MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample is a PDF file flagged by ML classifiers and ClamAV as malicious. It contains numerous embedded URLs, many pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious or phishing sites. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a tactic to obscure the true destination by using disposable hosting and UTM parameters.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://crewmak.ru/uplcv?utm_term=shs+biology+textbook+pdf PDF link annotation
- http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161305a18a818b---vilasekofuzip.pdfIn PDF document text
- https://coolingrealestate.com/your-home-cleaner/FCKuploads/file/30029751100.pdfIn PDF document text
- http://teamwork-poetschke.com/ckfinder/userfiles/files/sirabeveka.pdfIn PDF document text
- http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/161478c8521609---21623768356.pdfIn PDF document text
- http://videoacceso.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142bf521f313---pinunodimete.pdfIn PDF document text
- http://levakov132.ru/userfiles/file/lasebokovikoxetedajonakam.pdfIn PDF document text
- http://didaconcept.com/admin/fckeditor/file/rivirokukoje.pdfIn PDF document text
- https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/c93vd5jmtuqga7il2pjmnbgqv4/16808487310.pdfIn PDF document text
- http://111-orte.com/testarea/cwsCMSlight/media/files/nimorofopefuterezusitave.pdfIn PDF document text
- https://angkaindaman.com/contents/files/deliruxavirovisu.pdfIn PDF document text
- http://cjpharmtech.com/upload/files/vadufisewal.pdfIn PDF document text
- https://grandplaza.bg/uploads/assets/file/83084002849.pdfIn PDF document text
- https://sahyadrisevasanstha.in/userfiles/file/sisepenitulevejeridos.pdfIn PDF document text
- http://projecthouse.bg/uploads/CKfinder/files/ronazupima.pdfIn PDF document text
- http://chromowane.com/userfiles/file/venorulowuxujuduzexaxa.pdfIn PDF document text
- https://pokereshop.cz/data/file/59100230363.pdfIn PDF document text
- https://franciscovalles.comtraining.cl/userfiles/files/jekix.pdfIn PDF document text
- http://icaalliance.org/filespath/files/20210917130237.pdfIn PDF document text
- http://soldearenales.com/galeria/files/99045374466.pdfIn PDF document text
- http://kme-kme.cz/files/file/74090100810.pdfIn PDF document text
- http://cestovni-postylka.eu/userfiles/file/84743476524.pdfIn PDF document text
- https://westhigienia.hu/editor_up/woretorifirileb.pdfIn PDF document text
- http://aliceinformaticasrl.com/user/pages/87350552564.pdfIn PDF document text
- http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b9027cba15---zewugafuzafemepugovabine.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_off0000b060.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB060 | 10936 bytes |
SHA-256: cfd44aa40410971ead6010c4e9db5a50ba8417abdad2c0d7011174840a8c0c33 |
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font_01_sfnt_off0000c972.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC972 | 15684 bytes |
SHA-256: acac185683e54cfd2653adc760220fb1628418f1bb0897f88682214a9ccc2d47 |
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font_02_sfnt_off0000f1d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1D9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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