MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. ClamAV and ML classifiers confirm its malicious nature, likely as a phishing or malware distribution vector. No scripts were extracted, but the extensive use of external links indicates a primary function of directing users to potentially harmful external resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 6
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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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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://cructi.ru/uplcv?utm_term=damage+done+warren+fellows+pdf PDF link annotation
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/16070e80715bfb---38423346386.pdfIn PDF document text
- http://daikinhbac.com/upload/files/tewavemukufumowemedug.pdfIn PDF document text
- https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/ggbt44bonfn1c1qgsq1e3id9e5/zarufederebo.pdfIn PDF document text
- https://shared401k.com/wp-content/plugins/super-forms/uploads/php/files/569aec223b37f5b6f6e6dfa41fe7e938/redowosamuvorizujifinirum.pdfIn PDF document text
- http://nuitsdartistes.eu/images/file/49220807168.pdfIn PDF document text
- http://hyundaihungthinh.com/uploads/images/files/15504207296.pdfIn PDF document text
- http://gshosnab.ru/userfiles/file/napenugufidijinebe.pdfIn PDF document text
- http://sazjah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd2a6dbc935---50406871633.pdfIn PDF document text
- https://vaynhanh365.net/contents/files/41544345747.pdfIn PDF document text
- http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160aaf11124719---88610295281.pdfIn PDF document text
- https://pemaboutiquehotel.com/assets/userfiles/files/55739211364.pdfIn PDF document text
- https://organicfertilizerproduction.com/d/files/61927283443.pdfIn PDF document text
- http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2864115944---detigivexowogimejor.pdfIn PDF document text
- http://intertexmedical.com/userfiles/files/33704705549.pdfIn PDF document text
- https://guapa2.com/admin/fck/file/fomekerigomitetezejavu.pdfIn PDF document text
- https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a17c2bdbd0f---dividuforomejewisumizaraf.pdfIn PDF document text
- http://morebricks.com/ckfinder/userfiles/files/genoxet.pdfIn PDF document text
- https://www.baileysmilk.com/wp-content/plugins/super-forms/uploads/php/files/31c5b697d7e0feca21e3515b9a533150/bofitam.pdfIn PDF document text
- http://itnetworkconsultingsf.com/helpdesk/app/webroot/img/userfiles/files/toropidudumer.pdfIn PDF document text
- http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160f6bd501b3d9---dagekozamilak.pdfIn PDF document text
- https://mauspro.net/upload/files/37535438717.pdfIn PDF document text
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610fc78090eb8---2722564451.pdfIn PDF document text
- http://derma-dts.de/files/file/xipawofolajafalunag.pdfIn PDF document text
- http://rzn-house.ru/upload/file/36947562232.pdfIn PDF document text
- https://paradigma.bg/uf/file/fobosaxadagofagitabuvoxu.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_off0000c6f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC6F0 | 17308 bytes |
SHA-256: a5d33b4e0641749b65f76a36c2f916b6a0f71028d673516485ecdcee16f9932c |
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font_01_sfnt_off0000f3de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3DE | 10740 bytes |
SHA-256: ce830cd1d00f149fb87280ae44e02b402f859de9d985b3205311f8d3c20f5065 |
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font_02_sfnt_off00010c61.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C61 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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