MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document contains numerous embedded URLs, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The primary function appears to be facilitating phishing or malware distribution through these external links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://pistant.ru/uplcv?utm_term=ejercicios+de+lectura+comprensiva+para+ni%C3%B1os+de+cuarto+grado PDF link annotation
- https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/n5hthpuospttql355n8dnqn0r8/sebeve.pdfIn PDF document text
- https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac568187b42---15082654938.pdfIn PDF document text
- http://foto-video.ch/userfiles/files/lusapaxariseluvom.pdfIn PDF document text
- https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/imfq6kdsbjo038tev65iua3qh8/60894843310.pdfIn PDF document text
- http://arcenevents.nl/site/upload/files/74500902400.pdfIn PDF document text
- http://przystaneknida.pl/data/aktualnosci_imgs/file/kamuxuz.pdfIn PDF document text
- http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2cd71cb176---66129274745.pdfIn PDF document text
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/dnnn918utbf9f97uckr8db58a2/50948250925.pdfIn PDF document text
- https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/afb1ff2b73f3568e0b59a56932c6ae2c/31713872246.pdfIn PDF document text
- http://envigest.cz/upload/file/4403441290.pdfIn PDF document text
- https://ngoctraithaibinhduong.com/uploads/news_file/tugusukejedefowolakovowex.pdfIn PDF document text
- https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/16102dce7cac79---dixuvamobosemiluwad.pdfIn PDF document text
- http://vinag7furniture.com/app/webroot/files/editor_upload/files/30512112244.pdfIn PDF document text
- https://pinkrali.com/calisma2/files/uploads/rutijikekivob.pdfIn PDF document text
- https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/jotfrgf17eeopeh39dfnlo4171/53079552682.pdfIn PDF document text
- https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/42719eipf712aggjq7k4sierd5/mexudekegefexa.pdfIn PDF document text
- http://kemenyseprosiklos.hu/upload/file/90976765517.pdfIn PDF document text
- https://angkoronetour.com/userfiles/file/dofowewuvedona.pdfIn PDF document text
- https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ebdd7b75c4---zixivalukopusuji.pdfIn PDF document text
- http://bundoreh.com/fckeditor/files/file/62144906235.pdfIn PDF document text
- http://donovaly-ubytovanie-safran.sk/web/userfiles/file/temiwebobodedefit.pdfIn PDF document text
- https://dolcezzecaffe.it/file/famugazewovarazimu.pdfIn PDF document text
- http://stainless-faucet.com/uploads/htmlupload/files/lubexaralosow.pdfIn PDF document text
- http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/160db1736ba74f---68673551789.pdfIn PDF document text
- http://ibshop.gr/uploads/_uploads/files/xijatelarojipevabejexotaw.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_off0000e1de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1DE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f9f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9F0 | 17788 bytes |
SHA-256: 439ef4a63d5610418bd0a36ef73568b477f61690957b7e69a098740a6fdf9709 |
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font_02_sfnt_off000126f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126F8 | 11340 bytes |
SHA-256: 5f811164cc649d5e378fd25feafb7a41df6b422aad1f596db222d6cd90a93547 |
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