MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains embedded JavaScript and a large number of external URIs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users. The primary attack pattern involves luring users through a malicious attachment, likely via spearphishing, to a site that hosts further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://ergo-logo-bamberg.de/userfiles/file/ripane.pdf
- http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607e79a657e18---dugiris.pdf
- http://www.pilonidalsinus.gen.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1607abf1b658a0---zakomixegaxijokex.pdf
- https://aqua2go.pl/galeria/file/rivutoru.pdf
- https://sgpropertylawyers.com/wp-content/plugins/super-forms/uploads/php/files/6bba052af9fd80c696ca31b912a50304/78929319345.pdf
- https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/160af75c28e72e---gorebowasurobuwada.pdf
- https://cpc-serbia.org/js//files/78426569732.pdf
- https://bodwellassociates.com/wp-content/plugins/super-forms/uploads/php/files/6f9390ae8c28e499b1071d522fff77ff/95856139359.pdf
- http://stkvn.ru/wp-content/plugins/super-forms/uploads/php/files/2b1eb232049de58934f60ad271faa478/97750207342.pdf
- https://gagiongvitgiong.com/ckfinder/userfiles/files/lopemumofitafu.pdf
- http://ohmamakitchen.com/uploads/files/5762737287.pdf
- https://www.hontoys.com.au/wp-content/plugins/super-forms/uploads/php/files/29ote9sdqoeqhjp4l643faub02/madow.pdf
- https://nutricionintravenosa.com/wp-content/plugins/super-forms/uploads/php/files/99dc1897a096a5b429bbc84b6ea5e3c8/wafuwafumeluwo.pdf
- http://commune-bourre.com/userfiles/file/38558531160.pdf
- http://industrialdevices.in/uploads/74062976472.pdf
- http://rebizplus.com/userfiles/file/80322213953.pdf
- http://osteriadelcampanile.com/userfiles/files/70126695870.pdf
- https://sportsht.com/userfiles/file/jumitejajojojogef.pdf
- http://1mosref.ru/ckfinder/userfiles/files/61782170950.pdf
- https://bayardplaza.co.uk/wp-content/plugins/super-forms/uploads/php/files/lj397shvuu6f00jna8c3fhq5tc/wabomofadelopamej.pdf
- https://bowenpainter.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085e06cb6f94---debisejekijukiwig.pdf
- http://hotelgiottotorino.com/userfiles/files/94580579536.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=exercices+corrig%C3%A9s+sur+les+pronoms+personnels+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_off0000c3de.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC3DE | 16792 bytes |
font_01_sfnt_off0000dbf5.bincf5fcbcf709f859db7689ca49c2e621618bc82105ffec33d28b90930aeb481b5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBF5 | 11040 bytes |
font_02_sfnt_off0000f519.bin596151d293f3d7aec9ff84658cd747232d45326b10f8db7299c75f477a08fd12 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF519 | 19344 bytes |
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