MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample is a PDF file detected as malicious by ClamAV and an ML classifier. It contains a link farm pointing to various websites, including one with a 'utm_term' parameter suggesting a phishing lure. The PDF also leverages compromised CMS upload storage, indicating a tactic to host malicious content on seemingly legitimate but compromised sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://garglob.ru/uplcv?utm_term=how+to+unlock+if+i+forgot+pattern
- http://benedictinoselrosal.org/ckfinder/userfiles/files/rosotepoguk.pdf
- http://hindustanadvancedsolution.com/t/tutorfirm/uploads/ck/files/vunusalavinijogigi.pdf
- http://smalternatywa.pl/media/upload/files/0a2c28e17dc6c0edfb37da003093f194.pdf
- https://bhopalliteraturefestival.com/mpsdp/uploads/files/35790865913.pdf
- http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d88e4203cf---38600185995.pdf
- https://tyko.pl/userfiles/file/59149497006.pdf
- https://torbay.ru/images/uploads/file/56346751879.pdf
- https://szemvidito.hu/sfwkr/feltoltesek/Images/Image/difan.pdf
- https://samsungklimamodelleri.com/upload/ckfinder/files/vapofelax.pdf
- http://paulbwatkinslaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/27715122145.pdf
- https://icoachyou.biz/images/ckeditor/files/xexuzivamevariwufebuser.pdf
- https://www.wemservice.com/ckfinder/userfiles/files/72445575449.pdf
- http://studiodabo.eu/userfiles/files/74586383466.pdf
- http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f222f3bd1a---19233515703.pdf
- https://oykufestivali.com/ckfinder/userfiles/files/panadiwavotu.pdf
- http://plusdesignwebsite.com/userfiles/file/sapogazumosa.pdf
- https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16142bf0f409f4---27447629836.pdf
- https://satbietthu.com/luutru/files/76088760651.pdf
- https://vantainoidia.vn/ci/userfiles/files/74323319308.pdf
- https://highfieldhousehotel.net/nbloom/fckuploads/file/67682109792.pdf
- http://gutachterbewertung.de/userfiles/file/sizepoxafofokived.pdf
- http://brothersaluminium.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/16144d20bf387e---ruxudopal.pdf
- https://www.domaine-boussard-chablis.fr/ckfinder/userfiles/files/palikodizevirovuler.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_off0000bd2a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD2A | 16792 bytes |
font_01_sfnt_off0000d541.bin3c8b86dba6e400fbb31d71f17fdc36d6db3ed091973ea91f3fa976244900e5b1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD541 | 10756 bytes |
font_02_sfnt_off0000ee28.binc9320120af5282669f422231d7672183cf82fac831b9d442e7667769a3c216bc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE28 | 19008 bytes |
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