MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains embedded JavaScript and a link farm pointing to compromised WordPress upload directories and disposable hosting, likely serving as a lure for phishing or malware downloads. The presence of external URIs and a link farm suggests an attempt to redirect users to malicious sites, potentially exploiting vulnerabilities or delivering further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 7
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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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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 http://mebco.ru/images/file/12371111896.pdf In PDF document text
- https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16103ead384c39---10244566559.pdfIn PDF document text
- https://feriaesotericadeatocha.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce6f249b0c---91370106052.pdfIn PDF document text
- https://rafaela-motores.com/userfiles/file/pakugesekomejukavob.pdfIn PDF document text
- http://bronia.org/userfiles/file/83716026406.pdfIn PDF document text
- http://www.w.radeton.cz/ckfinder/userfiles/files/pugesuburoda.pdfIn PDF document text
- https://bamor.org/userfiles/file/fexuzo.pdfIn PDF document text
- http://doo-san.com/userfiles/file/20210611214928.pdfIn PDF document text
- http://diacritic.org/travel/app/webroot/img/files/radup.pdfIn PDF document text
- https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ae07a68988---6852119672.pdfIn PDF document text
- https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/fuuvkic6bgb3ofsgihi84fvt0i/segujodagilukaxomo.pdfIn PDF document text
- http://urgentcarepb.com/userfiles/file/10826883490.pdfIn PDF document text
- https://marciasmithconsulting.com/wp-content/plugins/super-forms/uploads/php/files/16c483e72781eb765d46e829c4ee6232/24289724194.pdfIn PDF document text
- http://synagoge-stommeln.de/ckfinder/userfiles/files/liwopikito.pdfIn PDF document text
- http://myphamasia.net/upload/files/30734474141.pdfIn PDF document text
- http://verzorgingsindex.nl/images/uploads/putilafidam.pdfIn PDF document text
- http://www.egavilanes.com/ckfinder/userfiles/files/9091034671.pdfIn PDF document text
- http://kurumakaitori-one.com/js/upload/files/tivesuvujewipok.pdfIn PDF document text
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0adf1402af---56852501329.pdfIn PDF document text
- http://cansuyu.org/resimler/files/xiwomozagiremarijeze.pdfIn PDF document text
- http://bukharajohnscreek.com/sites/default/files/file/44569781377.pdfIn PDF document text
- https://nhachoxebus.com/upload/fck/file/89936886726.pdfIn PDF document text
- https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/ae87598095cfe54773316d1c9996309e/52916629613.pdfIn PDF document text
- http://ncdesign.it/userfiles/files/fenumagifipux.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=the+sun+is+also+a+star+pdf+espa%C3%B1olPDF link annotation
- 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_off0000d454.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD454 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ec66.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC66 | 18252 bytes |
SHA-256: 8b9ba29e2661dce43186663f39d66166a6e1d8f83bec147fe9d02e448fc6007e |
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font_02_sfnt_off00011bf8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BF8 | 10864 bytes |
SHA-256: df5f9fccd4c6b6243123af3a6c216d72e53cb27844de186e20a7158f51acae05 |
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