MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics, including a high-confidence ML classifier and ClamAV, as malicious. It contains numerous embedded URLs pointing to compromised CMS upload storage and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of these links and the overall structure indicate a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9907
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://segurosjdd.com/wp-content/plugins/super-forms/uploads/php/files/8soursbfhoajtoi5f4cjo5so05/72091881719.pdf In PDF document text
- http://architettoletiziamasciotta.eu/userfiles/files/31399392314.pdfIn PDF document text
- https://www.fangjin.org/ckfinder/userfiles/files/wavuxe.pdfIn PDF document text
- https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/1l9dmg3ak1cv3im65b66bjlo4n/jujeka.pdfIn PDF document text
- http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1606ccbb4c10f8---kejazi.pdfIn PDF document text
- https://conexusinternational.com/ckfinder/userfiles/file/norenobozulijawaw.pdfIn PDF document text
- https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/1a653ea925c215b2e8c028f8a746e83f/pilapalokoxisidozen.pdfIn PDF document text
- http://tuzvedo.hu/elemek/file/rufofawokowarelavajujim.pdfIn PDF document text
- http://5lovestartw.com/CKEdit/upload/files/25272808435.pdfIn PDF document text
- http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/a8q32nu71nb5i7l4o5mobgddo5/32060501722.pdfIn PDF document text
- http://gpba.ge/admin/ckeditor/ckfinder/userfiles/files/84798967859.pdfIn PDF document text
- http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a85885ab1ee---7371218332.pdfIn PDF document text
- http://makinsushi.com/uploads/files/gumurisutaminagonerox.pdfIn PDF document text
- http://saluteebenesseresas.it/userfiles/files/sotekerisobizoxuzosonez.pdfIn PDF document text
- http://wang023spa.com/userfiles/202108file/2021080402081970554.pdfIn PDF document text
- https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/161033e387fbfc---75248350907.pdfIn PDF document text
- http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/160bb69b7c2289---44671504942.pdfIn PDF document text
- https://aannemingsbedrijfbarthulsbosch.nl/userfiles/file/66411005969.pdfIn PDF document text
- http://orlickachata.cz/files/files/letivapetadigulajarivokef.pdfIn PDF document text
- https://graffitipaintstudio.com/wp-content/plugins/super-forms/uploads/php/files/6acddf9f151956303941a178fb04bbfd/xeseda.pdfIn PDF document text
- https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/160894ed7ed68e---48563474731.pdfIn PDF document text
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/0sehmbrsop2ngb4k6k0vaf404l/zaxoduvonukizixilobaniga.pdfIn PDF document text
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16076516db0a2a---70796460926.pdfIn PDF document text
- http://slmj8.com/data/userfiles/files/xarimutunupebujokapopumu.pdfIn PDF document text
- http://fatfailogistics.com/fckeditor/files/file/62877230860.pdfIn PDF document text
- https://www.asoriofrio.org/ckfinder/userfiles/files/tolodibavogi.pdfIn PDF document text
- https://www.spreefahrten-berlin.de/wp-content/plugins/super-forms/uploads/php/files/0v8h82p29s9p3sld53m0n5995j/68086119251.pdfIn PDF document text
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/22e86c49bf5c6e3b555d297e537d9661/kogabafavomadikogud.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=2010+sienna+owners+manualPDF 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_off0000bd69.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD69 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d580.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD580 | 10556 bytes |
SHA-256: 59c8e4f62b5235027c775db2b6190af17d40b5de53c3acaeb606f7c9115f3b8d |
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font_02_sfnt_off0000edab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDAB | 16936 bytes |
SHA-256: 6d0e1b4ddfc4fc0c9eb4c2644353b72ae1af8de8f4311bfeeb3d03fc0528b8ea |
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