MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm on compromised CMS uploads, pointing to multiple PDFs hosted on various domains. The presence of numerous external URIs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic strongly suggest a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 6
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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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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://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/36021d904ab34577c21f94991b100057/80087045533.pdf In PDF document text
- http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160fd8fe095752---wobesewowogetiw.pdfIn PDF document text
- http://oumkua.com/userfiles/file/xeripazon.pdfIn PDF document text
- http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a143ee4f27b---31772363376.pdfIn PDF document text
- http://falconartistmanagement.com/ckfinder/userfiles/files/10631902194.pdfIn PDF document text
- https://c4ir.ae/wp-content/plugins/super-forms/uploads/php/files/1r66jdsle4gjfn5c7c4o9f2rg0/9819237129.pdfIn PDF document text
- http://www.dramayaramendes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160762a5ac66d6---jiranawaz.pdfIn PDF document text
- http://dj-venci.com/uploads/pages/files/16647779209.pdfIn PDF document text
- http://laclonghotel.vn/upload/files/pinuxigarafotigegoripevip.pdfIn PDF document text
- http://pokorny-podlahy.cz/UserFiles/File/lajemudabaxovimorudakagak.pdfIn PDF document text
- http://moristas.com/userfiles/files/71963154906.pdfIn PDF document text
- http://thenext.pk/userfiles/files/37331611286.pdfIn PDF document text
- https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/4a48e4aabbe317e6cdda066a1033a807/sixonavamer.pdfIn PDF document text
- http://bright-mineral.com/uploadfile/file/2021060223143810.pdfIn PDF document text
- http://arcomproltd.com/userfiles/file/54244003330.pdfIn PDF document text
- https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/160e36559025a4---46397604943.pdfIn PDF document text
- https://dolupin.com/calisma2/files/uploads/fajunulatuzo.pdfIn PDF document text
- http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16102c506cd5a2---16546358111.pdfIn PDF document text
- http://email-database.info/userfiles/file/17193301125.pdfIn PDF document text
- http://mateuszkucharski.pl/admin/file/wurunudamasodomedij.pdfIn PDF document text
- https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/35c0cc2022e60b2e011767d11541bfdf/tirob.pdfIn PDF document text
- https://luyenthitoeic.info/userfiles/file/39668149983.pdfIn PDF document text
- https://accesoriosalmayor.com/images/userfiles/file/99649409761.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=define+the+term+threshold+frequency+in+the+context+of+photoelectric+emissionPDF 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_off00013ca9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13CA9 | 19464 bytes |
SHA-256: 6ccdfb0cea3ee40456aace3ea5cc89fcfca189b95692d28eca59f4b768069dd6 |
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font_01_sfnt_off00016f9c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16F9C | 11184 bytes |
SHA-256: 14653fd15f8e8ab78d16a7eca6b0ed1fe821cdf718b77957ff0d77f4c8848aaf |
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font_02_sfnt_off0001896a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1896A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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