MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file contains embedded JavaScript and numerous external URIs, many of which are part of a link farm hosted on potentially compromised or disposable domains. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or SEO abuse. The embedded JavaScript is a common method for initiating malicious actions within PDF documents.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://synerhu.ru/uplcv?utm_term=can+you+get+kindle+on+android PDF link annotation
- http://peach2560.xyz/js/ckfinder/userfiles/files/54954433498.pdfIn PDF document text
- http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f1320532e2---88581831148.pdfIn PDF document text
- http://regalmotors-jp.com/js/upload/files/wajakunigibetuwatagun.pdfIn PDF document text
- http://sage-chem.com/image/files/20210902_002247.pdfIn PDF document text
- http://bresky.cz/res/file/poburigasumab.pdfIn PDF document text
- https://invest.pl/userfiles/file/252055661.pdfIn PDF document text
- http://www.saletime.gr/admin/fckfiles/file/85894290570.pdfIn PDF document text
- http://harlit.com/ckfinder/userfiles/files/20210904_172605.pdfIn PDF document text
- https://perfectsextherapy.com/public_html/userfiles/file/69733937638.pdfIn PDF document text
- http://bbmeti.it/userfiles/files/61660815382.pdfIn PDF document text
- https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/161333d352ae59---tijawiraboxet.pdfIn PDF document text
- https://istocdukkan.com/userfiles/files/55778891873.pdfIn PDF document text
- http://acelybio.com/upload/files/lazozavugosawoledepokamo.pdfIn PDF document text
- http://narnivet.com/userfiles/files/67529896006.pdfIn PDF document text
- https://tenekedjieva.com/uploads/file/wisovusoli.pdfIn PDF document text
- http://oris-am.com/editor_up/32534038330.pdfIn PDF document text
- https://rosenstein.lu/userfiles/files/89183224630.pdfIn PDF document text
- https://readandenjoy.ae/userfiles/files/46344756093.pdfIn PDF document text
- http://epmresearch.org/userfiles/files/vozedipufol.pdfIn PDF document text
- https://dolmalatrek.com/userfiles/file/37801469240.pdfIn PDF document text
- https://www.alongsideasia.com/wp-content/plugins/super-forms/uploads/php/files/10ac80635fa49d831965acd8f3860d01/79164905433.pdfIn PDF document text
- http://art-ball.net/files/file/54608797908.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_off0000e0b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0B4 | 18476 bytes |
SHA-256: 2856099ab8c58d7f2287fb5dc34b5e1c45fc260b9c868e395191af89e80ed43d |
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font_01_sfnt_off000110f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110F5 | 10592 bytes |
SHA-256: 653da1774722c951403d08fa0a8853d5ed3f09946c231558201d2e17e7b8e4d4 |
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font_02_sfnt_off0001291a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1291A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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