MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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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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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://wastran.ru/uplcv?utm_term=instal+ubuntu+on+chromebook PDF link annotation
- http://zwickerfoto.hu/_user/file/85379507088.pdfIn PDF document text
- http://boletin.alicantehosteleria.com/lib/ckfinder/userfiles/files/tulemure.pdfIn PDF document text
- http://www.florentmaussion.net/userfiles/File/lifazako.pdfIn PDF document text
- https://simbhaolipower.com/images/file/89069240650.pdfIn PDF document text
- http://tayles.com/uploaded/7420872620.pdfIn PDF document text
- http://pampa.be/uploads/userfiles/files/60511169359.pdfIn PDF document text
- http://quimis.net/js/ckfinder/userfiles/files/33310700191.pdfIn PDF document text
- http://lexprikson.com/admin/style/images/userfiles/file/dizinup.pdfIn PDF document text
- http://www.pzkexie.com/up_files/file/10322636468.pdfIn PDF document text
- http://zapatosperezcabrera.com/ckfinder/userfiles/files/gamurovuku.pdfIn PDF document text
- https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/d9554a33f20712d3add6a316d350bd70/58678716171.pdfIn PDF document text
- https://maidintown.co.uk/wp-content/plugins/super-forms/uploads/php/files/d0cfce4d6114b978a7ec0d45ab78e69d/67833163786.pdfIn PDF document text
- https://braindevelopmentmaps-org.neurondevelopment.org/userfiles/files/nobatinesipuluzog.pdfIn PDF document text
- http://xn--365-pn7mwb654m2qn.com/ckupload/files/50629045575.pdfIn PDF document text
- http://jujucuisine.com/userfiles/file/pofalakijekowujusivibo.pdfIn PDF document text
- http://bbmpva.nl/fckassets/file/7109665545.pdfIn PDF document text
- http://stauarchitetti.eu/userfiles/files/9878446525.pdfIn PDF document text
- https://accu-split.com/userfiles/files/35689979349.pdfIn PDF document text
- https://htlexpress.com/ckfinder/userfiles/files/29300297859.pdfIn PDF document text
- http://standartbio.com/fckfiles/file/vuvekejapu.pdfIn PDF document text
- http://pantryscan.com/123cars/imagefck/file/93312436365.pdfIn PDF document text
- http://pointerboards.com/uploads/admin/files/naxenuze.pdfIn PDF document text
- https://weilaimachinery.com/userfiles/files/winaze.pdfIn PDF document text
- http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/1613f461792c50---31761793465.pdfIn PDF document text
- 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_off0000ae95.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAE95 | 10684 bytes |
SHA-256: 61adae5fe1fbfcca946e72f2fe5ee7550e0261cfd8213f17d5d3763ef554e4c1 |
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font_01_sfnt_off0000c6f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC6F8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000df0a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF0A | 14860 bytes |
SHA-256: 36f6bc87e975964330e36ecff5e193e537d82dac63907e808e366bcb792629ba |
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