MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is often used to redirect users to malicious websites or download further payloads. Several heuristics indicate the PDF is part of a link farm, pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://inwebjor.ru/uplcv?utm_term=patellofemoral+joint+pain PDF link annotation
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/1608bd4d1ce1f7---16501979456.pdfIn PDF document text
- https://riolospettacoli.it/filesUploads/file/talumenupive.pdfIn PDF document text
- http://arunimaflavours.com/userfiles/file/15982660970.pdfIn PDF document text
- http://ergo-logo-bamberg.de/userfiles/file/19147689856.pdfIn PDF document text
- http://i-harmonics.com/upload/files/wixitelupivoxetekopu.pdfIn PDF document text
- https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/m2ueglal2k8c0fps1643oaf7ss/92345213062.pdfIn PDF document text
- http://cba60.com/clients/6/6c/6c2dd71b6188bc8e8f5adc6209c6f86c/File/gomafisudabu.pdfIn PDF document text
- http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160cb47aae797b---33600470155.pdfIn PDF document text
- http://aggengr.com/uploads/CMS/file/81747562301.pdfIn PDF document text
- http://usaoxin.com/userfiles/2021-5/file/18345807709.pdfIn PDF document text
- http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/bgk8op898gjqi0gcj49pt7ods4/67007217996.pdfIn PDF document text
- http://musclecar-taps.com/js/upload/files/ruvavujorifokavuwipeso.pdfIn PDF document text
- https://assurancemauricie.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078e45780eeb---tokevulado.pdfIn PDF document text
- https://bodwellassociates.com/wp-content/plugins/super-forms/uploads/php/files/c0d83318348df6d037b8076e6fa1992c/95078089708.pdfIn PDF document text
- https://annekienlen.fr/imagesfile/dotononogotetawukakenen.pdfIn PDF document text
- http://noahsmarinesurveyors.ca/userfiles/file/33612264879.pdfIn PDF document text
- http://s8radziejowice-paszkow.pl/userfiles/file/82273876467.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a34ee6d6c78---21507900074.pdfIn PDF document text
- http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160970f4d3ed00---jizekixejikipofav.pdfIn PDF document text
- http://barrybusiness-crm.com/ressource/devis-photo/files/badum.pdfIn PDF document text
- https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/cd969e070c1856d433810e6f2bc6bcfe/fogefazovumejabulaxox.pdfIn PDF document text
- https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/230492e35c0087c77ab1f19699381da5/82847941574.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_off0000d753.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD753 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ef65.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF65 | 16392 bytes |
SHA-256: 0f229f305d46ca1f7d549ba97d0c32c5c9e81b37cd5ea002f60920a60261ab25 |
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font_02_sfnt_off000119b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119B7 | 10480 bytes |
SHA-256: 48403d00dd789b3c3d45d92e1edc5ac2a8623bb7598d9ef3a9f96459c4eac136 |
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