MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, specifically as a phishing or trojan distribution vehicle. It contains numerous embedded URLs pointing to compromised websites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. While no scripts were explicitly extracted, the nature of the embedded URLs and the ClamAV detection indicate a high likelihood of malicious intent, possibly involving JavaScript execution within the PDF to facilitate further compromise.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://queure.ru/uplcv?utm_term=read+injustice+year+zero+online PDF link annotation
- http://otestmanager.com/club/data/userfiles/file/20210919121424.pdfIn PDF document text
- http://carzip.biz/files/uploads/files/lugopibe.pdfIn PDF document text
- https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/d35751e78942381f8b30eabe190896a5/baxaxededanoxarikotadarim.pdfIn PDF document text
- http://pttaccounting.com/userfiles/files/2163051639.pdfIn PDF document text
- http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144f2c4a6e3a---46765512797.pdfIn PDF document text
- http://gapp.fr/medias/files/97252006422.pdfIn PDF document text
- http://gniortho.com/files/Upload/file/69425989386.pdfIn PDF document text
- http://stihoplet.by/upload/editor/files/pipoba.pdfIn PDF document text
- http://abwlondonblvd.com/uploads/files/xijozopekewa.pdfIn PDF document text
- http://mai-colle.jp/userfiles/file/81097883654.pdfIn PDF document text
- https://panegovernance.com/ourprojects/chowki/UserFiles/file/40363553519.pdfIn PDF document text
- https://honghow.com/ckfinder/userfiles/files/simuvawobofo.pdfIn PDF document text
- http://www.southpointinstitutehowrah.com/admin/uploads/file/budupi.pdfIn PDF document text
- http://finara-v.com/file_media/file_image/file/nadatobir.pdfIn PDF document text
- https://dragonexpressml.com/userfiles/files/lekifegulawo.pdfIn PDF document text
- https://grootformaatspandoeken.nl/userfiles/file/roxabaxi.pdfIn PDF document text
- http://evo-models.com/uploads/userfiles/files/korixufako.pdfIn PDF document text
- https://californiaoptionsrealestate.com/wp-content/plugins/super-forms/uploads/php/files/1663c3aa1843d6351b6464158adcf3cc/sewusisuz.pdfIn PDF document text
- http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133dfa8c782a---74478911213.pdfIn PDF document text
- http://strojsteel.cz/webpagebuilder/ckfinder/userfiles/files/jagoki.pdfIn PDF document text
- http://jumpinfit.it/userfiles/files/feduru.pdfIn PDF document text
- https://www.osteopathe-montpellier-sud.fr/ckfinder/userfiles/files/94830062091.pdfIn PDF document text
- http://oralrem.kz/ckfinder/userfiles/files/81314942360.pdfIn PDF document text
- http://aodaiminhhanh.com/app/webroot/uploads/files/73764596035.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_off0000dab4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAB4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f2cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2CB | 10812 bytes |
SHA-256: 8e1831ad5e8e519c6a36d847cf64cdb0996df6152d60318b1a3a315be32aafd5 |
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font_02_sfnt_off00010bd8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BD8 | 17600 bytes |
SHA-256: 9ffe13ffdf6cebee84a488d5d732a258718e8ad950e1bbc9b138ae5d22fa0b6b |
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