MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded URLs and heuristics indicate it functions as a link farm and potentially a callback phishing lure. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to direct users to phishing sites or engage them in a scam. No scripts were extracted, but the document structure and embedded links are indicative of social engineering tactics.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://zelene-centrum.cz/webpagebuilder/ckfinder/userfiles/files/45610323988.pdf In PDF document text
- https://semagro-msw.ru/pics/images/file/31639379052.pdfIn PDF document text
- https://jlgardner.org/home/jlg/public_html/ckfinder/userfiles/files/wewupaw.pdfIn PDF document text
- https://recapress.com/ckfinder/userfiles/files/62487260329.pdfIn PDF document text
- http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cf6f4917f3---3305322647.pdfIn PDF document text
- http://xnucleus.com/members/member_images/files/48625248568.pdfIn PDF document text
- http://esistore.lu/userfiles/file/82750126449.pdfIn PDF document text
- https://tbsva.org/Upload/files/20210903230530.pdfIn PDF document text
- https://marblobath.com/app/webroot/img/files/91291528993.pdfIn PDF document text
- https://sandp-engineering.com/ckfinder/userfiles/files/8967013763.pdfIn PDF document text
- http://loaamtran.vn/files/usersfiles/files/59310473088.pdfIn PDF document text
- http://lyzph.com/userfiles/file/Fl202109010805312833.pdfIn PDF document text
- https://shoppingplanet.cityplanet.ro/ckfinder/userfiles/files/45438549624.pdfIn PDF document text
- http://autavrabek.cz/obrazky/file/48932114800.pdfIn PDF document text
- http://27derajat.com/assets/ckfinder/core/connector/php/uploads/files/55012944452.pdfIn PDF document text
- http://hotelniagararimini.eu/userfiles/files/jozijurawemomokeroneka.pdfIn PDF document text
- http://stavo-bazar.cz/userfiles/file/29547199132.pdfIn PDF document text
- https://peoplehelppeople.net/uploads/File/95109532648.pdfIn PDF document text
- http://gmei.lt/ckfinder/userfiles/files/pefiwin.pdfIn PDF document text
- https://accesoriosalmayor.com/images/userfiles/file/22431017483.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=phone+link+apkPDF 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_off0000eba6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBA6 | 19624 bytes |
SHA-256: 2ce8a9ce512c6600d9f845f839fbb3d16e13defa3fe3baac439a503bc8879523 |
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font_01_sfnt_off00011f29.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F29 | 10076 bytes |
SHA-256: cda0502a566ca6d5da50705091250b359be722db45dbb2df5e1a5424a8748a7c |
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font_02_sfnt_off0001356e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1356E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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