281105.pdfIn PDF document text
- https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/cbc9c0a75e61eac1f8829f363dcf4ab0/61984077229.pdfIn PDF document text
- http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607b4d164e38a---40030972560.pdfIn PDF document text
- http://pappteam.hu/userfiles/file/mulasegixim.pdfIn PDF document text
- http://aaaexpressac.com/userfiles/file/wolirorupudonusewesagul.pdfIn PDF document text
- http://pokorny-podlahy.cz/UserFiles/File/nadakikatinurewagajuwaj.pdfIn PDF document text
- http://www.radio-kum.si/data/files/gedaxikenapovilituvusew.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=javascript+for+php+developers+pdfPDF 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_off00012010.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12010 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00013822.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13822 | 19120 bytes |
SHA-256: b2c2b267e30fd3aea4736b637ed20d4480239bb68de8c1049698a44c73dc6f48 |
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font_02_sfnt_off000169a2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x169A2 | 10668 bytes |
SHA-256: ce9c9bbce4f7c9d99c1dfd2316319610fbe547dfb8436b5d0dc95f7d106c7ecf |
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