MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by a machine learning classifier and ClamAV. It contains numerous embedded URLs, many pointing to compromised WordPress upload directories, suggesting it functions as a link farm. The presence of these links, combined with the PDF's structure, indicates a likely phishing or malware distribution attempt, potentially leveraging a compromised CMS for hosting malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
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.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608c986e7126e---88900787678.pdf
- https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/93140c1df5f398777d3eacfad4ddd5ea/58392137150.pdf
- https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c252de9c6ff---jitemu.pdf
- http://dzbnf.com/upload/file///41231004500.pdf
- https://carpanea.it/wp-content/plugins/super-forms/uploads/php/files/f842384de95f440bb74f2121c82f76cb/3936167151.pdf
- http://xn----7sbab1bcaqplb0ccyi9d.xn--p1ai/files/file/xezajitareposujafunomugij.pdf
- http://tavernadelsnoguers.com/wp-content/plugins/super-forms/uploads/php/files/e00bd511afe922f55b25ee14c88decea/bufuvidasubede.pdf
- http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a011ba6825e---6361223376.pdf
- http://4grd.com/cmsimages/file/36194713566.pdf
- http://thietbiotovn.com/Images_upload/files/26690993242.pdf
- http://mikomisushiwc.com/uploads/files/63790606956.pdf
- http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16085902c1ea5a---93323202906.pdf
- https://bechtoldpaving.com/wp-content/plugins/super-forms/uploads/php/files/93484a61495d86fd4c6d7a9f383697a7/90608566701.pdf
- https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/ftnbt642e249jmrv6s43cvq41h/79825465853.pdf
- https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/aqsgo3apsa86n12vceokgmb8cm/gukela.pdf
- http://barsugo.com/ckfinder/userfiles/files/nolakupa.pdf
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/891d8739517dc7383f872f144c1d09d7/mufuvu.pdf
- http://ankaser.com/userfiles/file/juvoxitosaropufogokome.pdf
- http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbeab6e2cfb---14515403999.pdf
- http://suncreekpuppies.com/clients/8/88/88daaab1104cc9784d9cd8b59d189b35/File/42516859987.pdf
- http://teplo76.ru/uploads/file/vudupogezekevepibas.pdf
- https://consultingexpert.eu/fckeditor/userfiles/file/mupirusile.pdf
- http://piemonteforyou.it/userfiles/file/43812909881.pdf
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096fc67b5dd8---67680763795.pdf
- https://harrisitalia.it/uploads/file/dabiwupovawoboto.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=free+fire+game+hack
- http://lovewhereyoulv.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/1ff41ae0aa14011fcea6898ce5432ead/wakuzawarosa.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_off0000ebe3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBE3 | 16792 bytes |
font_01_sfnt_off000103f5.bin54f51c06468457c238271df896c048a30fd9a0bdc16bdd307a540356b3fa7428 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103F5 | 17464 bytes |
font_02_sfnt_off000130fc.binbbea19967bdf0e191dc9f63e27aec87b7a60280f302c8999f5c96431f6727aba |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x130FC | 10316 bytes |
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