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 CMS uploads and disposable hosting, indicating a link farm designed for phishing or malware distribution. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or trojan delivery via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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 http://studiocalcinoni.com/userfiles/files/41326592765.pdf In PDF document text
- https://adrfarysz.pl/userfiles/file/wonepexagagegowologa.pdfIn PDF document text
- http://oticonshop.com/ckfinder/userfiles/files/10527436291.pdfIn PDF document text
- http://xn----7sbabaajmdfbk3ddf3azka3b6a2r.xn--p1ai/ckfinder/userfiles/files/91631309510.pdfIn PDF document text
- https://drinkpoint.com/uploads/files/93496154949.pdfIn PDF document text
- http://yummyschool.com/_UploadFile/Images/file/35630651936.pdfIn PDF document text
- http://iglozawiercie.pl/zdjecia/file/puxiges.pdfIn PDF document text
- https://www.idd.no/ckfinder/userfiles/files/tokixiki.pdfIn PDF document text
- https://phuketwebstudio.com/ckfinder/userfiles/files/81730713437.pdfIn PDF document text
- http://homelife-superstars.com/image/files/mosarosozaxudux.pdfIn PDF document text
- https://jmcoverseaspvtltd.com/uploads/files/5376259811.pdfIn PDF document text
- https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/b39cb15ec906c880d15f7b5ead0f4196/bozozowabedenevu.pdfIn PDF document text
- http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/161321b239c913---56699770448.pdfIn PDF document text
- https://anbuadidravidarmatrimony.com/ckfinder/userfiles/files/79345330252.pdfIn PDF document text
- http://saluteebenesseresas.it/userfiles/files/83973246993.pdfIn PDF document text
- http://www2.grupoksl.com.br/js/ckfinder/userfiles/files/gaxekeki.pdfIn PDF document text
- https://postelezmasivu-zlin.cz/ckfinder/userfiles/files/29486594430.pdfIn PDF document text
- https://skiclubraonbaccarat.fr/pdf/kukakikomozugob.pdfIn PDF document text
- https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fcdae385b1---32260494918.pdfIn PDF document text
- https://cape-electronics.com/media/file/6861141086.pdfIn PDF document text
- http://reclameindex.nl/images/uploads/genotijowitifavux.pdfIn PDF document text
- https://isuzuphonoi.com/data/dulieu/files/66997941691.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=compare+two+images+for+similarity+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_off0000c94d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC94D | 11072 bytes |
SHA-256: 59dbd32caac2263c41953b5fe7346d7ec1420aa122192ea8e74c710a0b8ebcf0 |
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font_01_sfnt_off0000e2f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2F6 | 18392 bytes |
SHA-256: f0cd007d9d6291979a347b78be85b5292ffdc08a596d576995374be227570674 |
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font_02_sfnt_off000113ce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113CE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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