MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of external links, many of which point to disposable hosting or compromised CMS upload directories, indicating a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly support its malicious nature, likely as a phishing or trojan delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 https://cosmopolitanhotel.eu/uploads/wysiwyg/files/56967723550.pdf In PDF document text
- https://snabavto.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135a86e570d6---pawawovuzu.pdfIn PDF document text
- http://daimarconstrucciones.com/images/admin/file/vegupojubemuvosafe.pdfIn PDF document text
- http://greensketch.in/userfiles/file/5540578656.pdfIn PDF document text
- https://ssmahavidyalaya.org/lion/uploadedfiles/fck/files/file/47193773138.pdfIn PDF document text
- https://gulf-rope.com/images/bulk_images/files/tezokigibe.pdfIn PDF document text
- http://ertekeles.diakszempont.hu/userfiles/file/zemusawemexi.pdfIn PDF document text
- https://penmypoem.com/new/admin/uploadfiles/file/54049861283.pdfIn PDF document text
- http://giorgimpianti.com/userfiles/file/kawopupusasijuviviretova.pdfIn PDF document text
- http://unstitchedfootwear.net/files/file/fifevapexadozejivozuxapu.pdfIn PDF document text
- http://veterky.ru/ckfinder/userfiles/files/16218105899.pdfIn PDF document text
- http://gs-metals.com/filespath/files/20210909235234.pdfIn PDF document text
- https://digireg.cz/upload/jekunosobi.pdfIn PDF document text
- https://ajansnigde.com/resimler/files/daxugugerumuraxunov.pdfIn PDF document text
- http://josephfellerlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/kapatesivij.pdfIn PDF document text
- http://escritacontabilidade.net/fotos/news/file/47436425233.pdfIn PDF document text
- http://carsonpokebar.com/uploads/files/95592112710.pdfIn PDF document text
- https://kamionosnyelvlecke.hu/userfiles/file/42951721383.pdfIn PDF document text
- http://xn--80aesyq.xn--p1acf/files/file/vubutul.pdfIn PDF document text
- https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614098ecb8d67---zixod.pdfIn PDF document text
- http://hoanhaochemical.com/uploads/files/petejone.pdfIn PDF document text
- http://farmaciacogliate.it/userfiles/files/muxijo.pdfIn PDF document text
- http://ankurgroups.com/userfiles/file/muzav.pdfIn PDF document text
- https://www.oasipizza.it/wp-content/plugins/formcraft/file-upload/server/content/files/1614576087a866---firamolifizimozivifomux.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=4chan+apps+androidPDF 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_off0000b0e2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB0E2 | 10316 bytes |
SHA-256: b4a1bb1772c332856258c3b88bc8ac87b0c06abad3a22e5f6c0b39207c0f3573 |
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font_01_sfnt_off0000c806.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC806 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e018.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE018 | 15012 bytes |
SHA-256: 712e7d0ed073856b8820e925e65d81ddb59b36722356a0cbb43414b06d3c4b32 |
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