MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. Heuristic analysis revealed that the document functions as a link farm, directing users to multiple compromised websites and potentially disposable hosting. These links are likely used to distribute further malware or conduct phishing attacks.
Machine Learning
- Nyx PDF Classifier malicious score 0.9844
Heuristics 6
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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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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.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/160849bc829fe0---kopaxolo.pdf In PDF document text
- https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/160f0b005899f5---walobeza.pdfIn PDF document text
- http://yossy.biz/userfiles/file/xamibisuriladamaranut.pdfIn PDF document text
- http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/ms6vs7vjcd7h38358ml7ds3cp1/kalatiregi.pdfIn PDF document text
- https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/160bbfdde7794f---52839473787.pdfIn PDF document text
- http://africanhairbraidingsalon.com/userfiles/file/xixogevazox.pdfIn PDF document text
- http://ottotech.center/userfiles/file/risolawisimijaru.pdfIn PDF document text
- https://amblamy.ee/upload/file/30528000085.pdfIn PDF document text
- http://sanphamhanquocymy.com/uploads/files/69107972369.pdfIn PDF document text
- https://olympicwroclaw.pl/zdjecia/fck/file/18404981950.pdfIn PDF document text
- https://vmwarts.com/ecovic/file/87681239643.pdfIn PDF document text
- http://sunarfactory.com/userfiles/files/28610280452.pdfIn PDF document text
- https://www.napariverinn.com/wp-content/plugins/super-forms/uploads/php/files/31c0931e7d7bce39865ac3a710b76c8c/zojigekamikazewiri.pdfIn PDF document text
- http://xn--80aafkqcanfpgnhbng3b5i9a.xn--p1ai/pict/file/xudisijelalegasasenamavo.pdfIn PDF document text
- https://avvocatoboretti.it/file/28332669420.pdfIn PDF document text
- https://aptitudeclass.com/ckfinder/userfiles/files/bomifusamaxabi.pdfIn PDF document text
- http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160821956c7c35---29494257243.pdfIn PDF document text
- http://go-trec.com/wp-content/plugins/super-forms/uploads/php/files/f7g3ubuh98cfdhstqf8pispr86/biwelivolopebojepigelifa.pdfIn PDF document text
- http://spc1991.com/ckfinder/userfiles/files/88711906862.pdfIn PDF document text
- http://greatnice.club/updatefiles/file/30277776432.pdfIn PDF document text
- http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b14bc7ee728---mowuzikita.pdfIn PDF document text
- https://bedandbreakfastchia.it/userfiles/file/rabodexamejosoxudapara.pdfIn PDF document text
- https://porterbrothersltd.com/app/webroot/uploads/51477295703.pdfIn PDF document text
- http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/160eca7b168e8f---tamexokam.pdfIn PDF document text
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16075790d3ca17---gavasekiretufexavogebon.pdfIn PDF document text
- http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609110a28a353---40069610118.pdfIn PDF document text
- http://alemotta.com/resources/original/file/xiwipisemunidebumoru.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=blind+date+uncensoredPDF 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_off0000cd0c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD0C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e523.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE523 | 10516 bytes |
SHA-256: fe74cd37b4519687183d707a2d1661e3b0f2466b747e7255ae5372a2a88283f9 |
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font_02_sfnt_off0000fd2e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD2E | 17800 bytes |
SHA-256: 577e7d5423ab18ab0157f63a907f83df174807300330a17f148fed1ba4772f43 |
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