MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many of which point to compromised CMS upload directories, suggesting a tactic to host malicious content. The PDF structure and link farm heuristics indicate an attempt to lure users to external resources, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/a8lbu05kn57q51kghtvdmjel0f/kagexifureziwinobakavuze.pdf
- http://www.socalgreatwhite.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072f48ded31b---gifonudenopi.pdf
- http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/160744772d575f---8582070202.pdf
- http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16095495232e73---donawenizowabewifo.pdf
- http://automsystem.com/UploadFile/file/20210513031712667.pdf
- http://driver-jazda.pl/upload/file/33977661581.pdf
- http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/290510106b28772afe9078f278c0ffe6/torijinipusibenomexo.pdf
- https://xn--22ck6bdp5cach0mc23a.com/ckfinder/userfiles/files/75692386098.pdf
- http://parejalecaros.com/adjunto/upload/fck/files/bixegogimazufira.pdf
- https://plswa.com/wp-content/plugins/super-forms/uploads/php/files/49c90d41ddba6453e4170ba8692d1080/tazaru.pdf
- http://bright-inter.com/file_media/file_image/file/menobam.pdf
- https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/d40d499dcbe433fedf7b4d2596bbad92/wuduxilu.pdf
- http://cosmosimpex.com/app/webroot/ckfinder/userfiles/files/tetuvuvoban.pdf
- https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/ce3e68db85de9ed3a7bbef3514fea5c5/favosanav.pdf
- https://abe-rdc.com/userfiles/file/81676925623.pdf
- http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a21e81699c---pebofinuriborakomukone.pdf
- https://vieclamxaydung24h.com/upload/files/mefexagoxedawi.pdf
- http://1960ihs.com/clients/e/e0/e0b58928a48036c9af8d6cfc9cffdd99/File/38402092121.pdf
- https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608654e77ac8b---tikuvugusuwi.pdf
- https://tonwen.org/userfiles/file/97980308208.pdf
- http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16098848082701---nidajidire.pdf
- http://bitite.lv/media/txt/122/file/7319489219.pdf
- http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f6d8a958bd---kapoxaxebuguduxedako.pdf
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/617d55a6880f6b83b2b2eaf0278151c7/solibaxisakilaziwajizef.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=can+i+run+10km+everyday
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010280.bin396857db8aafd78a9c7470f43fc00525363b897c51027349e6eff487f1ecffcd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10280 | 17120 bytes |
font_01_sfnt_off00012f39.bin10a3745d450ec3597697f622ddfde11951bd80e077f0643ace76ffe2c31d57fe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F39 | 10556 bytes |
font_02_sfnt_off0001475d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1475D | 16792 bytes |
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