MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links to external resources, many of which are hosted on compromised WordPress sites. These links appear to be part of a link farm designed to redirect users to other malicious PDFs, likely for phishing or malware distribution. The ClamAV detection and ML classifier strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160757fdb6d8f4---befujow.pdf
- https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/c93b0edfc2320b07bd9a68aefb87e138/sopunobax.pdf
- https://beautyyaurient.com/editor_upload/file/44300673381.pdf
- https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/21d10960b5f64f80b433a246347e07ab/33630277161.pdf
- http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/vqas60ht460pm4o67ue3rgh2l1/japizazotep.pdf
- https://engineeredrepinc.com/wp-content/plugins/super-forms/uploads/php/files/6b8497db38884cf952fdb4a31f8f92d5/wululujepopejojates.pdf
- https://yziact.fr/wp-content/plugins/super-forms/uploads/php/files/7jddtkrqoaqntn9o432h1am5qi/46177502785.pdf
- http://business-plan-capalpha.eu/mbp/upload/images/images/upload/ckfinder/vanepage.pdf
- https://abeess.com/userfiles/file/67106322849.pdf
- http://baaningdoi.com/file_media/file_image/file/44207715300.pdf
- http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b9f28a80a0---37308951850.pdf
- https://www.focus.mu/wp-content/plugins/super-forms/uploads/php/files/b8802dbba42408fffa82e4386ccb8795/84297307836.pdf
- http://sibinetweek.ru/userfiles/file/86213847759.pdf
- http://mega-stainlesssteel.com/uploads/image/files/towelovopa.pdf
- https://www.properties-thassos.com/wp-content/plugins/super-forms/uploads/php/files/aveh9b69ncleqen46q91fglijs/46132795925.pdf
- https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606fc9e79313e---vadumujet.pdf
- https://alzubidi.com/userfiles/files/tukexosetutupaket.pdf
- http://ceskylakros.cz/userfiles/file/41145240741.pdf
- http://busangh.com/attfile/fckimg/file///202106171890_405330325.pdf
- http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080e73723209---90355555904.pdf
- http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071903a505ff---88942629086.pdf
- https://honkakuji.jp/honkakuji/images/ckfinder/files/nodudasu.pdf
- http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/160aa89789135b---18685279908.pdf
- https://netwindowvn.com/uploads/userfiles/file/sekalawimewitajikaxoz.pdf
- https://dazzlin.co.uk/wp-content/plugins/super-forms/uploads/php/files/0cd38cddd04fbdf0548a7ae9f1dded22/buzaxixizotexofur.pdf
- http://eaeocs.com/clients/c/c7/c75ed17bfa54634cfc1039f1b599a7e7/File/97369715790.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=unit+operation+in+food+and+agricultural+processing+pdf
- 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_off0000f161.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF161 | 16792 bytes |
font_01_sfnt_off00010973.binf6bacfa8cfa920ef52d0ddeb860bcbca7a41881a934bcc244cd0520274a3d04a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10973 | 18060 bytes |
font_02_sfnt_off00013901.bin394dd573f8f11f8f656c1d6dc30ada4875ce109d08ef053c3b5b3ae197e3a8cd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13901 | 10904 bytes |
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