MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs pointing to compromised WordPress sites, indicating it functions as a link farm. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly suggest this is a malicious document designed to redirect users to potentially harmful content. The ClamAV detection further supports its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://medvor.ru/uplcv?utm_term=the+arrow+and+the+song+question+answer
- https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/2f4b0fa61de5b009ab3e0ae2fae3d962/8749774452.pdf
- https://daleplumbinginc.com/wp-content/plugins/super-forms/uploads/php/files/538a68d90a0025c4fe5cc51cc0cab222/81964673625.pdf
- https://marosme.ro/hirek/file/71639189587.pdf
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/1607ce2ec9b344---wejubusobanifaremokaj.pdf
- https://honkakuji.jp/honkakuji/images/ckfinder/files/13843724775.pdf
- http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606d81422e6c5---3409183681.pdf
- http://urjabatteries.in/userfiles/file/muritedunulakeremab.pdf
- https://euroroma-bg.org/files/file/lutikazupu.pdf
- http://xn--o39a91gvwm83kbsn.net/FileData/ckfinder/files/20210625_C38A5D8F010165DD.pdf
- https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/9d2853e97a95fb67bc70c52295033d3a/80348513568.pdf
- http://architettorobertafasola.eu/userfiles/files/tenopunidej.pdf
- http://anhuizpyy.com/upload_fck/file/2021-5-11/20210511184858281718.pdf
- http://albatrossmrn.com/konadnew/userfiles/file/42281990672.pdf
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac8d2158c91---76694620698.pdf
- http://sbsinternationalschool.org/sbsisnew/userfiles/file/fuzifogusikedemozofimagi.pdf
- https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/5dmi4adk4ehi9kvnbqr7cr31v0/masuvoriwav.pdf
- http://asupuro.com/user_data/image//file/xipolekoniwogik.pdf
- https://danielstrehlau.com/userfiles/file/pofojosele.pdf
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/16081f252a26d4---64838749990.pdf
- https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/df967898d63f80a564d423ed8dfec8eb/24778985703.pdf
- https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160909b8852214---76655978201.pdf
- https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1609a0b45ce434---30362034041.pdf
- https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f40970ef44---77841901799.pdf
- https://shared401k.com/wp-content/plugins/super-forms/uploads/php/files/9ab2f2090c2c37eef73d4b58cc3fbf74/79922969588.pdf
- http://juniorsmagazine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c85b16884e---31754570600.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_off0000d26c.bincd3850c54eddb5a908fbd616d3e75acea63bad5ab20928c2b97f6587615cd7ae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD26C | 16928 bytes |
font_01_sfnt_off0000fe6b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE6B | 16792 bytes |
font_02_sfnt_off00011682.binf7a7929fd638daffc3f908511c5cce3cf54c909f85f28201ca385cdc2eb0f4f6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11682 | 10776 bytes |
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