MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a significant number of external URIs, many of which point to compromised or disposable hosting. These links form a link farm, a common technique for phishing or distributing malware. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
Heuristics 7
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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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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 https://markapin.com/calisma2/files/uploads/31396012352.pdf In PDF document text
- http://abpjseah.news-read.com/upload/files/98577240641.pdfIn PDF document text
- http://associatedreclaimed.reclaimedoils.com/userfiles/files/11397784669.pdfIn PDF document text
- http://good163.cn/Uploadfiles/files/kuvibenerubopapivagagurut.pdfIn PDF document text
- http://alphasigmaoverseas.com/userfiles/file/70925647491.pdfIn PDF document text
- http://cascinamana.it/userfiles/file/2365231821.pdfIn PDF document text
- http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1613ef48b05306---zivobajigovatojimavobil.pdfIn PDF document text
- http://think6.net/ckfinder/userfiles/files/20210915144529.pdfIn PDF document text
- http://cecev.com/stockages/files/jemiziperivewudafive.pdfIn PDF document text
- http://www.valaisconsulting.ch/file/81551147455.pdfIn PDF document text
- http://chinalanpa.com/images/upload/File/50134098416.pdfIn PDF document text
- https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/a0f5c5ba41752017b2fb330bf9a75abf/39609035235.pdfIn PDF document text
- https://transport.frontiermyanmar.com/sites/all/libraries/ckfinder/userfiles/files/74989153348.pdfIn PDF document text
- http://sochi-vitrazhi.ru/ckfinder/userfiles/files/gepat.pdfIn PDF document text
- http://vinag7furniture.com/app/webroot/files/editor_upload/files/53644216249.pdfIn PDF document text
- https://costabravas.com/uploads/localidades/files/44485179026.pdfIn PDF document text
- http://longarmquiltacademy.net/fckeditor/userfiles/file/deseporomun.pdfIn PDF document text
- http://www.ville-civaux.fr/admin/js/ckfinder/userfiles/files/53239985884.pdfIn PDF document text
- http://www.malagatour.es/ckfinder/userfiles/files/2763679395.pdfIn PDF document text
- http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615055c80f19b---kogavubiniduzaperexe.pdfIn PDF document text
- https://playworkspartnership.ca/sites/default/files/file/wokakifajesirosokafeli.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=keyword+ranking+check+freePDF 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_off0000b52a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB52A | 10724 bytes |
SHA-256: 2ee33d5c8a857d283e86fcfd38df64308312f9f08c036a150faff8ffc0701f4e |
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font_01_sfnt_off0000cd8e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD8E | 18236 bytes |
SHA-256: fcb482a8346d0a6549f161e003a5686f2af54a48ef7a97b88497eb758c3a8de0 |
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font_02_sfnt_off0000fcf2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCF2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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